A humanoid eye lens

Abstract

The present invention discloses an anthropomorphic eye lens, comprising: a lens assembly, comprising, from the light information projection end to the image reception end, first through fourteenth lenses, each of which is a spherical lens with optical power; and an aperture, located at the light information projection end of the first lens. The distance between the aperture and the first lens on the optical axis, denoted as ST, satisfies the following conditions: 12 mm ≤ ST ≤ 13 mm. The lens assembly of the anthropomorphic eye lens comprises fourteen lenses, simplifying its structure and reducing its processing complexity, assembly steps, and adjustment difficulty.

Description

Technical Field

[0001] The present invention relates to the field of lens testing, and in particular to a humanoid eye lens. Background Art

[0002] In recent years, AR (Augmented Reality) technology has made significant progress. As a technology with great development potential, it has been widely used in many fields such as entertainment, education, and healthcare. As AR technology is deeply applied in various industries, the market demand for its related hardware equipment is also increasing.

[0003] As a key component in AR module performance testing, the humanoid eye lens must be designed to meet requirements such as high resolution, low distortion, and stable temperature drift control to ensure the stability and reliability of AR devices in various environments. Therefore, optimizing the performance and size of the humanoid eye lens has become a crucial factor influencing the further development of AR technology.

[0004] Therefore, designing a humanoid eye lens that can meet performance requirements and is smaller in size has important practical significance and market value. Summary of the Invention

[0005] An object of the present invention is to provide a humanoid eye lens, which has good stability and uniformity in imaging quality and a small total length.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a humanoid eye lens, comprising: a lens assembly, wherein the lens assembly includes, from a light information projection end to an image receiving end, first to fourteenth lenses in sequence, wherein the first to fourteenth lenses are all spherical lenses with optical power; an aperture, wherein the aperture is located at the light information projection end of the first lens; wherein the separation distance between the aperture and the first lens on the optical axis is denoted as ST and satisfies the following conditions: 12 mm ≤ ST ≤ 13 mm.

[0007] As a preference, the distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the focal length of the humanoid eye lens is recorded as f, which satisfies: 7≤TTL / f≤10.

[0008] As a preference, the distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the entrance pupil diameter of the human eye lens is recorded as EPD, which satisfies: 23≤TTL / EPD≤38.

[0009] As a preference, the distance between the side surface of the image receiving end of the fourteenth lens and the imaging plane on the optical axis is recorded as the optical back focal length BFL, and the entrance pupil diameter of the humanoid eye lens is recorded as EPD, which satisfies: 1.5≤BFL / EPD≤2.

[0010] As a preferred embodiment, the entrance pupil diameter of the humanoid eye lens is recorded as EPD, which satisfies: 8mm <EPD<10mm。

[0011] As a preference, the distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the imaging height of the humanoid eye lens is recorded as ImgH, satisfying: TTL / ImgH≤14.

[0012] As a preferred embodiment, the distance between the side of the image receiving end of the fourteenth lens of the humanoid eye lens and the imaging surface on the optical axis is recorded as the optical back focal length BFL, and the change of the optical back focal length BFL is recorded as , the humanoid eye lens meets the following requirements at an ambient temperature of 0°C to 45°C: ≤3μm.

[0013] As a preference, the maximum field of view angle of the anthropomorphic eye lens is recorded as FOV, which satisfies: FOV=43°.

[0014] As a preference, the aperture value of the anthropomorphic eye lens is recorded as Fno, which satisfies: -5.5≤Fno≤-2.

[0015] As a preference, each of the lenses satisfies the following conditions: the first lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the second lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave; the third lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the fourth lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is concave; the fifth lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave; the sixth lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is convex; the seventh lens has positive focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave The side surface of the receiving end is convex; the eighth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave; the ninth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; the tenth lens has negative optical focal power, the side surface of the light information projection end is concave, and the side surface of the image receiving end is concave; the eleventh lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; the twelfth lens has positive optical focal power, the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; the thirteenth lens has positive optical focal power, the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; the fourteenth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave.

[0016] As a preference, each of the lenses satisfies the following conditions: the first lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the second lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave; the third lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the fourth lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the fifth lens has positive focal power, the side surface of its light information projection end is convex, and the side surface of the image receiving end is convex; the sixth lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave; the seventh lens has negative focal power, the side surface of its light information projection end is concave, and the side surface of the image receiving end is concave The side surface of the receiving end is concave; the eighth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; the ninth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave; the tenth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; the eleventh lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; the twelfth lens has negative optical focal power, the side surface of the light information projection end is concave, and the side surface of the image receiving end is concave; the thirteenth lens has positive optical focal power, the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; the fourteenth lens has positive optical focal power, the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave.

[0017] As a preferred option, 20mm <f1<50mm;-30mm<f2<-10mm;20mm<f3<50mm;30mm<f4<50mm;-50mm<f5<-20mm;-70mm<f6<-30mm;50mm<f7<120mm;50mm<f8<120mm;30mm<f9<60mm;-20mm<f 10 <-10mm; 10mm <f 11 <40mm; 25mm <f 12 <40mm; 50mm <f 13 <70mm; 50mm <f 14 <70mm; among which f1 to f 14 are the focal lengths of the first lens to the fourteenth lens, respectively.

[0018] As a preferred option, 10mm <f1<30mm;-30mm<f2<-10mm;15mm<f3<35mm;50mm<f4<70mm;20mm<f5<30mm;-10mm<f6<0mm;-20mm<f7<-10mm;15mm<f8<35mm;30mm<f9<60mm;15mm<f10 <35mm; 15mm <f 11 <35mm; -20mm <f 12 <0mm; 20mm <f 13 <40mm; 80mm <f 14 <100mm; among which, f1 to f 14 are the focal lengths of the first lens to the fourteenth lens, respectively.

[0019] As a preferred embodiment, the side surface of the image receiving end of the second lens is glued to the side surface of the light information projecting end of the third lens, defining a first glued surface between the second lens and the third lens; the side surface of the image receiving end of the ninth lens is glued to the side surface of the light information projecting end of the tenth lens, defining a second glued surface between the ninth lens and the tenth lens.

[0020] As a preference, the side surface of the image receiving end of the fifth lens is glued to the side surface of the light information projecting end of the sixth lens, defining a third glued surface between the fifth lens and the sixth lens.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The lens group of the anthropomorphic eye lens includes fourteen lenses, which simplifies the structure of the anthropomorphic eye lens, helps to reduce the processing complexity of the anthropomorphic eye lens, reduces the assembly process of the anthropomorphic eye lens, and reduces the difficulty of adjusting the anthropomorphic eye lens.

[0023] (2) The aperture is located at the light information projection end of the first lens, which can limit the angle and intensity of the light incident on the lens group, which is beneficial to reduce the scattering and loss of light, thereby improving the utilization rate of light and enhancing the uniformity of light projection on the imaging surface.

[0024] (3) The distance ST between the aperture and the first lens on the optical axis satisfies 12 mm ≤ ST ≤ 13 mm, which allows for both the convenience of assembling the humanoid eye lens and its compatibility with the optical machine of the AR device in terms of spatial layout.

