A multifunctional zoom eyepiece with a double image plane and high magnification

Abstract

The present invention provides a multifunctional zoom eyepiece with a double image plane and a large magnification, belonging to the technical field of optical lenses, which includes an OLED component as a light-emitting component; a first optical lens component, a second fiber optic lens component, a third optical lens component, a fourth optical lens component, and an eyepiece component are sequentially arranged on the light path of the OLED light emission. The light incident side of the first optical lens component is attached to the light-emitting side of the OLED component; the second fiber optic lens component, the third optical lens component, the fourth optical lens component, and the eyepiece component are arranged at intervals from each other; the relative distances between the eyepiece component and the first optical lens component and the fourth optical lens component remain unchanged, and the positions of the second optical lens component and the third optical lens component relative to the OLED component are adjustable; the first image plane is located in the direction of the light incident side of the OLED component and its position remains unchanged, and the second image plane is located between the light-emitting side direction of the fourth optical lens component and the light incident side direction of the eyepiece component and its position remains unchanged.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and particularly to a multifunctional zoom eyepiece with a double image plane and a large magnification. Background Art

[0002] With the continuous development of technology, imaging lenses have also developed rapidly and are applied in multiple fields. Eyepiece systems containing OLED devices are becoming increasingly common. OLED is the abbreviation of Organic Light Emitting Diode, which is used to carry and display video or image information of optical charge carriers, facilitating better combination and application with products such as night vision devices and helmet displays.

[0003] Currently, when OLED devices are applied to eyepieces, due to optical limitations, the magnification results in a small exit pupil distance, affecting the usage effect. The exit pupil distance is a core parameter for users of the eyepiece system. A long exit pupil distance and a large exit pupil diameter provide a better observation field of view. An overly small exit pupil distance will cause the edge of the field of view to be cut off, affecting the observation effect. In addition, in order to achieve different viewing angles and ensure image quality, a zoom function is usually equipped on the eyepiece system, which generally includes optical zoom and digital zoom. Digital zoom is convenient to process, directly scaling the image, but this method will lose details, the image edge is not sharp enough, and the overall image clarity decreases, resulting in image quality loss. Optical zoom, on the other hand, realizes the magnification and reduction of the observed object by changing the focal length of the lens group, and the image always remains clear without loss of image quality.

[0004] Therefore, it is very necessary to provide a multifunctional zoom eyepiece with a double image plane and a large magnification, reasonably arranging the positions of the optical system and the OLED device, combining the optical zoom function within a limited size space, maintaining the parfocal property, and ensuring that the position of the image plane does not change due to the operation of adjusting the magnification, thereby having a better exit pupil distance and observation effect. Summary of the Invention

[0005] In view of this, the present invention proposes a multifunctional zoom eyepiece with a double image plane and a long exit pupil, which can achieve optical zoom, maintain the positions of two image planes and a long exit pupil distance unchanged when adjusting the magnification, and thus has a better field of view for observation.

[0006] The technical solution of the present invention is implemented as follows: The present invention provides a multifunctional zoom eyepiece with a double image plane and a large magnification, including:

[0007] An OLED component, serving as a light-emitting component;

[0008] A first optical lens component, arranged on the light-emitting optical path of the OLED component, and the light-incident side of the first optical lens component is attached to the light-emitting side of the OLED component;

[0009] A second optical lens assembly is disposed on the optical path on the light-emitting side of the first optical lens assembly and is spaced apart from the first optical lens assembly;

[0010] A third optical lens assembly is disposed on the optical path on the light-emitting side of the second optical lens assembly and is spaced apart from the second optical lens assembly;

[0011] A fourth optical lens assembly is disposed on the optical path on the light-emitting side of the third optical lens assembly and is spaced apart from the third optical lens assembly;

[0012] An eyepiece assembly is disposed on the optical path on the light-emitting side of the fourth optical lens assembly and is spaced apart from the fourth optical lens assembly;

[0013] Wherein, the relative distances between the eyepiece assembly and the first optical lens assembly and the fourth optical lens assembly remain unchanged, and the positions of the second optical lens assembly and the third optical lens assembly are adjustable relative to the OLED assembly; the first image plane is located in the light-emitting side direction of the OLED assembly and its position remains unchanged, and the second image plane is located between the light-emitting side direction of the fourth optical lens assembly and the light-incident side direction of the eyepiece assembly and its position remains unchanged.

