技术领域Technical Field
本公开实施例涉及光学测试技术领域，更具体地，涉及一种光学镜头偏心测试系统及一种光学镜头偏心测试方法。The embodiments of the present disclosure relate to the field of optical testing technology, and more specifically, to an optical lens eccentricity testing system and an optical lens eccentricity testing method.
背景技术Background technique
随着VR(Virtual Reality，虚拟现实)技术的发展，VR头戴设备中的光学镜头已经不再局限于一片式菲涅尔或非球面镜片，比如近些年来，两片式、三片式镜片组成的光学系统越来越多的应用在VR头戴设备中。With the development of VR (Virtual Reality) technology, the optical lenses in VR headsets are no longer limited to one-piece Fresnel or aspherical lenses. For example, in recent years, optical systems consisting of two-piece and three-piece lenses are increasingly used in VR headsets.
在实际镜头的生产中，受到光学加工和系统装调的限制，通常会产生一定程度的偏心误差，从而会破坏光学镜头的共轴性，影响光学镜头产品质量。为了检测生产的镜头是否合格，以保证设备所用镜头满足成像质量规格要求，需要快速在线评价镜头偏心，以评估镜头性能。In the actual production of lenses, due to the limitations of optical processing and system adjustment, a certain degree of eccentricity error is usually generated, which will destroy the coaxiality of the optical lens and affect the quality of the optical lens product. In order to detect whether the produced lens is qualified and to ensure that the lens used in the equipment meets the imaging quality specification requirements, it is necessary to quickly evaluate the eccentricity of the lens online to evaluate the lens performance.
常用测量偏心的设备是偏心仪，可以通过反射或透射的模式测量镜头的偏心，但是其测量时间较长，自动化程度低。The commonly used device for measuring eccentricity is an eccentricity meter, which can measure the eccentricity of the lens through reflection or transmission mode, but its measurement time is long and the degree of automation is low.
发明内容Summary of the invention
本公开实施例的一个目的是提供一种光学镜头偏心测试的新的技术方案。One purpose of the embodiments of the present disclosure is to provide a new technical solution for testing the eccentricity of an optical lens.
根据本公开的第一方面，提供了一种光学镜头偏心测试系统，包括：承载模组，用于承载所述光学镜头；相机模组，用于拍摄所述光学镜头得到所述光学镜头的实像；在所述承载模组位于第二位置的情况下，拍摄所述光学镜头所成虚像；以及，测试模组，用于根据所述实像获取所述光学镜头中设定镜片的光学中心的第一位置；根据所述第一位置控制所述承载模组移动至所述第二位置，使得所述设定镜片的光轴与相机的光轴重合；根据所述虚像获取所述光学镜头的偏心数值。According to a first aspect of the present disclosure, there is provided an optical lens eccentricity testing system, comprising: a carrying module for carrying the optical lens; a camera module for photographing the optical lens to obtain a real image of the optical lens; photographing a virtual image formed by the optical lens when the carrying module is located at a second position; and a testing module for obtaining a first position of an optical center of a set lens in the optical lens according to the real image; controlling the carrying module to move to the second position according to the first position so that the optical axis of the set lens coincides with the optical axis of the camera; and obtaining the eccentricity value of the optical lens according to the virtual image.
可选地，所述相机模组包括第一相机和第二相机；其中，所述第一相机用于拍摄所述实像；所述第二相机用于拍摄所述虚像。Optionally, the camera module includes a first camera and a second camera; wherein the first camera is used to capture the real image; and the second camera is used to capture the virtual image.
可选地，所述相机模组包括第一相机；所述测试模组，用于控制所述第一相机移动至第一设定位置，在所述第一相机位于所述第一设定位置的情况下，控制所述第一相机拍摄所述实像；控制所述第一相机移动至第二设定位置，在所述第一相机位于所述第二设定位置的情况下，控制所述第一相机拍摄所述虚像。Optionally, the camera module includes a first camera; the test module is used to control the first camera to move to a first set position, and when the first camera is located at the first set position, control the first camera to capture the real image; control the first camera to move to a second set position, and when the first camera is located at the second set position, control the first camera to capture the virtual image.
可选地，所述测试模组，用于根据所述实像获取所述光学镜头的定位基准的位置；根据所述定位基准的位置、及设定的所述定位基准与所述光学中心间的相对位置关系，获取所述第一位置。Optionally, the test module is used to obtain the position of the positioning reference of the optical lens according to the real image; and obtain the first position according to the position of the positioning reference and the set relative position relationship between the positioning reference and the optical center.
可选地，所述测试模组，用于根据所述实像获取所述光学镜头的至少三个定位基准的位置，所述至少三个定位基准的位置不在一条直线上；根据所述至少三个定位基准的位置获取第一圆的圆心位置，其中，所述至少三个定位基准的位置分别位于所述第一圆上；根据所述圆心位置、及所述圆心位置与所述光学中心间的相对位置关系，获取所述第一位置。Optionally, the test module is used to obtain the positions of at least three positioning references of the optical lens according to the real image, and the positions of the at least three positioning references are not on a straight line; obtain the center position of a first circle according to the positions of the at least three positioning references, wherein the positions of the at least three positioning references are respectively located on the first circle; and obtain the first position according to the center position and the relative position relationship between the center position and the optical center.
可选地，所述承载模组包括：承载台，用于承载所述光学镜头；以及，压盖，用于在所述承载台承载有所述光学镜头的情况下，压覆在所述光学镜头的上方。Optionally, the carrying module includes: a carrying platform for carrying the optical lens; and a pressing cover for pressing on top of the optical lens when the carrying platform carries the optical lens.
可选地，所述光学镜头偏心测试系统还包括：第一电机，用于驱动所述承载台沿第一方向移动；以及，第二电机，用于驱动所述承载台沿第二方向移动，所述第一方向与所述第二方向相垂直。Optionally, the optical lens eccentricity testing system further includes: a first motor, used for driving the supporting platform to move along a first direction; and a second motor, used for driving the supporting platform to move along a second direction, the first direction being perpendicular to the second direction.
可选地，所述光学镜头偏心测试系统还包括：照明光源；所述相机模组，用于在所述照明光源处于开状态且所述光学镜头位于所述照明光源的光照范围内的情况下，拍摄所述实像。Optionally, the optical lens eccentricity testing system further includes: an illumination light source; and a camera module, configured to capture the real image when the illumination light source is in an on state and the optical lens is within the illumination range of the illumination light source.
可选地，所述测试模组，用于在所述承载模组位于所述第二位置的情况下，控制所述光学镜头的屏幕显示设定图卡；所述相机模组，用于在所述承载模组位于所述第二位置的情况下，拍摄所述光学镜头所成的对应所述图卡的虚像。Optionally, the test module is used to control the screen display setting card of the optical lens when the carrying module is located in the second position; and the camera module is used to capture the virtual image formed by the optical lens corresponding to the card when the carrying module is located in the second position.
