技术领域Technical Field
本发明涉及AR技术领域，尤其涉及一种合色光机模组及其透镜系统和合色装置以及AR装置。The present invention relates to the field of AR technology, and in particular to a color combining optical machine module and its lens system, a color combining device and an AR device.
背景技术Background Art
随着社会大众对AR眼镜的认可度越来越高，增强现实技术也迎来了较快的发展。然而目前各类AR眼镜显示模组体积过大，亮度过低等问题也逐渐暴露出来。Micro LED显示芯片作为高亮度的主动发光芯片，有望克服AR眼镜模组目前在体积，亮度上的不足，受到了大量的关注。As the public's recognition of AR glasses increases, augmented reality technology has also ushered in rapid development. However, the problems of various AR glasses display modules being too large and too low in brightness have gradually been exposed. Micro LED display chips, as high-brightness active light-emitting chips, are expected to overcome the current shortcomings of AR glasses modules in terms of size and brightness, and have received a lot of attention.
现有技术中，以单绿色的Micro LED作为显示芯片的AR眼镜已获问世，该类AR眼镜的产品形态接近日常人们佩戴的眼镜，可长时间佩戴而不至于疲劳，在信息提示方面具有较高的应用价值。然而，单绿色的显示画面也限制了其更广泛的应用。而现在RGB三色的Micro LED芯片的批量制备技术趋于成熟，使得开发全彩的基于Micro LED显示芯片的AR光机模组成为可能。In the existing technology, AR glasses using single green Micro LED as display chip have been launched. The product form of this type of AR glasses is close to the glasses that people wear everyday. They can be worn for a long time without getting tired, and have high application value in terms of information prompts. However, the single green display screen also limits its wider application. Now that the batch preparation technology of RGB three-color Micro LED chips has matured, it has become possible to develop full-color AR optical machine modules based on Micro LED display chips.
全彩的AR光机模组的工作原理是通过使用Xcube对RGB三色的Micro LED显示芯片进行白光合像，然后使用透镜系统将出射图像投射至光波导镜片中。最终通过光波导镜片的扩瞳后传像至用户人眼。这其中，透镜系统即需要保证接收图像的光束能量被高效传递，又需要承受来自Micro LED显示芯片的高温辐射而保持较高的图像解析度，发挥了举足轻重的作用。此外，如何在满足功能的同时缩减全彩AR光机模组的体积，也是获得更广泛应用的关键。The working principle of the full-color AR optical machine module is to use Xcube to combine white light with the RGB Micro LED display chip, and then use the lens system to project the output image into the optical waveguide lens. Finally, the image is transmitted to the user's eye after the pupil is expanded through the optical waveguide lens. Among them, the lens system needs to ensure that the energy of the light beam of the received image is efficiently transmitted, and it needs to withstand the high temperature radiation from the Micro LED display chip to maintain a high image resolution, which plays a pivotal role. In addition, how to reduce the size of the full-color AR optical machine module while meeting the functions is also the key to achieving wider applications.
发明内容Summary of the invention
本发明的一个主要优势在于提供一种合色光机模组及其透镜系统和合色装置以及AR装置，其中所述合色光机模组是一种高解析度，小尺寸，高光效的RGB合色光机模组。A major advantage of the present invention is to provide a color combining light engine module and its lens system, a color combining device and an AR device, wherein the color combining light engine module is a high-resolution, small-size, high-light-efficiency RGB color combining light engine module.
本发明的另一个优势在于提供一种合色光机模组及其透镜系统和合色装置以及AR装置，可达到兼具微型化、组装便利性及良好投射品质的特性，以应用于更广泛的产品中。Another advantage of the present invention is to provide a color combining optical machine module and its lens system, color combining device and AR device, which can achieve the characteristics of miniaturization, assembly convenience and good projection quality, so as to be applied to a wider range of products.
本发明的另一个优势在于提供一种合色光机模组及其透镜系统和合色装置以及AR装置，其中所述透镜系统适配RGB三色Micro LED显示芯片。Another advantage of the present invention is to provide a color combining optical machine module and its lens system, a color combining device and an AR device, wherein the lens system is adapted to an RGB three-color Micro LED display chip.
依本发明的一个方面，能够实现前述目的和其他目的和优势的本发明的一透镜系统，包括由物侧至像侧沿光轴依次排列的光阑、第一透镜、第二透镜、第三投影以及第四透镜，其中所述第一透镜具有正光焦度，所述第二透镜具有负光焦度，所述第三透镜具有正光焦度，所述第四透镜具有正光焦度；所述透镜系统的四个透镜的物侧及像侧表面均为非球面，设所述透镜系统的焦距为f，所述第一透镜的焦距为f1，所述第二透镜的焦距为f2，所述第三透镜的焦距为f3，所述第四透镜的焦距为f4，其满足如下条件：According to one aspect of the present invention, a lens system of the present invention that can achieve the above-mentioned purpose and other purposes and advantages comprises a stop, a first lens, a second lens, a third projection lens and a fourth lens arranged in sequence along the optical axis from the object side to the image side, wherein the first lens has positive focal power, the second lens has negative focal power, the third lens has positive focal power, and the fourth lens has positive focal power; the object side and image side surfaces of the four lenses of the lens system are all aspherical surfaces, assuming that the focal length of the lens system is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4, which satisfies the following conditions:
1<|f3/f4|<2.51<|f3/f4|<2.5
-0.2<1/f2+1/f3+1/f4<0-0.2<1/f2+1/f3+1/f4<0
0.8<|f1/f|<1.2。0.8<|f1/f|<1.2.
根据本发明的一个实施例，所述第二透镜的物侧表面曲率半径为R1，其像侧表面曲率半径为R2；所述第四透镜的物侧表面曲率半径为R3，像侧表面曲率半径为R4，其满足下列条件：According to one embodiment of the present invention, the object side surface radius of the second lens is R1, and the image side surface radius of the second lens is R2; the object side surface radius of the fourth lens is R3, and the image side surface radius of the fourth lens is R4, which satisfies the following conditions:
1<|R2/R1|<3.51<|R2/R1|<3.5
2<|R4/R3|<10。2<|R4/R3|<10.
