Longitudinal chromatic aberration adjusting system based on geometric phase liquid crystal lens

Abstract

The invention belongs to the field of optical display, and particularly relates to a longitudinal chromatic aberration adjusting system based on a geometric phase liquid crystal lens, which comprises the geometric phase liquid crystal lens for changing imaging focal lengths of different wavebands of visible light incident to the geometric phase liquid crystal lens and reversing the size relation of the imaging focal lengths of the different wavebands of the visible light; the circular polarizing film modulates the light incident on the circular polarizing film into circular polarized light and eliminates stray light; the preset lens is combined with the geometric phase liquid crystal lens to reduce the focal power; after incident light passes through the geometric phase liquid crystal lens, the circular polarizer and the preset lens, different visible light wave bands are imaged on the retina of a viewer, and longitudinal chromatic aberration is eliminated. Through the above arrangement, through the combination of the geometric phase liquid crystal lens, the circular polarizer and the preset lens, the incident light can have basically the same focal length on the retina of the eyes of a viewer, that is, the interference of a longitudinal error on eye imaging is eliminated, and the viewing experience is improved.

Description

Technical Field

[0001] The invention belongs to the field of optical display, and in particular relates to a longitudinal chromatic aberration adjustment system based on a geometric phase liquid crystal lens. Background Art

[0002] When the viewer looks at a nearby object, the lens in the eye adjusts the image of the short-wavelength light to fall near the retina, while the image of the long-wavelength light to fall behind the retina, causing the retina to tend to move backwards, which in turn causes the eyeball to form a force to grow backwards longitudinally, which will lead to myopia in the long run.

[0003] Based on the above problems, it is necessary to reduce the probability of myopia by eliminating the interference factor of longitudinal chromatic aberration, and eliminate longitudinal chromatic aberration without introducing additional diopter. The solution implemented by traditional refractive optical elements in the prior art is too bulky, not suitable for users to wear for a long time, and has poor user experience. Summary of the invention

[0004] The present invention is proposed based on the above-mentioned requirements of the prior art. The technical problem to be solved by the present invention is to provide a longitudinal chromatic aberration adjustment system and glasses based on geometric phase liquid crystal lenses to improve the wearing experience of users.

[0005] In order to solve the above problems, the technical solution provided by the present invention includes:

[0006] Provided is a longitudinal chromatic aberration adjustment system based on a geometric phase liquid crystal lens, comprising: a geometric phase liquid crystal lens, which changes the imaging focal lengths of different bands of visible light incident on the geometric phase liquid crystal lens, and reverses the size relationship of the imaging focal lengths of different visible light bands; a circular polarizer, which modulates the light incident on the circular polarizer into circularly polarized light, and eliminates stray light; a preset lens, which is combined with the geometric phase liquid crystal lens to reduce the optical focal length; after the incident light passes through the geometric phase liquid crystal lens, the circular polarizer and the preset lens, different visible light bands are imaged on the viewer's retina, and longitudinal chromatic aberration is eliminated.

[0007] Through the above-mentioned arrangement, the geometric phase liquid crystal lens, the circular polarizer and the preset lens are combined so that the incident light can have basically the same focal length on the retina of the viewer's eye, that is, the interference of the longitudinal error on the eye imaging is eliminated, wherein the geometric phase liquid crystal lens is combined with the viewer's lens to eliminate the different focal lengths formed by different wavelengths, the circular polarizer ensures the normal operation of the above-mentioned system and avoids the generation of ghosting and stray light, and the preset lens is used to cooperate with the geometric phase liquid crystal lens to form a suitable optical focal length to enhance the viewing experience.

[0008] Preferably, the longitudinal chromatic aberration adjustment system based on the geometric phase liquid crystal lens also includes a sub-module, and the sub-module includes the geometric phase liquid crystal lens, a circular polarizer and a preset lens. A plurality of the sub-modules are arranged in a preset manner to form the longitudinal chromatic aberration adjustment system based on the geometric phase liquid crystal lens.

