A mobile phone based 3D display and visual training device

Abstract

This invention proposes a 3D display and visual training device based on a mobile phone, comprising several lenses, a first light valve, a partition, an elastic fixing member, and a mounting slot. The first light valve and the focal plane of the lens form a first angle. The mounting slot is used to mount the mobile phone, and the elastic fixing member is used to ensure that the mobile phone's display screen is tightly fitted to the first light valve. The display screen and the focal plane form a second angle, which is equal to the first angle. The mobile phone display screen displays two corresponding entertainment images. The partition is used to separate the left and right images. Each image has pixels. This invention proposes that the display screen is tilted, and pixels at different heights in the image trigger different eye accommodations. The movement of pixels in different height areas can achieve visual training, combining entertainment and visual training. This invention also proposes to set the distance between pixels at different image heights so that the eye convergence triggered by the pixel distance is equal to the eye accommodation, effectively solving the problems of fatigue and dizziness.

Description

Technical Field

[0001] This utility model relates to the field of 3D display technology, and in particular to a 3D display and vision training device based on a mobile phone. Background Technology

[0002] 3D technology refers to the technique of binocular vision that makes objects appear three-dimensional. This technology allows us to perceive the shape, size, and spatial position of objects more realistically, thus bringing a more stunning and immersive experience. To see near objects clearly, the ciliary muscle in the eye needs to contract, increasing the curvature of the lens and thus enhancing the eye's refractive power. This allows near objects to form a clear image on the retina. This change in the eye's refractive power to see near objects clearly is called accommodation. In addition to accommodation, both eyes must simultaneously turn inward to ensure the visual axis is aligned with the object; this process is called convergence. Currently, the distance of pixels in a display is achieved simply by changes in the distance between corresponding pixels on the left and right sides, triggering changes in eye convergence. Accommodation is fixed, and prolonged use can lead to eye strain and dizziness.

[0003] Currently, mobile phones are the most common entertainment device for residents, and there is huge market demand for combining mobile phones with 3D display devices. However, existing mobile phone 3D display devices are prone to eye convergence and accommodation differences during use, leading to fatigue and dizziness.

[0004] Therefore, there is an urgent need to design a 3D display device that combines entertainment and visual training and can effectively solve the problems of fatigue and dizziness. Utility Model Content

[0005] This invention proposes a 3D display and visual training device based on a mobile phone, in order to more accurately solve the problem of fatigue and dizziness that easily occur during the use of the aforementioned 3D display device on a mobile phone.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a 3D display and vision training device based on a mobile phone, including a housing, the housing including a front housing and a rear housing, the front housing being provided with a plurality of lenses, and the rear housing being provided with a first light valve and a partition, the first light valve forming a first angle with the focal plane of the lenses;

[0008] The rear housing includes a first plane, an elastic fastener, and a mounting groove. The mounting groove is located between the first plane and the first light valve and is used to mount a mobile phone. The elastic fastener is located in the mounting groove, with one end fixedly connected to the first plane and the other end elastically abutting against the mobile phone, so that the display screen of the mobile phone is tightly fitted with the first light valve, and the display screen and the focal plane form a second angle, and the second angle is equal to the first angle.

[0009] The display screen displays an image, which includes a first image and a second image. The first image and the second image are arranged opposite to each other and separated by a partition. Each image has pixels. There is a first distance between the pixels and the lens. There is a second distance between the pixels of the first image and the pixels of the second image.

[0010] Furthermore, the length of the first distance corresponds to the height of the pixel in the image.

[0011] Furthermore, the length of the first distance corresponds to eye accommodation.

[0012] Furthermore, the length of the second distance corresponds to the eye set, such that the eye set is equal to the eye accommodation.

[0013] Furthermore, the center-to-center distance between the first and second images can be adjusted so that the center-to-center distance is equal to the interpupillary distance.

[0014] Furthermore, it includes an adjustment frame, a first adjustment component, and a second adjustment component. The first adjustment component includes a first rotary button and a first transmission mechanism. The first rotary button drives the first transmission mechanism to move the lens.

