技术领域technical field
本申请涉及光学成像技术领域，特别涉及一种离轴折反式摄像头和电子装置。The present application relates to the technical field of optical imaging, and in particular, to an off-axis catadioptric camera and an electronic device.
背景技术Background technique
随着技术的发展，人们对手机摄像质量要求越来越高，并且在摄像质量的基础上追求手机轻薄化便于携带。由于镜头的总长度与镜头焦距成正比，因此，当镜头焦距增大时，必然会使得镜头总长度增加，而镜头总长度增加会使得整个手机的机身变厚，不利于手机轻薄化。With the development of technology, people have higher and higher requirements on the camera quality of mobile phones, and on the basis of camera quality, they pursue the lightness and thinness of mobile phones and are easy to carry. Since the total length of the lens is proportional to the focal length of the lens, when the focal length of the lens increases, the total length of the lens will inevitably increase, and the increase in the total length of the lens will make the entire body of the mobile phone thicker, which is not conducive to the thinning of the mobile phone.
发明内容SUMMARY OF THE INVENTION
本申请实施方式提供一种离轴折反式摄像头和电子装置。Embodiments of the present application provide an off-axis catadioptric camera and an electronic device.
本申请实施方式提供一种离轴折反式摄像头，所述离轴折反式摄像头包括第一反射镜、第二反射镜、镜头模组和成像探测器，入射光线沿第一光路入射至所述第一反射镜并被所述第一反射镜反射，被所述第一反射镜反射后的入射光线沿第二光路入射至所述第二反射镜并被所述第二反射镜反射，被所述第二反射镜反射后的入射光线沿第三光路入射至所述镜头模组，所述镜头模组用于将沿所述第三光路入射的入射光线汇聚至所述成像探测器，所述成像探测器用于将汇聚的光线转换为电信号以成像；其中，所述第一光路、所述第二光路和所述第三光路不重合。Embodiments of the present application provide an off-axis catadioptric camera, the off-axis catadioptric camera includes a first reflector, a second reflector, a lens module, and an imaging detector, and incident light enters the camera along a first optical path. The first reflector is reflected by the first reflector, and the incident light reflected by the first reflector enters the second reflector along the second optical path, is reflected by the second reflector, and is reflected by the second reflector. The incident light reflected by the second reflecting mirror is incident on the lens module along the third optical path, and the lens module is used for converging the incident light incident along the third optical path to the imaging detector. The imaging detector is used for converting the converged light into electrical signals for imaging; wherein, the first optical path, the second optical path and the third optical path do not overlap.
在某些实施方式中，所述第一光路、所述第二光路和所述第三光路组合形成Z型光路。In some embodiments, the first optical path, the second optical path and the third optical path combine to form a Z-shaped optical path.
在某些实施方式中，所述第二反射镜位于所述第一反射镜的物侧。In certain embodiments, the second mirror is located on the object side of the first mirror.
在某些实施方式中，所述第一反射镜包括相背的第一物侧面和第一像侧面，所述第二反射镜包括相背的第二物侧面和第二像侧面，所述第一物侧面与所述第二像侧面相对，所述第一物侧面用于反射入射光线，所述第二像侧面用于反射被所述第一物侧面反射后的入射光线。In some embodiments, the first mirror includes a first object side and a first image side that are opposite to each other, the second mirror includes a second object side and a second image side that are opposite to each other, and the first An object side is opposite to the second image side, the first object side is used to reflect incident light, and the second image side is used to reflect incident light reflected by the first object side.
在某些实施方式中，所述第一物侧面为抛物面、球面、椭球面或双曲面中的任意一种；和/或所述第二像侧面为抛物面、球面、椭球面或双曲面中的任意一种。In certain embodiments, the first object side is any one of a paraboloid, a sphere, an ellipsoid or a hyperboloid; and/or the second image side is a paraboloid, a sphere, an ellipsoid or a hyperboloid. any kind.
在某些实施方式中，所述第一物侧面为凹面，所述第二像侧面为凸面。In certain embodiments, the first object side is concave and the second image side is convex.
在某些实施方式中，所述第一反射镜和所述第二反射镜用于改变所述离轴折反式摄像头的焦距。In some embodiments, the first mirror and the second mirror are used to change the focal length of the off-axis catadioptric camera.
在某些实施方式中，所述离轴折反式摄像头满足条件式：K＝f1/f2，D＝|f1-f2|，其中，K为所述离轴折反式摄像头的焦距改变倍数，f1为所述第一反射镜的焦距，f2为所述第二反射镜的焦距，D为第一反射镜原型与第二反射镜原型的两个相对抛物面的中心之间的直线距离，其中，所述第一反射镜原型为所述第一反射镜切割之前具有完整的抛物面的反射镜，所述第二反射镜原型为所述第二反射镜切割之前具有完整的抛物面的反射镜。In some embodiments, the off-axis catadioptric camera satisfies the conditional formula: K=f1/f2, D=|f1-f2|, where K is the change factor of the focal length of the off-axis catadioptric camera, f1 is the focal length of the first reflector, f2 is the focal length of the second reflector, and D is the straight-line distance between the centers of the two opposite paraboloids of the first reflector prototype and the second reflector prototype, wherein, The first mirror prototype is a mirror with a complete paraboloid before the first mirror is cut, and the second mirror prototype is a mirror with a complete paraboloid before the second mirror is cut.
在某些实施方式中，所述镜头模组从物侧至像侧包括第一透镜、第二透镜、第三透镜和第四透镜，所述第一透镜的物侧面为凸面，所述第一透镜的像侧面为凸面；所述第二透镜的物侧面为凹面，所述第二透镜的像侧面为凹面；所述第三透镜的物侧面为凹面，所述第三透镜的像侧面为凸面；所述第四透镜的物侧面为凸面，所述第四透镜的像侧面为凹面。In some embodiments, the lens module includes a first lens, a second lens, a third lens and a fourth lens from the object side to the image side, the object side of the first lens is convex, and the first lens is convex. The image side of the lens is convex; the object side of the second lens is concave, the image side of the second lens is concave; the object side of the third lens is concave, and the image side of the third lens is convex ; The object side of the fourth lens is convex, and the image side of the fourth lens is concave.