[0009] By setting up sub-modules arranged in a preset manner, the perspective resolution problem caused by lateral chromatic aberration is avoided to ensure the viewer's experience.

[0010] Preferably, the refractive power of the geometric phase liquid crystal lens is a first refractive power less than zero, the refractive power of the preset lens is a second refractive power greater than zero, and the sum of the first refractive power and the second refractive power is zero.

[0011] Through the above arrangement, the longitudinal chromatic aberration adjustment system maintains the characteristics of a plano lens, and is suitable for myopia prevention and control groups and myopic people. For the myopia prevention and control group, the above system can eliminate the influence of longitudinal chromatic aberration on the eyes, prevent the elongation of the eye axis, and effectively prevent and control myopia. For myopic people, the longitudinal chromatic aberration adjustment system and ordinary myopia correction lenses can simultaneously achieve the effects of correcting myopia and eliminating longitudinal chromatic aberration, so that it is suitable for most myopic people. It is only necessary to superimpose a longitudinal chromatic aberration adjustment system with the characteristics of a plano lens on the myopia glasses used daily, and the flexibility of adaptation is high.

[0012] Preferably, the absolute value of the first refractive power is greater than the absolute value of the second refractive power.

[0013] Through the above-mentioned arrangement, the longitudinal chromatic aberration adjustment system has a certain refractive power, and the effect of correcting myopia and eliminating longitudinal chromatic aberration can be directly achieved through the system. The refractive power of the longitudinal chromatic aberration adjustment system can be personalized adjusted according to the actual eye condition of the viewer without the need to combine it with myopia correction lenses. The overall structure of the longitudinal chromatic aberration adjustment system is light and highly targeted.

[0014] Preferably, the first diopter ranges from -10D to -1D; and the second diopter ranges from 1D to 10D.

[0015] Through the above arrangement, the diopter of the system can be adjusted within a relatively large range to suit most people.

[0016] Preferably, the geometric phase liquid crystal lens comprises a photo-alignment layer and a multi-layer liquid crystal layer disposed on the photo-alignment layer; the bottom molecules in the liquid crystal layer connected to the photo-alignment layer are arranged according to the arrangement of the molecules in the photo-alignment layer.

[0017] The above arrangement is used to improve light efficiency.

[0018] Preferably, the molecules in contact with each other in adjacent liquid crystal layers are arranged in the same direction.

[0019] The above arrangement is used to improve light efficiency.

[0020] Preferably, the liquid crystal molecules in the liquid crystal layer form a spiral structure along the first direction.

[0021] The above arrangement is used to improve light efficiency.

[0022] Preferably, the angle of the molecules in the photo-alignment layer on the plane meets the condition Wherein f is the focal length of the geometric phase liquid crystal lens, λ is the wavelength, β(x, y) is the high-order phase term, x is the abscissa of the plane where the liquid crystal lens is located, and y is the ordinate of the plane where the liquid crystal lens is located.

[0023] Preferably, the area of ​​the plane where the submodule is located is 0.25 square millimeters to 25 square millimeters.

[0024] Also provided are glasses comprising lenses, wherein the lenses include any one of the above-mentioned longitudinal chromatic aberration adjustment systems based on geometric phase liquid crystal lenses.

[0025] Through the above arrangement, a lightweight glasses structure is formed according to the actual situation of the viewer, thereby effectively eliminating the influence of longitudinal chromatic aberration on the viewer's viewing experience.

