An optical system

Abstract

The present application belongs to the field of optical imaging, and particularly relates to an optical system, comprising: a lens; a light source arranged towards the lens and emitting light rays; an imaging module arranged in the lens and oppositely arranged with the light source, receiving the light rays emitted by the light source and emitting, imaging in the viewer's eyes, the imaging module comprising a first surface arranged towards the viewer's eyes, the first surface being a positive focal power surface, the focal length of which is less than the focal length critical value of the optical system, so that the light rays are imaged to fall in front of the retina of the viewer's eyes through the first surface; a connecting module oppositely arranged with the light source and the imaging module respectively, propagating the light rays emitted by the light source to the imaging module. Through the above arrangement, imaging is realized in front of the viewer's retina, thereby generating a force to pull the retina to move forward, effectively inhibiting the elongation of the eye axis.

Description

Technical Field

[0001] This invention belongs to the field of optical imaging, and more specifically relates to an optical system. Background Technology

[0002] Normally, when the eyes are relaxed, parallel light rays entering the eye's refractive system focus precisely on the retina. When viewing near objects, the object's focal point falls behind the retina. The eye must adjust rapidly through the lens to ensure the focal point falls correctly on the retina. However, some people, especially those with myopia, experience accommodative lag. In these cases, the focal point falls behind the retina, meaning the eye's accommodative power is insufficient to move the focal point forward onto the retina. To achieve this, the retina senses the focal point's position and grows backward. Over time, this leads to elongation of the eye's axial length.

[0003] To suppress axial elongation, existing technologies present images with myopic defocus or peripheral defocus on a display screen to induce the viewer's eyes to focus on the image, thereby generating a force that pulls the retina forward to suppress axial elongation. However, the above scenario can only be performed using specialized imaging devices and in specific application scenarios, and is subject to time and space limitations. Summary of the Invention

[0004] The present invention is proposed based on the above-mentioned needs of the prior art. The technical problem to be solved by the present invention is to provide an optical system that facilitates the formation of defocus stimulation and inhibits axial elongation.

[0005] To address the above problems, the technical solution provided by this invention includes:

[0006] An optical system is provided, comprising: a lens; a light source disposed toward the lens and emitting light; an imaging module disposed within the lens and opposite to the light source, receiving and emitting the light emitted by the light source to form an image in a viewer's eye, the imaging module including a first surface disposed toward the viewer's eye, the first surface being a positive focal length surface with a focal length less than the focal length critical value of the optical system, such that light passes through the first surface and falls in front of the viewer's retina; and a connecting module disposed opposite to both the light source and the imaging module, transmitting the light emitted by the light source to the imaging module.

[0007] The optical system possesses a critical focal length value. When the distances between the light source, the optical system, and the converging point remain constant, it allows the focal length of the light source and the converging point to be conjugate with respect to the optical system. Since the range of eye movement is very small during viewing, the distance generated by this movement is negligible. Therefore, it can be assumed that the distances between the light source, the optical system, and the converging point remain approximately constant under the condition that the viewer is wearing lenses. This means the optical system possesses a relatively stable critical focal length value. Adjusting the focal length of the first lens to be less than the critical focal length value of the optical system shifts the converging point forward, achieving myopia control and inhibiting axial elongation. It can also regulate the focal point of the light emitted from the lens within the viewer's eye, ensuring it falls between the lens and the retina. Even if the focal point falls in front of the retina, creating a defocus stimulus, it stimulates the retina to move forward to see the image clearly, thereby effectively inhibiting axial elongation.

[0008] Preferably, the connection module includes a first lens, which includes a focusing lens; an optical fiber, which is disposed opposite to the first lens, the first lens focusing the light emitted from the light source, causing the light to couple into the optical fiber and propagate forward in the optical fiber by total internal reflection; and a collimating lens, which is disposed opposite to both the optical fiber and the imaging module, the light emitted from the optical fiber diverging onto the collimating lens, and then incident parallel to the imaging module by adjusting the collimating lens.

[0009] The above settings improve light utilization while ensuring a stable light source for the imaging module.

[0010] Preferably, the imaging module includes a preset surface, which is respectively disposed opposite to the collimating lens and the first surface. The preset surface is capable of reflecting light. Light emitted from the collimating lens is incident on the preset surface, and after reflection, it is emitted in the direction of the first surface and enters the viewer's eye through the first surface.