[0015] Furthermore, the adjustment frame is provided with a stop spring, which elastically abuts against the first transmission mechanism and is used to divide the movement of the lens into multiple stops, and the adjustment amount of each stop is equal.

[0016] Furthermore, it also includes a first scale, which is located to the side of the first rotary button. The first scale corresponds to the gear position, which corresponds to the degree of myopia of the eye.

[0017] Furthermore, the second adjustment component includes a second rotary button and a second transmission mechanism, wherein the second rotary button drives the second transmission mechanism to adjust the center distance between the lenses.

[0018] Furthermore, the adjustment frame is provided with a damping plate, which elastically abuts against the second rotary button and is used to quantitatively adjust the lens center distance using the second rotary button; a second scale is also provided on the side of the second rotary button, and the second scale corresponds to the adjustment range of the lens center distance.

[0019] The beneficial effects of this utility model are:

[0020] This invention proposes a 3D display and vision training device based on a mobile phone, comprising several lenses, a first light valve, an elastic fixing member, and a mounting slot. The first light valve and the focal plane of the lens form a first angle. The mounting slot is used to mount the mobile phone, and the elastic fixing member is used to ensure that the mobile phone's display screen is tightly fitted to the first light valve. The display screen and the focal plane form a second angle, which is equal to the first angle. The mobile phone display screen displays two corresponding entertainment images, each with pixels. This invention proposes that the display screen is tilted, and pixels at different heights in the image trigger different eye accommodations. The movement of pixels in different height areas can achieve visual training for myopia, amblyopia, and presbyopia, combining entertainment and visual training. This invention also proposes that the distance between corresponding pixels in the two images be set accordingly at different image heights, so that the eye convergence triggered by the pixel distance is equal to the eye accommodation, effectively solving the problems of fatigue and dizziness. Attached Figure Description

[0021] Figure 1 The principle of existing mobile phone-based 3D display devices Figure 1 ;

[0022] Figure 2 The principle of existing mobile phone-based 3D display devices Figure 2 ;

[0023] Figure 3 This is an overall structural diagram of a mobile phone-based 3D display and visual training device according to one embodiment of the present invention.

[0024] Figure 4 This is an exploded view of a mobile phone-based 3D display and visual training device according to one embodiment of the present invention.

[0025] Figure 5 This is a perspective view of the adjustment frame in one embodiment of the present invention;

[0026] Figure 6 A front view of a mobile phone-based 3D display and vision training device provided by this utility model;

[0027] Figure 7 A schematic diagram of a mobile phone-based 3D display and vision training device provided by this utility model;

[0028] Figure 8 This is a diagram of a mobile phone screen display in one embodiment of the present invention.

[0029] Labeling Explanation: 1. Rear Housing; 2. Front Housing; 3. Face Mask; 11. First Light Valve; 12. First Plane; 13. Elastic Fixing Member; 14. Mounting Slot; 15. Mobile Phone; 151. First Screen; 152. Second Screen; 153. Bottom Edge; 154. Top Edge; 16. First Dark Chamber; 17. Second Dark Chamber; 21. Lens; 22. Lens Barrel; 23. Support; 24. First Adjustment Component; 241. First Rotary Button; 242. First Transmission Mechanism; 243. First Engraving... Degree; 2421, First gear; 2422, First rack; 25, Second adjustment component; 251, Second rotary button; 252, Second transmission mechanism; 253, Second scale; 2521, Second gear; 2522, Second rack; 2523, Third rack; 26, Second light valve; 27, Third light valve; 28, Adjustment frame; 281, Gear spring; 282, Damping plate; 29, Partition; L, First distance; X, Second distance; γ, Main optical axis; y, Pixel height. Detailed Implementation