本申请实施方式还提供一种电子装置，所述电子装置包括壳体和上述任一实施方式的离轴折反式摄像头，所述离轴折反式摄像头与所述壳体结合。An embodiment of the present application further provides an electronic device, the electronic device includes a casing and the off-axis catadioptric camera of any of the above embodiments, the off-axis catadioptric camera is combined with the casing.
本申请实施方式的离轴折反式摄像头和电子装置通过第一反射镜和第二反射镜反射入射光线，实现了对光路的折叠，离轴折反式摄像头的总长变小，有利于实现电子装置轻薄化。此外，第一光路、第二光路和第三光路不重合，使得离轴折反式摄像头避免产生中心遮拦现象，导致成像不清晰的问题，提高了成像质量。The off-axis catadioptric camera and the electronic device according to the embodiment of the present application reflect incident light through the first reflector and the second reflector, so as to realize the folding of the optical path, and the overall length of the off-axis catadioptric camera is reduced, which is conducive to the realization of electronic The device is thin and light. In addition, the first optical path, the second optical path and the third optical path do not overlap, so that the off-axis catadioptric camera avoids the central occlusion phenomenon, which leads to the problem of unclear imaging, and improves the imaging quality.
本申请实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。Additional aspects and advantages of embodiments of the present application will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of the present application.
附图说明Description of drawings
本申请的上述和/或附加的方面和优点可以从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:
图1是本申请某些实施方式的电子装置的一个状态的立体结构示意图；FIG. 1 is a schematic three-dimensional structural diagram of an electronic device according to some embodiments of the present application in one state;
图2是本申请某些实施方式的电子装置的另一个状态的立体结构示意图；2 is a schematic three-dimensional structural diagram of another state of the electronic device according to some embodiments of the present application;
图3是本申请某些实施方式的离轴折反式摄像头的结构示意图；3 is a schematic structural diagram of an off-axis catadioptric camera according to some embodiments of the present application;
图4是本申请某些实施方式的离轴折反式摄像头的平面光路示意图；4 is a schematic diagram of a plane light path of an off-axis catadioptric camera according to some embodiments of the present application;
图5是本申请某些实施方式的离轴折反式摄像头的立体光路示意图；5 is a schematic diagram of a stereo optical path of an off-axis catadioptric camera according to some embodiments of the present application;
图6是共轴式摄像头的平面光路示意图；FIG. 6 is a schematic diagram of a plane light path of a coaxial camera;
图7是图4所示的离轴折反式摄像头中第一反射镜与第二反射镜在未切割时的平面光路示意图；7 is a schematic view of the plane light path of the first reflector and the second reflector in the off-axis catadioptric camera shown in FIG. 4 when they are not cut;
图8是本申请某些实施方式的镜头模组的结构示意图。FIG. 8 is a schematic structural diagram of a lens module according to some embodiments of the present application.
具体实施方式Detailed ways
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中，相同或类似的标号自始至终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方式是示例性的，仅用于解释本申请的实施方式，而不能理解为对本申请的实施方式的限制。Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the embodiments of the present application, and should not be construed as limitations on the embodiments of the present application.
请一并参阅图1和图2，本申请实施方式的电子装置1000包括壳体200和离轴折反式摄像头100。电子装置1000可以是手机、平板电脑、笔记本电脑、游戏机、智能手表、智能手环、头显设备、无人机、数字相机(Digital Still Camera，DSC)、数字摄录像机(DigitalVideo Camcorder，DVC)、行车记录器等监视设备以及其它具备照相机或摄录像机等电子设备。本申请实施方式以电子装置1000是手机为例进行说明，可以理解，电子装置1000的具体形式不限于手机。Please refer to FIG. 1 and FIG. 2 together. An electronic device 1000 according to an embodiment of the present application includes a housing 200 and an off-axis foldable camera 100 . The electronic device 1000 may be a mobile phone, a tablet computer, a notebook computer, a game console, a smart watch, a smart bracelet, a head-mounted display device, a drone, a digital still camera (DSC), a digital video camcorder (DVC) , driving recorders and other surveillance equipment and other electronic equipment with cameras or camcorders. The embodiments of the present application are described by taking the electronic device 1000 as a mobile phone as an example. It can be understood that the specific form of the electronic device 1000 is not limited to a mobile phone.
壳体200可以作为电子装置1000的功能元件的安装载体。壳体200可以为功能元件提供防尘、防摔、防水等保护，功能元件可以是显示屏202、处理芯片208、受话器等。在本申请实施例中，壳体200包括主体204及可动支架206，可动支架206在驱动装置的驱动下可以相对于主体204运动，例如可动支架206可以相对于主体204滑动，以滑入主体204(如图1所示)或从主体204滑出(如图2所示)。部分功能元件(例如显示屏202)可以安装在主体204上，另一部分功能元件(例如离轴折反式摄像头100、受话器)可以安装在可动支架206上，可动支架206运动可带动该另一部分功能元件缩回主体204内或从主体204中伸出。当然，图1和图2所示仅是对壳体200的一种具体形式举例，不能理解为对本申请的壳体200的限制。The housing 200 may serve as a mounting carrier for the functional elements of the electronic device 1000 . The casing 200 may provide protection against dust, drop, and water for the functional elements, and the functional elements may be the display screen 202 , the processing chip 208 , the receiver, and the like. In the embodiment of the present application, the housing 200 includes a main body 204 and a movable bracket 206. The movable bracket 206 can move relative to the main body 204 under the driving of the driving device. For example, the movable bracket 206 can slide relative to the main body 204 to slide into the body 204 (as shown in FIG. 1 ) or slide out from the body 204 (as shown in FIG. 2 ). Some functional elements (such as the display screen 202) can be installed on the main body 204, and another part of the functional elements (such as the off-axis folding camera 100, the receiver) can be installed on the movable bracket 206, and the movement of the movable bracket 206 can drive the other part. A portion of the functional elements are retracted into the body 204 or protrude from the body 204 . Of course, what is shown in FIG. 1 and FIG. 2 is only an example of a specific form of the casing 200 , and should not be construed as a limitation on the casing 200 of the present application.