[0011] Preferably, the preset surface includes a first light absorption area that absorbs light incident on the first light absorption area; and a first light reflection area that reflects light incident on the first light reflection area in the direction of the first surface; the first light absorption area and the first light reflection area form a preset pattern, and an image corresponding to the preset pattern is presented in front of the viewer's retina.

[0012] The above settings are used to regulate the amount of stimulation entering the viewer's eyes, ensuring that the amount of stimulation can induce the retina to move forward, thereby inhibiting axial elongation to a certain extent.

[0013] Preferably, the optical system includes multiple imaging modules arranged around the center of the lens; and multiple connecting modules, one of which is disposed between the light source and the imaging modules, and the other connecting modules are disposed between two adjacent imaging modules on the light propagation path for light transmission.

[0014] The above settings are designed to create an additional amount of stimulation in the viewer's eyes, thereby prompting the retina to tend to move forward.

[0015] Preferably, the imaging module includes a prism group, the prism group having a second surface, which is a reflective surface; a beam splitter, which is disposed opposite to the first surface, the second surface, and the collimating lens; light rays emitted through the collimating lens are incident on the beam splitter, part of the light rays pass through the beam splitter and propagate along the original light propagation direction, and another part of the light rays are reflected by the beam splitter and incident on the second surface, where the light rays change direction and are emitted towards the first surface, and part of the light rays that pass through the beam splitter are incident on the first surface and form an image in front of the retina.

[0016] The above setup allows the light emitted from the light source to propagate under the action of the beam splitter, forming multiple pathways for light to exit into the viewer's eyes, creating multiple stimulation points in front of the retina, and inhibiting axial elongation through the defocused stimulation.

[0017] Preferably, the second surface includes a second light absorption area to absorb light incident on the second light absorption area; and a second light reflection area to reflect light incident on the second light reflection area in the direction of the first surface; the second light absorption area and the second light reflection area are distributed in a preset pattern, and an image corresponding to the preset pattern is presented in front of the viewer's retina.

[0018] The above settings are designed to ensure sufficient stimulation of the viewer's retina.

[0019] Preferably, the plurality of imaging modules are evenly arranged around the center of the lens; the connecting module connecting the plurality of imaging modules is also evenly arranged around the center of the lens.

[0020] The above settings are designed to maintain a uniform image of the optical system in front of the retina in the viewer's eye, thereby generating uniform stimulation that causes the retina to tend to move forward uniformly, thus inhibiting axial elongation.

[0021] Preferably, the prism assembly further includes a front surface, which is disposed opposite to the beam-splitting film, and the front surface is the side of the prism assembly that first receives light; and a rear surface, which is disposed opposite to the beam-splitting film, so that the light transmitted from the beam-splitting film can be transmitted to the outside of the prism assembly; the front surface and the rear surface have no optical power.

[0022] Preferably, the reflectivity of the multiple beam splitters gradually increases along the propagation path of the light.

[0023] The above settings ensure that the image formed in front of the retina has the same amount of stimulation, thus creating a uniform stimulus that effectively drives the retina forward and inhibits axial elongation.

[0024] Compared to existing technologies, this application controls the relative position of the light focal point and the retina by adjusting the optical parameters of the optical system. Specifically, by setting the focal length of the first surface to be less than the critical focal length value of the optical system, the image presented by the optical system can fall in front of the viewer's retina. This causes the retina to perceive the focal position and tend to grow forward, thereby inhibiting axial elongation and even shortening the axial length, thus preventing or reducing myopia. Simultaneously, the relative positions and optical parameters of the reflection and transmission modules are adjusted to improve the light and space utilization of the optical system. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or 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 those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 This is a front view structural diagram of an optical system according to an embodiment of this application;

[0027] Figure 2 This is a front view schematic diagram of another optical system in the embodiments of this application;

[0028] Figure 3 This is a side view schematic diagram of another optical system in an embodiment of this application;

[0029] Figure 4 This is a partially enlarged structural schematic diagram of another optical system in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the second side of another optical system in an embodiment of this application.