[0014] Based on the above technical solutions, preferably, the first optical lens assembly includes a first lens and a second lens, and the first lens and the second lens are sequentially arranged along the light-emitting direction of the OLED assembly; the radius of curvature of the light-incident side of the first lens is INFINITY, the thickness of the first lens is 0.7 mm, and the radius of curvature of the light-emitting side of the first lens is INFINITY; the radius of curvature of the light-incident side of the second lens is 13.4670 mm, the distance from the light-emitting side of the first lens is 6.4087 mm, the thickness of the second lens is 3 mm, the radius of curvature of the light-emitting side of the second lens is 13.0480 mm, and the focal length of the second lens is 99.0118 mm.

[0015] Preferably, the second optical lens assembly includes a third lens and a fourth lens, and the third lens and the fourth lens are sequentially arranged along the light-emitting direction of the OLED assembly; the radius of curvature of the light-incident side of the third lens is 50.0311 mm, the distance from the light-emitting side of the second lens is D1, the thickness of the third lens is 2.2 mm, the radius of curvature of the light-emitting side of the third lens is -17l.5249 mm, and the focal length of the third lens is -20.544 mm; the radius of curvature of the light-incident side of the fourth lens is 12.6790 mm, the distance from the light-emitting side of the third lens is 2.4248 mm, the thickness of the fourth lens is 3.68 mm, the radius of curvature of the light-emitting side of the fourth lens is 7.9390 mm, and the focal length of the fourth lens is 75.008 mm.

[0016] Preferably, the third optical lens assembly includes a fifth lens and a sixth lens, which are sequentially arranged along the light-emitting direction of the OLED assembly; the radius of curvature of the light-incident side of the fifth lens is -32.5730 mm, the distance from the light-emitting side of the fourth lens is D2, the thickness of the fifth lens is 1 mm, and the radius of curvature of the light-emitting side of the fifth lens is -11.4590 mm; the light-incident side of the sixth lens is attached to and relatively fixed to the light-emitting side of the fifth lens, the thickness of the sixth lens is 4.9700 mm, and the radius of curvature of the light-emitting side of the sixth lens is 46.7920 mm; the overall focal length of the third optical lens assembly is 31.9122 mm.

[0017] Preferably, the fourth optical lens assembly includes a seventh lens and an eighth lens, which are sequentially arranged along the light-emitting direction of the OLED assembly; the radius of curvature of the light-incident side of the seventh lens is -12.7890 mm, the distance from the light-emitting side of the sixth lens is D3, the thickness of the seventh lens is 4.38 mm, the radius of curvature of the light-emitting side of the seventh lens is -468.2500 mm, and the focal length of the seventh lens is 25.4650 mm; the radius of curvature of the light-incident side of the eighth lens is 12.9790 mm, the distance from the light-emitting side of the seventh lens is 2.4336 mm, the thickness of the eighth lens is 1.2 mm, the radius of curvature of the light-emitting side of the eighth lens is -11.4060 mm, and the focal length of the eighth lens is -13.0980 mm.

[0018] Preferably, the value range of the distance D1 is [0.8 mm, 16.1555 mm], the value range of the distance D2 is [0.8 mm, 4.9451 mm], the value range of the distance D3 is [1.3437 mm, 16.6998 mm], and D1 + D2 + D3 = 18.2998 mm.

[0019] Preferably, when the positions of the second optical lens assembly and the third optical lens assembly relative to the OLED assembly change, the overall focal length of the structure formed by the second optical lens assembly, the third optical lens assembly, and the fourth optical lens assembly is 7.5657 mm - 10.8419 mm.

[0020] Preferably, the eyepiece assembly includes a ninth lens, a tenth lens, an eleventh lens, and a twelfth lens, which are sequentially arranged along the light-emitting direction of the OLED assembly; the radius of curvature of the light-incident side of the ninth lens is 14.1050 mm, the distance from the light-emitting side of the eighth lens is 18.5991 mm, the thickness of the ninth lens is 1.2 mm, and the radius of curvature of the light-emitting side of the ninth lens is -68.6480 mm; the light-incident side of the tenth lens is attached to and relatively fixed to the light-emitting side of the ninth lens, the thickness of the tenth lens is 8.2 mm, and the radius of curvature of the light-emitting side of the tenth lens is 17.9970 mm; the radius of curvature of the light-incident side of the eleventh lens is 295.2100 mm, the distance from the light-emitting side of the tenth lens is 0.8 mm, the thickness of the eleventh lens is 6.2 mm, and the radius of curvature of the light-emitting side of the eleventh lens is 29.5160 mm; the radius of curvature of the light-incident side of the twelfth lens is -59.0910 mm, the distance from the light-emitting side of the eleventh lens is 0.7999 mm, the thickness of the twelfth lens is 6.49 mm, and the radius of curvature of the light-emitting side of the twelfth lens is 76.1500 mm; wherein, the overall focal length of the ninth lens and the tenth lens is -47.7428 mm, the focal length of the eleventh lens is 44.5450 mm, and the focal length of the twelfth lens is 54.6411 mm; the overall focal length of the eyepiece assembly is 25.3167 mm.