根据本公开的第二方面，提供了一种光学镜头偏心测试方法，应用于根据本公开第一方面中任一所述的光学镜头偏心测试系统，包括：所述承载模组承载所述光学镜头；所述相机模组拍摄所述光学镜头得到所述光学镜头的实像；所述测试模组根据所述实像获取所述光学镜头中设定镜片的光学中心的第一位置；所述测试模组根据所述第一位置控制所述承载模组移动至所述第二位置，使得所述设定镜片的光轴与相机的光轴重合；所述相机模组在所述承载模组位于第二位置的情况下，拍摄所述光学镜头所成虚像；所述测试模组根据所述虚像获取所述光学镜头的偏心数值。According to a second aspect of the present disclosure, a method for testing eccentricity of an optical lens is provided, which is applied to an optical lens eccentricity testing system according to any one of the first aspects of the present disclosure, comprising: the carrying module carries the optical lens; the camera module photographs the optical lens to obtain a real image of the optical lens; the testing module obtains a first position of an optical center of a set lens in the optical lens according to the real image; the testing module controls the carrying module to move to the second position according to the first position, so that the optical axis of the set lens coincides with the optical axis of the camera; the camera module photographs a virtual image formed by the optical lens when the carrying module is located at the second position; and the testing module obtains the eccentricity value of the optical lens according to the virtual image.
本公开实施例的一个有益效果在于，由承载模组承载光学镜头；由相机模组拍摄光学镜头得到光学镜头的实像，并在承载模组位于第二位置的情况下拍摄光学镜头所成虚像；由测试模组根据实像获取光学镜头中设定镜片的光学中心的第一位置，再根据第一位置控制承载模组移动至第二位置使得设定镜片的光轴与相机的光轴重合，并根据虚像获取光学镜头的偏心数值。本实施例提供的测试系统可以实现对光学镜头的快速自动化偏心测试。One beneficial effect of the disclosed embodiment is that the optical lens is carried by the carrying module; the real image of the optical lens is obtained by photographing the optical lens by the camera module, and the virtual image formed by the optical lens is photographed when the carrying module is located at the second position; the first position of the optical center of the set lens in the optical lens is obtained by the test module according to the real image, and then the carrying module is controlled to move to the second position according to the first position so that the optical axis of the set lens coincides with the optical axis of the camera, and the eccentricity value of the optical lens is obtained according to the virtual image. The test system provided by this embodiment can realize the rapid and automated eccentricity test of the optical lens.
通过以下参照附图对本说明书的示例性实施例的详细描述，本说明书的其它特征及其优点将会变得清楚。Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
被结合在说明书中并构成说明书的一部分的附图示出了本说明书的实施例，并且连同其说明一起用于解释本说明书的原理。The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.
图1是本公开一实施例的一种光学镜头偏心测试系统的示意图；FIG1 is a schematic diagram of an optical lens eccentricity testing system according to an embodiment of the present disclosure;
图2是本公开一实施例的光学镜头偏心示意图；FIG2 is a schematic diagram of an optical lens eccentricity according to an embodiment of the present disclosure;
图3是本公开一实施例的光学镜头移动方向的示意图；FIG3 is a schematic diagram of the moving direction of the optical lens according to an embodiment of the present disclosure;
图4是本公开一实施例的确定第一位置的示意图；FIG4 is a schematic diagram of determining a first position according to an embodiment of the present disclosure;
图5是本公开一实施例的相机拍摄光学镜头所成虚像的示意图；FIG5 is a schematic diagram of a virtual image formed by an optical lens of a camera according to an embodiment of the present disclosure;
图6是本公开一实施例的一种光学镜头偏心测试方法的流程示意图。FIG. 6 is a flow chart of an optical lens eccentricity testing method according to an embodiment of the present disclosure.
附图说明：Description of the drawings:
1、相机模组；2、测试模组；3、第一相机；4、第二相机；5、承载台；6、第一电机；7、第二电机；8、光学镜头；9、屏幕；10、定位基准；11、圆心位置；12、光学中心。1. Camera module; 2. Test module; 3. First camera; 4. Second camera; 5. Carrying platform; 6. First motor; 7. Second motor; 8. Optical lens; 9. Screen; 10. Positioning reference; 11. Center of circle; 12. Optical center.
具体实施方式Detailed ways
下面将详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.
本申请的说明书和权利要求书中的术语“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。The features of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.
在本申请的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
本实施例中的光学镜头可以由两片式镜片、三片式镜片组成，及可以由其他数量的多片式镜片组成。对于质量合格、能够满足成像质量规格要求的光学镜头，其偏心数值应符合要求，比如可以要求光学镜头的偏心数值不大于相应设定阈值。The optical lens in this embodiment may be composed of two lenses, three lenses, or other numbers of multiple lenses. For an optical lens of qualified quality that can meet the imaging quality specification requirements, its eccentricity value should meet the requirements, for example, the eccentricity value of the optical lens may be required to be no greater than a corresponding set threshold.
但在实际镜头的生产中，受到光学加工和系统装调的限制，通常会产生一定程度的偏心误差，从而会破坏光学镜头的共轴性(请参考图2)，影响光学镜头产品质量。However, in the actual production of lenses, due to the limitations of optical processing and system adjustment, a certain degree of eccentricity error will usually occur, which will destroy the coaxiality of the optical lens (please refer to Figure 2) and affect the quality of the optical lens product.
以三片式镜片组成的光学镜头为例，请参考图2，光学镜头在生产中的误差会导致实际光轴(如图2中虚线所示)偏离理想光轴(如图2中实线所示)，即光学镜头存在偏心误差。Taking an optical lens composed of three lenses as an example, please refer to Figure 2. The error in the production of the optical lens will cause the actual optical axis (as shown by the dotted line in Figure 2) to deviate from the ideal optical axis (as shown by the solid line in Figure 2), that is, the optical lens has an eccentricity error.
在双目镜头组装中，这种偏心误差将导致合像的误差，若不经过校准，人眼长时间观察容易产生晕眩等不适感觉。因此，在光学镜头生产过程中，需要将组装偏心控制在一定规格范围内并且进行有效的监控。In binocular lens assembly, this eccentricity error will lead to an error in the combined image. If it is not calibrated, the human eye will easily feel dizzy and uncomfortable after observing for a long time. Therefore, in the optical lens production process, the assembly eccentricity needs to be controlled within a certain specification range and effectively monitored.
基于上述内容，为了检测生产的光学镜头是否合格，以保证设备所用光学镜头满足成像质量规格要求，需要快速在线评价镜头偏心，以评估镜头性能。Based on the above, in order to detect whether the produced optical lens is qualified and to ensure that the optical lens used in the equipment meets the imaging quality specification requirements, it is necessary to quickly evaluate the lens eccentricity online to evaluate the lens performance.