[0030] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0031] Please refer to Figure 1 and Figure 2 Accommodation refers to the process by which the ciliary muscle contracts to increase the curvature of the lens in order to see near objects clearly. This increases the eye's refractive power, allowing near objects to form a clear image on the retina. Accommodation is negatively correlated with the distance between the eye and the object. In addition to accommodation, both eyes must simultaneously turn inward to ensure the visual axis is aligned with the object; this is called convergence. In 3D displays, the perceived distance of pixels is determined by the distance between corresponding pixels on the left and right sides, which in turn affects the convergence size. Pixels are the basic elements that constitute the content of a picture, such as a flower or a blade of grass. Pixel positions are expressed using the coordinates of their geometric centers. Current technical solutions, such as... Figure 1 In the image, the display is perpendicular to the principal optical axis γ of lens 21. The display shows two images, left and right. The distance from each pixel in the image to lens 21 is L, and the focal length of lens 21 is f. The resulting eye accommodation is... The distance between pixels in the left and right frames is equal to the interpupillary distance. At this point, the eyes do not need to turn inward, resulting in zero eye convergence. In 3D display, this simulates pixels as infinitely far apart; for example... Figure 2 As shown, the distance between pixels in the left and right images is less than the interpupillary distance. At this time, both eyes need to turn inward, resulting in an eye convergence greater than zero, simulating near-field pixels. However, since the distance from the pixels in the image to lens 21 and the focal length of lens 21 remain unchanged, the resulting eye accommodation is still [missing information]. Therefore, the eye's accommodation and convergence are severely misaligned, which can lead to fatigue or fainting over time.

[0032] Please refer to Figures 3-8 This is a schematic diagram of a mobile phone-based 3D display and visual training device provided in an embodiment of the present invention. The device can be used to provide a mobile phone-based 3D display device that combines entertainment and visual training, and effectively solves the problems of fatigue and dizziness. It includes a front housing 2 and a rear housing 1. The front housing 2 is provided with a plurality of lenses 21, and the rear housing 1 is provided with a first light valve 11. The first light valve 11 and the focal plane of the lenses 21 form a first angle. The rear housing 1 includes a first plane 12, an elastic fixing member 13, and a mounting groove 14. The mounting groove 14 is located between the first plane 12 and the first light valve 11 and is used to mount a mobile phone 15. The elastic fixing member 13 is located within the mounting groove 14, with one end fixedly connected to the first plane 12 and the other end elastically abutting against the mobile phone 15, so that the display screen of the mobile phone 15 is tightly fitted with the first light valve 11, and the display screen and the focal plane form a second angle, which is equal to the first angle, and the angle is α.