离轴折反式摄像头100安装在壳体200上。具体地，离轴折反式摄像头100安装在可动支架206上。用户在需要使用离轴折反式摄像头100时，可以触发可动支架206从主体204中滑出以带动离轴折反式摄像头100从主体204中伸出；在不需要使用离轴折反式摄像头100时，可以触发可动支架206滑入主体204以带动离轴折反式摄像头100缩回主体204中。在其他实施方式中，壳体200上可以开设有通光孔，离轴折反式摄像头100不可移动地设置在壳体200内并与通光孔对应，以采集图像信息；或者，显示屏202可以开设有通光孔，离轴折反式摄像头100设置在显示屏202的下方并与通光孔对应，以采集图像信息。The off-axis folding camera 100 is mounted on the housing 200 . Specifically, the off-axis flip camera 100 is mounted on the movable bracket 206 . When the user needs to use the off-axis foldable camera 100, the user can trigger the movable bracket 206 to slide out from the main body 204 to drive the off-axis foldable camera 100 to protrude from the main body 204; When the camera 100 is installed, the movable bracket 206 can be triggered to slide into the main body 204 to drive the off-axis folding camera 100 to retract into the main body 204 . In other embodiments, a light-passing hole may be opened on the casing 200, and the off-axis catadioptric camera 100 is immovably disposed in the casing 200 and corresponds to the light-passing hole, so as to collect image information; or, the display screen 202 A light-passing hole may be opened, and the off-axis catadioptric camera 100 is disposed below the display screen 202 and corresponds to the light-passing hole to collect image information.
请参阅图3，离轴折反式摄像头100包括第一反射镜10、第二反射镜20、镜头模组30和成像探测器40。Referring to FIG. 3 , the off-axis catadioptric camera 100 includes a first reflecting mirror 10 , a second reflecting mirror 20 , a lens module 30 and an imaging detector 40 .
请结合图4，入射光线沿第一光路111入射至第一反射镜10并被第一反射镜10反射，被第一反射镜10反射后的入射光线沿第二光路112入射至第二反射镜20并被第二反射镜20反射，被第二反射镜20反射后的入射光线沿第三光路113入射至镜头模组30。镜头模组30用于将沿第三光路113入射的入射光线汇聚至成像探测器40。成像探测器40用于将汇聚的光线转换为电信号以成像。其中，请结合图5，以图中任意点作为原点O，以平行于镜头模组30的光轴的方向为X轴，以垂直X轴的两个轴为Y及Z轴建立坐标系，第一反射镜10在YZ平面内的投影与第二反射镜20在YZ平面内的投影有错位，镜头模组30和成像探测器40在YZ平面内的投影与第一反射镜10在YZ平面内的投影也有错位。第一光路111、第二光路112和第三光路113不重合。第一光路111、第二光路112和第三光路113可组合形成Z型光路。也即是，后文提及的中心对称轴4、中心对称轴5、及中心对称轴6在XY平面内的投影后相交形成Z字形。Please refer to FIG. 4 , the incident light enters the first reflecting mirror 10 along the first optical path 111 and is reflected by the first reflecting mirror 10 , and the incident light after being reflected by the first reflecting mirror 10 enters the second reflecting mirror along the second optical path 112 20 and is reflected by the second reflector 20 , and the incident light reflected by the second reflector 20 enters the lens module 30 along the third optical path 113 . The lens module 30 is used for converging the incident light incident along the third optical path 113 to the imaging detector 40 . The imaging detector 40 is used to convert the concentrated light into electrical signals for imaging. 5, take any point in the figure as the origin O, take the direction parallel to the optical axis of the lens module 30 as the X axis, and take the two axes perpendicular to the X axis as the Y and Z axes to establish a coordinate system. The projection of a reflector 10 on the YZ plane is misaligned with the projection of the second reflector 20 on the YZ plane, and the projection of the lens module 30 and the imaging detector 40 on the YZ plane is different from that of the first reflector 10 on the YZ plane The projection is also misplaced. The first optical path 111 , the second optical path 112 and the third optical path 113 do not overlap. The first optical path 111 , the second optical path 112 and the third optical path 113 may be combined to form a Z-shaped optical path. That is, the central symmetry axis 4 , the central symmetry axis 5 , and the central symmetry axis 6 mentioned later intersect to form a zigzag shape after being projected in the XY plane.
第一反射镜10和第二反射镜20构成离轴折反式摄像头100的反射部分，其中，第一反射镜10的直径可大于第二反射镜20的直径，使外界的入射光线能够被第一反射镜10更全面地反射。镜头模组30和成像探测器40构成离轴折反式摄像头100的折射部分。离轴折反式摄像头100通过反射部分实现对光路的折叠，并可以放大或缩小离轴折反式摄像头100的焦距，从而实现离轴折反式摄像头100总长度变短，相对未设置有第一反射镜与第二反射镜时的离轴折反式摄像头，设置有第一反射镜10与第二反射镜20时的离轴折反式摄像头100的焦距呈倍数放大或缩小，使得离轴折反式摄像头100小型化，安装方便，并且可以满足更多的拍摄场景需求。The first reflecting mirror 10 and the second reflecting mirror 20 constitute the reflection part of the off-axis catadioptric camera 100, wherein the diameter of the first reflecting mirror 10 may be larger than the diameter of the second reflecting mirror 20, so that the incident light from the outside can be reflected by the first reflecting mirror 10. A mirror 10 reflects more generally. The lens module 30 and the imaging detector 40 constitute the refracting part of the off-axis catadioptric camera 100 . The off-axis catadioptric camera 100 realizes the folding of the optical path through the reflection part, and can enlarge or reduce the focal length of the off-axis catadioptric camera 100, so as to realize the shortening of the overall length of the off-axis catadioptric camera 100, and is relatively not provided with a first focal length. An off-axis catadioptric camera with a reflector and a second reflector, the focal length of the off-axis catadioptric camera 100 when the first reflector 10 and the second reflector 20 are provided is multiplied or reduced, so that the off-axis The folding camera 100 is miniaturized, easy to install, and can meet the needs of more shooting scenes.