[0021] Preferably, the distance from the second image plane to the light-emitting side of the eighth lens is 8.6300 mm.

[0022] Preferably, the distance from the first image plane to the light-incident side of the first lens is -8.4177×10 -5 mm.

[0023] A multifunctional zoom eyepiece with double image planes and large magnification provided by the present invention has the following beneficial effects compared with the prior art:

[0024] (1) By configuring the OLED assembly, the first optical lens assembly, the fourth optical lens assembly, and the eyepiece assembly at fixed positions, and cooperating with the second optical lens assembly and the third optical lens assembly that can change positions on the optical path; the light emitted by the OLED assembly generates two image planes in sequence, and the positions of the image planes are not changed by the focusing operations of the second optical lens assembly and the third optical lens assembly, having good parfocal characteristics. The first image plane is the image plane where the OLED is located, and the second image plane is an inverted real image. What is observed by the human eye outside the eyepiece assembly is an enlarged upright virtual image. While ensuring the observation range, the exit pupil distance of the multifunctional zoom eyepiece is greater than 50 mm, which is very suitable for use in the application field of digital telescopic sights;

[0025] (2) The parameters and positional relationships of each optical lens assembly and the eyepiece assembly are reasonably defined, enabling better realization of the optical zoom function. During the focusing process, only the positions of the second optical lens assembly and the third optical lens assembly change. Without changing the overall size of the eyepiece system, a relatively wide range of magnification can be achieved. While maintaining the exit pupil distance greater than 50 mm, a better observation field of view is obtained, improving the observation effect and portability of the multifunctional zoom eyepiece. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 The positional relationship between the OLED component and each lens in the first embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention;

[0028] Figure 2 Schematic diagram of the transfer function curve in the first embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention;

[0029] Figure 3 Schematic diagram of the lateral aberration curves in the first embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention at 0 field of view, 0.29 field of view, and 0.49 field of view;

[0030] Figure 4 Schematic diagram of the lateral aberration curves in the first embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention at 0.7 field of view, 0.85 field of view, and 1.00 field of view;

[0031] Figure 5 Schematic diagram of the astigmatism distortion curve in the first embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention;

[0032] Figure 6 The positional relationship between the OLED component and each lens in the second embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention;

[0033] Figure 7 Schematic diagram of the transfer function curve in the second embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention;

[0034] Figure 8 Schematic diagram of the lateral aberration curves in the second embodiment of a multifunctional zoom eyepiece with a double image plane and high magnification of the present invention at 0 field of view, 0.30 field of view, and 0.50 field of view;

[0035] Figure 9 For the second embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention, the lateral aberration curves at 0.7 field of view, 0.85 field of view, and 1.00 field of view;

[0036] Figure 10 Schematic diagram of the astigmatism distortion curve of the second embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention;

[0037] Figure 11 For the third embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention, the positional relationship between the OLED component and each lens;

[0038] Figure 12 Schematic diagram of the transfer function curve of the third embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention;

[0039] Figure 13 For the third embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention, the lateral aberration curves at 0 field of view, 0.30 field of view, and 0.50 field of view;

[0040] Figure 14 For the third embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention, the lateral aberration curves at 0.71 field of view, 0.85 field of view, and 1.00 field of view;

[0041] Figure 15 Schematic diagram of the astigmatism distortion curve of the third embodiment of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention;

[0042] Figure 16 Stereogram of the assembled state of a dual-image-plane high-magnification multifunctional zoom eyepiece of the present invention.