[0033] In this embodiment, the convergence point of parallel light rays after refraction by lens 21 is called the focal point. The straight line passing through the centers of the two spherical surfaces of lens 21 is called the principal optical axis γ. The plane passing through the focal point and perpendicular to the principal optical axis γ is called the focal plane. The rear housing 1 includes a first light valve 11, a first plane 12, an elastic fixing member 13, and a mounting groove 14. The first light valve 11 forms a first angle with the focal plane of lens 21. The mounting groove 14 is located between the first plane 12 and the first light valve 11 and is used to mount the mobile phone 15. The elastic fixing member 13 is located in the mounting groove 14, with one end fixedly connected to the first plane 12 and the other end elastically abutting against the mobile phone 15, so that the display screen of the mobile phone 15 is tightly fitted with the first light valve 11, and the display screen forms a second angle with the focal plane. The included angle is equal to the first included angle. In a specific embodiment, the second included angle and the first included angle are both α, and α is 37°. The elastic fixing member 13 can be made of plastic sheet. The display screen displays an image, which includes a first image 151 and a second image 152. The first image 151 and the second image 152 are arranged opposite each other and separated by a partition 29. They are the same size and the center distance of the images can be adjusted until the center distance of the images is equal to the interpupillary distance of the two eyes. The first image 151 and the second image 152 are respectively provided with pixels. The horizontal distance from the pixel to the lens 21 is the first distance L. The first distance L from the pixel to the lens 21 gradually increases as the height of the image increases from the bottom edge 153 to the top edge 154. The size of eye accommodation is negatively correlated with the size of the first distance L. The eye accommodation increases with the size of the image. The pixel height in the image gradually decreases; the distance from the pixel of the first image 151 to the corresponding pixel of the second image 152 is the second distance X. The size of the eye convergence is negatively correlated with the size of the second distance X. The second distance X gradually increases with the pixel height y, and satisfies that the eye convergence caused by the second distance X is equal to the eye accommodation; the front housing 2 includes several lenses 21, several lens barrels 22, several supports 23, a first rotary button 241, a second rotary button 251, a second light valve 26, a third light valve 27, and a mask 3. The mask 3 is used to cover the human face, so that the human face can wear the device. The lenses 21 are located inside the lens barrels 22, the lens barrels 22 are located on the supports 23, and the supports 23 are movably located inside the front housing 2; the first rotary button 241 is negatively correlated with the size of the second distance X. Button 241 drives the lens barrel 22 to move forward or backward to adjust the distance between the image and the lens 21; the second rotary button 251 drives the brackets 23 to move closer or further apart to adjust the center distance between the lenses 21 until the center distance between the lenses 21 is equal to the interpupillary distance of the two eyes; the first light valve 11 is fixedly connected to the rear housing 1, and the rear housing 1 is provided with a first-stage dark chamber 16, which is used to block light from outside the display screen from entering the first-stage dark chamber 16; the second light valve 26 is located between the front housing 2 and the rear housing 1, and the front housing 2 is provided with a second-stage dark chamber 17, which is used to block diffuse light from the first-stage dark chamber 16 from entering the second-stage dark chamber 17; the third light valve 27 is located inside the lens barrel 22 and is used to block diffuse light from the second-stage dark chamber 17 from entering the lens 21;

[0034] This invention proposes tilting the display screen of mobile phone 15 to form an angle. The horizontal distance from the lens 21 to pixels at different heights from the bottom edge 153 to the top edge 154 of the display screen is different, resulting in different eye accommodation. When the display screen of mobile phone 15 displays entertainment images, the movement of pixels in different height areas of the image can achieve visual training for myopia, amblyopia, and presbyopia, effectively combining entertainment and visual training. This invention also proposes setting the distance between pixels in the two images accordingly, until the eye convergence caused by the distance between pixels at different heights from the bottom edge 153 to the top edge 154 of the image equals the eye accommodation, effectively solving the problems of fatigue and dizziness.

[0035] Please refer to Figures 3-8 The display screen displays an image, which includes a first image 151 and a second image 152. The center distance between the first image 151 and the second image 152 is adjustable until the center distance is equal to the interpupillary distance of the eyes. The first image 151 and the second image 152 are respectively provided with pixels. The horizontal distance from the pixel to the lens 21 is the first distance L, and the distance from the pixel of the first image 151 to the corresponding pixel of the second image 152 is the second distance X.

[0036] In a specific implementation: the angle between the display screen of the mobile phone 15 and the focal plane of the lens 21 is α. In one specific embodiment, α is 37°. The display screen displays an image, with a first image 151 and a second image 152 on the left and right sides, respectively. The first image 151 and the second image 152 are positioned opposite each other and separated by a partition 29. They are of equal size. In one specific embodiment, the length and height of the first image 151 and the second image 152 are both 60 mm. The center distance between the first image 151 and the second image 152 is adjustable until the center distance is equal to the interpupillary distance of the two eyes. The first image 151 and the second image 152 are respectively provided with pixels. The height of the pixel in the image is the pixel height y. In one specific embodiment, the value of y ranges from zero to 60 mm. The horizontal distance from the pixel to the lens 21 is the first distance L. The distance from the pixel of the first image 151 to the corresponding pixel of the second image 152 is the second distance X.

[0037] Please refer to Figures 3-8 The first distance L from the pixels at different heights from the bottom edge 153 to the top edge 154 of the image to the lens 21 gradually increases. The size of eye accommodation is negatively correlated with the size of the first distance L. The eye accommodation gradually decreases from the bottom edge 153 to the top edge 154 of the image.