请参阅图4和图5，入射光线依次入射至第一反射镜10、第二反射镜20和镜头模组30并分别形成第一光路111、第二光路112和第三光路113。具体地，入射光线入射至第一反射镜10构成第一光路111，从第一反射镜10反射的光线入射至第二反射镜20形成第二光路112，从第二反射镜20反射的光线入射至镜头模组30形成第三光路113。三条光路不重合且构成Z型布局，使得离轴折反式摄像头100能有效避免共轴方式(如图6所示)造成的光线的中心遮拦现象。具体地，请参阅图6，中心遮拦现象即为入射光线在入射至第一反射镜10时，入射光线的中间部分光线被第二反射镜20遮挡，此时只有入射光线的两侧部分光线会到达第一反射镜10，而入射到第一反射镜10的光线中心部分缺失，即为中心遮拦现象。其中，共轴是指入射光线入射至第一反射镜10形成的第一光路的中心对称轴1、入射光线经第一反射镜10反射至第二反射镜20形成的第二光路的中心对称轴2和经第二反射镜20反射后射入镜头模组30形成的第三光路的中心对称轴3，三个中心对称轴是重合的，即中心对称轴1、中心对称轴2和中心对称轴3是重合的。而本申请实施方式通过将第一反射镜10、第二反射镜20设置为离轴的方式(如图4和图5所示)，请参阅图4，离轴是指入射光线入射至第一反射镜10形成的第一光路111的中心对称轴4、入射光线经第一反射镜10反射至第二反射镜20形成的第二光路112的中心对称轴5和经第二反射镜20反射后射入镜头模组30形成的第三光路113的中心对称轴6，三个中心对称轴是不重合的，即中心对称轴4、中心对称轴5和中心对称轴6是不重合的。第一光路111、第二光路112和第三光路113不重合，第一反射镜10和第二反射镜20不在同一个平面上(如前文所述的错位设置)，可以有效避免共轴方式造成的光线的中心遮拦现象，离轴折反式摄像头100的成像质量好。Referring to FIGS. 4 and 5 , the incident light enters the first reflector 10 , the second reflector 20 and the lens module 30 in sequence to form a first optical path 111 , a second optical path 112 and a third optical path 113 respectively. Specifically, the incident light enters the first reflecting mirror 10 to form a first optical path 111 , the light reflected from the first reflecting mirror 10 enters the second reflecting mirror 20 to form a second optical path 112 , and the light reflected from the second reflecting mirror 20 enters A third optical path 113 is formed to the lens module 30 . The three optical paths do not overlap and form a Z-shaped layout, so that the off-axis catadioptric camera 100 can effectively avoid the central occlusion of light caused by the coaxial method (as shown in FIG. 6 ). Specifically, referring to FIG. 6 , the central blocking phenomenon is that when the incident light is incident on the first reflecting mirror 10, the middle part of the incident light is blocked by the second reflecting mirror 20, and only the light on both sides of the incident light will be blocked by the second reflecting mirror 20. When reaching the first reflecting mirror 10, the central part of the light incident on the first reflecting mirror 10 is missing, which is the phenomenon of central occlusion. Among them, coaxial refers to the central symmetry axis 1 of the first optical path formed by the incident light incident on the first reflecting mirror 10 , and the central symmetry axis of the second optical path formed by the incident light being reflected by the first reflecting mirror 10 to the second reflecting mirror 20 . 2 and the central symmetry axis 3 of the third optical path formed by the lens module 30 after being reflected by the second reflector 20, the three central symmetry axes are coincident, namely the central symmetry axis 1, the central symmetry axis 2 and the central symmetry axis 3 is coincident. However, in the embodiment of the present application, the first reflector 10 and the second reflector 20 are set off-axis (as shown in FIG. 4 and FIG. 5 ). Please refer to FIG. 4 . Off-axis refers to the incident light entering the first reflector. The central axis of symmetry 4 of the first optical path 111 formed by the reflector 10 , the central axis of symmetry 5 of the second optical path 112 formed by the incident light reflected by the first reflector 10 to the second reflector 20 , and after being reflected by the second reflector 20 The three central symmetry axes 6 of the third optical path 113 formed by the incident lens module 30 are not coincident, that is, the central symmetry axis 4 , the central symmetry axis 5 and the central symmetry axis 6 are not coincident. The first optical path 111 , the second optical path 112 and the third optical path 113 do not overlap, and the first reflecting mirror 10 and the second reflecting mirror 20 are not on the same plane (dislocation arrangement as described above), which can effectively avoid the coaxial method. Due to the central occlusion phenomenon of light rays, the image quality of the off-axis catadioptric camera 100 is good.
第一反射镜10和第二反射镜20用于放大或缩小离轴折反式摄像头100的焦距(相对未设置有第一反射镜与第二反射镜时的摄像头，全文都适用)。具体地，离轴折反式摄像头100满足条件式：K＝f1/f2，D＝|f1-f2|。其中，K为镜头模组30的焦距改变倍数，f1为第一反射镜10的焦距，f2为第二反射镜20的焦距，D为第一反射镜原型10a与第二反射镜原型20a的两个相对抛物面的中心之间的直线距离(如图7所示)，具体地，请参阅图4和图7，图7表示的是图4所示的离轴折反式摄像头100中第一反射镜10切割前的第一反射镜原型10a和第二反射镜20切割前的第二反射镜原型20a，第一反射镜原型10a与第二反射镜原型20a为具有两个完整的抛物面的反射镜，即图4中的第一反射镜10为由图7中的第一反射镜原型10a切割出来的具有部分离轴抛物面的反射镜，图4中的第二反射镜20为由图7中的第二反射镜原型20a切割出来的具有部分离轴抛物面的反射镜，D即为具有完整的两个抛物面的反射镜的相对抛物面(抛物面20b与抛物面10b)的中心(图7中的O1和O2)投影到XZ平面上的直线距离。第一反射镜10的焦距f1与第一反射镜10的曲率半径R1有关，f1与R1成正比，即：当R1越大时，f1越大；当R1越小时，f1越小。例如，f1＝0.5*R1，若R1＝1mm，则f1＝0.5mm；若R1＝2mm，则f1＝1mm；若R1＝0.1mm，则f1＝0.05mm。相应地，第二反射镜20的焦距f2与第二反射镜20的曲率半径R2有关，f2与R2成正比，即：当R2越大时，f2越大；当R2越小时，f2越小。例如，f2＝0.8*R2，若R2＝1mm，则f2＝0.8mm；若R2＝2mm，则f2＝1.6mm；若R2＝0.2mm，则f2＝0.16mm。