[0043] Reference numerals: 100, OLED component; 200, first optical lens assembly; 300, second optical lens assembly; 400, third optical lens assembly; 500, fourth optical lens assembly; 600, eyepiece assembly; 700, first image plane; 800, second image plane; 201, first lens; 202, second lens; 301, third lens; 302, fourth lens; 401, fifth lens; 402, sixth lens; 501, seventh lens; 502, eighth lens; 601, ninth lens; 602, tenth lens; 603, eleventh lens; 604, twelfth lens. Detailed implementation manners

[0044] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] When the OLED device is applied to the eyepiece, due to optical limitations, the magnification results in a small exit pupil distance, which affects the use effect. In view of this, as Figure 1 , Figure 6 , Figure 11 and Figure 16 shown, the present invention provides a multifunctional zoom eyepiece with a double image plane and large magnification, including:

[0046] The OLED component 100, as the light-emitting component;

[0047] The first optical lens component 200 is arranged on the light-emitting optical path of the OLED component 100, and the light-incident side of the first optical lens component 200 is attached to the light-emitting side of the OLED component 100;

[0048] The second optical lens component 300 is arranged on the optical path of the light-emitting side of the first optical lens component 200 and is arranged at an interval from the first optical lens component 200;

[0049] The third optical lens component 400 is arranged on the optical path of the light-emitting side of the second optical lens component 300 and is arranged at an interval from the second optical lens component 300;

[0050] The fourth optical lens component 500 is arranged on the optical path of the light-emitting side of the third optical lens component 400 and is arranged at an interval from the third optical lens component 400;

[0051] The eyepiece component 600 is arranged on the optical path of the light-emitting side of the fourth optical lens component 500 and is arranged at an interval from the fourth optical lens component 500;

[0052] Among them, the relative distances between the eyepiece component 600 and the first optical lens component 200 and the fourth optical lens component 500 remain unchanged, and the positions of the second optical lens component 300 and the third optical lens component 400 are adjustable relative to the OLED component 100; the first image plane 700 is located in the light-emitting side direction of the OLED component 100 and its position remains unchanged, and the second image plane 800 is located between the light-emitting side direction of the fourth optical lens component 500 and the light-incident side direction of the eyepiece component 600 and its position remains unchanged.

[0053] As can be seen from the figure, the centers of the optical lens assemblies and the eyepiece assembly are coaxial. By reasonably arranging the positions and parameters of the OLED assembly 100, the optical lens assemblies, and the eyepiece assembly 600, the present invention further obtains a multifunctional zoom eyepiece with a double image plane and a large magnification and an exit pupil distance exceeding 50 mm on the basis of ensuring smooth imaging twice. Among them, the positions of the second optical lens assembly 300 and the third optical lens assembly 400 on the optical path of the OLED assembly 100 are adjustable. The second optical lens assembly 300 and the third optical lens assembly 400 can be adjusted separately or simultaneously, so as to realize the function of adjusting the magnification in a large range. The total system focal length of the multifunctional zoom eyepiece with a double image plane and a large magnification is -37.8788 mm to -12.6263 mm, the magnification is 6.6 times to 19.8 times, the exit pupil distance is 52 mm, the overall length dimension is 145 mm, and the maximum total field of view angle is 27.6°. It meets the requirements of a long exit pupil distance (greater than 50 mm) and an exit pupil diameter of 8 mm, that is, the use requirements of a relatively wide magnification. Moreover, the overall structure of the multifunctional zoom eyepiece with a double image plane and a large magnification is very compact, which is convenient for carrying and using.

[0054] In the present invention, the OLED used in the OLED assembly 100 is a 1.03-inch OLED with a resolution of 2560 pixels * 2560 pixels and a pixel size of 7.2 microns. Figure 1 The propagation direction of the light in is assumed to be from left to right, and the human eye observation position is located Figure 1 on the left side of, and the OLED is located at the first image plane 700, that is Figure 1 the rightmost side of.

[0055] The following combines specific embodiments to make a comparative description of the focusing process of the present invention.

[0056] Embodiment 1. Combine Figure 1 , 2As shown in FIGS. 3, 4 and 5, the first optical lens assembly 200 includes a first lens 201 and a second lens 202, and the first lens 201 and the second lens 202 are sequentially arranged along the light-emitting direction of the OLED assembly 100; the radius of curvature of the light-incident side of the first lens 201 is INFINITY, the thickness of the first lens 201 is 0.7 mm, and the radius of curvature of the light-emitting side of the first lens 201 is INFINITY; the radius of curvature of the light-incident side of the second lens 202 is 13.4670 mm, the distance from the light-emitting side of the first lens 201 is 6.4087 mm, the thickness of the second lens 202 is 3 mm, the radius of curvature of the light-emitting side of the second lens 202 is 13.0480 mm, and the focal length of the second lens 202 is 99.0118 mm. The first lens 201 is a flat glass made of Hk9L_CDGM, so the focal lengths of both the light-incident side and the light-emitting side are infinite. The second lens 202 is a convex lens, which refracts the light emitted by the OLED assembly 100 through the first lens 201.