[0025] (4) The distance TTL between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis and the focal length f of the humanoid eye lens satisfy 7≤TTL / f≤10, which makes the structure of the humanoid eye lens more compact and helps to shorten the total length of the humanoid eye lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the humanoid eye lens of Example 1 of the present application.

[0027] Figure 2 This is the distortion curve of the humanoid eye lens of Example 1 of the present application.

[0028] Figure 3 This is the relative illumination curve of the humanoid eye lens of Example 1 of the present application.

[0029] Figure 4 This is the astigmatism curve of the humanoid eye lens of Example 1 of the present application.

[0030] Figure 5 This is the axial chromatic aberration curve of the humanoid eye lens of Example 1 of the present application.

[0031] Figure 6 MTF curve of the humanoid eye lens of Example 1 of the present application.

[0032] Figure 7 This is a schematic structural diagram of the humanoid eye lens of Example 2 of the present application.

[0033] Figure 8 This is the distortion curve of the humanoid eye lens of Example 2 of the present application.

[0034] Figure 9 This is the relative illumination curve of the humanoid eye lens of Example 2 of the present application.

[0035] Figure 10 This is the astigmatism curve of the humanoid eye lens of Example 2 of the present application.

[0036] Figure 11 This is the axial chromatic aberration curve of the humanoid eye lens of Example 2 of the present application.

[0037] Figure 12 MTF curve of the humanoid eye lens of Example 2 of the present application.

[0038] In the figure: STO, aperture; E1, first lens; S2, side surface of the light information projecting end of the first lens; S3, side surface of the image receiving end of the first lens; E2, second lens; S4, side surface of the light information projecting end of the second lens; S5, side surface of the image receiving end of the second lens; E3, third lens; S6, side surface of the light information projecting end of the third lens; S7, side surface of the image receiving end of the third lens; E4, fourth lens; S8, side surface of the light information projecting end of the fourth lens; S9, side surface of the image receiving end of the fourth lens; E5, fifth lens; S10, side surface of the light information projecting end of the fifth lens; S11, side surface of the image receiving end of the fifth lens; E6, sixth lens; S12, side surface of the light information projecting end of the sixth lens; S13, side surface of the image receiving end of the sixth lens; E7, seventh lens; S14, side surface of the light information projecting end of the seventh lens; S15, side surface of the image receiving end of the seventh lens; E8, eighth lens; S16, side surface of the light information projecting end of the eighth lens; S17, The side surface of the image receiving end of the eighth lens; E9, the ninth lens; S18, the side surface of the light information projecting end of the ninth lens; S19, the side surface of the image receiving end of the ninth lens; E10, the tenth lens; S20, the side surface of the light information projecting end of the tenth lens; S21, the side surface of the image receiving end of the tenth lens; E11, the eleventh lens; S22, the side surface of the light information projecting end of the eleventh lens; S23, the side surface of the image receiving end of the eleventh lens; E12, the twelfth lens; S24, the side surface of the light information projecting end of the twelfth lens; S25, the side surface of the image receiving end of the twelfth lens; E13, the thirteenth lens; S26, the side surface of the light information projecting end of the thirteenth lens; S27, the side surface of the image receiving end of the thirteenth lens; E14, the fourteenth lens; S28, the side surface of the light information projecting end of the fourteenth lens; S29, the side surface of the image receiving end of the fourteenth lens; E15, the fifteenth lens; S30, the side surface of the light information projecting end of the fifteenth lens; S31, the side surface of the image receiving end of the fifteenth lens. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] A humanoid eye lens, such as Figure 1 and Figure 7 As shown, it includes a lens group and an aperture STO. The lens group includes a first lens E1 to a fourteenth lens E14 in sequence from the light information projecting end to the image receiving end, wherein the first lens E1 to the fourteenth lens E14 are all spherical lenses with optical power; the lens aperture STO is located at the light information projecting end of the first lens E1; wherein the distance between the aperture STO and the first lens E1 on the optical axis is recorded as ST, and satisfies the following: 12mm≤ST≤13mm.

[0041] It should be understood that the lens assembly of the humanoid eye lens contains fourteen lenses. Compared with the humanoid eye lens in the related art, the humanoid eye lens of the present application has fewer lenses, thereby simplifying the structure of the humanoid eye lens, which is conducive to reducing the processing complexity of the humanoid eye lens, reducing the assembly process of the humanoid eye lens, and reducing the difficulty of adjusting the humanoid eye lens. It is worth mentioning that during the use of the humanoid eye lens, the smaller number of lenses also helps to reduce the risk of failure of the humanoid eye lens due to interaction between lenses, thereby facilitating the long-term and stable use of the humanoid eye lens in AR device testing, reducing the replacement frequency of the humanoid eye lens, and reducing the maintenance cost of the humanoid eye lens.

[0042] Furthermore, the aperture STO is located at the light information projection end of the first lens E1, which can limit the angle and intensity of the light incident on the lens group, which is beneficial to reduce the scattering and loss of light, thereby improving the utilization rate of light and enhancing the projection uniformity of light on the imaging surface, thereby providing support for the imaging quality of the humanoid eye lens.

[0043] It should be understood that in actual testing, the advance placement of the aperture STO can help reduce the impact of the exit pupil position of the AR device's optical machine or light changes on the final imaging quality, thereby improving the accuracy of image brightness, chromaticity, and contrast detection of the AR device, providing a reliable basis for the research and development and quality control of AR devices.

[0044] In addition, the front-positioned aperture STO can make the entrance pupil of the anthropomorphic eye lens consistent with or close to the position of the entrance pupil of the human eye when the human eye is viewing, thereby simulating the entrance pupil of the human eye, so that the measurement system with the anthropomorphic eye lens can measure the optical machine of the AR device under the same conditions as human observers, which is conducive to collecting the complete field of view for more comprehensive testing of the display performance of the AR device. This can make the visual effect of the AR device closer to actual needs, provide a basis for the quality control of the AR device, and improve the user experience when using the AR device.

[0045] Furthermore, the spacing ST between the aperture STO and the first lens E1 on the optical axis satisfies 12mm≤ST≤13mm, which allows for both the ease of assembly of the humanoid eye lens and compatibility with the optical machine of the AR device in terms of spatial layout. It should be understood that when ST satisfies 12mm≤ST≤13mm, it is beneficial to avoid the spacing between the aperture STO and the first lens E1 being too small, which can reduce the difficulty of assembling the aperture STO and reduce the risk of collision and damage to the aperture STO and the first lens E1 during assembly. At the same time, when ST satisfies 12mm≤ST≤13mm, it is possible to reduce the obstruction of light by the aperture STO and help avoid the problem of uneven light caused by the aperture STO, thereby improving light utilization and projection uniformity, making the imaging quality of the humanoid eye lens more stable and uniform. In addition, when ST satisfies 12mm≤ST≤13mm, it is conducive to adapting to the exit pupil of various optical machines, thereby expanding the scope of application of the humanoid eye lens. In actual applications, it can facilitate the testing of AR devices.