[0026] Compared with the prior art, the present invention eliminates longitudinal chromatic aberration by setting a geometric phase liquid crystal lens to cooperate with the lens of the eye, eliminates ghosting and stray light by setting a circular polarizer, and forms a suitable optical focal length by setting a preset lens to cooperate with the geometric phase liquid crystal lens. Through the above settings, a good viewing experience can be achieved while eliminating longitudinal chromatic aberration; multiple sub-modules are set at the same time, and the sub-modules are arranged in a preset manner to avoid the perspective resolution caused by the generated lateral chromatic aberration; in addition, the refractive power of the geometric phase liquid crystal lens is set to enable it to be flexibly used in different scenarios; and the level of the geometric phase liquid crystal lens is adjusted to improve the light efficiency of the liquid crystal lens in the visible light band. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 This is a schematic diagram of the longitudinal chromatic aberration caused by light of different wavelengths on the retina when the eyes look far away;

[0029] Figure 2This is a schematic diagram showing the formation of images of light of different wavelengths near the retina when the eyes are looking at close objects without focusing;

[0030] Figure 3 This is a schematic diagram of the formation of images of light of different wavelengths near the retina when the eyes look close and focus;

[0031] Figure 4 A schematic plan view of a longitudinal chromatic aberration adjustment system formed by arranging submodules;

[0032] Figure 5 Schematic diagram of imaging of light of different wavelength bands through a geometric phase liquid crystal lens;

[0033] Figure 6 It is a side cross-sectional structural diagram of a submodule of a longitudinal chromatic aberration adjustment system;

[0034] Figure 7 is the configuration diagram of the geometric phase liquid crystal lens;

[0035] Figure 8 Schematic diagram of the spiral structure in the geometric phase liquid crystal lens;

[0036] Fig. 9 It is a planar schematic diagram of the light alignment layer in the geometric phase liquid crystal lens;

[0037] Fig.10 Schematic diagram of the structure of the photo-alignment layer molecules;

[0038] Fig.11 It is a schematic diagram of experimental data;

[0039] Fig.12 It is a schematic diagram of the imaging of light on the retina after passing through the longitudinal chromatic aberration adjustment system.

[0040] Reference numerals:

[0041] 1. Short-wave imaging; 2. Medium-wave imaging; 3. Long-wave imaging; 4. Retina; 5. Lens; 6. Submodule; 601. Geometric phase liquid crystal lens; 601A. Photo-orientation layer; 601B. Liquid crystal layer; 602. Circular polarizer; 603. Preset lens; 7. Longitudinal chromatic aberration adjustment system; 8. Spiral structure; 9. Photo-orientation layer molecules. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connected" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral connection, which can be a mechanical connection, or an electrical connection, which can be a direct connection, or can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The terms "top", "bottom", "above", "lower", and "on" used throughout the description are relative to the relative positions of components of a device, such as the relative positions of the top and bottom substrates within a device. It is understood that devices are multifunctional regardless of their orientation in space.

[0045] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0046] Example 1

[0047] When the viewer is looking at a distant object, the light entering the eye is adjusted and focused by the lens 5. However, since the lens 5 has different refractive indices for light in different wavelength bands, light in different wavelength bands has different imaging positions in the eye. When the viewer is looking into the distance, the lens 5 is in a relaxed state. At this time, the focal length of the short-band (blue light) imaging is smaller than that of the medium-band (green light) imaging, and the focal length of the medium-band imaging 2 is smaller than that of the long-band (red light) imaging. If the medium-band imaging 2 is on the retina 4, the short-band imaging 1 will fall in front of the retina 4 and the long-band imaging 3 will fall behind the retina 4; if the short-band imaging 1 is on the retina 4, both the medium-band imaging 2 and the long-band imaging 3 will be behind the retina 4; if the long-band imaging 3 is on the retina 4, both the short-band imaging 1 and the medium-band imaging 2 will fall in front of the retina 4. Figure 1 As shown, the medium-band imaging 2 on the retina 4 can make the image of the distant object concentrated near the retina 4. At this time, there are images in front and behind the retina 4, which is relatively balanced. The retina 4 will not have a tendency to move forward or backward. Compared with the short-band imaging 1 on the retina 4 or the long-band imaging 3 on the retina 4, the medium-band imaging 2 on the retina 4 can make the overall image clarity the highest.

[0048] When the viewer is looking at a nearby object, Figure 2 As shown, if the lens 5 is still in a relaxed state, after the light entering the eye is adjusted and focused by the lens 5, the short-waveband imaging 1, the medium-waveband imaging 2 and the long-waveband imaging 3 will all be located behind the retina 4, and the overall image will be blurred.