[0057] The second optical lens assembly 300 includes a third lens 301 and a fourth lens 302, and the third lens 301 and the fourth lens 302 are sequentially arranged along the light-emitting direction of the OLED assembly 100; the radius of curvature of the light-incident side of the third lens 301 is 50.0311 mm, the distance from the light-emitting side of the second lens 202 is D1, the thickness of the third lens 301 is 2.2 mm, the radius of curvature of the light-emitting side of the third lens 301 is -171.5249 mm, and the focal length of the third lens 301 is -20.544 mm; the radius of curvature of the light-incident side of the fourth lens 302 is 12.6790 mm, the distance from the light-emitting side of the third lens 301 is 2.4248 mm, the thickness of the fourth lens 302 is 3.68 mm, the radius of curvature of the light-emitting side of the fourth lens 302 is 7.9390 mm, and the focal length of the fourth lens 302 is 75.008 mm. In this embodiment, the distance D1 is 16.6998 mm. The third lens 301 is a concave lens, which expands the incident light, and the fourth lens 302 is a convex lens, which converges the incident light, reduces the divergence angle, and enables the light to be smoothly sent into the third optical lens assembly 400.

[0058] The third optical lens assembly 400 includes a fifth lens 401 and a sixth lens 402, which are sequentially arranged along the light-emitting direction of the OLED assembly 100; the radius of curvature of the light-incident side of the fifth lens 401 is -32.5730 mm, the distance from the light-emitting side of the fourth lens 302 is D2, the thickness of the fifth lens 401 is 1 mm, and the radius of curvature of the light-emitting side of the fifth lens 401 is -11.4590 mm; the light-incident side of the sixth lens 402 is attached to and relatively fixed to the light-emitting side of the fifth lens 401, the thickness of the sixth lens 402 is 4.9700 mm, and the radius of curvature of the light-emitting side of the sixth lens 402 is 46.7920 mm; the overall focal length of the third optical lens assembly 400 is 31.9122 mm. In this embodiment, the distance D2 is 0.8000 mm. The fifth lens 401 and the sixth lens 402 are glued and attached for fixation. This is because the radii of curvature of the adjacent end faces of the two lenses are exactly the same. The advantage of this is that it reduces the spacer positioning process, can also shorten the overall length of the third optical lens assembly 400, and has a larger space for dimensional variation.

[0059] The fourth optical lens assembly 500 includes a seventh lens 501 and an eighth lens 502, which are sequentially arranged along the light-emitting direction of the OLED assembly 100; the radius of curvature of the light-incident side of the seventh lens 501 is -12.7890 mm, the distance from the light-emitting side of the sixth lens 402 is D3, the thickness of the seventh lens 501 is 4.38 mm, the radius of curvature of the light-emitting side of the seventh lens 501 is -468.2500 mm, and the focal length of the seventh lens 501 is 25.4650 mm; the radius of curvature of the light-incident side of the eighth lens 502 is 12.9790 mm, the distance from the light-emitting side of the seventh lens 501 is 2.4336 mm, the thickness of the eighth lens 502 is 1.2 mm, the radius of curvature of the light-emitting side of the eighth lens 502 is -11.4060 mm, and the focal length of the eighth lens 502 is -13.0980 mm. In this embodiment, the distance D3 is .8000 mm. The seventh lens is a convex lens, and the eighth lens is a concave lens. The two are combined to form a second image plane.

[0060] In this embodiment, when the second optical lens assembly 300 and the third optical lens assembly 400 are in the current positions, the overall focal length of the structure formed by the second optical lens assembly 300, the third optical lens assembly 400, and the fourth optical lens assembly 500 is 10.8419 mm.