根据本发明的一个实施例，所述第一透镜靠近物侧的外侧表面至所述第四透镜靠近像侧的内侧表面，于光轴上的距离为D，其满足下列条件：5.5(毫米)<D<6.5(毫米)。According to one embodiment of the present invention, a distance on the optical axis from the outer surface of the first lens close to the object side to the inner surface of the fourth lens close to the image side is D, which satisfies the following condition: 5.5 (mm) < D < 6.5 (mm).
根据本发明的一个实施例，所述透镜系统的所述第一透镜、所述第二透镜、所述第三投影、所述第四透镜中的至少一个透镜的材质为玻璃材料。According to an embodiment of the present invention, at least one of the first lens, the second lens, the third lens, and the fourth lens of the lens system is made of glass material.
根据本发明的一个实施例，所述透镜系统的所述第一透镜、所述第二透镜、所述第三投影、所述第四透镜中的至少一个透镜的材料的阿贝数小于22，至少一个透镜材料的阿贝数大于40。According to one embodiment of the present invention, the Abbe number of the material of at least one of the first lens, the second lens, the third lens, and the fourth lens of the lens system is less than 22, and the Abbe number of the material of at least one lens is greater than 40.
根据本申请的另一方面，本申请进一步提供一合色装置，包括：According to another aspect of the present application, the present application further provides a color combining device, comprising:
由第一棱镜、第二棱镜、第三棱镜以及第四棱镜胶合而成的合色棱镜，其中所述第一棱镜、所述第二棱镜、第三棱镜以及所述第四棱镜为等腰直角棱镜；以及A color-combining prism formed by gluing a first prism, a second prism, a third prism, and a fourth prism, wherein the first prism, the second prism, the third prism, and the fourth prism are isosceles right-angle prisms; and
被设置于所述合色棱镜三个光学面侧的第一显示芯片、第二显示芯片以及第三显示芯片，其中所述第一显示芯片设置在所述第一棱镜的外侧，所述第二显示芯片设置在所述第二棱镜的外侧，所述第三显示芯片设置在所述第三棱镜的外侧。A first display chip, a second display chip and a third display chip are arranged on the three optical surface sides of the color combining prism, wherein the first display chip is arranged on the outside of the first prism, the second display chip is arranged on the outside of the second prism, and the third display chip is arranged on the outside of the third prism.
根据本发明的一个实施例，所述第一显示芯片为红光Micro LED显示芯片、所述第二显示芯片为绿光Micro LED显示芯片、所述第三显示芯片为蓝光Micro LED显示芯片。According to one embodiment of the present invention, the first display chip is a red light Micro LED display chip, the second display chip is a green light Micro LED display chip, and the third display chip is a blue light Micro LED display chip.
根据本发明的一个实施例，所述显示芯片包含有保护玻璃，所述第一显示芯片、所述第二显示芯片以及所述第三显示芯片被分别设置在所述合色棱镜三个表面。According to an embodiment of the present invention, the display chip includes a protective glass, and the first display chip, the second display chip and the third display chip are respectively arranged on three surfaces of the color combining prism.
根据本发明的一个实施例，所述合色装置进一步包括红光反射膜及蓝光反射膜，其中所述红光反射膜及蓝光反射膜被设置在所述合色棱镜的胶合面。According to an embodiment of the present invention, the color combining device further comprises a red light reflecting film and a blue light reflecting film, wherein the red light reflecting film and the blue light reflecting film are arranged on the bonding surface of the color combining prism.
根据本发明的一个实施例，在所述第一棱镜和在第二棱镜的胶合面以及所述第三棱镜和所述第四棱镜的胶合面处镀有所述红光反射膜，在所述第二棱镜和所述第三棱镜以及第一棱镜和所述第四棱镜的胶合面处镀有所述蓝光反射膜。According to one embodiment of the present invention, the red light reflecting film is coated on the bonding surfaces of the first prism and the second prism and the bonding surfaces of the third prism and the fourth prism, and the blue light reflecting film is coated on the bonding surfaces of the second prism and the third prism and the first prism and the fourth prism.
根据本申请的另一方面，本申请进一步提供一合色光机模组，包括：According to another aspect of the present application, the present application further provides a color light engine module, including:
如上任一所述的透镜系统；和A lens system as described in any one of the above; and
如上任一所述的合色装置，其中所述透镜系统的所述第一透镜靠近物侧的外侧表面至合色装置的所述显示芯片面，于光轴上的距离为T，其满足下列条件：In any of the above color combining devices, the distance between the outer surface of the first lens of the lens system close to the object side and the display chip surface of the color combining device on the optical axis is T, which satisfies the following conditions:
10.5(毫米)<T<12.5(毫米)10.5(mm)<T<12.5(mm)
0.46(毫米)<|D/T|<0.56(毫米)。0.46(mm)<|D/T|<0.56(mm).
根据本申请的另一方面，本申请进一步提供一AR装置，包括：According to another aspect of the present application, the present application further provides an AR device, including:
整机支架；Whole machine bracket;
被设置于所述整机支架的至少一波导显示系统、相机及空间传感器、计算单元以及位置传感器，其中所述计算单元与所述至少一波导显示系统、所述相机及空间传感器以及所述位置传感器相电连接，其中所述波导显示系统包括如上所述的合色光机模组和位于所述合色光机模组光入射端的光波导片。At least one waveguide display system, camera and space sensor, computing unit and position sensor are arranged on the whole machine bracket, wherein the computing unit is electrically connected to the at least one waveguide display system, the camera and space sensor and the position sensor, wherein the waveguide display system includes the color combining optical machine module as described above and an optical waveguide sheet located at the light incident end of the color combining optical machine module.
根据本发明的一个实施例，所述波导显示系统包括左眼波导显示系统和右眼波导显示系统，其中所述左眼波导显示系统安装在所述整机支架的左侧，所述右眼波导显示系统被安装在所述整机支架的右侧。According to one embodiment of the present invention, the waveguide display system includes a left-eye waveguide display system and a right-eye waveguide display system, wherein the left-eye waveguide display system is installed on the left side of the whole machine bracket, and the right-eye waveguide display system is installed on the right side of the whole machine bracket.
通过对随后的描述和附图的理解，本发明进一步的目的和优势将得以充分体现。Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings.