[0049] When the viewer is looking at a near object and the lens 5 becomes thicker, Figure 3 As shown, the light entering the eye is focused and adjusted by the lens 5. When the short-waveband image 1 is located on the retina 4, the overall image seen is relatively clear. In this case, the lens 5 will not adjust again to make the medium-waveband image 2 on the retina 4. At this time, the medium-waveband image 2 and the long-waveband image 3 are both located behind the retina 4. Such signals will stimulate the growth of the medium-waveband image 2 and the long-waveband image 3 behind the eyeball, thereby causing the elongation of the eye axis, forming myopia or further deepening the degree of myopia.

[0050] Based on the above principle, this embodiment provides a longitudinal chromatic aberration adjustment system 7 based on a geometric phase liquid crystal lens, such as Figure 4-10 shown.

[0051] The longitudinal chromatic aberration adjustment system 7 based on the geometric phase liquid crystal lens will be referred to as the "longitudinal chromatic aberration adjustment system" in the following text. The longitudinal chromatic aberration adjustment system 7 includes a plurality of submodules 6. The area of ​​the plane where the submodules 6 are located is 0.25 square millimeters to 25 square millimeters. The plurality of submodules 6 are arranged in an array to avoid the problem of low perspective resolution caused by lateral chromatic aberration. For example, Figure 4 As shown, the submodule 6 is rectangular and arranged in three rows and four columns. The shape and arrangement of the multiple submodules 6 are not limited. The area occupied by the submodule in the plane is 0.25 square millimeters to 25 square millimeters.

[0052] like Figure 6 As shown, the submodule 6 includes a geometric phase liquid crystal lens 601 .

[0053] The geometric phase liquid crystal lens 601, such as Figure 5 As shown, it is a planar diffractive optical element. When parallel light in the visible light band is incident on the geometric phase liquid crystal lens 601, the focal length of the short-waveband imaging 1 through the geometric phase liquid crystal lens 601 is greater than the focal length of the medium-waveband imaging 2, and the focal length of the medium-waveband imaging 2 is greater than the focal length of the long-waveband imaging 3. In other words, the longitudinal chromatic aberration after passing through the geometric phase liquid crystal lens 601 is opposite to the longitudinal chromatic aberration after passing through the crystalline body 5 or the traditional refractive optical element. The diopter of the geometric phase liquid level lens is set between -10D and -1D.

[0054] The configuration of the geometric phase liquid crystal lens 601 is as follows Figure 7-10 As shown, it includes a light alignment layer 601A and a liquid crystal 601B. The bottom layer is the light alignment layer 601A, and the light alignment layer molecules 9 are arranged as follows: Fig. 9 and Fig.10 As shown, specifically, the angle of the photo-alignment layer molecule 9 in the plane Distribution satisfies the condition Where f is the focal length of the geometric phase liquid crystal lens, λ is the wavelength, β(x, y) is the high-order phase term, and x and y are the coordinates of the plane where the liquid crystal lens is located. N layers of liquid crystal 601B are arranged above the light alignment layer 601A. The bottom molecules of the liquid crystal 601B adjacent to the light alignment layer 601A are arranged in the same way as the molecules 9 of the light alignment layer. The molecules in contact between adjacent liquid crystals 601B in the N layers of liquid crystal 601B are arranged in the same direction, and each layer of liquid crystal 601B has a spiral structure 8 in the first direction, and the spiral structure 8 is formed spontaneously. The spontaneous spiral structure 8 is as follows: the thickness of the liquid crystal molecules in the i-th layer of liquid crystal 601B is d i , and the liquid crystal molecules in this layer rotate at an angle of α in the first direction i , where i=1~N, the geometric phase liquid crystal lens 601 has an efficiency greater than 90% in the visible light band.