[0046] In some embodiments, the distance between the side surface S2 of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the focal length of the humanoid eye lens is recorded as f, which satisfies: 7≤TTL / f≤10, which is conducive to reasonably controlling the propagation path of light. While ensuring the imaging quality, it makes the structure of the humanoid eye lens more compact, which is conducive to shortening the total length of the humanoid eye lens and realizing the miniaturization and lightweight of the humanoid eye lens.

[0047] In some embodiments, the distance between the side surface S2 of the light information projection end of the first lens and the imaging plane on the optical axis is denoted as TTL, and the entrance pupil diameter of the humanoid eye lens is denoted as EPD, satisfying the following relationship: 23 ≤ TTL / EPD ≤ 38. This allows the humanoid eye lens to have a more compact structure and a shorter overall length, thereby increasing the amount of light entering the humanoid eye lens and enhancing imaging capabilities in low-light environments. Furthermore, a smaller TTL reduces sensitivity to assembly tolerances between lenses, thereby enhancing the mechanical stability of the humanoid eye lens and reducing the difficulty of manufacturing and adjusting the humanoid eye lens.

[0048] In some embodiments, the distance between the side surface S2 of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the imaging height of the humanoid eye lens is recorded as ImgH, satisfying: TTL / ImgH≤14. On the basis of making the structure of the humanoid eye lens more compact and the total length shorter, the humanoid eye lens has a larger imaging area to cover a wider field of view and improve pixel resolution capability. In addition, the larger imaging height ImgH can provide a more uniform image surface resolution distribution, which is beneficial to avoid waste of edge pixels due to insufficient resolution.

[0049] In some embodiments, the distance between the side surface S27 of the image receiving end of the fourteenth lens and the imaging surface on the optical axis is denoted as the back focal length BFL of the humanoid eye lens, and the entrance pupil diameter of the humanoid eye lens is denoted as EPD, satisfying 1.5 ≤ BFL / EPD ≤ 2. On the basis of making the humanoid eye lens have a larger aperture, the back focal length BFL of the humanoid eye lens is reduced, so that the structure of the humanoid eye lens is more compact, which is conducive to the miniaturization and light weight of the humanoid eye lens.

[0050] It is worth mentioning that if BFL / EPD < 1.5, that is, the back focal length BFL is too short, it may increase the sensitivity of the assembly tolerance between the lens group and the imaging surface; if BFL / EPD > 2, that is, the back focal length BFL is too long, it may cause the mechanical stability of the humanoid eye lens to decline. In this application, by satisfying 1.5 ≤ BFL / EPD ≤ 2, the optical power of the lens group is reasonably distributed, which is conducive to avoiding defects such as astigmatism and field curvature caused by too short back focal length BFL, improving the edge image quality of the imaging of the humanoid eye lens, and improving the mechanical stability of the humanoid eye lens. In other words, by satisfying 1.5 ≤ BFL / EPD ≤ 2, the humanoid eye lens has a larger aperture while shortening the back focal length BFL, so that better imaging brightness can still be obtained under low light conditions.

[0051] In some embodiments, the entrance pupil diameter of the humanoid eye lens is denoted as EPD, satisfying 8mm < EPD < 10mm, which can increase the light input of the humanoid eye lens, thereby enhancing the imaging ability of the humanoid eye lens in a low light environment and improving the imaging quality.

[0052] In some embodiments, the distance between the side surface S27 of the image receiving end of the fourteenth lens of the humanoid eye lens and the imaging surface on the optical axis is denoted as the back focal length BFL of the optical system, and the change amount of the back focal length BFL is denoted as ΔBFL. The humanoid eye lens satisfies ΔBFL ≤ 3μm at an ambient temperature of 0°C to 45°C to reduce the influence of temperature drift on the imaging quality of the humanoid eye lens. It should be understood that in an optical system, the virtual image distance is closely related to the back focal length BFL. Even a slight change in the back focal length BFL will have a great impact on the virtual image distance. Therefore, the stability of the back focal length BFL is crucial for ensuring the accuracy of the virtual image distance. In the temperature range of 0°C to 45°C, the temperature drift of the back focal length BFL of the humanoid eye lens in this application is less than 3μm, which can reduce the influence of the temperature drift of the back focal length BFL on the imaging quality of the humanoid eye lens, thereby improving the data reliability when the humanoid eye lens tests an AR device, and is conducive to avoiding errors and product misjudgments in the AR device test caused by temperature changes, which can reduce the R & D cost of the AR device and shorten the R & D cycle.

[0053] In at least one embodiment, simulation software, such as CODEV software, is used to select the material of the lens so that the lens has a stable refractive index, can maintain the stability of the light propagation path when the ambient temperature fluctuates, and has good thermal conductivity. This can more quickly equalize the internal temperature of the humanoid eye lens, reduce changes in optical performance caused by local temperature differences, and thereby reduce the impact of temperature drift on the imaging quality of the humanoid eye lens.

[0054] In at least one embodiment, the anthropomorphic eye lens adopts a thermal compensation and optical balance design. Specifically, special optical materials cause the lens to expand or contract when the ambient temperature changes. The flexible connection structure in the anthropomorphic eye lens causes the lens to produce a slight displacement to adjust the positional relationship between each lens, thereby compensating for the optical parameter fluctuations caused by the thermal expansion and contraction of the lens, thereby making the structure of the anthropomorphic eye lens more stable, and being able to maintain stable imaging quality in AR device tests at different temperatures, thereby improving the reliability of test data.

[0055] In some embodiments, the maximum field of view of the humanoid eye lens, denoted as FOV, satisfies FOV = 43°. This helps reduce distortion, thereby reducing the interference of image deformation produced by the humanoid eye lens on the test results of the AR device. This allows for more accurate evaluation of the AR device's image overlay accuracy and scene rendering realism. Furthermore, meeting FOV = 43° improves the angular resolution of the humanoid eye lens, thereby more reliably reflecting the performance of the AR device in complex scenarios, which helps improve the accuracy and effectiveness of the test.

[0056] In some embodiments, the aperture value of the humanoid eye lens is denoted as Fno, which satisfies: -5.5≤Fno≤-2, thereby generating negative spherical aberration to expand the depth of field range of the humanoid eye lens, so that the humanoid eye lens can clearly image the display content of the AR device at different distances; in addition, it is also beneficial to simulate the pupil adjustment characteristics of the human eye in the light and dark adaptation state, making the test structure more suitable for the actual usage scenarios of the AR device.

[0057] The following are two specific embodiments of the humanoid eye lens:

[0058] <Example 1>

[0059] like Figure 1As shown, the first lens E1 has a positive optical power. The side surface S2 of the light information projection end of the first lens is a convex surface, and the side surface S3 of the image receiving end of the first lens is a convex surface. The focal length range of the first lens E1 is 20mm < f1 < 50mm. It should be understood that the first lens E1 plays a role in initially converging light rays and adjusting the incident angle of light rays. Its positive optical power range is 20mm < f1 < 50mm, which is beneficial for collecting incident light rays within a larger angular range and creating favorable conditions for subsequent imaging. Moreover, it is beneficial for the light rays entering the humanoid eye lens to propagate along the preset optical path, thereby effectively capturing and initially focusing the light rays with different field angles.