[0031] Figure label:

[0032] 1. Lens; 101. Inner surface; 102. Outer surface; 103. Side surface; 2. Light source; 3. Connecting module; 301. First lens; 302. Optical fiber; 303. Collimating lens; 4. Beam splitter; 5. Imaging module; 501. Front surface; 502. Internal surface; 503. Second surface; 504. Rear surface; 505. First surface; 503A. Second light reflection area; 503B. Second light absorption area; 6. Preset surface; 7. Lens; 8. Retina. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0035] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0036] To facilitate understanding of the embodiments of this application, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this application.

[0037] This embodiment provides an optical system, such as Figures 1-5 As shown.

[0038] The optical system includes a lens 1, a light source 2, an imaging module 4, and a connection module 3.

[0039] Lens 1, such as Figure 1 and Figure 2As shown, this is a myopia lens or a plano lens. The lens 1 includes an inner surface 101, an outer surface 102, and a side surface 103, with the side surface 103 arranged around the lens 1. The inner surface 101 is the side closest to the eye when the user wears the lens. The outer surface 102 is the side furthest from the eye when wearing glasses and is opposite to the inner surface 101.

[0040] Light source 2 is positioned at a predetermined location, specifically facing the side surface 103 and emitting light towards the side surface 103 of the lens 1. The light enters the lens 1 from the side surface 103 and penetrates into the lens 1. Light source 2 is located on the periphery of the lens 1. There are various ways to fix light source 2; it can be mounted on the frame or secured using clips or other structures, which will not be elaborated upon here. Light source 2 emits near-infrared light, specifically light with a wavelength of approximately 680 nm.

[0041] The connection module 3 establishes a connection between the light source and the imaging module 5, transmitting the light emitted by the light source to the imaging module 5. The connection module 3 includes a first lens 301, an optical fiber 302, and a collimating lens 303.

[0042] The first lens 301 is a focusing lens, and it is positioned opposite the light source. The dispersed light emitted by the light source reduces the amount of light entering the imaging module 5, affecting the final image stimulation. The focusing lens controls the direction of the light while ensuring efficient light utilization, thereby guaranteeing the amount of stimulation delivered to the viewer's eye by the optical system.

[0043] An optical fiber 302 is disposed opposite to the first lens 301 and is at least partially disposed within the lens, enabling light to propagate within the lens with minimal light loss via the optical fiber 302. The light converged by the first lens 301 is coupled into the optical fiber 302, where it propagates forward via total internal reflection. Specifically, the optical fiber 302 includes an inlet end and an outlet end; the inlet end is where light is coupled in, and the outlet end is where light exits from the optical fiber 302.

[0044] A collimating lens 303 is disposed inside the lens and is opposite to the exit end of the optical fiber 302. That is, the diverging light rays emitted from the exit end of the optical fiber 302 are incident on the collimating lens 303 and then emitted in parallel.

[0045] Imaging module 5 is disposed inside the lens and opposite to the connection module 3 to receive the light emitted by the connection module 3 and project it into the viewer's eyes.

[0046] The imaging module 5 includes a first surface 505, which is positioned facing the viewer's eye. The first surface 505 is a positive focal length surface, and its focal length is less than the focal length critical value of the optical system, so that light passes through the first surface 505 and falls in front of the viewer's retina 8.

[0047] The optical system possesses a focal length critical value, which refers to the focal length value that makes the light source and the convergence point conjugate with respect to the optical system when the distances between them remain constant. When a viewer uses their eyes, the range of eye movement is very small, and the distance generated by this movement is negligible. Therefore, it can be assumed that under the condition of the viewer wearing the lens, the distances between the light source, the optical system, and the convergence point remain approximately constant, meaning the optical system has a relatively stable focal length critical value. When the focal length of the first lens 505 equals the focal length critical value of the optical system, the light rays formed by the optical system will converge on the retina 8. At this time, the viewer can accurately see external objects. By adjusting the light rays emitted from the lens, the relative position of the focal point and the retina 8 can be controlled. Specifically, to achieve myopia control and inhibit axial elongation, the focal point of the light rays emitted from the lens can be adjusted to fall between the lens 7 and the retina 8 in the viewer's eye. Even if the focal point falls in front of the retina 8, forming a defocus stimulus, it stimulates the retina 8 to move forward to see the image clearly, thereby effectively inhibiting axial elongation. In order to make the light from the optical system converge in front of the retina 8, the focal length of the first surface 505 is adjusted to be less than the critical focal length value of the optical system, so as to achieve the forward movement of the convergence point.