请参考图1～图5，本公开实施例提供了一种光学镜头偏心测试系统，该系统可以包括：承载模组、相机模组1和测试模组2。该系统用于测试光学镜头8。本实施例提供的光学镜头偏心测试系统能够实现快速在线评价镜头偏心以评估镜头性能，且测试自动化程度高。Please refer to Figures 1 to 5, an embodiment of the present disclosure provides an optical lens eccentricity testing system, which may include: a bearing module, a camera module 1 and a testing module 2. The system is used to test an optical lens 8. The optical lens eccentricity testing system provided in this embodiment can realize rapid online evaluation of lens eccentricity to evaluate lens performance, and the test has a high degree of automation.
本实施例中，所述承载模组用于承载所述光学镜头8。In this embodiment, the carrying module is used to carry the optical lens 8 .
详细地，通过承载模组对被测试的光学镜头8进行承载，可对光学镜头8进行固定，以避免光学镜头8在测试过程中发生移动从而影响测试精度及效果。In detail, the optical lens 8 to be tested is supported by the support module, so that the optical lens 8 can be fixed to prevent the optical lens 8 from moving during the test and thus affecting the test accuracy and effect.
本实施例中，所述相机模组1用于拍摄所述光学镜头8得到所述光学镜头8的实像。举例来说，可以利用图1中的左侧相机拍摄实像，拍摄到的实像可以如图4所示。In this embodiment, the camera module 1 is used to photograph the optical lens 8 to obtain a real image of the optical lens 8. For example, the left camera in FIG1 may be used to photograph a real image, and the photographed real image may be shown in FIG4 .
详细地，通过对被测试的光学镜头8拍摄实像，可根据该实像确定光学镜头8中设定镜片的光学中心的位置，以便于可基于该光学中心来拍摄光学镜头8所成虚像，进而根据该虚像得到光学镜头8的偏心数值。In detail, by capturing a real image of the optical lens 8 being tested, the position of the optical center of the lens set in the optical lens 8 can be determined based on the real image, so that a virtual image formed by the optical lens 8 can be captured based on the optical center, and then the eccentricity value of the optical lens 8 can be obtained based on the virtual image.
基于上述内容，本实施例中，所述测试模组2用于根据所述实像获取所述光学镜头8中设定镜片的光学中心12的第一位置。Based on the above content, in this embodiment, the test module 2 is used to obtain the first position of the optical center 12 of the set lens in the optical lens 8 according to the real image.
请参考图1，测试模组2可以为一台计算机。Please refer to FIG. 1 , the test module 2 may be a computer.
通常情况下，该设定镜片可以为距离拍摄相机最近的镜片。Usually, the setting lens may be the lens closest to the shooting camera.
详细地，由于该光学中心12的位置不便于在光学镜头8上直接标识出，故而在可行的实现方式中，本实施例可以根据拍摄光学镜头8所得到的实像，以及结合预先设定好的该光学中心12与光学镜头8的相对位置关系，来得到光学中心12的位置，该位置即为光学中心12在当前测试系统中的位置。In detail, since the position of the optical center 12 is not convenient to be directly marked on the optical lens 8, in a feasible implementation, the present embodiment can obtain the position of the optical center 12 based on the real image obtained by shooting the optical lens 8 and the pre-set relative position relationship between the optical center 12 and the optical lens 8. This position is the position of the optical center 12 in the current test system.
在可行的实现方式中，该位置可以通过在各个设定坐标轴上的坐标值来表示。举例来说，该各个设定坐标轴可以为测试系统所在水平面上的两个坐标轴。比如，这两个坐标轴可以分别对应于图3中两个电机的移动方向，从而可通过图3所示的两个电机控制承载模组的移动，以将承载模块所承载的光学镜头8移动至所需位置。In a feasible implementation, the position can be represented by the coordinate values on each set coordinate axis. For example, each set coordinate axis can be two coordinate axes on the horizontal plane where the test system is located. For example, the two coordinate axes can correspond to the moving directions of the two motors in FIG. 3, respectively, so that the movement of the carrying module can be controlled by the two motors shown in FIG. 3 to move the optical lens 8 carried by the carrying module to the desired position.
在可行的实现方式中，可以在生产出设定镜片的情况下，通过偏心仪测量设定镜片的光学中心12与光学镜头8的相对位置关系。其中，该设定镜片的光学中心12可以作为光学镜头8的理想光学中心，基于此对光学镜头8作偏心测试。In a feasible implementation, when a set lens is produced, the relative position relationship between the optical center 12 of the set lens and the optical lens 8 can be measured by an eccentricity meter. The optical center 12 of the set lens can be used as the ideal optical center of the optical lens 8, based on which the eccentricity test of the optical lens 8 is performed.
基于此，本实施例中，所述测试模组2还用于根据所述第一位置控制所述承载模组移动至第二位置，使得所述设定镜片的光轴与相机的光轴重合。Based on this, in this embodiment, the test module 2 is also used to control the carrying module to move to the second position according to the first position, so that the optical axis of the set lens coincides with the optical axis of the camera.
详细地，在得到光学镜头8中设定镜片的光学中心12的第一位置后，即可控制承载模组的移动，使其移动至可使得设定镜片的光轴与虚像拍摄相机的光轴相重合的第二位置。Specifically, after obtaining the first position of the optical center 12 of the set lens in the optical lens 8, the movement of the carrying module can be controlled to move it to a second position where the optical axis of the set lens coincides with the optical axis of the virtual image shooting camera.
请参考图1，第二位置可以为图1中虚线对应的位置，在将承载模组移动至虚线所示位置后，即可利用图1中的右侧相机拍摄光学镜头8所成虚像。Please refer to FIG. 1 . The second position may be the position corresponding to the dotted line in FIG. 1 . After the carrying module is moved to the position indicated by the dotted line, the right camera in FIG. 1 may be used to shoot the virtual image formed by the optical lens 8 .
由于承载模组位于第二位置的情况下，用于拍摄虚像的相机的光轴与设定镜片的光轴相重合，则在两者共光轴情况下拍摄得到的虚像通常更能反映光学镜头8的偏心程度，有益于对其偏心数值的准确确定。Since the supporting module is located in the second position, the optical axis of the camera used to shoot the virtual image coincides with the optical axis of the set lens. The virtual image shot with the two sharing the same optical axis can usually better reflect the degree of eccentricity of the optical lens 8, which is beneficial to the accurate determination of its eccentricity value.
基于此，本实施例中，所述相机模组1还用于在所述承载模组位于所述第二位置的情况下，拍摄所述光学镜头8所成虚像。Based on this, in this embodiment, the camera module 1 is also used to photograph the virtual image formed by the optical lens 8 when the supporting module is located at the second position.