[0061] The eyepiece assembly 600 includes a ninth lens 601, a tenth lens 602, an eleventh lens 603, and a twelfth lens 604, which are sequentially arranged along the light-emitting direction of the OLED assembly 100; the radius of curvature of the light-incident side of the ninth lens 601 is 14.1050 mm, the distance from the light-emitting side of the eighth lens 502 is 18.5991 mm, the thickness of the ninth lens 601 is 1.2 mm, and the radius of curvature of the light-emitting side of the ninth lens 601 is -68.6480 mm; the light-incident side of the tenth lens 602 is attached to and relatively fixed to the light-emitting side of the ninth lens 601, the thickness of the tenth lens 602 is 8.2 mm, and the radius of curvature of the light-emitting side of the tenth lens 602 is 17.9970 mm; the radius of curvature of the light-incident side of the eleventh lens 603 is 295.2100 mm, the distance from the light-emitting side of the tenth lens 602 is 0.8 mm, the thickness of the eleventh lens 603 is 6.2 mm, and the radius of curvature of the light-emitting side of the eleventh lens 603 is 29.5160 mm; the radius of curvature of the light-incident side of the twelfth lens 604 is -59.0910 mm, the distance from the light-emitting side of the eleventh lens 603 is 0.7999 mm, the thickness of the twelfth lens 604 is 6.49 mm, and the radius of curvature of the light-emitting side of the twelfth lens 604 is 76.1500 mm; among them, the overall focal length of the ninth lens 601 and the tenth lens 602 is -47.7428 mm, the focal length of the eleventh lens 603 is 44.5450 mm, and the focal length of the twelfth lens 604 is 54.6411 mm; the overall focal length of the eyepiece assembly 600 is 25.3167 mm. The ninth lens and the tenth lens are also fixed and attached by gluing, which can also reduce the spacer positioning process and shorten the overall dimension length of the eyepiece assembly 600.

[0062] In this embodiment, the overall focal length of the multifunctional zoom eyepiece with double image planes and large magnification is -37.8788 mm, and the magnification is 6.6 times.

[0063] Figure 2 It is a schematic diagram of the transfer function curve of this embodiment, which represents the imaging modulation degree of the lens at different spatial frequencies in each field of view. The horizontal axis represents the spatial frequency, with the unit of cycles per millimeter, and the vertical axis represents the modulation transfer function value MTF.

[0064] As Figure 3 and Figure 4 shown, it shows the lateral aberration curves of the 0 field of view, 0.29 field of view, 0.49 field of view, 0.71 field of view, 0.85 field of view, and 1.0 field of view applied to this embodiment. The wavelength range is 486 - 656 nm. It can be found from the curves that the lateral aberration within the field of view is well corrected and the imaging performance is good.

[0065] Figure 5 The left side is the astigmatism diagram used in this embodiment. Figure 5 The right side is a distortion diagram of this embodiment. It can be seen that the distortion of this embodiment is relatively small and has little impact on the imaging quality.

[0066] Example 2, as Figure 6 As shown, this embodiment differs from Example 1 in that the positions of the second optical lens assembly 300 and the third optical lens assembly 400 relative to the OLED assembly 100 are adjusted so that the distance D1 becomes 6.5096 mm, the distance D2 becomes 4.9451 mm, and the distance D3 becomes 6.8452 mm. The overall focal length of the dual-image plane, high-magnification, multifunctional zoom eyepiece is now -20.8333 mm, and the magnification is 12. The overall focal length of the structure formed by the second optical lens assembly 300, the third optical lens assembly 400, and the fourth optical lens assembly 500 is 9.915 mm.

[0067] The transfer function curve diagram of this embodiment, the lateral aberration curve diagrams of 0 field of view, 0.29 field of view, 0.49 field of view, 0.71 field of view, 0.85 field of view and 1.0 field of view, and the astigmatism distortion diagram of this embodiment are shown in the attached drawings. Figure 7 、 Figure 8 、 Figure 9 and Figure 10 .

[0068] Example 3, as Figure 11 As shown, this embodiment differs from Example 2 in that the positions of the second optical lens assembly 300 and the third optical lens assembly 400 relative to the OLED assembly 100 are further adjusted, so that the distance D1 becomes 1.3437 mm, the distance D2 becomes 0.8006 mm, and the distance D3 becomes 16.1555 mm. The overall focal length of the dual-image plane, high-magnification, multifunctional zoom eyepiece is now -12.6263 mm, and the magnification is 19.8. The overall focal length of the structure formed by the second optical lens assembly 300, the third optical lens assembly 400, and the fourth optical lens assembly 500 is 7.5657 mm.