由于镜头模组30的焦距改变倍数K＝f1/f2，且第一反射镜原型10a与第二反射镜原型20a的两个相对抛物面中心之间的直线距离D＝|f1-f2|，其中f1可以为0.1、0.12、0.3等数值，f2可以为0.1、0.22、0.3等数值。则当f1＝1mm，f2＝0.8mm时，K＝f1/f2＝1.25，D＝|f1-f2|＝0.2mm，即当满足K＝1.25mm，D＝0.2mm时，离轴折反式摄像头100的焦距放大了1.25倍；当f1＝0.4mm，f2＝0.8mm时，K＝f1/f2＝0.5，D＝|f1-f2|＝0.4mm，即当满足K＝0.5，D＝0.4mm时，离轴折反式摄像头100的焦距缩小了0.5倍。综上，通过调节第一反射镜10、第二反射镜20的焦距和上述直线距离能有效放大或缩小离轴折反式摄像头100的焦距。The first reflection mirror 10 and the second reflection mirror 20 are used to enlarge or reduce the focal length of the off-axis catadioptric camera 100 (compared to the camera without the first reflection mirror and the second reflection mirror, the whole text is applicable). Specifically, the off-axis catadioptric camera 100 satisfies the conditional expressions: K=f1/f2, D=|f1-f2|. Wherein, K is the change factor of the focal length of the lens module 30, f1 is the focal length of the first reflector 10, f2 is the focal length of the second reflector 20, and D is the difference between the first reflector prototype 10a and the second reflector prototype 20a. The straight-line distance between the centers of the two opposite paraboloids (as shown in FIG. 7 ). Specifically, please refer to FIG. 4 and FIG. 7 . FIG. 7 shows the first reflection in the off-axis catadioptric camera 100 shown in FIG. 4 . The first mirror prototype 10a before the mirror 10 is cut and the second mirror prototype 20a before the second mirror 20 is cut, the first mirror prototype 10a and the second mirror prototype 20a are mirrors with two complete paraboloids That is, the first reflector 10 in FIG. 4 is a reflector with a partial off-axis paraboloid cut out from the first reflector prototype 10a in FIG. 7 , and the second reflector 20 in FIG. For the mirror with partial off-axis paraboloids cut from the second mirror prototype 20a, D is the center (O1 and O2 ) the straight-line distance projected onto the XZ plane. The focal length f1 of the first reflecting mirror 10 is related to the curvature radius R1 of the first reflecting mirror 10, and f1 is proportional to R1, that is: when R1 is larger, f1 is larger; when R1 is smaller, f1 is smaller. For example, f1=0.5*R1, if R1=1mm, then f1=0.5mm; if R1=2mm, then f1=1mm; if R1=0.1mm, then f1=0.05mm. Correspondingly, the focal length f2 of the second reflecting mirror 20 is related to the curvature radius R2 of the second reflecting mirror 20, and f2 is proportional to R2, that is: when R2 is larger, f2 is larger; when R2 is smaller, f2 is smaller. For example, f2=0.8*R2, if R2=1mm, then f2=0.8mm; if R2=2mm, then f2=1.6mm; if R2=0.2mm, then f2=0.16mm. Since the focal length change factor of the lens module 30 is K=f1/f2, and the linear distance between the centers of the two opposite paraboloids of the first mirror prototype 10a and the second mirror prototype 20a is D=|f1-f2|, where f1 It can be 0.1, 0.12, 0.3 and other values, and f2 can be 0.1, 0.22, 0.3 and other values. Then when f1=1mm, f2=0.8mm, K=f1/f2=1.25, D=|f1-f2|=0.2mm, that is, when K=1.25mm, D=0.2mm, off-axis folding The focal length of the camera 100 is enlarged by 1.25 times; when f1=0.4mm, f2=0.8mm, K=f1/f2=0.5, D=|f1-f2|=0.4mm, that is, when K=0.5, D=0.4 mm, the focal length of the off-axis catadioptric camera 100 is reduced by 0.5 times. To sum up, the focal length of the off-axis catadioptric camera 100 can be effectively enlarged or reduced by adjusting the focal lengths of the first reflecting mirror 10 and the second reflecting mirror 20 and the above-mentioned linear distance.
请参阅图4和图5，第一反射镜10包括相背的第一物侧面11和第一像侧面12，第一物侧面11为凹面。第一物侧面11用于反射从外界入射至第一反射镜10的入射光线。第一物侧面11可为抛物面、球面、椭球面或双曲面中的任意一种。在本申请实施方式中，第一物侧面11为抛物面、球面、椭球面或双曲面时，可有效优化离轴折反式摄像头100的成像像差，提高成像质量。进一步地，当第一物侧面11为抛物面时，由于抛物面为二次曲面，可以进一步优化离轴折反式摄像头100的成像像差，校正离轴折反式摄像头100的本身像差，极大地提高成像质量。Referring to FIGS. 4 and 5 , the first reflector 10 includes a first object side 11 and a first image side 12 opposite to each other, and the first object side 11 is concave. The first object side surface 11 is used for reflecting the incident light incident to the first reflecting mirror 10 from the outside. The first object side surface 11 may be any one of a paraboloid, a sphere, an ellipsoid or a hyperboloid. In the embodiment of the present application, when the first object side surface 11 is a paraboloid, a sphere, an ellipsoid or a hyperboloid, the imaging aberration of the off-axis catadioptric camera 100 can be effectively optimized, and the imaging quality can be improved. Further, when the side surface 11 of the first object is a paraboloid, since the paraboloid is a quadratic surface, the imaging aberration of the off-axis catadioptric camera 100 can be further optimized, and the inherent aberration of the off-axis catadioptric camera 100 can be corrected to greatly Improve image quality.