如上所述，在将承载模组移动至第二位置的情况下，即在虚像拍摄相机和设定镜片共光轴的情况下，可由虚像拍摄相机拍摄光学镜头8所成虚像。As described above, when the carrying module is moved to the second position, that is, when the virtual image capturing camera and the setting lens share a common optical axis, the virtual image formed by the optical lens 8 can be captured by the virtual image capturing camera.
举例来说，相机拍摄虚像的示意图可以如图5所示，该虚像可以如图5中最下端的虚线所示。图5中，该虚线可以为一个十字图卡虚像。请参考图5，光学镜头8可以相当于放大镜，使得该虚像为一个放大的虚像。For example, a schematic diagram of a camera shooting a virtual image may be shown in FIG5 , and the virtual image may be shown as the dotted line at the bottom of FIG5 . In FIG5 , the dotted line may be a cross-chart virtual image. Referring to FIG5 , the optical lens 8 may be equivalent to a magnifying glass, so that the virtual image is an enlarged virtual image.
基于上述内容，本实施例中，所述测试模组2还用于根据所述虚像获取所述光学镜头8的偏心数值。Based on the above content, in this embodiment, the test module 2 is also used to obtain the eccentricity value of the optical lens 8 according to the virtual image.
在拍摄得到上述虚像的情况下，测试模组2即可根据该虚像来确定光学镜头8的偏心数值。比如可以根据在无偏心误差或其他特定偏心误差下所能得到的相应预期虚像，结合当前得到的虚像，来确定光学镜头8的偏心数值。When the virtual image is obtained, the test module 2 can determine the eccentricity value of the optical lens 8 according to the virtual image. For example, the eccentricity value of the optical lens 8 can be determined according to the corresponding expected virtual image that can be obtained without eccentricity error or other specific eccentricity error, combined with the currently obtained virtual image.
可见，本实施例提供了一种光学镜头偏心测试系统，由承载模组承载光学镜头8；由相机模组拍摄光学镜头8得到光学镜头8的实像，并在承载模组位于第二位置的情况下拍摄光学镜头8所成虚像；由测试模组根据实像获取光学镜头8中设定镜片的光学中心的第一位置，再根据第一位置控制承载模组移动至第二位置使得设定镜片的光轴与相机的光轴重合，并根据虚像获取光学镜头8的偏心数值。本实施例提供的测试系统可以实现对光学镜头8的快速自动化偏心测试。It can be seen that this embodiment provides an optical lens eccentricity testing system, in which the optical lens 8 is carried by the carrying module; the optical lens 8 is photographed by the camera module to obtain a real image of the optical lens 8, and the virtual image formed by the optical lens 8 is photographed when the carrying module is located at the second position; the first position of the optical center of the set lens in the optical lens 8 is obtained by the testing module according to the real image, and then the carrying module is controlled to move to the second position according to the first position so that the optical axis of the set lens coincides with the optical axis of the camera, and the eccentricity value of the optical lens 8 is obtained according to the virtual image. The testing system provided by this embodiment can realize a fast and automated eccentricity test of the optical lens 8.
本实施例提供的光学镜头偏心测试系统，能够实现快速在线评价镜头偏心以评估镜头性能的目的，其至少在测量时间和自动化程度上均优于利用偏心仪的偏心测量方式，故而适用于生产测试阶段对光学镜头8的偏心测试，以保证产品质量。当然，该光学镜头偏心测试系统也适用于其他阶段的光学镜头8偏心测试。The optical lens eccentricity testing system provided in this embodiment can achieve the purpose of quickly evaluating the lens eccentricity online to evaluate the lens performance. It is superior to the eccentricity measurement method using an eccentricity meter at least in terms of measurement time and automation, so it is suitable for the eccentricity test of the optical lens 8 in the production test stage to ensure product quality. Of course, the optical lens eccentricity testing system is also suitable for the eccentricity test of the optical lens 8 in other stages.
在可行的实现方式中，相机模组1中的用于拍摄实像的相机和用于拍摄虚像的相机可以是不同的相机，也可以是同一相机。下面，分别对这两种情况进行说明。In a feasible implementation, the camera for photographing the real image and the camera for photographing the virtual image in the camera module 1 may be different cameras or the same camera. The following describes these two situations respectively.
详细地，对于实像拍摄相机和虚像拍摄相机为不同相机的情况：In detail, for the case where the real image capturing camera and the virtual image capturing camera are different cameras:
在本公开一个实施例中，请参考图1、图4及图5，所述相机模组1包括第一相机3和第二相机4。其中，所述第一相机3用于拍摄所述实像；所述第二相机4用于拍摄所述虚像。In one embodiment of the present disclosure, please refer to Figures 1, 4 and 5, the camera module 1 includes a first camera 3 and a second camera 4. The first camera 3 is used to capture the real image, and the second camera 4 is used to capture the virtual image.
本实施例中，第一相机3为实像拍摄相机，起定位识别作用。为能够拍摄光学镜头8的实像，第一相机3的设置位置使得第一相机3具有用于拍摄实像的聚焦距离，以支持相机能够准确拍摄到光学镜头8的实像。In this embodiment, the first camera 3 is a real image shooting camera, which plays a role in positioning and identification. In order to be able to shoot the real image of the optical lens 8, the setting position of the first camera 3 enables the first camera 3 to have a focusing distance for shooting the real image, so as to support the camera to accurately shoot the real image of the optical lens 8.
本实施例中，第二相机4为虚像拍摄相机，起测试作用。为能够拍摄光学镜头8所成虚像，第一相机3的设置位置使得第一相机3具有用于拍摄虚像的聚焦距离，以支持相机能够准确拍摄到光学镜头8所成虚像。In this embodiment, the second camera 4 is a virtual image shooting camera, which plays a testing role. In order to be able to shoot the virtual image formed by the optical lens 8, the first camera 3 is set at a position that allows the first camera 3 to have a focusing distance for shooting the virtual image, so as to support the camera to accurately shoot the virtual image formed by the optical lens 8.
本实施例中，使用两个相机分别作为实像拍摄相机和虚线拍摄相机，由于两个相机的作用固定，则两个相机的设置位置可以固定，仅需移动承载膜组的位置即可实现镜头偏心测试。In this embodiment, two cameras are used as a real image shooting camera and a dotted line shooting camera respectively. Since the functions of the two cameras are fixed, the setting positions of the two cameras can be fixed, and the lens eccentricity test can be achieved by only moving the position of the carrier film group.
本实施例提供的测试系统在测试镜头偏心时，采用两个相机来拍摄图像，具有定位精度高、计算时间短、操作流程简单的特点，适合于镜头实际生产中的偏心测试需求。The test system provided in this embodiment uses two cameras to capture images when testing lens eccentricity, and has the characteristics of high positioning accuracy, short calculation time, and simple operation process, and is suitable for the eccentricity test needs in actual lens production.