本发明的这些和其它目的、特点和优势，通过下述的详细说明和附图得以充分体现。These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description and accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
以下将结合附图和实施例来对本发明的技术方案作进一步的详细描述。在附图中，除非另有说明，相同的附图标记用于表示相同的部件。其中：The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings, unless otherwise specified, the same reference numerals are used to represent the same components. Among them:
图1是根据本发明的第一较佳实施例的一合色光机模组的结构示意图。FIG. 1 is a schematic structural diagram of a color light engine module according to a first preferred embodiment of the present invention.
图2是根据本发明上述第一较佳实施例的所述合色光机模组的像散图。FIG. 2 is an astigmatism diagram of the color combining light engine module according to the first preferred embodiment of the present invention.
图3是根据本发明上述第一较佳实施例的所述合色光机模组的畸变图。FIG. 3 is a distortion diagram of the color combining light engine module according to the first preferred embodiment of the present invention.
图4是根据本发明上述第一较佳实施例的所述合色光机模组的轴上色差图。FIG. 4 is an axial chromatic aberration diagram of the color combining light engine module according to the first preferred embodiment of the present invention.
图5是根据本发明的第二较佳实施例的一合色光机模组的结构示意图。FIG. 5 is a schematic structural diagram of a color light engine module according to a second preferred embodiment of the present invention.
图6是根据本发明上述第二较佳实施例的所述合色光机模组的像散图。FIG. 6 is an astigmatism diagram of the color combining light engine module according to the second preferred embodiment of the present invention.
图7是根据本发明上述第二较佳实施例的所述合色光机模组的畸变图。FIG. 7 is a distortion diagram of the color combining light engine module according to the second preferred embodiment of the present invention.
图8是根据本发明上述第二较佳实施例的所述合色光机模组的轴上色差图。FIG. 8 is an axial chromatic aberration diagram of the color combining light engine module according to the second preferred embodiment of the present invention.
图9是根据本发明的第三较佳实施例的一合色光机模组的结构示意图。FIG. 9 is a schematic structural diagram of a color light engine module according to a third preferred embodiment of the present invention.
图10是根据本发明上述第三较佳实施例的所述合色光机模组的像散图。FIG. 10 is an astigmatism diagram of the color combining light engine module according to the third preferred embodiment of the present invention.
图11是根据本发明上述第三较佳实施例的所述合色光机模组的畸变图。FIG. 11 is a distortion diagram of the color combining light engine module according to the third preferred embodiment of the present invention.
图12是根据本发明上述第三较佳实施例的所述合色光机模组的轴上色差图。FIG. 12 is an axial chromatic aberration diagram of the color combining light engine module according to the third preferred embodiment of the present invention.
图13是根据本发明的第四较佳实施例的一合色光机模组的结构示意图。FIG. 13 is a schematic structural diagram of a color light engine module according to a fourth preferred embodiment of the present invention.
图14是根据本发明上述第四较佳实施例的所述合色光机模组的像散图。FIG. 14 is an astigmatism diagram of the color combining light engine module according to the fourth preferred embodiment of the present invention.
图15是根据本发明上述第四较佳实施例的所述合色光机模组的畸变图。FIG. 15 is a distortion diagram of the color combining light engine module according to the fourth preferred embodiment of the present invention.
图16是根据本发明上述第四较佳实施例的所述合色光机模组的轴上色差图。FIG. 16 is an axial chromatic aberration diagram of the color combining light engine module according to the fourth preferred embodiment of the present invention.
图17(a)是根据本发明的一个较佳实施例的合色棱镜的胶合面示意图。FIG. 17( a ) is a schematic diagram of the bonding surface of a color combining prism according to a preferred embodiment of the present invention.
图17(b)是根据本发明上较佳实施例的合色装置的合色光路示意图。FIG. 17( b ) is a schematic diagram of the color combining light path of the color combining device according to the preferred embodiment of the present invention.
图18是根据本发明另一较佳实施例的一种AR装置的结构示意图。FIG. 18 is a schematic structural diagram of an AR device according to another preferred embodiment of the present invention.
具体实施方式DETAILED DESCRIPTION
需要指出，附图示出的实施例仅作为示例用于具体和形象地解释和说明本发明的构思，其在尺寸结构方面既不必然按照比例绘制，也不构成对本发明构思的限制。It should be pointed out that the embodiments shown in the drawings are only used as examples to specifically and vividly explain and illustrate the concept of the present invention. The size and structure thereof are not necessarily drawn to scale, nor do they constitute a limitation to the concept of the present invention.
在本说明书中提到或者可能提到的上、下、左、右、前、后、正面、背面、顶部、底部等方位用语是相对于各个附图中所示的构造进行定义的，它们是相对的概念，因此有可能会根据其所处不同位置、不同使用状态而进行相应地变化。所以，也不应当将这些或者其他的方位用语解释为限制性用语。The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the various drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.
以下描述用于揭露本发明以使本领域技术人员能够实现本发明。以下描述中的优选实施例只作为举例，本领域技术人员可以想到其他显而易见的变型。在以下描述中界定的本发明的基本原理可以应用于其他实施方案、变形方案、改进方案、等同方案以及没有背离本发明的精神和范围的其他技术方案。The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.
本领域技术人员应理解的是，在本发明的揭露中，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系是基于附图所示的方位或位置关系，其仅是为了便于描述本发明和简化描述，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，因此上述术语不能理解为对本发明的限制。Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
可以理解的是，术语“一”应理解为“至少一”或“一个或多个”，即在一个实施例中，一个元件的数量可以为一个，而在另外的实施例中，该元件的数量可以为多个，术语“一”不能理解为对数量的限制。It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.