[0060] The second lens E2 has a negative optical power. The side surface S4 of the light information projection end of the second lens is a concave surface, and the side surface S5 of the image receiving end of the second lens is a concave surface. The focal length range of the second lens E2 is -30mm < f2 < -10mm. It should be understood that the second lens E2 plays a role in diverging light rays. Through the cooperative action of the second lens E2 and the first lens E1, the divergence degree of light rays can be adjusted, and the propagation direction of light rays can be controlled, enabling the light rays to meet the imaging requirements of subsequent lenses. It is worth mentioning that the negative optical power range of the second lens E2 is -30mm < f2 < -10mm, which is beneficial for balancing aberrations such as spherical aberration and coma generated during the propagation of light rays, thereby improving the clarity and accuracy of the imaging of the humanoid eye lens. Especially in the peripheral region of the field of view, it is beneficial for reducing the influence of aberrations on the imaging quality.

[0061] The third lens E3 has a positive optical power. The side surface S6 of the light information projection end of the third lens is a convex surface, and the side surface S7 of the image receiving end of the third lens is a convex surface. The focal length range of the third lens E3 is 20mm < f3 < 50mm. It should be understood that the third lens E3 provides the main optical power. That is to say, through the cooperative action of the third lens E3, the first lens E1 with positive optical power, the second lens E2 with relatively weak negative optical power, and the fourth lens E4, the receiving angle range of the humanoid eye lens for incident light rays can be increased, and the outgoing angle corresponding to the central light rays of the humanoid eye lens can be reduced, thereby improving the utilization rate of light rays, enabling more light rays to be more accurately focused on the imaging surface, and further increasing the light flux passing through the humanoid eye lens. In this way, sufficient light information can be obtained from the AR device during the test, and the imaging performance of the AR device can be evaluated more accurately.

[0062] Among them, the side S5 of the second lens image receiving end is adhesively connected to the side S6 of the third lens optical information projecting end, defining a first adhesive surface between the second lens E2 and the third lens E3. That is to say, the second lens E2 and the third lens E3 form a doublet lens, which is beneficial to correcting chromatic aberration, making the focusing of the humanoid eye lens on different colors of light more accurate. When testing the image color restoration degree of the AR device, it is beneficial to make the color of the imaging surface more natural and accurate; in addition, it can also balance aberrations such as spherical aberration and coma, enabling the humanoid eye lens to clearly image at a large field angle and the image shape to be undistorted. At the same time, it can optimize the light propagation path and improve the light utilization rate.

[0063] The fourth lens E4 has a positive optical power. The side S8 of the fourth lens optical information projecting end is a convex surface, and the side S9 of the fourth lens image receiving end is a concave surface. The positive optical power range of the fourth lens E4 is 30mm < f4 < 50mm. It should be understood that the fourth lens E4 plays a role in further adjusting the light angle and focusing the light. Through the cooperative action of the fourth lens E4 and other lenses, the refraction and propagation direction of the light can be more precisely controlled, enabling the light to be more accurately focused on the imaging surface; in addition, it is also beneficial to balance aberrations, reduce aberrations such as spherical aberration and coma of the humanoid eye lens, and thus improve the clarity and resolution of the imaging, enabling the humanoid eye lens to obtain high-quality imaging at different field angles.

[0064] The fifth lens E5 has a negative optical power. The side S10 of the fifth lens optical information projecting end is a concave surface, and the side S11 of the fifth lens image receiving end is a concave surface. The focal length range of the fifth lens E5 is -50mm < f5 < -20mm. It should be understood that the fifth lens E5 plays a role in further diverging and adjusting the light, enabling the divergence degree and propagation direction of the light to be controlled, thereby optimizing the light propagation path. Through the cooperative action of the fifth lens E5 and other lenses, aberrations can be corrected, making the propagation of light in the humanoid eye lens more uniform and stable, and thus improving the imaging quality. Especially when testing the complex light scene or large field angle imaging of the AR device, the fifth lens E5 is beneficial to improving the accuracy and clarity of the humanoid eye lens imaging.

[0065] The sixth lens E6 has a negative optical power. The side S12 of the light information projection end of the sixth lens is concave, and the side S13 of the image receiving end of the sixth lens is convex. The focal length range of the sixth lens E6 is -70mm < f6 < -30mm. It should be understood that the sixth lens E6 plays a role in finely adjusting the light, enabling the control of the divergence degree and propagation direction of the light. Through the synergistic effect of the sixth lens E6 and other lenses, the distribution of the light can be further optimized, the loss of the light during propagation can be reduced, and the utilization rate of the light can be improved. In addition, it is also possible to compensate for and correct aberrations such as spherical aberration and coma, thereby improving the clarity and accuracy of imaging. Especially in the peripheral field of view region, the imaging quality can be improved, making the imaging effect within the entire field of view more uniform and consistent.

[0066] The seventh lens E7 has a positive optical power. The side S14 of the light information projection end of the seventh lens is concave, and the side S15 of the image receiving end of the seventh lens is convex. The focal length range of the seventh lens E7 is 50mm < f7 < 120mm. It should be understood that the seventh lens E7 plays a role in converging the light and adjusting the light angle. With the focal length range of the seventh lens E7 being 50mm < f7 < 120mm, the light can be focused to a suitable position, providing a better basis for the imaging of subsequent lenses. Through the synergistic effect of the seventh lens E7 and other lenses, it is beneficial to improve the resolution of the humanoid eye lens and enhance the image contrast, thereby improving the imaging quality. In this way, when testing the AR device, the humanoid eye lens can present the image details more clearly.

[0067] The eighth lens E8 has a positive optical power. The side S16 of the light information projection end of the eighth lens is convex, and the side S17 of the image receiving end of the eighth lens is concave. The focal length range of the eighth lens E8 is 50mm < f8 < 120mm. It should be understood that the eighth lens E8 plays an effect of converging the light and adjusting the light angle. Through the synergistic effect of the seventh lens E7 and the eighth lens E8, the focusing effect of the light can be further optimized, and then the light can be focused more accurately on the imaging surface. Through the synergistic effect of the eighth lens E8 and other lenses, it is also possible to correct aberrations such as spherical aberration and coma of the humanoid eye lens, enabling the humanoid eye lens to obtain high-quality and stable imaging at different field angles.

[0068] The ninth lens E9 has a positive optical power. The side S18 of the light information projection end of the ninth lens is a convex surface, and the side S19 of the image receiving end of the ninth lens is a convex surface. The focal length range of the ninth lens E9 is 30mm < f9 < 60mm. It should be understood that the ninth lens E9 plays the role of converging light and adjusting the light angle, so as to further optimize the focusing effect of light, so that the light can be focused more accurately on the imaging surface. Through the synergistic effect of the ninth lens E9 and other lenses, the propagation path of light can be controlled more precisely, making the propagation of light in the humanoid eye lens more stable and uniform.