详细地，对于实像拍摄相机和虚像拍摄相机为同一相机的情况：In detail, for the case where the real image capturing camera and the virtual image capturing camera are the same camera:
在本公开一个实施例中，请参考图4及图5，所述相机模组1包括第一相机；In one embodiment of the present disclosure, please refer to FIG. 4 and FIG. 5 , the camera module 1 includes a first camera;
所述测试模组2，用于控制所述第一相机移动至第一设定位置，在所述第一相机位于所述第一设定位置的情况下，控制所述第一相机拍摄所述实像；控制所述第一相机移动至第二设定位置，在所述第一相机位于所述第二设定位置的情况下，控制所述第一相机拍摄所述虚像。The test module 2 is used to control the first camera to move to a first set position, and when the first camera is located at the first set position, control the first camera to capture the real image; and control the first camera to move to a second set position, and when the first camera is located at the second set position, control the first camera to capture the virtual image.
本实施例中，第一相机即为实像拍摄相机，起定位识别作用，也为虚像拍摄相机，起测试作用。即第一相机既用于实像拍摄目的，也用于虚像拍摄目的。In this embodiment, the first camera is a real image shooting camera, which plays a role in positioning and identification, and is also a virtual image shooting camera, which plays a role in testing. That is, the first camera is used for both real image shooting and virtual image shooting.
在可行的实现方式中，本实施例中的第一相机可以为如图1所示的第一相机3，且本实施例可以省略掉如图1所示的第二相机4，由第一相机3先后执行实像拍摄操作和虚像拍摄操作。In a feasible implementation, the first camera in this embodiment may be the first camera 3 as shown in FIG. 1 , and the second camera 4 as shown in FIG. 1 may be omitted in this embodiment, with the first camera 3 performing the real image capturing operation and the virtual image capturing operation in sequence.
本实施例中，由于拍摄实像和拍摄虚像所需的相机聚焦距离不同，故而可以通过调整相机位置的方式，通过一个相机依次完成实像拍摄和虚像拍摄的目的。In this embodiment, since the camera focusing distances required for photographing a real image and photographing a virtual image are different, the purpose of photographing a real image and photographing a virtual image can be accomplished sequentially by one camera by adjusting the camera position.
详细地，测试模组2可以根据设定的位置调制流程，将第一相机移动至用于拍摄实像的相应设定位置，使得第一相机此时具有用于拍摄实像的聚焦距离，以支持第一相机能够准确拍摄到光学镜头8的实像，之后再，将第一相机移动至用于拍摄虚像的相应设定位置，使得第一相机此时具有用于拍摄虚像的聚焦距离，以支持第一相机能够准确拍摄到光学镜头8所成虚像。In detail, the test module 2 can move the first camera to a corresponding set position for shooting a real image according to a set position modulation process, so that the first camera now has a focusing distance for shooting a real image, so as to support the first camera to accurately shoot the real image of the optical lens 8, and then move the first camera to a corresponding set position for shooting a virtual image, so that the first camera now has a focusing distance for shooting a virtual image, so as to support the first camera to accurately shoot the virtual image formed by the optical lens 8.
本实施例中，在一次偏心测试过程中，通过按需调整相机的位置，可使用一个相机依次作为实像拍摄相机和虚线拍摄相机，同时配合对承载膜组位置的移动，同样可以实现镜头偏心测试。In this embodiment, during an eccentricity test, by adjusting the position of the camera as needed, one camera can be used as a real image shooting camera and a dotted line shooting camera in turn, and the lens eccentricity test can also be achieved by moving the position of the carrier film group.
本实施例采用一个相机即可实现镜头偏心测试，故而可以省去因增加第二个相机所带来投入成本及所占用的空间位置，同时还可大大缩短承载膜组的移动距离。In this embodiment, one camera is used to implement the lens eccentricity test, thereby eliminating the investment cost and space occupied by adding a second camera, and also greatly shortening the moving distance of the carrier film group.
本实施例提供的测试系统在测试镜头偏心时，采用一个相机来拍摄图像，具有定位精度高、设备成本低、设备尺寸小的特点，适合于镜头实际生产中的偏心测试需求。The test system provided in this embodiment uses one camera to capture images when testing lens eccentricity, and has the characteristics of high positioning accuracy, low equipment cost, and small equipment size, and is suitable for the eccentricity test requirements in actual lens production.
在本公开一个实施例中，请参考图1及图4，所述测试模组2，用于根据所述实像获取所述光学镜头8的定位基准10的位置；根据所述定位基准10的位置、及设定的所述定位基准10与所述光学中心12间的相对位置关系，获取所述第一位置。In one embodiment of the present disclosure, please refer to Figures 1 and 4, the test module 2 is used to obtain the position of the positioning reference 10 of the optical lens 8 according to the real image; and obtain the first position according to the position of the positioning reference 10 and the set relative position relationship between the positioning reference 10 and the optical center 12.
上面提到，可以根据光学镜头8的实像来确定光学中心12的位置。在可行的实现方式中，可以在光学镜头8的表面设置定位基准，根据实像中定位基准10的位置，并结合定位基准10与光学中心12间预设的相对位置关系，来得到光学中心12的位置。As mentioned above, the position of the optical center 12 can be determined according to the real image of the optical lens 8. In a feasible implementation, a positioning reference can be set on the surface of the optical lens 8, and the position of the optical center 12 can be obtained according to the position of the positioning reference 10 in the real image and the preset relative position relationship between the positioning reference 10 and the optical center 12.
本实施例中，可以通过偏心仪预先测量定位基准10与光学中心12间的相对位置关系，该光学中心12可作为光学镜头8的理想光学中心。In this embodiment, the relative position relationship between the positioning reference 10 and the optical center 12 can be measured in advance by an eccentricity meter, and the optical center 12 can be used as the ideal optical center of the optical lens 8.
优选地，该定位基准10可以位于光学镜头8的镜片内径(如图4中虚线圆所示)和镜片外径(如图4中实线圆所示)之间的区域内。基于此不仅可以实现对光学镜头8的准确定位，且定位基准的存在还不会对光学镜头8的正常使用造成影响。Preferably, the positioning reference 10 can be located in the area between the inner diameter (as shown by the dotted circle in FIG. 4 ) and the outer diameter (as shown by the solid circle in FIG. 4 ) of the optical lens 8. Based on this, not only can the optical lens 8 be accurately positioned, but the presence of the positioning reference will not affect the normal use of the optical lens 8.
详细地，定位基准10的个数可以为一个，也可以为如图4所示的多个，定位基准10的形状可以为点，也可以为如图4所示的十字形，或者其他形状。In detail, the number of the positioning references 10 may be one or a plurality as shown in FIG. 4 , and the shape of the positioning references 10 may be a point, a cross as shown in FIG. 4 , or other shapes.