参照本申请说明书附图之图1至图17(b)所示，依照本申请的一种合色光机模组及其透镜系统和合色装置以及AR装置在接下来的描述中被阐明。所述合色光机模组包括透镜系统10和合色装置20，其中所述透镜系统10包括由物侧至像侧沿光轴依次排列的光阑11、第一透镜12、第二透镜13、第三投影14以及第四透镜15，其中所述第一透镜12具有正光焦度，所述第二透镜13具有负光焦度，所述第三透镜14具有正光焦度，所述第四透镜15具有正光焦度；所述透镜系统10的四个透镜(即第一透镜12、第二透镜13、第三投影14以及第四透镜15)的物侧及像侧表面均为非球面。Referring to Figures 1 to 17(b) of the accompanying drawings of the present application, a color combining optical machine module and its lens system, color combining device and AR device according to the present application are explained in the following description. The color combining optical machine module includes a lens system 10 and a color combining device 20, wherein the lens system 10 includes an aperture 11, a first lens 12, a second lens 13, a third projection 14 and a fourth lens 15 arranged in sequence along the optical axis from the object side to the image side, wherein the first lens 12 has a positive focal power, the second lens 13 has a negative focal power, the third lens 14 has a positive focal power, and the fourth lens 15 has a positive focal power; the object side and image side surfaces of the four lenses of the lens system 10 (i.e., the first lens 12, the second lens 13, the third projection 14 and the fourth lens 15) are all aspherical.
可以理解的是，所述第一透镜12可具有正光焦度，借此平衡第二透镜13的负光焦度，降低透镜系统敏感度；且所述第一透镜12外侧表面为凸面，借此，可维持适当的投射角度。第二透镜13可具有负光焦度，借此有效修正像差而改善系统的光学性能(例如球差，慧差等)。所述第三透镜14和所述第四透镜15可具有正光焦度，借此帮助减小所述透镜系统10的主光线角度，使所述透镜系统内侧的芯片面上的光线呈现远心，以提升系统整体照度。It can be understood that the first lens 12 may have positive focal power to balance the negative focal power of the second lens 13 and reduce the sensitivity of the lens system; and the outer surface of the first lens 12 is convex, so that a proper projection angle can be maintained. The second lens 13 may have negative focal power to effectively correct aberrations and improve the optical performance of the system (such as spherical aberration, coma, etc.). The third lens 14 and the fourth lens 15 may have positive focal power to help reduce the chief ray angle of the lens system 10, so that the light on the chip surface inside the lens system is telecentric, so as to improve the overall illumination of the system.
在符合本申请实施方式的各实施例中，各透镜的非球面曲线方程式表示如下：In each embodiment consistent with the implementation mode of the present application, the aspheric curve equation of each lens is expressed as follows:
其中，X：非球面上距离光轴为Y的点，其于相切于非球面光轴上交点切面的相对距离；Where X: the relative distance between the point on the aspheric surface that is Y away from the optical axis and the tangent plane that is tangent to the optical axis of the aspheric surface;
Y：非球面曲线上的点与光轴的垂直距离；Y: the vertical distance between the point on the aspheric curve and the optical axis;
R：曲率半径；R: radius of curvature;
k：锥面系数；k: cone coefficient;
Ai：第i阶非球面系数。Ai: i-th order aspheric coefficient.
设所述透镜系统的焦距为f，所述第一透镜12的焦距为f1，所述第二透镜13的焦距为f2，所述第三透镜14的焦距为f3，所述第四透镜15的焦距为f4，其满足如下条件：Assuming that the focal length of the lens system is f, the focal length of the first lens 12 is f1, the focal length of the second lens 13 is f2, the focal length of the third lens 14 is f3, and the focal length of the fourth lens 15 is f4, it satisfies the following conditions:
1<|f3/f4|<2.51<|f3/f4|<2.5
-0.2<1/f2+1/f3+1/f4<0-0.2<1/f2+1/f3+1/f4<0
0.8<|f1/f|<1.20.8<|f1/f|<1.2
其中，当焦距f3/f4，1/f2+1/f3+1/f4，f1/f满足上述条件时，有助于控制透镜系统中各透镜的屈折力强度总和，可有效平衡光焦度分布，并且缓解系统受温度变化所产生(投影镜头的光源产生热量，镜片的热胀冷缩、折射率变化)的影响。Among them, when the focal lengths f3/f4, 1/f2+1/f3+1/f4, and f1/f meet the above conditions, it helps to control the total refractive power strength of each lens in the lens system, effectively balance the optical power distribution, and alleviate the impact of temperature changes on the system (the light source of the projection lens generates heat, the thermal expansion and contraction of the lens, and the change of refractive index).
所述第二透镜13具有负光焦度，且所述第二透镜13的物侧表面曲率半径为R1，其像侧表面曲率半径为R2；所述第四透镜15具有正光焦度，该第四透镜15的物侧表面曲率半径为R3，像侧表面曲率半径为R4，其满足下列条件：The second lens 13 has negative power, and the object side surface curvature radius of the second lens 13 is R1, and the image side surface curvature radius is R2; the fourth lens 15 has positive power, and the object side surface curvature radius of the fourth lens 15 is R3, and the image side surface curvature radius is R4, which satisfies the following conditions:
1<|R2/R1|<3.51<|R2/R1|<3.5
2<|R4/R3|<102<|R4/R3|<10
其中，当曲率半径R2/R1，R4/R3满足上述条件时，有助于透镜系统的光线于芯片面上呈现远心，有助于提升能量利用率，提升光机模组的组装合格率。Among them, when the curvature radii R2/R1 and R4/R3 meet the above conditions, it helps the light of the lens system to appear telecentric on the chip surface, which helps to improve energy utilization and improve the assembly qualification rate of the optical machine module.
其中，所述透镜系统10中，所述第一透镜12靠近物侧的外侧表面至所述第四透镜15靠近像侧的内侧表面，于光轴上的距离为D，其满足下列条件：In the lens system 10, the distance between the outer surface of the first lens 12 close to the object side and the inner surface of the fourth lens 15 close to the image side on the optical axis is D, which satisfies the following conditions:
5.5(毫米)<D<6.5(毫米)5.5(mm)<D<6.5(mm)
其中，当D满足上述条件时，可在满足透镜系统10加工装配可行性的前提下，控制透镜系统的总长度，以维持小型化，缩小镜头的体积。When D satisfies the above conditions, the total length of the lens system can be controlled on the premise of meeting the feasibility of processing and assembling the lens system 10 to maintain miniaturization and reduce the volume of the lens.