[0069] The tenth lens E10 has a negative optical power. The side S20 of the light information projection end of the tenth lens is a concave surface, and the side S21 of the image receiving end of the tenth lens is a concave surface. The focal length range of the tenth lens E10 is -20mm < f 10 < -10mm. It should be understood that the tenth lens E10 plays the role of diverging light and adjusting the angle. Through the synergistic effect of the tenth lens E10 and other lenses, the propagation path of light can be optimized, so that the distribution of light in the humanoid eye lens is more reasonable, thereby improving the clarity and accuracy of imaging.

[0070] Among them, the side S19 of the image receiving end of the ninth lens is adhesively connected to the side S20 of the light information projection end of the tenth lens, defining a second adhesive surface between the ninth lens E9 and the tenth lens E10. That is to say, the ninth lens E9 and the tenth lens E10 form a doublet lens to jointly balance aberrations such as spherical aberration and coma, and can also correct chromatic aberration, thereby improving the color accuracy of the humanoid eye lens, making the color on the imaging surface more real and natural, so as to improve the accuracy of the color reproduction test of the humanoid eye lens for AR devices. Especially when testing the complex light scene or large field of view imaging of AR devices, the imaging quality can be further improved through the doublet lens structure.

[0071] The eleventh lens E11 has a positive optical power. The side S22 of the light information projection end of the eleventh lens is a convex surface, and the side S23 of the image receiving end of the eleventh lens is a convex surface. The focal length range of the eleventh lens E11 is 10mm < f 11 < 40mm. It should be understood that the eleventh lens E11 plays the role of converging light and adjusting the light angle, making the light focus more precisely on the imaging surface, thereby improving the clarity and accuracy of imaging. Through the synergistic effect of the eleventh lens E11 and the first lens E1 to the tenth lens E10, the light can be finely adjusted, thereby optimizing the propagation path of light and improving the utilization rate of light. Through the mutual cooperation of the eleventh lens E11 and other lenses, it can play a role in compensating and correcting aberrations such as spherical aberration and coma, and then make the entire field of view have a high imaging quality, so that the humanoid eye lens can test the consistency of the imaging quality of different field of view angles of AR devices.

[0072] The twelfth lens E12 has positive optical power. The side surface S24 of the light information projection end of the twelfth lens is concave. The side surface S25 of the image receiving end of the twelfth lens is convex. The focal length range of the twelfth lens E12 is 25 mm. <f 12 <40mm. It should be understood that the twelfth lens E12 plays the role of converging light and adjusting the angle of light. Through the synergistic effect of the twelfth lens E12 and other lenses, the clarity and contrast of the image are improved, thereby improving the imaging quality.

[0073] The thirteenth lens E13 has positive optical power, the side surface S26 of the light information projection end of the thirteenth lens is concave, the side surface S27 of the image receiving end of the thirteenth lens is convex, and the focal length range of the thirteenth lens E13 is 50mm <f 13 <70mm. It should be understood that the thirteenth lens E13 focuses and adjusts the angle of light, correcting aberrations and balancing chromatic aberration. The synergistic effect of the thirteenth lens E13 and the other lenses improves the color accuracy of the human-eye lens's imaging, rendering images more realistic and natural. Furthermore, the thirteenth lens E13 contributes to the overall stability and reliability of the human-eye lens, ensuring that it maintains excellent imaging performance over long-term use.

[0074] Among them, the twelfth lens E12 and the thirteenth lens E13 are combined lenses. By gluing or setting a specific interval, they can further correct aberrations, improve the stability and accuracy of the human eye lens imaging, and thus facilitate obtaining reliable test results under different test environments.

[0075] The fourteenth lens E14 has positive focal power. The side surface S28 of the light information projection end of the fourteenth lens is convex. The side surface S29 of the image receiving end of the fourteenth lens is concave. The focal length range of the fourteenth lens S14 is 50mm. <f 14 <70mm. It should be understood that the fourteenth lens element E14 converges and adjusts the light's angle in the final stage of light propagation, allowing it to more precisely focus on the imaging surface, thereby improving image clarity and resolution. The synergistic effect of the fourteenth lens element E14 and the other lens elements optimizes the light propagation path, improves light utilization, and compensates for and corrects aberrations such as spherical aberration and coma. This ensures a high-quality field of view across the entire humanoid eye lens, providing a reliable optical foundation for accurately evaluating the performance of AR devices.

[0076] The fifteenth lens element E15 is made of flat glass, meaning that both the side surface S30 of the fifteenth lens element at the light information projection end and the side surface S31 of the fifteenth lens element at the image receiving end are flat. Positioned between the fourteenth lens element E14 and the imaging plane, the fifteenth lens element E15 protects the imaging plane, shielding it from dust particles, water stains, and other contaminants. This allows light to pass smoothly through the fifteenth lens element E15 and reach the imaging plane, minimizing the impact of the external environment on the imaging plane and image quality.

[0077] It is worth mentioning that the fifteenth lens E15 can use highly transparent, low-reflectivity optical materials, so that the fifteenth lens E15 can maintain good optical performance under various lighting conditions, providing stable and reliable protection for the lens group and imaging surface, thereby extending the service life of the humanoid eye lens, ensuring stability and reliability during the testing process, and reducing testing costs.

[0078] In this embodiment, the focal length f of the humanoid eye lens is -41 mm, the aperture value F is -5.1, the maximum field of view FOV is 43°, and the total length of the humanoid eye lens is 325 mm. Table 1 shows the basic parameters of the humanoid eye lens of Example 1.

[0079] Table 1 Basic parameters of the humanoid eye lens of Example 1

[0080]

[0081] Figure 2 The distortion curve of the humanoid eye lens of Example 1 is shown, which represents the distortion value corresponding to different field angles. Figure 2 It can be seen that the maximum distortion of the imaging of the human-eye-mimicking lens of this embodiment is less than 2%, which can more realistically simulate the visual effect of the human eye, thereby improving the reliability of the test results of the AR device.

[0082] Figure 3 The relative illumination curve of the humanoid eye lens of Example 1 is shown. Figure 3 As can be seen, the relative illumination curve remains high at different image heights, indicating high light transmittance and uniform image brightness across the entire field of view. In other words, the humanoid eye lens of this embodiment has high light utilization efficiency, providing stable and uniform lighting for AR device testing, enabling more accurate evaluation of AR device imaging performance.

[0083] Figure 4 The astigmatism curve of the human eye lens of Example 1 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 4It can be seen that the astigmatism curve fluctuates little in each field area, indicating good astigmatism control ability. It should be understood that astigmatism can cause inconsistent focusing in different directions during imaging, resulting in blurred and distorted images. However, through the design of the lens group, the humanoid eye lens in this embodiment can reduce astigmatism, thus clearly presenting image details during the test of the AR device, providing a more accurate basis for evaluating the imaging performance of the AR device.

[0084] Figure 5 Fig. shows the axial chromatic aberration curve of the humanoid eye lens of Embodiment 1. From Figure 5 it can be seen that the relative image height ratio differences of light rays with different wavelengths in the axial direction are small, indicating good chromatic aberration correction ability. It should be understood that chromatic aberration can cause defects such as colored edges and color distortion in images. However, through the design of the lens group and material selection of the humanoid eye lens in this embodiment, chromatic aberration can be well corrected to restore the image color, providing more reliable support for evaluating the color performance of the AR device.