[0055] Compared with conventional lenses, the geometric phase liquid crystal lens 601 can achieve greater reverse longitudinal chromatic aberration with smaller optical power. Fig.11 The experimental data shown are explained as follows: the Abbe number of a lens with a focal length of 50 cm (2.0D) made of traditional glass material NBK7 is approximately 64, and its focal length is measured to be 2.01D under blue light (488nm), 2.0D under green light wavelength (532nm), and 1.98D under red light wavelength (633nm). The focal length difference between blue light and red light is 0.03D. The focal length of the geometric phase liquid crystal lens 601 under blue (488nm), green (532nm), and red (633nm) is measured to be 1.85D, 1.99D, and 2.36D. The focal length difference between blue light and red light is -0.51D. Based on the above test data, it can be known that the optical power-wavelength dispersion relationship of the geometric phase liquid crystal lens 601 and the traditional glass lens is opposite; the absolute value of the Abbe number of the geometric phase liquid crystal lens 601 is approximately 17 times that of the traditional glass material NBK7. Therefore, the geometric phase liquid crystal lens 601 can achieve a larger reverse longitudinal chromatic aberration with a smaller optical power.

[0056] The longitudinal chromatic aberration adjustment system 7 further includes a circular polarizer 602 and a preset lens 603. The relative arrangement order among the geometric phase liquid crystal lens 601, the circular polarizer 602 and the preset lens 603 can be interchanged at will. The circular polarizer 602 is arranged to ensure the normal operation of the geometric phase liquid crystal lens 601 and avoid ghosting and stray light. The diopter of the preset lens 603 is set between 1D and 10D. The preset lens 603 can cooperate with the geometric phase liquid crystal lens 601 to form a suitable optical focal length. If the preset lens 603 is not arranged, a larger optical focal length will eventually be formed to seriously affect the viewing experience.

[0057] like Fig.12 As shown, no matter the light emitted by a near object or a far object passes through the longitudinal chromatic aberration adjustment system 7 and the viewer's lens 5, the entire band of visible light will be focused on the viewer's retina 4 without spatial separation, i.e., without longitudinal chromatic aberration, thereby being able to avoid the elongation of the eyeball caused by longitudinal chromatic aberration to a limited extent.

[0058] Furthermore, after the light is modulated by the longitudinal chromatic aberration adjustment system 7, the focal length of the long-waveband imaging 3 is made smaller than the focal length of the short-waveband imaging 1, so as to reverse the longitudinal chromatic aberration, thereby producing the effect of reversing the signal for stimulating the longitudinal elongation of the eyeball.

[0059] In some application scenarios, the longitudinal chromatic aberration adjustment system 7 maintains the characteristics of a plano lens, that is, the system diopter is 0, the diopter of the geometric phase liquid crystal lens 601 is opposite to the diopter of the preset lens 603, and illustratively, the diopter of the geometric phase liquid crystal lens 601 is -5D, and the diopter of the preset lens 603 is 5D. The longitudinal chromatic aberration adjustment system 7 with the characteristics of a plano lens is suitable for people with normal eyes to prevent and control myopia. In addition, the effect of correcting myopia and eliminating longitudinal chromatic aberration can be achieved simultaneously through the simple cooperation of the longitudinal chromatic aberration adjustment system 7 and ordinary myopia correction lenses, so as to be suitable for most myopic people. It is only necessary to superimpose a longitudinal chromatic aberration adjustment system 7 with the characteristics of a plano lens on the myopia glasses used in daily life, and the flexibility of adaptation is high.

[0060] In some application scenarios, the longitudinal chromatic aberration adjustment system 7 can be set so that it itself has a certain refractive power. Specifically, the absolute value of the refractive power of the geometric phase liquid crystal lens 601 is set to be greater than the absolute value of the refractive power of the preset lens 603. At this time, the effects of correcting myopia and eliminating longitudinal chromatic aberration can be achieved simultaneously. The refractive power of the longitudinal chromatic aberration adjustment system 7 can be personalized adjusted according to the actual eye condition of the viewer without the need to combine with myopia corrective lenses. The overall structure of the longitudinal chromatic aberration adjustment system 7 is light and highly targeted.