所述透镜系统10的四个透镜中至少一个透镜的材质为玻璃材料，比如第一透镜12、第二透镜13、第三透镜14、或者第四透镜15。At least one of the four lenses of the lens system 10 is made of glass material, such as the first lens 12 , the second lens 13 , the third lens 14 , or the fourth lens 15 .
作为优选地，在本申请的该优选实施例中，所述第四透镜15为玻璃材质，而所述第一透镜12，所述第二透镜13以及所述第三透镜14皆为塑胶材质；可以理解的是第四透镜15距离显示芯片的距离较近，玻璃镜片耐热性好，可以提高工作稳定性。Preferably, in the preferred embodiment of the present application, the fourth lens 15 is made of glass, and the first lens 12, the second lens 13 and the third lens 14 are all made of plastic. It can be understood that the fourth lens 15 is closer to the display chip, and the glass lens has good heat resistance, which can improve working stability.
进一步地，所述透镜系统10的四个透镜中至少一个透镜材料的阿贝数小于22，至少一个透镜材料的阿贝数大于40，可调整透镜系统中特定透镜的材质，以利于在不同温度变化下维持透镜系统像质的稳定，以及较低的色差。Furthermore, the Abbe number of at least one lens material among the four lenses of the lens system 10 is less than 22, and the Abbe number of at least one lens material is greater than 40. The material of a specific lens in the lens system can be adjusted to maintain the stability of the image quality of the lens system and lower chromatic aberration under different temperature changes.
如图17(a)和图17(b)所示，根据本申请的另一方面，本申请的所述合色装置20包括由四个等腰直角棱镜(即第一棱镜21、第二棱镜22、第三棱镜23以及第四棱镜24)胶合而成的合色棱镜(Xcube)，以及分别设置于所述合色棱镜三个光学面侧的三个显示芯片(即第一显示芯片25、第二显示芯片26以及第三显示芯片27)。作为示例的，在本申请的该优选实施例中，所述第一显示芯片25为红光Micro LED显示芯片、所述第二显示芯片26为绿光Micro LED显示芯片、所述第三显示芯片27为蓝光Micro LED显示芯片。所述第一显示芯片25设置在所述第一棱镜21的外侧，所述第二显示芯片26设置在所述第二棱镜22的外侧，所述第三显示芯片设置在所述第三棱镜23的外侧，所述第一显示芯片25、所述第二显示芯片26以及所述第三显示芯片27发出的光经所述第一棱镜21、所述第二棱镜22以及所述第三棱镜23折射或反射后，再经所述第四棱镜24的一侧出射。As shown in FIG. 17 (a) and FIG. 17 (b), according to another aspect of the present application, the color combining device 20 of the present application includes a color combining prism (Xcube) formed by gluing four isosceles right-angle prisms (i.e., a first prism 21, a second prism 22, a third prism 23, and a fourth prism 24), and three display chips (i.e., a first display chip 25, a second display chip 26, and a third display chip 27) respectively arranged on the three optical surface sides of the color combining prism. As an example, in this preferred embodiment of the present application, the first display chip 25 is a red light Micro LED display chip, the second display chip 26 is a green light Micro LED display chip, and the third display chip 27 is a blue light Micro LED display chip. The first display chip 25 is arranged on the outside of the first prism 21, the second display chip 26 is arranged on the outside of the second prism 22, and the third display chip is arranged on the outside of the third prism 23. The light emitted by the first display chip 25, the second display chip 26 and the third display chip 27 is refracted or reflected by the first prism 21, the second prism 22 and the third prism 23, and then emitted from one side of the fourth prism 24.
值得一提的是，所述RGB三色Micro LED显示芯片(即第一显示芯片25、第二显示芯片26以及第三显示芯片27)尺寸相等，皆为1.26英寸。可以理解的是，在本申请的该优选实施例中，所述显示芯片发出的光可以是RGB光或者其他类型的光，即所述显示芯片的具体类型和种类在此仅仅作为示例的，而非限制。It is worth mentioning that the RGB three-color Micro LED display chips (i.e., the first display chip 25, the second display chip 26, and the third display chip 27) are of equal size, all 1.26 inches. It is understandable that in this preferred embodiment of the present application, the light emitted by the display chip can be RGB light or other types of light, that is, the specific types and categories of the display chips are only used as examples, not limitations.
具体地说，所述第一显示芯片25被贴附在所述第一棱镜21的外侧面，所述第二显示芯片26被贴附在所述第二棱镜22的外侧面，所述第三显示芯片27被贴附在所述第三棱镜23的外侧面。Specifically, the first display chip 25 is attached to the outer side of the first prism 21 , the second display chip 26 is attached to the outer side of the second prism 22 , and the third display chip 27 is attached to the outer side of the third prism 23 .
在一些实施例中，所述合色装置20进一步包括红光反射膜28及蓝光反射膜29，其中所述红光反射膜28及蓝光反射膜29被设置在所述合色棱镜的胶合面，所述红光反射膜28会反射界面处的大部分红光，透射绿光和蓝光。所述蓝光反射膜29会反射界面处的大部分蓝光，透过绿光和红光。In some embodiments, the color combining device 20 further includes a red light reflecting film 28 and a blue light reflecting film 29, wherein the red light reflecting film 28 and the blue light reflecting film 29 are disposed on the bonding surface of the color combining prism, and the red light reflecting film 28 reflects most of the red light at the interface and transmits green light and blue light. The blue light reflecting film 29 reflects most of the blue light at the interface and transmits green light and red light.
在本申请的该优选实施例中，所述红光反射膜28和所述蓝光反射膜29以镀膜的方式形成在所述合色棱镜的胶合面，即在所述第一棱镜21和在第二棱镜22的胶合面以及所述第三棱镜23和所述第四棱镜24的胶合面处镀有所述红光反射膜28，在所述第二棱镜22和所述第三棱镜23以及第一棱镜21和所述第四棱镜24的胶合面处镀有所述蓝光反射膜29。In this preferred embodiment of the present application, the red light reflecting film 28 and the blue light reflecting film 29 are formed on the bonding surfaces of the color combining prisms in a coating manner, that is, the red light reflecting film 28 is coated on the bonding surfaces of the first prism 21 and the second prism 22 and the bonding surfaces of the third prism 23 and the fourth prism 24, and the blue light reflecting film 29 is coated on the bonding surfaces of the second prism 22 and the third prism 23 and the first prism 21 and the fourth prism 24.