本实施例中，以图1所示测试系统为例，图1中左侧相机为定位识别相机，用于拍摄光学镜头8的实像，可拍摄到光学镜头8表面的定位基准(拍摄到的实像可以如图4所示)。进而根据拍摄到的定位基准可获取上述第一位置。In this embodiment, taking the test system shown in FIG. 1 as an example, the left camera in FIG. 1 is a positioning recognition camera, which is used to capture the real image of the optical lens 8 and can capture the positioning reference on the surface of the optical lens 8 (the captured real image can be shown in FIG. 4 ). Then, the first position can be obtained according to the captured positioning reference.
请参考图1所示的测试系统，计算机在控制实像拍摄相机拍摄光学镜头8的实像之后，计算机可识别到实像中光学镜头8上的各个定位基准10的位置，进而结合定位基准10和光学中心12间的相对位置关系，可以计算出光学中心12的位置并记录。Please refer to the test system shown in Figure 1. After the computer controls the real image shooting camera to shoot the real image of the optical lens 8, the computer can identify the position of each positioning reference 10 on the optical lens 8 in the real image, and then combine the relative position relationship between the positioning reference 10 and the optical center 12 to calculate and record the position of the optical center 12.
为提高测试精度，优选地，定位基准10的个数可以为至少三个，根据多个定位基准10的位置来确定光学中心12的位置。To improve the test accuracy, preferably, the number of the positioning references 10 may be at least three, and the position of the optical center 12 is determined according to the positions of the plurality of positioning references 10 .
基于此，在本公开一个实施例中，请参考图4，所述测试模组2，用于根据所述实像获取所述光学镜头8的至少三个定位基准10的位置，所述至少三个定位基准10的位置不在一条直线上；根据所述至少三个定位基准10的位置获取第一圆的圆心位置11，其中，所述至少三个定位基准10的位置分别位于所述第一圆上；根据所述圆心位置11、及所述圆心位置11与所述光学中心12间的相对位置关系，获取所述第一位置。Based on this, in one embodiment of the present disclosure, please refer to Figure 4, the test module 2 is used to obtain the positions of at least three positioning references 10 of the optical lens 8 according to the real image, and the positions of the at least three positioning references 10 are not on a straight line; obtain the center position 11 of the first circle according to the positions of the at least three positioning references 10, wherein the positions of the at least three positioning references 10 are respectively located on the first circle; obtain the first position according to the center position 11, and the relative position relationship between the center position 11 and the optical center 12.
如图4所示，光学镜头的表面设置有三个十字形定位基准，且这三个十字形定位基准不在一条直线上，如此，这三个十字形定位基准可以唯一确定一个圆，这个圆经过每一十字形定位基准的圆心位置。As shown in FIG4 , three cross-shaped positioning datums are arranged on the surface of the optical lens, and the three cross-shaped positioning datums are not on a straight line. Thus, the three cross-shaped positioning datums can uniquely determine a circle, and the circle passes through the center position of each cross-shaped positioning datum.
进而，可确定出圆心位置11，并根据圆心位置11与光学中心12间的相对位置关系，来计算得到光学中心12的位置。Furthermore, the center position 11 of the circle can be determined, and the position of the optical center 12 can be calculated based on the relative position relationship between the center position 11 and the optical center 12 .
在本公开一个实施例中，请参考图1，所述承载模组包括承载台5和压盖。其中，所述承载台5用于承载所述光学镜头8，所述压盖用于在所述承载台5承载有所述光学镜头8的情况下，压覆在所述光学镜头8的上方。In one embodiment of the present disclosure, please refer to FIG1 , the bearing module includes a bearing platform 5 and a pressure cover, wherein the bearing platform 5 is used to bear the optical lens 8, and the pressure cover is used to cover the optical lens 8 when the bearing platform 5 bears the optical lens 8.
本实施例中，样品承载台5用于承载样品(即光学镜头8)，承载台5可固定放置于电机模块之上。承载台5可具有较高的平行度、尺寸精度，确保光学镜头8这一待测样品放置在承载台5上时无倾斜、旋转等，减小测试误差。In this embodiment, the sample carrier 5 is used to carry the sample (i.e., the optical lens 8), and the carrier 5 can be fixedly placed on the motor module. The carrier 5 can have high parallelism and dimensional accuracy to ensure that the optical lens 8, the sample to be tested, is placed on the carrier 5 without tilting or rotating, etc., thereby reducing test errors.
本实施例中，在光学镜头8这一待测样品被放置在承载台5上以后，样品压盖可压覆在光学镜头8的上方，以起到固定光学镜头8的作用，确保在电机带动承载膜组及样品移动的过程中，光学镜头8相对于承载台5不会发生位置移动。In this embodiment, after the optical lens 8, the sample to be tested, is placed on the supporting platform 5, the sample cover can be pressed on top of the optical lens 8 to fix the optical lens 8, ensuring that the optical lens 8 will not move relative to the supporting platform 5 when the motor drives the supporting film group and the sample to move.
请参考图1所示测试系统，承载台5最初位于测试的起始位置，测试人员可将光学镜头8放置在承载台5上，然后将压盖压在光学镜头8的上方并固定，之后测试模组2可根据内容设定控制程序，自动化控制电机带动承载台移动，以将光学镜头8移动至实像拍摄相机的下方，从而可进行实像拍摄等后续操作。Please refer to the test system shown in Figure 1. The carrier 5 is initially located at the starting position of the test. The tester can place the optical lens 8 on the carrier 5, and then press the pressure cover on the top of the optical lens 8 and fix it. After that, the test module 2 can set the control program according to the content, and automatically control the motor to drive the carrier to move, so as to move the optical lens 8 to the bottom of the real image shooting camera, so that subsequent operations such as real image shooting can be performed.
基于上述内容，在本公开一个实施例中，请参考图1及图3，所述光学镜头偏心测试系统还包括第一电机6和第二电机7。Based on the above content, in one embodiment of the present disclosure, please refer to FIG. 1 and FIG. 3 , the optical lens eccentricity testing system further includes a first motor 6 and a second motor 7 .
其中，所述第一电机6用于驱动所述承载台5沿第一方向移动，所述第二电机7用于驱动所述承载台5沿第二方向移动，所述第一方向与所述第二方向相垂直。The first motor 6 is used to drive the carrying platform 5 to move along a first direction, and the second motor 7 is used to drive the carrying platform 5 to move along a second direction, and the first direction is perpendicular to the second direction.