[0048] like Figure 1 As shown, the imaging module 5 further includes a preset surface 6, which is respectively disposed opposite to the collimating lens 303 and the first surface 505. The preset surface 6 can reflect light. Light emitted from the collimating lens 303 is incident on the preset surface 6, reflected, and then emitted in the direction of the first surface 505, passing through the first surface 505 and entering the viewer's eye. The area of ​​the preset surface 6 determines the size of the image on the viewer's retina 8. After processing by the imaging module 5, a light spot will be formed in front of the viewer's retina 8. The light spot has limited stimulation to the viewer's eye, therefore a pattern needs to be set on the preset surface 6 to form stimulation. Further, the preset surface 6 includes a first light absorption area and a first light reflection area. The first light absorption area can absorb the light incident on it, and the corresponding first light reflection area can reflect the light incident on it. The first light absorption area and the first light reflection area form a preset pattern. Light incident on the preset surface 6 is processed by the preset surface 6 and then passes through the first surface 505 to form an image with a stimulation amount corresponding to the preset pattern in front of the viewer's retina 8.

[0049] The optical path of the optical system formed by the light source, the connecting module 3, and the imaging module 5 is as follows: the light emitted by the light source is incident on the first lens 301, and is coupled into the optical fiber 302 through the convergence of the first lens 301. The light propagates forward in the optical fiber 302 through total internal reflection until it exits from the exit end of the optical fiber 302. Then, the collimating lens 303 adjusts the divergent light into parallel light and enters the imaging module 5. The preset surface 6 reflects the incoming light. The light passing through the first light reflection area is non-parallel light. Through the adjustment of the first surface 505, it is emitted in the direction of the viewer's eye as nearly parallel light. After passing through the inner surface of the lens, it reaches the lens 7 of the viewer's eye and is focused in front of the retina 8 to form an image.

[0050] The optical system described above can only form a single image in the viewer's eye, and the image is located at the periphery of the eye. In order to provide uniform stimulation to the eye and generate a balanced tendency to drive the retina 8 forward, it is necessary to form multiple images that are evenly distributed at the periphery of the eye.

[0051] Therefore, further settings are required, such as... Figures 2-3 As shown, the imaging module 5 includes a prism group, which is disposed opposite to the collimating lens 303. The prism group receives the light rays that are processed by the collimating lens 303 and emitted in parallel. The prism group includes five optically effective surfaces, such as... Figure 4As shown, specifically, the five effective optical surfaces are a front surface 501, an inner surface 502, a second surface 503, a rear surface 504, and a first surface 505. The front surface 501, positioned opposite the light source, is the first surface of the prism assembly to receive light and is an optically transmitting plane with no optical power. The rear surface 504, opposite the front surface 501, receives a portion of the light entering through the front surface 501 and exits through it; the rear surface 504 is an optically transmitting plane with no optical power. The inner surface 502 is obliquely positioned within the prism assembly and has a beam-splitting film 4 attached to it. The beam-splitting film 4 reflects a portion of the incident light from the incident surface while allowing another portion of the light to pass through and exit from the other side. The second surface 503 is positioned towards the viewer's eye, meaning it simultaneously has a component pointing towards the lens's axis and a component extending from the outer side of the lens towards the inner side. Furthermore, the second surface 503 is positioned opposite the beam-splitting film 4. The second surface 503 is divided into a second light-reflecting region 503A and a second light-absorbing region 503A. The beam-splitting film 4 reflects a portion of the incident light, and the reflected light is incident on the second surface 503. The light incident on the second light-reflecting region 503A is emitted towards the viewer's eye to transmit the light to the viewer's eye; while the light incident on the light-absorbing region is absorbed. The distribution of the second light-absorbing region 503A and the second light-reflecting region 503A on the second surface 503 determines the final image entering the human eye. The area of ​​the second surface 503 determines the size of the image on the viewer's retina 8. Since a light spot is formed after prism processing, the stimulation to the viewer's eye is limited. A pattern is set on the second surface 503 to form stimulation through the pattern. For example, as shown... Figure 5 As shown, the second surface 503 is square, the second light-reflecting area 503A is cross-shaped, and the second light-absorbing area 503A is the area other than the second light-reflecting area 503A. With this configuration, the image presented in the viewer's eye after reflection from the second surface 503 is a cross-shaped image. Alternatively, it can be configured with a patterned shape. By setting the second light-reflecting area 503A and the second light-absorbing area 503A, the image size and pattern are controlled, thereby stimulating the eye and creating a force that pulls the retina 8 forward to inhibit axial elongation. The first surface 505, opposite to the second surface 503, is a surface with positive optical power. Its focal length is less than the critical focal length value of the optical system. This focal plane is located near the second surface 503, so that the light emitted from the first surface 505 is nearly parallel. After reflection by the second light-reflecting area 503A, some of the light passes through the beam splitter 4 and enters the first surface 505, then exits through the first surface 505.