[0085] Figure 6 Fig. shows the MTF (Modulation Transfer Function) curve of the humanoid eye lens of Embodiment 1. From Figure 6 it can be seen that at a spatial frequency of 80 lp / mm, the MTF value is approximately 0.60; at a spatial frequency of 140 lp / mm, the MTF value is approximately 0.35, indicating good resolution. It should be understood that the MTF value reflects the ability to resolve details. The higher the MTF value, the clearer the imaging. That is to say, the humanoid eye lens in this embodiment can present the image details of the AR device more clearly, thereby improving the accuracy of evaluating the imaging clarity of the AR device.

[0086] <Embodiment 2>

[0087] As Figure 7 shown, the first lens E1 has a positive optical power. The side S2 of the light information projection end of the first lens is a convex surface, and the side S3 of the image receiving end of the first lens is a convex surface. The focal length range of the first lens E1 is 10 mm < f1 < 30 mm. It should be understood that the first lens E1 plays a role in initially converging light rays and adjusting the incident angle of light rays, which is beneficial to making the light rays entering the lens system propagate along the preset optical path, thereby effectively capturing and initially focusing the light rays with different field angles.

[0088] The second lens E2 has a negative focal power. The light information projection end side surface S4 of the second lens is concave, the image receiving end side surface S5 of the second lens is concave, and the focal length range of the second lens E2 is -30 mm < f2 < -10 mm. It should be understood that the second lens E2 plays a role in diverging light. Through the synergistic effect of the second lens E2 and the first lens E1, the divergence degree of the light can be adjusted, the propagation direction of the light can be controlled, so that the light can meet the imaging requirements of the subsequent lenses. It is worth mentioning that the negative focal power range of the second lens E2 is -30 mm < f2 < -10 mm, which is beneficial to balancing aberrations such as spherical aberration and coma generated during the propagation of light, thereby being beneficial to improving the clarity and accuracy of the humanoid eye lens imaging, especially in the peripheral field of view area, and being beneficial to reducing the influence of aberrations on the imaging quality.

[0089] The third lens E3 has a positive focal power. The light information projection end side surface S6 of the third lens is convex, the image receiving end side surface S7 of the third lens is convex, and the focal length range of the third lens E3 is 15 mm < f3 < 35 mm. It should be understood that the third lens E3 can provide the main focal power. That is to say, through the synergistic effect of the third lens E3 and the first lens E1 with positive focal power, the second lens E2 with weaker negative focal power, and the fourth lens E4, the receiving angle range of the humanoid eye lens for incident light can be increased, and the outgoing light angle corresponding to the central light of the humanoid eye lens can be reduced, thereby improving the utilization rate of light, enabling more light to be focused more accurately on the imaging surface, and further increasing the light flux passing through the humanoid eye lens, so that sufficient light information can be obtained from the AR device during the test and the imaging performance of the AR device can be evaluated more accurately.

[0090] Among them, the image receiving end side surface S5 of the second lens is adhesively connected to the light information projection end side surface S6 of the third lens, defining a first adhesive surface between the second lens E2 and the third lens E3. That is to say, the second lens E2 and the third lens E3 form a doublet lens, which is beneficial to correcting chromatic aberration, making the humanoid eye lens focus different color lights more accurately, and also being able to balance aberrations such as spherical aberration and coma, enabling the humanoid eye lens to also be able to clearly image and the image shape not to be distorted at a large field angle, and at the same time being able to optimize the propagation path of light and improve the light utilization rate.

[0091] The fourth lens E4 has a positive optical power. The side S8 of the light information projection end of the fourth lens is convex, the side S9 of the image receiving end of the fourth lens is convex, and the focal length range of the fourth lens E4 is 50mm < f4 < 70mm. It should be understood that the fourth lens E4 plays a role in adjusting the light angle and focusing the light. Through the synergistic effect of the fourth lens E4 and other lenses, the refraction and propagation direction of the light can be controlled more precisely, so that the light can be focused more accurately on the imaging surface; in addition, it is also beneficial to balance aberrations, reduce aberrations such as spherical aberration and coma of the humanoid eye lens, and then improve the clarity and resolution of the imaging, so that the humanoid eye lens can obtain high-quality imaging at different field angles.

[0092] The fifth lens E5 has a positive optical power. The side S10 of the light information projection end of the fifth lens is convex, the side S11 of the image receiving end of the fifth lens is convex, and the focal length range of the fifth lens E5 is 20mm < f5 < 30mm. It should be understood that the fourth lens E4 plays a role in further focusing the light and adjusting the light angle. Through the synergistic effect of the fifth lens E5 and other lenses, the refraction and propagation direction of the light can be controlled more precisely, so that the light can be focused more accurately on the imaging surface; in addition, it is also beneficial to balance aberrations, reduce aberrations such as spherical aberration and coma of the humanoid eye lens, and then improve the clarity and resolution of the imaging.

[0093] The sixth lens E6 has a negative optical power. The side S12 of the light information projection end of the sixth lens is concave, the side S13 of the image receiving end of the sixth lens is concave, and the focal length range of the sixth lens E6 is -10mm < f6 < 0mm. It should be understood that the sixth lens E6 plays a role in fine-tuning the light, enabling the control of the divergence degree and propagation direction of the light. Through the synergistic effect of the sixth lens E6 and other lenses, the distribution of the light can be further optimized, the loss of the light during propagation can be reduced, and the utilization rate of the light can be improved; in addition, it is also possible to compensate and correct aberrations such as spherical aberration and coma, thereby improving the clarity and accuracy of the imaging. Especially in the peripheral region of the field of view, the imaging quality can be improved, making the imaging effect within the entire field of view more uniform.

[0094] Among them, the side S11 of the image receiving end of the fifth lens is adhesively connected to the side S12 of the light information projection end of the sixth lens, defining the third adhesive surface between the fifth lens E5 and the sixth lens E6. That is to say, the fifth lens E5 and the sixth lens E6 form a doublet lens, which is beneficial to correcting chromatic aberration, making the humanoid eye lens focus different color lights more accurately, and can also jointly balance aberrations such as spherical aberration and coma.

[0095] The seventh lens E7 has a negative optical power. The side S14 at the light information projection end of the seventh lens is concave, and the side S15 at the image receiving end of the seventh lens is concave. The focal length range of the seventh lens E7 is -20mm < f7 < -10mm. It should be understood that the seventh lens E7 can further adjust the divergence degree of light rays, control the propagation direction of light rays, and make the light rays meet the imaging requirements of subsequent lenses.

[0096] The eighth lens E8 has a positive optical power. The side S16 at the light information projection end of the eighth lens is convex, and the side S17 at the image receiving end of the eighth lens is convex. The focal length range of the eighth lens E8 is 15mm < f8 < 35mm. It should be understood that the eighth lens E8 has the effect of converging light rays and adjusting the light ray angle. Through the synergistic effect of the eighth lens E8 and other lenses, it is also possible to correct aberrations such as spherical aberration and coma of the humanoid eye lens, so that the humanoid eye lens can obtain high-quality and stable imaging at different field angles.