本实施例中，测试系统还包括水平和垂直两个方向上的平移电机，移动方向如图3中箭头指向所示。如图3所示，对应垂直移动方向的电机用于驱动承载台5进行垂直方向上的运动，对应水平移动方向的电机用于驱动承载台5进行水平方向上的运动。如此，测试模组2可将光学镜头8按需移动至测试范围内的任一位置，从而可实现对任一光学镜头8的偏心测试。In this embodiment, the test system also includes translation motors in the horizontal and vertical directions, and the movement directions are shown by the arrows in Figure 3. As shown in Figure 3, the motor corresponding to the vertical movement direction is used to drive the carrier 5 to move in the vertical direction, and the motor corresponding to the horizontal movement direction is used to drive the carrier 5 to move in the horizontal direction. In this way, the test module 2 can move the optical lens 8 to any position within the test range as needed, so as to achieve the eccentricity test of any optical lens 8.
如此，测试模组可以通过这两个电机，对光学镜头8的位置进行按需改变，比如先将其从起始位置移动至实像拍摄相机下方以进行实像拍摄，再将其从实像拍摄相机下方移动至虚像拍摄相机下方以进行虚像拍摄，最后再将其移动至起始位置，以便于用户取下完成偏心测试的光学镜头8。In this way, the test module can use these two motors to change the position of the optical lens 8 as needed, such as first moving it from the starting position to under the real image shooting camera for real image shooting, then moving it from under the real image shooting camera to under the virtual image shooting camera for virtual image shooting, and finally moving it to the starting position to facilitate the user to remove the optical lens 8 that has completed the eccentricity test.
在本公开一个实施例中，所述光学镜头偏心测试系统还包括照明光源。如此，所述相机模组1用于在所述照明光源处于开状态且所述光学镜头8位于所述照明光源的光照范围内的情况下，拍摄所述实像。In one embodiment of the present disclosure, the optical lens eccentricity testing system further comprises an illumination light source. Thus, the camera module 1 is used to capture the real image when the illumination light source is on and the optical lens 8 is within the illumination range of the illumination light source.
本实施例中，照明光源用于照明光学镜头8表面，如此，实像拍摄相机可以基于照明光源提供的照明环境及效果，清晰的拍摄到光学镜头8的实像，比如可以清晰的拍摄到光学镜头8表面的定位基准10，提高根据定位基准10得到光学中心12位置的精准度。In this embodiment, the illumination light source is used to illuminate the surface of the optical lens 8. In this way, the real image capturing camera can clearly capture the real image of the optical lens 8 based on the lighting environment and effect provided by the illumination light source. For example, it can clearly capture the positioning reference 10 on the surface of the optical lens 8, thereby improving the accuracy of obtaining the position of the optical center 12 according to the positioning reference 10.
优选地，为进一步提高测试效果，照明光源可以为可见光环形光源。Preferably, in order to further improve the test effect, the illumination light source may be a visible light ring light source.
在本公开一个实施例中，请参考图1及图5，所述测试模组2，用于在所述承载模组位于所述第二位置的情况下，控制所述光学镜头8的屏幕9显示设定图卡。In one embodiment of the present disclosure, please refer to FIG. 1 and FIG. 5 , the test module 2 is used to control the screen 9 of the optical lens 8 to display a setting chart when the carrying module is located at the second position.
在可行的实现方式中，测试系统可以包括电路板，电路板用于驱动点亮光学镜头8的屏幕9。测试人员可以在将光学镜头8放置到承载模组上之后，间光学镜头8与电路板的接口进行连接，以便于电路板可按需点亮屏幕9。测试模组2可以通过电路板以控制屏幕9显示设定图卡。In a feasible implementation, the test system may include a circuit board, which is used to drive the screen 9 that lights up the optical lens 8. After placing the optical lens 8 on the carrier module, the tester can connect the optical lens 8 to the interface of the circuit board so that the circuit board can light up the screen 9 as needed. The test module 2 can control the screen 9 to display the setting chart through the circuit board.
在可行的实现方式中，该设定图卡可以为十字形图卡，以便于可根据十字形图卡的中心位置来确定镜头偏心程度。In a feasible implementation, the setting chart may be a cross-shaped chart, so that the degree of lens eccentricity can be determined according to the center position of the cross-shaped chart.
基于此，本实施例中，所述相机模组1，用于在所述承载模组位于所述第二位置的情况下，拍摄所述光学镜头8所成的对应所述图卡的虚像。Based on this, in this embodiment, the camera module 1 is used to capture the virtual image corresponding to the picture card formed by the optical lens 8 when the supporting module is located at the second position.
本实施例中，在虚像拍摄相机的光轴与光学镜头8的设定镜片的光轴相重合的情况下，由虚像拍摄相机拍摄屏幕8显示的图卡通过光学镜头8所成的虚像。In this embodiment, when the optical axis of the virtual image shooting camera coincides with the optical axis of the set lens of the optical lens 8 , the virtual image shooting camera shoots the virtual image of the picture card displayed on the screen 8 through the optical lens 8 .
基于上述内容，在本公开一个实施例中，请参考图5，所述设定图卡包括十字图卡。所述测试模组用于根据所述虚像中所述十字图卡的中心的位置，获取所述光学镜头8的偏心数值。Based on the above content, in one embodiment of the present disclosure, please refer to Figure 5, the setting chart includes a cross chart. The test module is used to obtain the eccentricity value of the optical lens 8 according to the position of the center of the cross chart in the virtual image.
本实施例中，测试模组2可以按照要求写入十字图卡，在需要拍摄虚像的情况下，可以控制电路板以使其点亮光学镜头8的屏幕9，且向接收电源后的屏幕9输出待显示的十字图卡，以在屏幕9上显示十字图卡。In this embodiment, the test module 2 can write the cross chart as required. When a virtual image needs to be captured, the circuit board can be controlled to light up the screen 9 of the optical lens 8 and output the cross chart to be displayed to the screen 9 after receiving power, so as to display the cross chart on the screen 9.
请参考图5，在屏幕9显示十字图卡之后，基于光学透镜8的放大功能，屏幕9上显示的十字图卡通过光学镜头8能够成一个放大的虚像，该虚像可被虚像拍摄相机所拍摄到，拍摄到的虚像可以如图5中所示的十字图卡虚像所示。Please refer to Figure 5. After the cross chart is displayed on the screen 9, based on the magnification function of the optical lens 8, the cross chart displayed on the screen 9 can form an enlarged virtual image through the optical lens 8. The virtual image can be captured by the virtual image shooting camera. The captured virtual image can be shown as the cross chart virtual image shown in Figure 5.
如图5所示，虚像拍摄相机可以拍摄到十字图卡通过光学镜头8后所成的放大虚像，该放大虚像为十字图卡的放大虚像，测试模组3可通过计算以得到虚像中十字图卡中心位置，进而得到该位置与虚像拍摄相机中心的偏差，该偏差即可以为光学镜头8的偏心数值。As shown in FIG5 , the virtual image capturing camera can capture the magnified virtual image of the cross chart after passing through the optical lens 8. The magnified virtual image is the magnified virtual image of the cross chart. The test module 3 can obtain the center position of the cross chart in the virtual image through calculation, and then obtain the deviation between the position and the center of the virtual image capturing camera. The deviation can be the eccentricity value of the optical lens 8.