第二反射镜20包括相背的第二物侧面21和第二像侧面22，第二像侧面22为凸面。第二像侧面22用于反射被第一物侧面11反射至第二像侧面22的入射光线。第二像侧面22为抛物面、球面、椭球面或双曲面中的任意一种。第一物侧面11与第二像侧面22相对。在本申请实施方式中，第二像侧面22为抛物面、球面、椭球面或双曲面时，可有效优化离轴折反式摄像头100的成像像差，提高成像质量。进一步地，当第二像侧面22为抛物面时，由于抛物面为二次曲面，可以进一步优化离轴折反式摄像头100的成像像差，校正离轴折反式摄像头100的本身像差，极大地提高成像质量。第一物侧面11与第二像侧面22相对设置，有利于入射光线在第一物侧面11与第二像侧面22之间形成反射光路，折叠入射光线，实现离轴折反式摄像头100的小型化。The second mirror 20 includes a second object side 21 and a second image side 22 opposite to each other, and the second image side 22 is convex. The second image side surface 22 is used to reflect the incident light reflected by the first object side surface 11 to the second image side surface 22 . The second image side surface 22 is any one of a paraboloid, a sphere, an ellipsoid or a hyperboloid. The first object side 11 is opposite to the second image side 22 . In the embodiment of the present application, when the second image side surface 22 is a paraboloid, a spherical surface, an ellipsoid or a hyperboloid, the imaging aberration of the off-axis catadioptric camera 100 can be effectively optimized, and the imaging quality can be improved. Further, when the second image side surface 22 is a paraboloid, since the paraboloid is a quadratic surface, the imaging aberration of the off-axis catadioptric camera 100 can be further optimized, the aberration of the off-axis catadioptric camera 100 can be corrected, and the aberration of the off-axis catadioptric camera 100 can be corrected greatly. Improve image quality. The first object side 11 and the second image side 22 are arranged opposite to each other, which is beneficial for the incident light to form a reflected light path between the first object side 11 and the second image side 22, fold the incident light, and realize the small off-axis catadioptric camera 100. change.
第一反射镜10和第二反射镜20可采用碳化硅或适用于空间的高比刚度、接近零膨胀的、热畸变小的替代材料，如超低膨胀(ULE)玻璃腔体、ZERODO材料，有利于离轴折反式摄像头100的轻量化设计。The first reflecting mirror 10 and the second reflecting mirror 20 can be made of silicon carbide or alternative materials suitable for space with high specific stiffness, near zero expansion, and small thermal distortion, such as ultra-low expansion (ULE) glass cavity, ZERODO material, It is beneficial to the lightweight design of the off-axis folding camera 100 .
第二反射镜20位于第一反射镜10的物侧，使得入射光线依次入射至第一反射镜10、第二反射镜20和镜头模组30，可有效减小离轴折反式摄像头100的总长度。The second reflector 20 is located on the object side of the first reflector 10 , so that incident light enters the first reflector 10 , the second reflector 20 and the lens module 30 in sequence, which can effectively reduce the off-axis catadioptric camera 100 . total length.
请参阅图8，镜头模组30用于将入射光线汇聚在成像探测器40上成像。镜头模组30从物侧至像侧依次包括第一透镜31、第二透镜32、第三透镜33和第四透镜34。当镜头模组30用于成像时，从第二反射镜20反射的入射光线从物侧方向进入镜头模组30，并依次穿过第一透镜31、第二透镜32、第三透镜33和第四透镜34，最终汇聚到成像探测器40上成像。Please refer to FIG. 8 , the lens module 30 is used for converging the incident light on the imaging detector 40 for imaging. The lens module 30 includes a first lens 31 , a second lens 32 , a third lens 33 and a fourth lens 34 in sequence from the object side to the image side. When the lens module 30 is used for imaging, the incident light reflected from the second reflector 20 enters the lens module 30 from the object side direction, and passes through the first lens 31 , the second lens 32 , the third lens 33 and the first lens 32 in sequence. The four lenses 34 finally converge on the imaging detector 40 for imaging.
镜头模组30的焦距可以是固定的，镜头模组30也可以是变焦的。当镜头模组30进行变焦时，成像探测器40固定不动，第一透镜31、第二透镜32、第三透镜33和第四透镜34中的至少一个移动，以使得第一透镜31、第二透镜32、第三透镜33和第四透镜34任意两者之间的相对位置中的至少一个变化进行变焦，加之第一反射镜10和第二反射镜20使得离轴折反式摄像头100呈倍数变焦。例如，假设镜头模组30的初始焦距f为1mm，若不设置第一反射镜和第二反射镜，则摄像头的初始焦距就为1mm，由于本申请设置了第一反射镜10和第二反射镜20，第一反射镜10和第二反射镜20放大离轴折反式摄像头100的焦距，且放大倍数为1.5，此时离轴折反式摄像头100的初始焦距为1.5mm。当第一透镜31、第二透镜32、第三透镜33和第四透镜34中的至少一个移动使得镜头模组30的焦距f变为2mm，若不设置第一反射镜和第二反射镜，则摄像头的初始焦距就为2mm，由于本申请设置了第一反射镜10和第二反射镜20，第一反射镜10和第二反射镜20放大离轴折反式摄像头100的焦距，且放大倍数仍为1.5，则此时离轴折反式摄像头100的焦距变为3mm。本申请实施方式中，镜头模组30的焦距只需要微调，就能实现离轴折反式摄像头100的焦距放大作用明显，达到离轴折反式摄像头100的焦距长、总长短的效果，有利于离轴折反式摄像头100的小型化。The focal length of the lens module 30 can be fixed, and the lens module 30 can also be zoomed. When the lens module 30 zooms, the imaging detector 40 is fixed, and at least one of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 moves, so that the first lens 31 , the At least one of the relative positions between the second lens 32 , the third lens 33 and the fourth lens 34 is changed to perform zooming, and the first reflecting mirror 10 and the second reflecting mirror 20 make the off-axis catadioptric camera 100 appear as Multiplier zoom. For example, assuming that the initial focal length f of the lens module 30 is 1mm, if the first reflector and the second reflector are not provided, the initial focal length of the camera is 1mm. Since the first reflector 10 and the second reflector are set in the present application The mirror 20, the first reflecting mirror 10 and the second reflecting mirror 20 amplify the focal length of the off-axis catadioptric camera 100, and the magnification is 1.5. At this time, the initial focal length of the off-axis catadioptric camera 100 is 1.5 mm. When at least one of the first lens 31, the second lens 32, the third lens 33 and the fourth lens 34 moves so that the focal length f of the lens module 30 becomes 2mm, if the first and second reflectors are not provided, Then the initial focal length of the camera is 2mm. Since the first reflector 10 and the second reflector 20 are provided in the present application, the first reflector 10 and the second reflector 20 magnify the focal length of the off-axis catadioptric camera 100, and enlarge the When the multiple is still 1.5, the focal length of the off-axis catadioptric camera 100 becomes 3 mm at this time. In the embodiment of the present application, the focal length of the lens module 30 only needs to be fine-tuned, and the focal length magnification effect of the off-axis catadioptric camera 100 can be achieved obviously, and the effects of long focal length and total length of the off-axis catadioptric camera 100 can be achieved. It is beneficial to the miniaturization of the off-axis folding camera 100 .