[0097] The ninth lens E9 has a positive optical power. The side S18 at the light information projection end of the ninth lens is convex, and the side S19 at the image receiving end of the ninth lens is concave. The focal length range of the ninth lens E9 is 30mm < f9 < 60mm. It should be understood that the ninth lens E9 has the effect of converging light rays and adjusting the light ray angle, and can further optimize the focusing effect of light rays, so that the light rays can be more accurately focused on the imaging surface. Through the synergistic effect of the ninth lens E9 and other lenses, it is possible to more precisely control the propagation path of light rays, making the propagation of light rays in the humanoid eye lens more stable and uniform.

[0098] The tenth lens E10 has a positive optical power. The side S20 at the light information projection end of the tenth lens is convex, and the side S21 at the image receiving end of the tenth lens is convex. The focal length range of the tenth lens E10 is 15mm < f 10 <35mm. It should be understood that the tenth lens E10 plays a role in further focusing light rays and adjusting the light ray angle. Through the synergistic effect of the tenth lens E10 and other lenses, it is possible to more precisely control the refraction and propagation direction of light rays, so that the light rays can be more accurately focused on the imaging surface.

[0099] Among them, the side S19 at the image receiving end of the ninth lens is adhesively connected to the side S20 at the light information projection end of the tenth lens, defining a second adhesive surface between the ninth lens E9 and the tenth lens E10. That is to say, the ninth lens E9 and the tenth lens E10 form a doublet lens to jointly balance aberrations such as spherical aberration and coma.

[0100] The eleventh lens E11 has a positive optical power. The side S22 at the light information projection end of the eleventh lens is convex, and the side S23 at the image receiving end of the eleventh lens is convex. The focal length range of the eleventh lens E11 is 15mm < f 11<35mm. It should be understood that the eleventh lens E11 plays the role of converging light and adjusting the angle of light, so that the light is more accurately focused on the imaging surface, thereby improving the clarity and accuracy of the imaging. Through the synergistic effect of the eleventh lens E11 and the first lens E1 to the tenth lens E10, the light can be finely adjusted, thereby optimizing the propagation path of the light and improving the utilization rate of the light. Through the mutual cooperation of the eleventh lens E11 and other lenses, aberrations such as spherical aberration and coma can be compensated and corrected, thereby achieving high imaging quality throughout the entire field of view. In this way, the humanoid eye lens can test the consistency of imaging quality of AR devices at different field angles.

[0101] The twelfth lens E12 has negative optical power. The side surface S24 of the light information projection end of the twelfth lens is concave. The side surface S25 of the image receiving end of the twelfth lens is concave. The focal length range of the twelfth lens E12 is -20mm. <f 12 <0mm. It should be understood that the twelfth lens E12 plays a role in finely adjusting the light, thereby controlling the divergence and propagation direction of the light. Through the synergistic effect of the twelfth lens E12 and other lenses, the distribution of light can be further optimized, the loss of light during the propagation process can be reduced, and the utilization rate of light can be improved.

[0102] The thirteenth lens E13 has positive optical power, the side surface S26 of the light information projection end of the thirteenth lens is concave, the side surface S27 of the image receiving end of the thirteenth lens is convex, and the focal length range of the thirteenth lens E13 is 20mm <f 13 <40mm. It should be understood that the thirteenth lens E13 focuses and adjusts the angle of light, correcting aberrations and balancing chromatic aberration. The synergistic effect of the thirteenth lens E13 and the other lenses improves the color accuracy of the human-eye lens's imaging, rendering images more realistic and natural. Furthermore, the thirteenth lens E13 contributes to the overall stability and reliability of the human-eye lens, ensuring that the lens maintains excellent imaging performance over long-term use.

[0103] The fourteenth lens E14 has positive optical power, the side surface S28 of the light information projection end of the fourteenth lens is convex, the side surface S29 of the image receiving end of the fourteenth lens is concave, and the focal length range of the fourteenth lens E14 is 80mm. <f 14<100mm. It should be understood that the fourteenth lens element E14 converges and adjusts the light's angle in the final stage of light propagation, allowing it to more precisely focus on the imaging surface, thereby improving image clarity and resolution. The synergistic effect of the fourteenth lens element E14 and the other lenses optimizes the light propagation path, improves light utilization, and compensates for and corrects aberrations such as spherical aberration and coma. This ensures a high-quality field of view across the entire humanoid eye lens, providing a reliable optical foundation for accurately evaluating the performance of AR devices.

[0104] The fifteenth lens element E15 is made of flat glass, meaning that both the side surface S30 of the fifteenth lens element at the light information projection end and the side surface S31 of the fifteenth lens element at the image receiving end are flat. Positioned between the fourteenth lens element E14 and the imaging plane, the fifteenth lens element E15 protects the imaging plane, shielding it from dust particles, water stains, and other contaminants. This allows light to pass smoothly through the fifteenth lens element E15 and reach the imaging plane, minimizing the impact of the external environment on the imaging plane and image quality.

[0105] In this embodiment, the focal length f of the humanoid eye lens is -24 mm, the aperture value F is -2.4, the maximum field of view angle FOV is 43°, and the total length of the humanoid eye lens is 230 mm. Table 2 shows the basic parameters of the humanoid eye lens of Example 2.

[0106] Table 2 Basic parameters of the humanoid eye lens of Example 2

[0107]

[0108] Figure 8 The distortion curve of the humanoid eye lens of Example 2 is shown, which represents the distortion value corresponding to different field angles. Figure 8 It can be seen that the maximum distortion of the imaging of the human-eye-mimicking lens of this embodiment is less than 2%, which can more realistically simulate the visual effect of the human eye, thereby improving the reliability of the test results of the AR device.

[0109] Figure 9 The relative illumination curve of the humanoid eye lens of Example 2 is shown. Figure 9 As can be seen, the relative illumination curve remains high at different image heights, indicating high light transmittance and uniform image brightness across the entire field of view. In other words, the humanoid eye lens of this embodiment has high light utilization efficiency, providing stable and uniform lighting for AR device testing, enabling more accurate evaluation of AR device imaging performance.

[0110] Figure 10 The astigmatism curve of the human eye lens of Example 2 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 10As can be seen, the astigmatism curve has minimal fluctuations across the field of view, demonstrating good astigmatism control. It should be understood that astigmatism can cause inconsistent focusing in different directions, leading to image blur and distortion. However, the humanoid eye lens of this embodiment, through the design of the lens assembly, reduces astigmatism, enabling clear image detail during AR device testing, providing a more accurate basis for evaluating AR device imaging performance.

[0111] Figure 11 The chromatic aberration curve on the image axis of the humanoid eye lens of Example 2 is shown. Figure 11 As can be seen, the relative image height ratios of light of different wavelengths along the axis are small, demonstrating good chromatic aberration correction. It should be understood that chromatic aberration can cause defects such as image color fringing and color distortion. The humanoid eye lens of this embodiment, through the design of the lens assembly and the selection of materials, effectively corrects chromatic aberration to restore image color, providing more reliable support for evaluating the color performance of AR devices.