[0069] The transfer function curve diagram of this embodiment, the lateral aberration curve diagrams of 0 field of view, 0.29 field of view, 0.49 field of view, 0.71 field of view, 0.85 field of view and 1.0 field of view, and the astigmatism distortion diagram of this embodiment are shown in the attached drawings. Figure 12 、 Figure 13 、 Figure 14 and Figure 15 .

[0070] As can be seen from the content of the above embodiments, the value range of the distance D1 is [0.8, 16.1555], with the unit of mm, the value range of the distance D2 is [0.8, 4.9451], with the unit of mm, and the value range of the distance D3 is [1.3437, 16.6998], with the unit of mm. And regardless of the current positions of the second optical lens assembly 300 and the third optical lens assembly 400, it always satisfies D1 + D2 + D3 = 18.2998 mm. The distance between the first image plane 700 and the light incident side of the first lens 201 is -8.4177×10 -5 mm. The distance between the second image plane 800 and the light exiting side of the eighth lens 502 is 8.6300 mm. The positions of the first image plane and the second image plane do not change due to the change of the magnification factor, so as to always maintain the effect of clear imaging.

[0071] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional zoom eyepiece with a double image plane and high magnification, characterized in that Comprising: An OLED component (100), serving as a light-emitting component; A first optical lens component (200), arranged on the light-emitting optical path of the OLED component (100), with the light-incident side of the first optical lens component (200) being in contact with the light-emitting side of the OLED component (100); The first optical lens component (200) includes a first lens (201) and a second lens (202), and the first lens (201) and the second lens (202) are sequentially arranged along the light-emitting direction of the OLED component (100); the radius of curvature of the light-incident side of the first lens (201) is INFINITY, the thickness of the first lens (201) is 0.7 mm, and the radius of curvature of the light-emitting side of the first lens (201) is INFINITY; the radius of curvature of the light-incident side of the second lens (202) is 13.4670 mm, the distance from the light-emitting side of the first lens (201) is 6.4087 mm, the thickness of the second lens (202) is 3 mm, the radius of curvature of the light-emitting side of the second lens (202) is 13.0480 mm, and the focal length of the second lens (202) is 99.0118 mm; A second optical lens component (300), arranged on the optical path of the light-emitting side of the first optical lens component (200) and spaced from the first optical lens component (200); The second optical lens component (300) includes a third lens (301) and a fourth lens (302), and the third lens (301) and the fourth lens (302) are sequentially arranged along the light-emitting direction of the OLED component (100); the radius of curvature of the light-incident side of the third lens (301) is 50.0311 mm, the distance from the light-emitting side of the second lens (202) is D1, the thickness of the third lens (301) is 2.2 mm, the radius of curvature of the light-emitting side of the third lens (301) is -171.5249 mm, and the focal length of the third lens (301) is -20.544 mm; the radius of curvature of the light-incident side of the fourth lens (302) is 12.6790 mm, the distance from the light-emitting side of the third lens (301) is 2.4248 mm, the thickness of the fourth lens (302) is 3.68 mm, the radius of curvature of the light-emitting side of the fourth lens (302) is 7.9390 mm, and the focal length of the fourth lens (302) is 75.008 mm; A third optical lens component (400), arranged on the optical path of the light-emitting side of the second optical lens component (300) and spaced from the second optical lens component (300); The third optical lens assembly (400) includes a fifth lens (401) and a sixth lens (402), which are sequentially arranged along the light-emitting direction of the OLED assembly (100); the radius of curvature of the light-incident side of the fifth lens (401) is -32.5730 mm, the distance from the light-emitting side of the fourth lens (302) is D2, the thickness of the fifth lens (401) is 1 mm, and the radius of curvature of the light-emitting side of the fifth lens (401) is -11.4590 mm; the light-incident side of the sixth lens (402) is attached to and relatively fixed to the light-emitting side of the fifth lens (401), the thickness of the sixth lens (402) is 4.9700 mm, and the radius of curvature of the light-emitting side of the sixth lens (402) is 46.7920 mm; The overall focal length of the third optical lens assembly (400) is 31.9122 mm; A fourth optical lens assembly (500) is disposed on the optical path on the light-emitting side of the third optical lens assembly and is spaced apart from the third optical lens assembly (400); The fourth optical lens assembly (500) includes a seventh lens (501) and an eighth lens (502), which are sequentially arranged along the light-emitting direction of the OLED assembly (100); the radius of curvature of the light-incident side of the seventh lens (501) is -12.7890 mm, the distance from the light-emitting side of the sixth lens (402) is D3, the thickness of the seventh lens (501) is 4.38 mm, the radius of curvature of the light-emitting side of the seventh lens (501) is -468.2500 mm, and the focal length of the seventh lens (501) is 25.4650 mm; the radius of curvature of the light-incident side of the eighth lens (502) is 12.9790 mm, the distance from the light-emitting side of the seventh lens (501) is 2.4336 mm, the thickness of the eighth lens (502) is 1.2 mm, the radius of curvature of the light-emitting side of the eighth lens (502) is -11.4060 mm, and the focal length of the eighth lens (502) is -13.0980 mm; An eyepiece assembly (600) is disposed on the optical path on the light-emitting side of the fourth optical lens assembly (500) and is spaced apart from the fourth optical lens assembly (500); Wherein, the relative distances between the eyepiece assembly (600), the first optical lens assembly (200), and the fourth optical lens assembly (500) remain unchanged, and the positions of the second optical lens assembly (300) and the third optical lens assembly (400) relative to the OLED assembly (100) are adjustable; the first image plane (700) is located in the light-emitting direction of the OLED assembly (100) and its position remains unchanged, and the second image plane (800) is located between the light-emitting direction of the fourth optical lens assembly (500) and the light-incident direction of the eyepiece assembly (600) and its position remains unchanged.