当镜头模组30进行变焦时，第一透镜31、第二透镜32、第三透镜33和第四透镜34中的至少一个移动，此处的至少一个透镜组移动的情况包括：①第一透镜31移动，第二透镜32、第三透镜33和第四透镜34不移动。②第二透镜32移动，第一透镜31、第三透镜33和第四透镜34不移动。③第三透镜33移动，第一透镜31、第二透镜32和第四透镜34不移动。④第一透镜31和第二透镜32均移动，第三透镜33和第四透镜34不移动。⑤第二透镜32和第三透镜33均移动，第一透镜31和第四透镜34不移动。⑥第一透镜31和第三透镜33均移动，第二透镜32和第四透镜34不移动。⑦第一透镜31、第二透镜32和第三透镜33均移动，第四透镜34不移动。⑧第一透镜31、第二透镜32和第四透镜34均移动，第三透镜33不移动。⑨第一透镜31、第三透镜33和第四透镜34均移动，第二透镜32不移动。⑩第二透镜32、第三透镜33和第四透镜34均移动，第一透镜31不移动。第一透镜31、第二透镜32、第三透镜33和第四透镜34均移动。第一透镜31、第二透镜32、第三透镜33和第四透镜34之间的相对位置变化，此处透镜的相对位置变化包括透镜的距离、位移和方向等变化。When the lens module 30 zooms, at least one of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 moves, and the movement of the at least one lens group here includes: 1. the first lens 31 moves, and the second lens 32, the third lens 33 and the fourth lens 34 do not move. ②The second lens 32 moves, and the first lens 31 , the third lens 33 and the fourth lens 34 do not move. ③ The third lens 33 moves, and the first lens 31 , the second lens 32 and the fourth lens 34 do not move. ④ Both the first lens 31 and the second lens 32 move, and the third lens 33 and the fourth lens 34 do not move. ⑤ Both the second lens 32 and the third lens 33 move, and the first lens 31 and the fourth lens 34 do not move. ⑥ Both the first lens 31 and the third lens 33 move, and the second lens 32 and the fourth lens 34 do not move. ⑦ The first lens 31 , the second lens 32 and the third lens 33 all move, and the fourth lens 34 does not move. ⑧ The first lens 31 , the second lens 32 and the fourth lens 34 all move, and the third lens 33 does not move. ⑨ The first lens 31 , the third lens 33 and the fourth lens 34 all move, and the second lens 32 does not move. ⑩ The second lens 32, the third lens 33 and the fourth lens 34 all move, and the first lens 31 does not move. The first lens 31, the second lens 32, the third lens 33, and the fourth lens 34 all move. The relative positions of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 change, where the relative position changes of the lenses include changes in the distance, displacement, and direction of the lenses.
本申请实施方式通过对镜头模组30进行变焦可以将镜头模组30在短焦状态和长焦状态之间进行切换。在一个实施例中，当镜头模组30进行短焦状态和长焦状态的切换时，第一透镜31固定不动，第二透镜32、第三透镜33和第四透镜34移动，以使得第二透镜32、第三透镜33和第四透镜34相对于第一透镜31的位置变化。其中，第二透镜32、第三透镜33和第四透镜34的移动距离可以不同，例如第二透镜32移动距离为3.89mm，第三透镜33移动距离为3.69mm，第四透镜34移动距离为3.49mm，此时，第二透镜32的移动距离大于第三透镜33的移动距离，且第三透镜33的移动距离大于第四透镜34的移动距离。此时的第二透镜32、第三透镜33和第四透镜34可以同时移动或不同时移动。具体地，当第二透镜32、第三透镜33和第四透镜34同时移动时，第二透镜32、第三透镜33和第四透镜34的移动速度可以不同，可以是第二透镜32的移动速度比第三透镜33和第四透镜34的移动速度更快，以使第二透镜32、第三透镜33和第四透镜34同时移动且移动速度不同时，使得第二透镜32、第三透镜33和第四透镜34的移动距离不相等的情况下移动时间一致，便于控制。当第二透镜32、第三透镜33和第四透镜34不同时移动时，第二透镜32、第三透镜33和第四透镜34移动的先后顺序不同，可以先移动第二透镜32，再移动第三透镜组33，最后移动第四透镜34，以使得第二透镜32、第三透镜33和第四透镜34的移动距离不相等的情况下移动速度相同，也便于控制。In the embodiment of the present application, the lens module 30 can be switched between a short-focus state and a long-focus state by zooming the lens module 30 . In one embodiment, when the lens module 30 switches between the short-focus state and the long-focus state, the first lens 31 is fixed, and the second lens 32, the third lens 33 and the fourth lens 34 move, so that the first lens 31 is moved. The positions of the second lens 32 , the third lens 33 and the fourth lens 34 relative to the first lens 31 vary. The moving distances of the second lens 32, the third lens 33 and the fourth lens 34 may be different. For example, the moving distance of the second lens 32 is 3.89 mm, the moving distance of the third lens 33 is 3.69 mm, and the moving distance of the fourth lens 34 is At this time, the moving distance of the second lens 32 is greater than the moving distance of the third lens 33 , and the moving distance of the third lens 33 is greater than the moving distance of the fourth lens 34 . At this time, the second lens 32 , the third lens 33 and the fourth lens 34 may move at the same time or not at the same time. Specifically, when the second lens 32 , the third lens 33 and the fourth lens 34 move at the same time, the moving speeds of the second lens 32 , the third lens 33 and the fourth lens 34 may be different, which may be the movement of the second lens 32 The speed is faster than the moving speed of the third lens 33 and the fourth lens 34, so that the second lens 32, the third lens 33 and the fourth lens 34 move at the same time and the moving speed is different, so that the second lens 32, the third lens When the moving distances of the lens 33 and the fourth lens 34 are not equal, the moving time is the same, which is convenient for control. When the second lens 32 , the third lens 33 and the fourth lens 34 do not move at the same time, the second lens 32 , the third lens 33 and the fourth lens 34 move in different sequences, and the second lens 32 can be moved first, and then moved The third lens group 33 finally moves the fourth lens 34, so that the moving speed of the second lens 32, the third lens 33 and the fourth lens 34 is the same when the moving distances of the second lens 32, the third lens 33 and the fourth lens 34 are not equal, which is also easy to control.