如图17(b)所示，其示出了所述合色装置20合光的光路，其中三个所述显示芯片被设置在胶合棱镜的三个面上，其中第一显示芯片25与第三显示芯片27分别被设置在所述合色棱镜的上下两个侧面，并分别与红光反射膜28(RMD)和与所述蓝光反射膜29(BMD)互相对应。所述第一显示芯片25发出的红光经所述第一棱镜21被所述红光反射膜28反射，即图中的红光5，6；所述第三显示芯片27发出的蓝光被所述蓝光反射膜29反射，即图中的蓝光1，2，反射的红光和蓝光光线从所述第四棱镜24出射，即光线7,8两个光线所示的方向，从合色棱镜的左侧出射。As shown in FIG. 17( b ), it shows the optical path of the light combined by the color combining device 20, wherein the three display chips are arranged on the three surfaces of the glued prism, wherein the first display chip 25 and the third display chip 27 are respectively arranged on the upper and lower sides of the color combining prism, and correspond to the red light reflecting film 28 (RMD) and the blue light reflecting film 29 (BMD) respectively. The red light emitted by the first display chip 25 is reflected by the red light reflecting film 28 through the first prism 21, i.e., red light 5, 6 in the figure; the blue light emitted by the third display chip 27 is reflected by the blue light reflecting film 29, i.e., blue light 1, 2 in the figure, and the reflected red light and blue light are emitted from the fourth prism 24, i.e., the direction shown by the two light rays 7 and 8, and are emitted from the left side of the color combining prism.
第二显示芯片26被设置在所述合色棱镜的侧面上，其中所述第二显示芯片26发出的滤光可穿过所述红光反射膜28和所述蓝光反射膜29，即图中所述第二显示芯片26出射的绿光3，4可直接透过BMD和RMD，沿着7，8光线的方向，从合色棱镜的左侧出射。可以理解的是，最终由所述第一显示芯片25、所述第二显示芯片26以及所述第三显示芯片27出射的光，再经所述合色棱镜出射将同时具有RGB三色。The second display chip 26 is arranged on the side of the color combining prism, wherein the filtered light emitted by the second display chip 26 can pass through the red light reflecting film 28 and the blue light reflecting film 29, that is, the green light 3, 4 emitted by the second display chip 26 in the figure can directly pass through BMD and RMD, and be emitted from the left side of the color combining prism along the direction of light 7, 8. It can be understood that the light emitted by the first display chip 25, the second display chip 26 and the third display chip 27 will have three colors of RGB at the same time after being emitted through the color combining prism.
可以理解的是，虽然图中仅示意性画出了两根出射光线7,8，从RGB芯片出射的一定角度范围内的所有光线，都将按照上述7,8光线的合色规则，呈彩色从棱镜左侧出射。需要说明的是上述光线1、2、3、4、5、6、7、8仅仅代表的是由显示芯片发出的It is understandable that although only two outgoing light rays 7 and 8 are schematically drawn in the figure, all light rays within a certain angle range emitted from the RGB chip will be emitted from the left side of the prism in color according to the color combination rules of the above-mentioned 7 and 8 light rays. It should be noted that the above-mentioned light rays 1, 2, 3, 4, 5, 6, 7, and 8 only represent the light rays emitted by the display chip.
需要说明的是，同时由于第一显示芯片25与第三显示芯片27的光线光路，经过镜像转折之后可以与所述第二显示芯片26完全重合一致，故在下述的实施例及其附图中，仅以所述第二显示芯片26的光线光路简化展示，不加赘述。It should be noted that, since the light paths of the first display chip 25 and the third display chip 27 can completely coincide with the second display chip 26 after mirroring, in the following embodiments and drawings, only the light path of the second display chip 26 is simplified and not elaborated.
依照本申请的另一方发明，本申请进一步提供一种合色光机模组，其中所述合色光机模组包括如上所述的透镜系统10和合色装置20，其中所述合色光机模组中，所述透镜系统的所述第一透镜12靠近物侧的外侧表面至合色装置的所述显示芯片面，于光轴上的距离为T，其满足下列条件：According to another invention of the present application, the present application further provides a color combining optical machine module, wherein the color combining optical machine module comprises the lens system 10 and the color combining device 20 as described above, wherein in the color combining optical machine module, the distance between the outer surface of the first lens 12 of the lens system close to the object side and the display chip surface of the color combining device on the optical axis is T, which satisfies the following conditions:
10.5(毫米)<T<12.5(毫米)10.5(mm)<T<12.5(mm)
0.46(毫米)<|D/T|<0.56(毫米)0.46(mm)<|D/T|<0.56(mm)
当距离T，D/T满足上述条件时,有助于控制系统的总长度，维持合色棱镜小型化，也有助于系统光线于芯片面上呈远心，提升合色光机模组光效。When the distance T and D/T meet the above conditions, it helps to control the total length of the system, maintain the miniaturization of the color-combining prism, and also helps the system light to be telecentric on the chip surface, thereby improving the light efficiency of the color-combining optical machine module.
实施例1Example 1
如图1至图4所示，在本申请的该优选实施例中，所述透镜系统10的焦距为f，接收光的入瞳直径为EPD，接收光信号的最大视场半角为HFOV，其数值如下：f＝6.005mm、EPD＝3.7mm、HFOV＝15deg。As shown in Figures 1 to 4, in this preferred embodiment of the present application, the focal length of the lens system 10 is f, the entrance pupil diameter of the received light is EPD, and the maximum field of view half angle of the received light signal is HFOV, and its values are as follows: f=6.005mm, EPD=3.7mm, HFOV=15deg.