[0052] The optical path of the optical system formed by the above-mentioned optical devices, light source, and light rays is as follows: Light rays emitted from the light source are incident on the first lens 301, and coupled into the optical fiber 302 through the converging effect of the first lens 301. The light rays propagate forward through total internal reflection in the optical fiber 302 until they exit from the exit end of the optical fiber 302. Then, the collimating lens 303 adjusts the divergent light rays into parallel light rays, which then enter the prism group. The beam splitter 4 in the prism group splits the incoming light rays into two paths. One path continues to propagate along the original propagation path through the beam splitter 4, while the other path is reflected by the beam splitter 4 and incident on the second surface 503. On the upper surface 503, the second light absorption area 503A on the second surface 503 absorbs light, and the second light reflection area 503A on the second surface 503 has the properties of scattering and reflecting, so as to change the propagation path of the light incident on the second light reflection area 503A and destroy the property of parallel light. The light passing through the second light reflection area 503A is non-parallel light and propagates to the beam splitter 4. The light passing through the beam splitter 4 is adjusted by the first surface 505 and emits light that is close to parallel light in the direction of the viewer's eye. After passing through the inner surface of the lens, it reaches the lens 7 of the viewer's eye and is focused in front of the retina 8 to form an image.

[0053] Furthermore, the optical system includes multiple imaging modules 5 and connecting modules 3 that establish optical path connections between the multiple imaging modules 5. The multiple imaging modules 5 are uniformly arranged around the center of the lens, and similarly, the connecting modules 3 connecting the multiple imaging modules 5 are also uniformly arranged around the center of the lens. Except for the connecting module 3 connecting the light source and the first imaging module 5, the other connecting modules 3 are arranged between two adjacent imaging modules 5.

[0054] The above setup creates a defocused stimulus around the center of the eye, allowing prisms at different positions to reflect light in different directions through their respective beam-splitting membranes 4, thus forming a uniform defocused stimulus in the viewer's eye. The contour of the resulting defocused stimulus is adapted to the viewer's retina 8, meaning it can uniformly stimulate the retina 8 at multiple locations, causing the retina 8 to uniformly tend to move forward, thereby effectively inhibiting axial elongation.

[0055] Based on the above settings, if the reflectance and transmittance of each beam splitter 4 are the same, then the stimulus amount that first enters the viewer's eye is the greatest, and the stimulus amount that last enters the viewer's eye is the least. This results in different amounts of stimulus received by the retina 8, and different areas on the retina 8 exhibit different forward-moving tendencies, leading to a poor user experience. Therefore, different reflectance and transmittance ratios are set for the beam splitter 4. The beam splitter 4 that first receives light has the lowest reflectance and transmittance ratio, meaning that only a small portion of the light is allowed to be reflected; the beam splitter 4 that last receives light has the highest reflectance and transmittance ratio, meaning that more light is allowed to be reflected. Alternatively, the beam splitter 4 that last receives light can be replaced with a total reflection mirror, which also ensures that no transmitted light interferes with the use of the glasses.