[0038] In specific implementation: the focal length of lens 21 is f, and f is 74 mm. The image and the focal plane of lens 21 intersect at the horizontal line O-O'. The height of the image below the horizontal line O-O' is h1, and the height of the image above the horizontal line O-O' is h2. Pixels of the same height have the same horizontal distance to lens 21, while pixels of different heights have different horizontal distances to lens 21. That is, the first distance L corresponding to different pixel heights y is different. In a specific embodiment, the first distance L = 54 + y * sinα. The pixel height y at the bottom edge 153 of the image is equal to 0. At this time, the distance from the pixel to lens 21 is 54 mm. As the pixel height y increases, the first distance L gradually increases. The first distance L at the horizontal line O-O' in the image is equal to the focal length of lens 21, and the maximum value of the first distance L is greater than the focal length of lens 21. The size of eye accommodation is negatively correlated with the size of the first distance L. The eye accommodation is greatest when y is zero. Within the range of h1, the eye accommodation decreases as the pixel height y increases, until it reaches the horizontal line O-O'. At point -O', eye accommodation is zero, simulating an infinite viewing distance. Within the range from the horizontal line O-O' to the top edge of the screen (h2), the eye experiences blurred vision, also known as the foggy zone. Pixels are set to move back and forth from the bottom edge of the screen (153) to the top edge (154), causing the eye accommodation to change accordingly. This repeatedly contracts the ciliary muscle, thus providing visual training for myopia. With age, the ciliary muscle's contractile ability decreases, leading to reduced accommodation and difficulty seeing objects at close range—a phenomenon known as presbyopia. Pixels are set to move within the bottom edge of the screen (153), causing increased eye accommodation within this range, thus strengthening the ciliary muscle's contractile ability and providing visual training for presbyopia. Amblyopia refers to a condition without organic eye disease, where the corrected visual acuity is below the lower limit of normal visual acuity for children of the same age. Pixels are set to move below the horizontal line O-O', providing stimulation with a clear image, thus providing visual training for amblyopia. The phone's screen displays entertainment content, effectively combining entertainment and visual training.

[0039] Please refer to Figures 3-8 The size of the eye convergence is negatively correlated with the size of the second distance X. The second distance X gradually increases from the bottom edge 153 to the top edge 154 of the screen, and the eye convergence caused by the second distance X is equal to the eye accommodation.

[0040] In practical implementation: the perceived distance of pixels in the image is determined by the distance between corresponding pixels on the left and right sides, which in turn affects the size of the eye convergence. The size of the eye convergence is negatively correlated with the second distance X; the eye convergence decreases as the second distance X increases. When the second distance X is less than the interpupillary distance (IPD), the eye convergence is greater than zero; when the second distance X equals the IPD, the eye convergence is zero. Since eye accommodation decreases as the pixel height y increases from the bottom edge (153) to the top edge (154) of the image, to ensure that the eye convergence induced by pixels of different heights is equal to the eye accommodation, the second distance X must gradually increase from the bottom edge (153) to the top edge (154) of the image, while satisfying the following conditions: Where X is the second distance, and V d In one specific embodiment, V represents the distance from the eye to lens 21. d 15 mm, y is the pixel height, α is the angle between the display screen of the phone 15 and the focal plane of the lens 21, f is the focal length of the lens 21, P d The interpupillary distance between the two eyes is equal to the convergence and accommodation of the eyes, which effectively solves the problems of fatigue and fainting, and makes the depth of field more realistic, resulting in better entertainment and training effects.

[0041] Please refer to Figures 3-5 The front housing 2 also includes several lens barrels 22, several supports 23, a first rotary button 241 and a second rotary button 251. The lens 21 is disposed inside the lens barrel 22, the lens barrel 22 is disposed on the support 23, and the support 23 is movably disposed inside the front housing 2. The first rotary button 241 drives the lens barrel 22 to move forward or backward and is used to adjust the distance from the image to the lens 21. The second rotary button 251 drives the supports 23 to move closer or further apart and is used to adjust the center distance between the lenses 21 until the center distance between the lenses 21 is equal to the pupillary distance of the eye.