更具体地，当镜头模组30由短焦状态切换为长焦状态时，第二透镜32、第三透镜33和第四透镜34沿着光轴方向由像侧至物侧移动；当变焦镜头100由长焦状态切换为短焦状态时，第二透镜32、第三透镜33和第四透镜34沿着光轴方向由物侧至像侧移动。More specifically, when the lens module 30 is switched from the short-focus state to the long-focus state, the second lens 32, the third lens 33 and the fourth lens 34 move from the image side to the object side along the optical axis direction; when the zoom lens When the 100 is switched from the telephoto state to the short focal state, the second lens 32 , the third lens 33 and the fourth lens 34 move along the optical axis direction from the object side to the image side.
第一透镜31、第二透镜32、第三透镜33和第四透镜34的材质可以为塑料或玻璃。其中，玻璃的折射率比塑料的大，由于材质的折射率越高，使入射光发生折射的能力越强。因此，折射率越高，透镜可以设置得越薄。因此，当第一透镜31、第二透镜32、第三透镜33和第四透镜34的材质为玻璃时，透镜更薄，有利于离轴折反式摄像头100的小型化。此外，透镜由玻璃材质制成，还能有效解决环境温度变化时透镜产生温漂现象的问题。而当第一透镜31、第二透镜32、第三透镜33和第四透镜34的材质为塑料时，成本较低、便于量产。The material of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 may be plastic or glass. Among them, the refractive index of glass is larger than that of plastic, because the higher the refractive index of the material, the stronger the ability to refract incident light. Therefore, the higher the refractive index, the thinner the lens can be set. Therefore, when the material of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 is glass, the lenses are thinner, which is beneficial to the miniaturization of the off-axis catadioptric camera 100 . In addition, the lens is made of glass material, which can effectively solve the problem of temperature drift of the lens when the ambient temperature changes. However, when the material of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 is plastic, the cost is low and mass production is convenient.
第一透镜31的物侧面为凸面，第一透镜31的像侧面为凸面；第二透镜32的物侧面为凹面，第二透镜32的像侧面为凹面；第三透镜33的物侧面为凹面，第三透镜33的像侧面为凸面；第四透镜34的物侧面为凸面，第四透镜34的像侧面为凹面。此时，第一透镜31具有正屈折力，第二透镜32具有负屈折力。The object side of the first lens 31 is convex, the image side of the first lens 31 is convex; the object side of the second lens 32 is concave, the image side of the second lens 32 is concave; the object side of the third lens 33 is concave, The image side of the third lens 33 is convex; the object side of the fourth lens 34 is convex, and the image side of the fourth lens 34 is concave. At this time, the first lens 31 has a positive refractive power, and the second lens 32 has a negative refractive power.
当第一透镜31、第二透镜32、第三透镜33和第四透镜34的面型和屈折力满足上述条件时，离轴折反式摄像头100结构紧凑、各透镜外形尺寸便于加工，且焦距可变范围大、成像质量好，适宜大规模量产。When the surface shapes and refractive powers of the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 satisfy the above conditions, the off-axis catadioptric camera 100 has a compact structure, the external dimensions of each lens are easy to process, and the focal length Large variable range and good imaging quality, suitable for mass production.
另外，镜头模组30的第一透镜31、第二透镜32、第三透镜33和第四透镜34还可以替换为第一透镜组、第二透镜组、第三透镜组和第四透镜组。其中，第一透镜组包含一个或多个透镜，第二透镜组也包含一个或多个透镜，第三透镜组也包含一个或多个透镜，第四透镜组也包含一个或多个透镜。同理，通过调节一个或多个透镜组的位置关系，如改变透镜组之间的距离，可以改变镜头模组30的焦距，从而改变离轴折反式摄像头100焦距。In addition, the first lens 31 , the second lens 32 , the third lens 33 and the fourth lens 34 of the lens module 30 can also be replaced by the first lens group, the second lens group, the third lens group and the fourth lens group. Wherein, the first lens group includes one or more lenses, the second lens group also includes one or more lenses, the third lens group also includes one or more lenses, and the fourth lens group also includes one or more lenses. Similarly, by adjusting the positional relationship of one or more lens groups, such as changing the distance between the lens groups, the focal length of the lens module 30 can be changed, thereby changing the focal length of the off-axis catadioptric camera 100 .
离轴折反式摄像头100还可包括设置在第四透镜34与成像探测器40之间的红外滤光片50，红外滤光片50用于滤除环境中的红外光。The off-axis catadioptric camera 100 may further include an infrared filter 50 disposed between the fourth lens 34 and the imaging detector 40, and the infrared filter 50 is used to filter out infrared light in the environment.
成像探测器40可以为电荷耦合影像感测组件(Charge Coupled Device，CCD)或者互补金属氧化物半导体影像感测组件(Complementary Metal-Oxide Semiconductor，CMOS)。汇聚至成像探测器40的光线先经过处理后转变为电信号，再通过模数转换器芯片(Analog-to-digital converter chip，ADC)将电信号转换成数字信号，数字信号经过处理后用于成像。The imaging detector 40 may be a Charge Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS). The light converged to the imaging detector 40 is first processed and then converted into an electrical signal, and then the electrical signal is converted into a digital signal by an analog-to-digital converter chip (ADC), and the digital signal is processed and used for imaging.
在本说明书的描述中，参考术语“某些实施方式”、“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”的描述意指结合所述实施方式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方式或示例中。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方式或示例。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方式或示例中以合适的方式结合。In the description of this specification, reference is made to the terms "some embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples." Described means that a particular feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个所述特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个，除非另有明确具体的限定。In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features delimited with "first", "second" may expressly or implicitly include at least one of said features. In the description of the present application, "plurality" means at least two, such as two, three, unless expressly and specifically defined otherwise.
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、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 above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Variations, modifications, substitutions, and alterations are made to the embodiments, and the scope of the present application is defined by the claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925962.0ACN110515189A (en) | 2019-09-27 | 2019-09-27 | Off-axis catadioptric camera and electronic device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925962.0ACN110515189A (en) | 2019-09-27 | 2019-09-27 | Off-axis catadioptric camera and electronic device |
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| CN110515189Atrue CN110515189A (en) | 2019-11-29 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201910925962.0APendingCN110515189A (en) | 2019-09-27 | 2019-09-27 | Off-axis catadioptric camera and electronic device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20191129 |