[0061] The above arrangement is used to eliminate the longitudinal chromatic aberration entering the viewer's eyes, thereby avoiding the adverse effect of lengthening the eye axis caused by the longitudinal chromatic aberration. At the same time, the longitudinal chromatic aberration adjustment system 7 is matched with appropriate lenses to simultaneously correct myopia and eliminate longitudinal chromatic aberration according to the actual eye conditions of the viewer.

[0062] Example 2

[0063] This embodiment provides a pair of glasses, which include lenses, and the lenses include the longitudinal chromatic aberration adjustment system 7 based on the geometric phase liquid crystal lens 601 in Example 1.

[0064] Through the above-mentioned setting, the appropriate longitudinal chromatic aberration adjustment system 7 based on the geometric phase liquid crystal lens 601 is matched according to the different eye conditions of the wearer to effectively eliminate the longitudinal chromatic aberration, thereby avoiding the elongation of the eye axis caused by the longitudinal chromatic aberration, which is beneficial to the prevention and relief of myopia.

[0065] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A longitudinal chromatic aberration adjustment system based on a geometric phase liquid crystal lens, characterized in that: include: A geometric phase liquid crystal lens changes the imaging focal lengths of different bands of visible light incident on the geometric phase liquid crystal lens, and reverses the magnitude relationship of the imaging focal lengths of different visible light bands; Circular polarizer, which modulates the light incident on the circular polarizer into circular polarized light and eliminates stray light; Preset lens, combined with geometric phase liquid crystal lens to reduce optical power; After the incident light passes through the geometric phase liquid crystal lens, the circular polarizer and the preset lens, different visible light bands are imaged on the viewer's retina, eliminating longitudinal chromatic aberration.

2. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 1, characterized in that: The longitudinal chromatic aberration adjustment system based on the geometric phase liquid crystal lens also includes a sub-module, which includes the geometric phase liquid crystal lens, a circular polarizer and a preset lens. A plurality of the sub-modules are arranged in a preset manner to form the longitudinal chromatic aberration adjustment system based on the geometric phase liquid crystal lens.

3. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 1, characterized in that: The refractive power of the geometric phase liquid crystal lens is a first refractive power less than zero, the refractive power of the preset lens is a second refractive power greater than zero, and the sum of the first refractive power and the second refractive power is 0.

4. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 3, characterized in that: An absolute value of the first diopter is greater than an absolute value of the second diopter.

5. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 3, characterized in that: The first diopter ranges from -10D to -1D; the second diopter ranges from 1D to 10D.

6. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 1, characterized in that: The geometric phase liquid crystal lens comprises a photo-alignment layer and a multi-layer liquid crystal layer disposed on the photo-alignment layer; The lowermost molecules in the liquid crystal layer in contact with the photo-alignment layer are arranged in accordance with the arrangement of the molecules in the photo-alignment layer.

7. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 6, characterized in that: The molecules connected between adjacent liquid crystal layers are arranged in the same direction.

8. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 6, characterized in that: Liquid crystal molecules in the liquid crystal layer form a spiral structure along a first direction.

9. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 6, characterized in that: The angles of the molecules in the plane in the photo-alignment layer satisfy the condition Wherein f is the focal length of the geometric phase liquid crystal lens, λ is the wavelength, β(x,y) is the high-order phase term, x is the abscissa of the plane where the liquid crystal lens is located, and y is the ordinate of the plane where the liquid crystal lens is located.

10. The longitudinal chromatic aberration adjustment system based on geometric phase liquid crystal lens according to claim 2, characterized in that: The area of ​​the plane where the submodule is located is 0.25 square millimeters to 25 square millimeters.

11. A pair of glasses, comprising lenses, characterized in that: The lens includes any one of the longitudinal chromatic aberration adjustment systems based on geometric phase liquid crystal lenses as described in claims 1-10.

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