基于上述内容，本实施例一个实施例中，请参考图1～图5，光学镜头偏心测试系统可以包括计算机、第一相机3、第二相机4、承载台5、压盖、第一电机6、第二电机7、电路板、照明光源。该测试系统用于测试光学镜头8的偏心数值。光学镜头8具有屏幕9，光学镜头8的设定镜片上设置有三个定位基准10。Based on the above content, in one embodiment of the present embodiment, please refer to Figures 1 to 5, the optical lens eccentricity test system may include a computer, a first camera 3, a second camera 4, a carrier 5, a pressure cover, a first motor 6, a second motor 7, a circuit board, and an illumination light source. The test system is used to test the eccentricity value of the optical lens 8. The optical lens 8 has a screen 9, and three positioning references 10 are set on the setting lens of the optical lens 8.
利用本实施例提供的测试系统进行偏心测试的实现过程，可以如下述1)～8)所示：The implementation process of the eccentricity test using the test system provided in this embodiment can be as shown in 1) to 8) below:
1)、将光学镜头8放置在承载台5上，将电路板的接口与光学镜头8相连接，然后将压盖压在光学镜头8上方并固定。此时，承载台5位于测试的起始位置，第一电机6和第二电机7均已复位于相应起始位置。1) Place the optical lens 8 on the carrier 5, connect the interface of the circuit board to the optical lens 8, and then press the pressure cover on the optical lens 8 and fix it. At this time, the carrier 5 is at the starting position of the test, and the first motor 6 and the second motor 7 have both been reset to the corresponding starting positions.
2)、计算机控制第二电机7驱动承载台5沿垂直方向移动，以将光学镜头8移动至第一相机3的下方，然后控制照明光源开启。2) The computer controls the second motor 7 to drive the carrier 5 to move in the vertical direction to move the optical lens 8 to below the first camera 3, and then controls the illumination light source to turn on.
3)、第一相机3在光照环境中拍摄光学镜头8的实像，计算机获取该实像。3) The first camera 3 captures a real image of the optical lens 8 in a lighting environment, and the computer acquires the real image.
4)、计算机确定实像中光学镜头8的设定镜片上三个定位基准10的位置，然后根据这三个位置确定相应圆的圆心位置11。进而，根据圆心位置11与设定镜片的光学中心12的相对位置关系，并结合圆心位置11，确定光学中心12的位置。4) The computer determines the positions of three positioning references 10 on the set lens of the optical lens 8 in the real image, and then determines the center position 11 of the corresponding circle according to these three positions. Furthermore, according to the relative position relationship between the center position 11 and the optical center 12 of the set lens, and in combination with the center position 11, the position of the optical center 12 is determined.
5)、计算机根据光学中心12的位置控制第一电机6和第二电机7，以通过两个电机驱动承载台5沿水平和/或垂直方向移动，将光学镜头8移动至第二相机4下方的特定位置，使得设定镜片的光轴与第二相机4的光轴重合。5) The computer controls the first motor 6 and the second motor 7 according to the position of the optical center 12, so as to drive the supporting platform 5 to move horizontally and/or vertically through the two motors, and move the optical lens 8 to a specific position below the second camera 4, so that the optical axis of the lens is set to coincide with the optical axis of the second camera 4.
6)、计算机通过电路板点亮光学镜头8的屏幕9，控制屏幕9显示十字图卡，第二相机4拍摄十字图卡通过光学镜头8所成的放大虚像。6) The computer lights up the screen 9 of the optical lens 8 through the circuit board, controls the screen 9 to display the cross chart, and the second camera 4 captures the magnified virtual image of the cross chart formed by the optical lens 8.
7)、计算机根据放大虚像计算虚像中十字图卡的中心位置，得到其与第二相机4中心的偏差，作为光学镜头8的偏光数值。7) The computer calculates the center position of the cross chart in the virtual image according to the magnified virtual image, and obtains the deviation between the center position of the cross chart and the center of the second camera 4 as the polarization value of the optical lens 8.
8)、计算机控制第一电机6和第二电机7，以通过两个电机驱动承载台5复位至测试的起始位置。之后测试人员可取下光学镜头8，从而完成对光学镜头8的偏心测试。8) The computer controls the first motor 6 and the second motor 7 to drive the support platform 5 to reset to the starting position of the test through the two motors. After that, the tester can remove the optical lens 8, thereby completing the eccentricity test of the optical lens 8.
基于上述内容，如图6所示，本公开实施例还提供了一种光学镜头偏心测试方法，应用于本公开任一实施例所述的光学镜头偏心测试系统，所述方法可以包括以下步骤S610～步骤S660：Based on the above content, as shown in FIG6 , the embodiment of the present disclosure further provides an optical lens eccentricity testing method, which is applied to the optical lens eccentricity testing system described in any embodiment of the present disclosure. The method may include the following steps S610 to S660:
步骤S610，所述承载模组承载所述光学镜头。Step S610: the carrying module carries the optical lens.
步骤S620，所述相机模组1拍摄所述光学镜头得到所述光学镜头的实像。Step S620: the camera module 1 photographs the optical lens to obtain a real image of the optical lens.
步骤S630，所述测试模组2根据所述实像获取所述光学镜头中设定镜片的光学中心的第一位置。Step S630: the testing module 2 obtains a first position of an optical center of a set lens in the optical lens according to the real image.
步骤S640，所述测试模组2根据所述第一位置控制所述承载模组移动至所述第二位置，使得所述设定镜片的光轴与相机的光轴重合。Step S640: the test module 2 controls the carrying module to move to the second position according to the first position, so that the optical axis of the set lens coincides with the optical axis of the camera.
步骤S650，所述相机模组1在所述承载模组位于第二位置的情况下，拍摄所述光学镜头所成虚像。Step S650: When the supporting module is located at the second position, the camera module 1 photographs the virtual image formed by the optical lens.
步骤S660，所述测试模组2根据所述虚像获取所述光学镜头的偏心数值。Step S660: the testing module 2 obtains the eccentricity value of the optical lens according to the virtual image.
本实施例的具体实现过程可参考上述系统实施例的相关技术描述，本实施例在此不作赘述。The specific implementation process of this embodiment can refer to the relevant technical description of the above-mentioned system embodiment, and this embodiment will not be described in detail here.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
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| CN202110837076.XACN113701997B (en) | 2021-07-23 | 2021-07-23 | Optical lens eccentricity testing system and method |
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| CN202110837076.XACN113701997B (en) | 2021-07-23 | 2021-07-23 | Optical lens eccentricity testing system and method |
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| CN113701997A CN113701997A (en) | 2021-11-26 |
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| CN202110837076.XAActiveCN113701997B (en) | 2021-07-23 | 2021-07-23 | Optical lens eccentricity testing system and method |
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