2. The multifunctional zoom eyepiece with a double image plane and high magnification according to claim 1, characterized in that, The value range of the distance D1 is [0.8 mm, 16.1555 mm], the value range of the distance D2 is [0.8 mm, 4.9451 mm], the value range of the distance D3 is [1.3437 mm, 16.6998 mm], and D1 + D2 + D3 = 18.2998 mm.

3. The multifunctional zoom eyepiece with double image planes and high magnification according to claim 1, wherein When the positions of the second optical lens assembly (300) and the third optical lens assembly (400) change relative to the OLED assembly (100), the overall focal length of the structure formed by the second optical lens assembly (300), the third optical lens assembly (400), and the fourth optical lens assembly (500) is 7.5657 mm - 10.8419 mm.

4. The multifunctional zoom eyepiece with a double image plane and high magnification according to claim 1, characterized in that, The eyepiece assembly (600) includes a ninth lens (601), a tenth lens (602), an eleventh lens (603), and a twelfth lens (604). The ninth lens (601), the tenth lens (602), the eleventh lens (603), and the twelfth lens (604) are sequentially arranged along the light-emitting direction of the OLED assembly (100); the curvature radius of the light-incident side of the ninth lens (601) is 14.1050 mm, the distance from the light-emitting side of the eighth lens (502) is 18.5991 mm, the thickness of the ninth lens (601) is 1.2 mm, and the curvature radius of the light-emitting side of the ninth lens (601) is -68.6480 mm; the light-incident side of the tenth lens (602) is attached to and relatively fixed to the light-emitting side of the ninth lens (601), the thickness of the tenth lens (602) is 8.2 mm, and the curvature radius of the light-emitting side of the tenth lens (602) is 17.9970 mm; the curvature radius of the light-incident side of the eleventh lens (603) is 295.2100 mm, the distance from the light-emitting side of the tenth lens (602) is 0.8 mm, the thickness of the eleventh lens (603) is 6.2 mm, and the curvature radius of the light-emitting side of the eleventh lens (603) is 29.5160 mm; the curvature radius of the light-incident side of the twelfth lens (604) is -59.0910 mm, the distance from the light-emitting side of the eleventh lens (603) is 0.7999 mm, the thickness of the twelfth lens (604) is 6.49 mm, and the curvature radius of the light-emitting side of the twelfth lens (604) is 76.1500 mm; among them, the overall focal length of the ninth lens (601) and the tenth lens (602) is -47.7428 mm, the focal length of the eleventh lens (603) is 44.5450 mm, and the focal length of the twelfth lens (604) is 54.6411 mm; the overall focal length of the eyepiece assembly (600) is 25.3167 mm.

5. A multifunctional zoom eyepiece with a double image plane and a large magnification factor, as claimed in claim 1, characterized in that, The distance from the second image plane (800) to the light-emitting side of the eighth lens (502) is 8.6300 mm.

6. The multifunctional zoom eyepiece with double image planes and high magnification according to claim 1, characterized in that, The distance from the first image plane (700) to the light incident side of the first lens (201) is -8.4177×10 -5 mm.

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