所述合色光机模组的条件式具体数值如下：The specific values of the conditional formula of the color combination light machine module are as follows:
|f3/f4|＝2.12|f3/f4|＝2.12
1/f2+1/f3+1/f4＝-0.081/f2+1/f3+1/f4=-0.08
|f1/f|＝1.066|f1/f|＝1.066
|R2/R1|＝2.386|R2/R1|＝2.386
|R4/R3|＝3.095|R4/R3|＝3.095
D＝5.842D＝5.842
T＝11.491T＝11.491
|D/T|＝0.508|D/T|＝0.508
如下列表1以及表2所示，As shown in Table 1 and Table 2 below,
表1Table 1
表2Table 2
可以理解的是，表1为图1实施例1详细的结构数据，其中曲率半径、厚度及焦距的单位为mm，且表面0-11依序表示由物侧至像侧的表面。表2为实施例1中的非球面数据，其中K表示非球面曲线方程式中的锥面系数，A4-A18则表示各表面第4-18阶非球面系数。此外，以下各实施例表格乃对应各实施例的示意图与像差曲线图，表格中数据的定义皆与实施例1的表1和表2的定义相同，在此不加赘述。It can be understood that Table 1 is the detailed structural data of Example 1 of FIG. 1, wherein the units of the radius of curvature, thickness and focal length are mm, and surfaces 0-11 represent the surfaces from the object side to the image side in sequence. Table 2 is the aspheric surface data in Example 1, wherein K represents the cone coefficient in the aspheric curve equation, and A4-A18 represents the 4th to 18th order aspheric surface coefficients of each surface. In addition, the following tables of the embodiments correspond to the schematic diagrams and aberration curves of the embodiments, and the definitions of the data in the tables are the same as those in Tables 1 and 2 of Example 1, and are not repeated here.
实施例2Example 2
如图5至图8所示，在本申请的该优选实施例中，所述透镜系统10的焦距为f，接收光的入瞳直径为EPD，接收光信号的最大视场半角为HFOV，其数值如下：f＝5.644mm、EPD＝3.5mm、HFOV＝16deg。As shown in Figures 5 to 8, in this preferred embodiment of the present application, the focal length of the lens system 10 is f, the entrance pupil diameter of the received light is EPD, and the maximum field of view half angle of the received light signal is HFOV, and its values are as follows: f=5.644mm, EPD=3.5mm, HFOV=16deg.
本实施例的所述合色光机模组的条件式具体数值如下：The specific values of the conditional formula of the color combination light machine module of this embodiment are as follows:
|f3/f4|＝1.755|f3/f4|＝1.755
1/f2+1/f3+1/f4＝-0.071/f2+1/f3+1/f4=-0.07
|f1/f|＝1.084|f1/f|＝1.084
|R2/R1|＝2.742|R2/R1|＝2.742
|R4/R3|＝8.473|R4/R3|＝8.473
D＝5.717D＝5.717
T＝10.966T＝10.966
|D/T|＝0.521|D/T|＝0.521
如下列表3以及表4所示，As shown in Table 3 and Table 4 below,
表3Table 3
表4Table 4
实施例3Example 3
如图9至图12所示，在本申请的该优选实施例中，所述透镜系统10的焦距为f，接收光的入瞳直径为EPD，接收光信号的最大视场半角为HFOV，其数值如下：f＝6.466mm、EPD＝4.0mm、HFOV＝14deg。As shown in Figures 9 to 12, in this preferred embodiment of the present application, the focal length of the lens system 10 is f, the entrance pupil diameter of the received light is EPD, and the maximum field of view half angle of the received light signal is HFOV, and its values are as follows: f=6.466mm, EPD=4.0mm, HFOV=14deg.
本实施例的所述合色光机模组的条件式具体数值如下：|f3/f4|＝2.058The specific values of the conditional formula of the color combination light engine module of this embodiment are as follows: |f3/f4|=2.058
1/f2+1/f3+1/f4＝-0.081/f2+1/f3+1/f4=-0.08
|f1/f|＝0.986|f1/f|＝0.986
|R2/R1|＝3.142|R2/R1|＝3.142
|R4/R3|＝7.180|R4/R3|＝7.180
D＝6.34T＝11.432D＝6.34T＝11.432
|D/T|＝0.555|D/T|＝0.555
如下列表5以及表6所示，表5As shown in Table 5 and Table 6 below, Table 5
表6Table 6
实施例4Example 4
如图13至图16所示，在本申请的该优选实施例中，所述透镜系统10的焦距为f，接收光的入瞳直径为EPD，接收光信号的最大视场半角为HFOV，其数值如下：f＝6.061mm、EPD＝3.7mm、HFOV＝15deg。As shown in Figures 13 to 16, in this preferred embodiment of the present application, the focal length of the lens system 10 is f, the entrance pupil diameter of the received light is EPD, and the maximum field of view half angle of the received light signal is HFOV, and its values are as follows: f=6.061mm, EPD=3.7mm, HFOV=15deg.
本实施例的所述合色光机模组的条件式具体数值如下：The specific values of the conditional formula of the color combination light machine module of this embodiment are as follows:
|f3/f4|＝1.501|f3/f4|＝1.501
1/f2+1/f3+1/f4＝-0.1021/f2+1/f3+1/f4=-0.102
|f1/f|＝1.015|f1/f|＝1.015
|R2/R1|＝1.336|R2/R1|＝1.336
|R4/R3|＝2.238|R4/R3|＝2.238
D＝5.938D＝5.938
T＝12.1T＝12.1
|D/T|＝0.49|D/T|＝0.49
如下列表7以及表8所示，As shown in Table 7 and Table 8 below,
表7Table 7
表8Table 8
参照本申请说明书附图之图18所示，依照本申请另一方面的一种AR装置在接下来的描述中被阐明。所述AR装置可以但不限于AR眼镜，其中所述AR装置包括整机支架1、被设置在所述整机支架1的至少一波导显示系统2、相机及空间传感器3、计算单元4以及位置传感器5。所述计算单元4与所述波导显示系统2、所述相机及空间传感器3以及所述位置传感器5电连接，其不仅可以为所述波导显示系统2提供图像信号，还可以与所述相机及空间传感器3，位置传感器5通信。在本申请的该优选实施例中，所述波导显示系统2的数量为二，即所述波导显示系统2包括左眼波导显示系统210和右眼波导显示系统220，其中所述左眼波导显示系统210安装在所述整机支架1的左侧，其对应于佩戴者的左眼，所述右眼波导显示系统220被安装在所述整机支架1的右侧，其对应佩戴者的右眼。Referring to FIG. 18 of the accompanying drawings of the present application, an AR device according to another aspect of the present application is explained in the following description. The AR device may be, but is not limited to, AR glasses, wherein the AR device includes a whole machine support 1, at least one waveguide display system 2, a camera and a spatial sensor 3, a computing unit 4, and a position sensor 5 arranged on the whole machine support 1. The computing unit 4 is electrically connected to the waveguide display system 2, the camera and the spatial sensor 3, and the position sensor 5, which can not only provide image signals for the waveguide display system 2, but also communicate with the camera and the spatial sensor 3 and the position sensor 5. In this preferred embodiment of the present application, the number of the waveguide display systems 2 is two, that is, the waveguide display system 2 includes a left-eye waveguide display system 210 and a right-eye waveguide display system 220, wherein the left-eye waveguide display system 210 is installed on the left side of the whole machine support 1, which corresponds to the left eye of the wearer, and the right-eye waveguide display system 220 is installed on the right side of the whole machine support 1, which corresponds to the right eye of the wearer.