[0042] In a specific implementation: two lenses 21 are respectively installed inside two lens barrels 22, and the two lens barrels 22 are respectively installed inside two supports 23, with the supports 23 movably disposed inside the front housing 2; the front housing 2 is also provided with an adjustment frame 28, a first adjustment component 24, and a second adjustment component 25. The adjustment frame 28 includes a stop spring 281 and a damping plate 282, and the adjustment frame 28 is rotatably connected to the first rotary button 241 and the second rotary button 251 respectively. The first adjustment component 24 includes a first rotary button 241 and a first transmission mechanism 242. The first rotary button 241 drives the first transmission mechanism 242, so that the first transmission mechanism 242 drives the lens 21 to adjust back and forth; in a specific embodiment, the first transmission mechanism 242 includes a first gear 2421 and a first rack 2422, the first gear 2421 being connected to the first rotary button 241, the first gear 2421 being connected to the first rotary button 241, the first gear 2421 being connected to the first rotary button 242 ... A rack 2422 is slidably disposed above the bracket 23, and the first gear 2421 and the first rack 2422 form a rack and pinion transmission; the gear spring 281 elastically abuts against the first gear 2421 and is used to enable the first rotary button 241 to adjust the lens 21 back and forth in multiple gears, and each gear corresponds to an equal amount of adjustment of the lens 21 back and forth; the first rotary button 241 is also provided with a first scale 243 on its side, the first scale 243 corresponds to the gear, and the gear corresponds to the degree of myopia; in a specific embodiment, the first rotary button 241 adjusts the lens 21 back and forth in 4 gears, corresponding to the first scale 243 from 0 to 4, each gear representing an adjustment of 50 degrees of myopia, and by adjusting the gear, it can be used for eyes with different degrees of myopia, and the degree of adjustment of each gear is fixed, making the adjustment simpler.

[0043] The second adjustment component 25 includes a second rotary button 251 and a second transmission mechanism 252. The second rotary button 251 drives the second transmission mechanism 252 to adjust the center distance between the lenses 21. In a specific embodiment, the second transmission mechanism 252 includes a second gear 2521, a second rack 2522, and a third rack 2523. The second gear 2521 is connected to the second rotary button 251. One end of the second rack 2522 is connected to the left bracket 23, and the other end is connected to the second gear 2521. One end of the third rack 2523 is connected to the right bracket 23, and the other end is connected to the second gear 2521. The second rack 2522 and the third rack 2523 are respectively located above and below the second gear 2521. The second gear 2521 drives the second rack 2522 and the third rack 2523 to move relative to each other. The adjustment bracket 28 is equipped with a damping plate 282, which elastically abuts against the second rotary button 251 and is used to make the second rotary button 251 adjust the center distance of the lens 21 quantitatively each time. The second rotary button 251 is also provided with a second scale 253 on its side, which corresponds to the adjustment range of the center distance of the lens 21. In a specific embodiment, the second rotary button 251 adjusts the center distance of the lens 21 by 1 mm each time, and the adjustment range of the center distance of the lens 21 is 62 to 70 mm, corresponding to the second scale 253 marked as 62 to 70. The damping plate 282 makes the second rotary button 251 adjust the center distance of the lens 21 quantitatively each time, which effectively improves accuracy and convenience.

[0044] Please refer to Figures 3-7 It also includes a first light valve 11, a second light valve 26, and a third light valve 27. A primary dark chamber 16 is provided inside the rear housing 1. The first light valve 11 is fixedly connected to the rear housing 1 and is used to block light from outside the display screen from entering the primary dark chamber 16. The second light valve 26 is located between the front housing 2 and the rear housing 1. A secondary dark chamber 17 is provided inside the front housing 2. The second light valve 26 is used to block diffuse light from the primary dark chamber 16 from entering the secondary dark chamber 17. The third light valve 27 is located inside the lens barrel 22 and is used to block diffuse light from the secondary dark chamber 17 from entering the lens 21.