[0056] In one feasible implementation of this embodiment, such as Figure 2 As shown, the light source is positioned outside the lens and emits near-infrared light, specifically light with a wavelength of approximately 680 nm. There are eight imaging modules 5, evenly distributed around the center of the lens. There are also eight connecting modules 3, one of which is positioned between the light source and the first imaging module 5. This first imaging module 5 is the first among all imaging modules 5 to receive the light emitted by the light source. The other connecting modules 3 are positioned between adjacent imaging modules 5 along the light propagation path. The light emitted by the light source is coupled into the first optical fiber 302 through the first lens 301. After passing through the first collimating lens 303 and the first prism group, the light is split into two paths. One path forms a patterned light spot in the viewer's eye, while the other path is coupled into the next optical fiber 302 through the first lens 301 and processed by the second collimating lens 303 and the second prism group, repeating the above process. This arrangement creates a patterned light spot to increase the amount of stimulation received by the viewer's eye, thereby generating a force in the eye that inhibits axial elongation, effectively preventing and alleviating myopia. By setting the above-mentioned peripheral defocus stimulation in front of the retina 8 of the viewer's eye, the viewer is encouraged to have the desire to see the image clearly, which causes the retina 8 to move forward and inhibit the elongation of the eye axis.

[0057] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An optical system, characterized in that, include: lens; A light source is positioned towards the lens and emits light. An imaging module is disposed within the lens and positioned opposite the light source. It receives and emits light emitted by the light source to form an image in the viewer's eye. The imaging module includes a first surface facing the viewer's eye. The first surface is a positive focal length surface with a focal length less than the critical focal length value of the optical system, so that light passes through the first surface and falls in front of the viewer's retina. The imaging module includes a prism group, and the prism group includes a second surface, which is a reflective surface. A beam splitter is disposed opposite to the first surface, the second surface, and the collimating lens. Light rays emitted through the collimating lens are incident on the beam splitter. Part of the light rays pass through the beam splitter and propagate along the original light propagation direction. Another part of the light rays are reflected by the beam splitter and incident on the second surface. The light rays are redirected by the second surface and emitted towards the first surface. Part of the light rays that pass through the beam splitter are incident on the first surface and are imaged in front of the retina. A connecting module, positioned opposite to both the light source and the imaging module, propagates light emitted by the light source to the imaging module. The connecting module includes a first lens, which includes a focusing lens; an optical fiber, positioned opposite to the first lens, which converges the light emitted by the light source, couples the light into the optical fiber, and propagates it forward within the optical fiber via total internal reflection; and a collimating lens, positioned opposite to both the optical fiber and the imaging module, diverges the light output from the optical fiber and incident it onto the collimating lens, allowing it to be incident parallel to the imaging module through adjustment. The optical system includes multiple imaging modules arranged around the center of the lens; and multiple connecting modules, one of which is located between the light source and the imaging modules, and the other connecting modules are located between two adjacent imaging modules on the light propagation path for light transmission.

2. The optical system according to claim 1, characterized in that, The imaging module includes a preset surface, which is respectively disposed opposite to the collimating lens and the first surface. The preset surface can reflect light. Light emitted from the collimating lens is incident on the preset surface, and after reflection, it is emitted in the direction of the first surface and enters the viewer's eye through the first surface.

3. The optical system according to claim 2, characterized in that, The preset surface includes a first light absorption region, which absorbs light incident on the first light absorption region; and The first light reflection area reflects the light rays incident on the first light reflection area in the direction of the first surface; The first light absorption area and the first light reflection area form a preset pattern, and an image corresponding to the preset pattern is presented in front of the viewer's retina.

4. The optical system according to claim 1, characterized in that, The second surface includes a light-absorbing region to absorb light incident on the light-absorbing region; and The light-reflecting area reflects incident light rays toward the direction of the first surface. The light absorption and light reflection areas are distributed in a preset pattern, presenting an image corresponding to the preset pattern in front of the viewer's retina.

5. The optical system according to claim 1, characterized in that, Multiple imaging modules are evenly arranged around the center of the lens; the connecting modules that connect the multiple imaging modules are also evenly arranged around the center of the lens.

6. The optical system according to claim 1, characterized in that, The prism assembly also includes a front surface, which is disposed opposite to the beam-splitting film, and the front surface is the side of the prism assembly that first receives light; and a rear surface, which is disposed opposite to the beam-splitting film, so that the light transmitted from the beam-splitting film can be transmitted to the outside of the prism assembly; the front surface and the rear surface have no optical power.

7. The optical system according to claim 1, characterized in that, The reflectivity of multiple beam splitters gradually increases along the propagation path of light.

Images