[0112] Figure 12 The MTF curve of the humanoid eye lens of Example 2 is shown. Figure 12 As can be seen, at a spatial frequency of 80 lp / mm, the MTF value is approximately 0.60; at a spatial frequency of 140 lp / mm, the MTF value is approximately 0.24, indicating good resolution. It should be understood that the MTF value reflects the ability to resolve detail; higher MTF values ​​indicate clearer images. In other words, the humanoid eye lens of this embodiment can more clearly present image details in AR devices, thereby improving the accuracy of image clarity assessment for AR devices.

[0113] It is worth mentioning that the human eye is extremely sensitive to image distortion. The distortion of the humanoid eye lens of this application is less than 2%. Therefore, during the test process, the interference of the distortion of the humanoid eye lens on the test results can be reduced, which is conducive to accurately evaluating the image overlay accuracy and scene rendering realism of AR devices.

[0114] Furthermore, the humanoid eye lens of this application has a high angular resolution of approximately 227PPD, which is conducive to accurately evaluating the clarity and accuracy of the long-distance display of AR devices, reflecting the performance of AR devices in complex scenes, thereby improving the accuracy and effectiveness of AR device testing, and improving the quality of AR devices and user experience.

[0115] Furthermore, the humanoid eye lens of the present application has small distortion, small chromatic aberration, small temperature drift, high resolution, and high contrast. Therefore, when testing the AR device, it can obtain multiple data indicators from the captured image, such as the field of view angle, distortion, resolution and other information of the AR device, which is conducive to simplifying the testing process of the AR device and improving testing efficiency.

[0116] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A humanoid eye lens, characterized in that: include: a lens assembly, the lens assembly including, from the light information projection end to the image receiving end, a first lens to a fourteenth lens in sequence, wherein the first lens to the fourteenth lens are all spherical lenses having optical power, wherein the first lens, the third lens, the fourth lens, the eighth lens, the ninth lens, the eleventh lens, the thirteenth lens, and the fourteenth lens have positive optical power, and the second lens and the sixth lens have negative optical power; an aperture, the aperture being located at a light information projection end of the first lens; The distance between the aperture and the first lens on the optical axis is denoted as ST, which satisfies: 12 mm ≤ ST ≤ 13 mm.

2. The humanoid eye lens according to claim 1, characterized in that: The distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the focal length of the humanoid eye lens is recorded as f, which satisfies: 7≤TTL / f≤10.

3. The humanoid eye lens according to claim 1, characterized in that: The distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the entrance pupil diameter of the human eye lens is recorded as EPD, which satisfies the following: 23≤TTL / EPD≤38.

4. The humanoid eye lens according to claim 1, characterized in that: The distance between the side surface of the image receiving end of the fourteenth lens and the imaging surface on the optical axis is recorded as the optical back focal length BFL, and the entrance pupil diameter of the humanoid eye lens is recorded as EPD, which satisfies: 1.5≤BFL / EPD≤2.

5. The humanoid eye lens according to any one of claims 3-4, characterized in that: The entrance pupil diameter of the humanoid eye lens is recorded as EPD, which satisfies: 8mm <EPD<10mm。 6. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: The distance between the side surface of the light information projection end of the first lens and the imaging surface on the optical axis is recorded as TTL, and the imaging height of the humanoid eye lens is recorded as ImgH, which satisfies: TTL / ImgH≤14.

7. The humanoid eye lens according to claim 1, characterized in that: The distance between the side of the image receiving end of the fourteenth lens of the humanoid eye lens and the imaging surface on the optical axis is recorded as the optical back focal length BFL, and the change of the optical back focal length BFL is recorded as , the humanoid eye lens meets the following requirements at an ambient temperature of 0°C to 45°C: ≤3μm.

8. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: The maximum field of view of the anthropomorphic eye lens is recorded as FOV, which satisfies: FOV=43°.

9. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: The aperture value of the humanoid eye lens is recorded as Fno, which satisfies: -5.5≤Fno≤-2.

10. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: Each lens satisfies the following conditions: The first lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The second lens has a negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The third lens has positive optical power, and its light information projection side is convex, and its image receiving side is also convex; The fourth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave; The fifth lens has negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The sixth lens has a negative optical power, and its light information projection side surface is concave, and its image receiving side surface is convex; The seventh lens has positive optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; The eighth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave; The ninth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The tenth lens has negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The eleventh lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The twelfth lens has positive optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; The thirteenth lens has positive optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; The fourteenth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave.

11. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: Each lens satisfies the following conditions: The first lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The second lens has a negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The third lens has positive optical power, and its light information projection side is convex, and its image receiving side is also convex; The fourth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The fifth lens has positive optical power, and its light information projection side is convex, and its image receiving side is also convex; The sixth lens has negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The seventh lens has negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The eighth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The ninth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave; The tenth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The eleventh lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is convex; The twelfth lens has a negative optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is also concave; The thirteenth lens has positive optical power, and the side surface of the light information projection end is concave, and the side surface of the image receiving end is convex; The fourteenth lens has positive optical power, and the side surface of the light information projection end is convex, and the side surface of the image receiving end is concave.

12. The humanoid eye lens according to claim 10, characterized in that: 20mm <f1<50mm;-30mm<f2<-10mm;20mm<f3<50mm;30mm<f4<50mm;-50mm<f5<-20mm;-70mm<f6<-30mm;50mm<f7<120mm;50mm<f8<120mm;30mm<f9<60mm;-20mm<f 10 <-10mm; 10mm <f 11 <40mm; 25mm <f 12 <40mm; 50mm <f 13 <70mm; 50mm <f 14 <70mm; among which f1 to f 14 are the focal lengths of the first lens to the fourteenth lens, respectively.

13. The humanoid eye lens according to claim 11, characterized in that: 10mm <f1<30mm;-30mm<f2<-10mm;15mm<f3<35mm;50mm<f4<70mm;20mm<f5<30mm;-10mm<f6<0mm;-20mm<f7<-10mm;15mm<f8<35mm;30mm<f9<60mm;15mm<f 10 <35mm; 15mm <f 11 <35mm; -20mm <f 12 <0mm; 20mm <f 13 <40mm; 80mm <f 14 <100mm; among which, f1 to f 14 are the focal lengths of the first lens to the fourteenth lens, respectively.

14. The humanoid eye lens according to any one of claims 1 to 4, characterized in that: The side surface of the image receiving end of the second lens is glued to the side surface of the light information projection end of the third lens, defining a first glued surface between the second lens and the third lens; the side surface of the image receiving end of the ninth lens is glued to the side surface of the light information projection end of the tenth lens, defining a second glued surface between the ninth lens and the tenth lens.

15. The humanoid eye lens according to claim 14, characterized in that: The side surface of the image receiving end of the fifth lens is glued to the side surface of the light information projecting end of the sixth lens, defining a third glued surface between the fifth lens and the sixth lens.

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