值得一提的是，在本申请的该优选实施例中，所述波导显示系统2包括如上任一实施例所述的合色光机模组和位于所述合色光机模组光入射端的光波导片，其中所述合色光机模组中的微显示器显示图像，经过投影镜头输入到所述左眼波导显示系统220和所述右眼波导显示系统210对应的所述光波导片的光栅工作区(即图中1和2对应的区域)，经过系列光传输进入人眼。光波导镜片具有较高的透射率让用户清楚观察真实世界。It is worth mentioning that in this preferred embodiment of the present application, the waveguide display system 2 includes a color combination optical engine module as described in any of the above embodiments and an optical waveguide sheet located at the light incident end of the color combination optical engine module, wherein the micro display in the color combination optical engine module displays an image, which is input to the grating working area (i.e., the area corresponding to 1 and 2 in the figure) of the optical waveguide sheet corresponding to the left-eye waveguide display system 220 and the right-eye waveguide display system 210 through a projection lens, and enters the human eye through a series of light transmissions. The optical waveguide lens has a high transmittance, allowing users to clearly observe the real world.
值得一提的是，所述相机及空间传感器3可以是RGB相机、单色相机、眼球追踪传感器和深度相机的组合，RGB或单色相机可以获取真实场景中的环境画面，眼球追踪传感器可以实现眼球追踪的功能，深度相机可以获取场景的深度信息，实现人脸与手势识别等功能。所述位置传感器5可以是加速度计、陀螺仪、磁力计和全球定位系统接收器的组合。当所述计算单元4处理来自位置传感器5的信号后，可以更准确地将虚拟画面叠加在真实环境中。It is worth mentioning that the camera and space sensor 3 can be a combination of an RGB camera, a monochrome camera, an eye tracking sensor and a depth camera. The RGB or monochrome camera can obtain the environment picture in the real scene, the eye tracking sensor can realize the eye tracking function, and the depth camera can obtain the depth information of the scene to realize functions such as face and gesture recognition. The position sensor 5 can be a combination of an accelerometer, a gyroscope, a magnetometer and a global positioning system receiver. After the computing unit 4 processes the signal from the position sensor 5, the virtual picture can be more accurately superimposed on the real environment.
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310213976.6ACN118605024A (en) | 2023-02-28 | 2023-02-28 | Color combination optical machine module and its lens system, color combination device and AR device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310213976.6ACN118605024A (en) | 2023-02-28 | 2023-02-28 | Color combination optical machine module and its lens system, color combination device and AR device |
| Publication Number | Publication Date |
|---|---|
| CN118605024Atrue CN118605024A (en) | 2024-09-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310213976.6APendingCN118605024A (en) | 2023-02-28 | 2023-02-28 | Color combination optical machine module and its lens system, color combination device and AR device |
| Country | Link |
|---|---|
| CN (1) | CN118605024A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119472040A (en)* | 2024-11-22 | 2025-02-18 | 歌尔光学科技有限公司 | Projection system and optical display device |
| CN119511539A (en)* | 2024-11-25 | 2025-02-25 | 歌尔光学科技有限公司 | AR lens module and optical display device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119472040A (en)* | 2024-11-22 | 2025-02-18 | 歌尔光学科技有限公司 | Projection system and optical display device |
| CN119511539A (en)* | 2024-11-25 | 2025-02-25 | 歌尔光学科技有限公司 | AR lens module and optical display device |
| Publication | Publication Date | Title |
|---|---|---|
| CN114047613B (en) | Optical system and projection device | |
| CN113204100B (en) | electronic device | |
| JP7406028B1 (en) | Optical system | |
| CN118605024A (en) | Color combination optical machine module and its lens system, color combination device and AR device | |
| TWI725283B (en) | Electronic device | |
| CN113189747B (en) | A fixed-focus lens | |
| TW202020499A (en) | Lens system, projection apparatus, detecting module and electronic device | |
| TWM633841U (en) | Optical lens set and head mounted electronic device | |
| CN113359277B (en) | Optical system and projection equipment | |
| CN115755410A (en) | VR equipment | |
| CN109709661A (en) | A cylindrical structured light projection device based on a panoramic annular belt projection objective lens | |
| CN116974082A (en) | Near-to-eye display optical device with adjustable diopter | |
| CN101430488A (en) | Projection type image display device | |
| CN111258053A (en) | Eyepiece lens and near-to-eye display system | |
| CN118707722A (en) | Optical system and head mounted display device | |
| CN105527713A (en) | Optical system used for virtual reality device | |
| CN111123481A (en) | An ultra-short-focus projection lens based on catadioptric optical lens | |
| CN107817593B (en) | Ultra-short focal projection lens | |
| CN211627938U (en) | Eyepiece lens and near-to-eye display system | |
| CN109683279A (en) | A kind of infrared confocal optical system of large aperture | |
| CN118884772A (en) | Three-color micro-projection optical system | |
| CN110286490A (en) | Augmented reality optical system based on free-form surface and optical waveguide | |
| TW201905533A (en) | Wide-angle projection lens | |
| CN217821053U (en) | Micro projection structure and near-eye display system | |
| CN211905862U (en) | Augmented reality optical device based on Fresnel lens and optical waveguide principle |
| 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 |