[0045] In specific implementation: it also includes a first light valve 11, a second light valve 26, and a third light valve 27. A primary dark chamber 16 is formed inside the rear housing 1. The first light valve 11 is fixedly connected to the rear housing 1 and is used to block light from outside the display screen from entering the primary dark chamber 16. The second light valve 26 is located between the front housing 2 and the rear housing 1. A secondary dark chamber 17 is provided inside the front housing 2. The second light valve 26 is used to block diffused light from the primary dark chamber 16 from entering the secondary dark chamber 17. The third light valve 27 is located inside the lens barrel 22 and is used to block diffused light from the secondary dark chamber 17 from entering the lens 21. Diffuse scattering refers to the phenomenon that when the surface of an object irradiated by the projected wave has a large curvature or is not smooth, its secondary radiation wave diffuses and distributes in a certain way in the angular domain. Diffuse reflection refers to the phenomenon that light projected onto a rough surface is reflected in all directions. The first light valve 11, the second light valve 26, and the third light valve 27 are set to effectively prevent various interference lights from affecting the picture.

[0046] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A mobile phone based 3D display and visual training device comprising a housing, characterized in that, The housing includes a front housing and a rear housing. The front housing is provided with a plurality of lenses, and the rear housing is provided with a first light valve and a partition. The first light valve and the focal plane of the lens form a first angle. The rear housing includes a first plane, an elastic fastener, and a mounting groove. The mounting groove is located between the first plane and the first light valve and is used to mount a mobile phone. The elastic fastener is located in the mounting groove, with one end fixedly connected to the first plane and the other end elastically abutting against the mobile phone, so that the display screen of the mobile phone is tightly fitted with the first light valve, and the display screen and the focal plane form a second angle, and the second angle is equal to the first angle. The display screen displays an image, which includes a first image and a second image. The first image and the second image are arranged opposite to each other and separated by a partition. Each image has pixels. There is a first distance between the pixels and the lens. There is a second distance between the pixels of the first image and the pixels of the second image.

2. The cell phone based 3D display and visual training device of claim 1, wherein, The length of the first distance corresponds to the height of the pixel in the image.

3. The mobile phone-based 3D display and vision training device according to claim 2, characterized in that, The length of the first distance corresponds to eye accommodation.

4. The cell phone based 3D display and vision training apparatus of claim 3, wherein, The length of the second distance corresponds to the eye set, such that the eye set is equal to the eye accommodation.

5. The cell phone based 3D display and vision training apparatus of claim 4, wherein, The center-to-center distance between the first and second frames can be adjusted so that the center-to-center distance is equal to the interpupillary distance.

6. The cell phone based 3D display and vision training apparatus of claim 5, wherein, It includes an adjustment frame, a first adjustment component, and a second adjustment component. The first adjustment component includes a first rotary button and a first transmission mechanism. The first rotary button drives the first transmission mechanism so that the first transmission mechanism drives the lens to move.

7. The cell phone based 3D display and vision training apparatus of claim 6, wherein, The adjustment frame is equipped with a stop spring, which elastically abuts against the first transmission mechanism and is used to divide the movement of the lens into multiple stops, and the adjustment amount of each stop is equal.

8. The cell phone based 3D display and vision training apparatus of claim 7, wherein, It also includes a first scale, which is located to the side of the first rotary button. The first scale corresponds to the gear position, which corresponds to the degree of myopia of the eye.

9. The cell phone based 3D display and vision training apparatus of claim 8, wherein, The second adjustment component includes a second rotary button and a second transmission mechanism. The second rotary button drives the second transmission mechanism to adjust the center distance between the lenses.

10. The cell phone based 3D display and vision training apparatus of claim 9, wherein, The adjustment frame is equipped with a damping plate, which elastically abuts against the second rotary button and is used to quantitatively adjust the center distance of the lens by the second rotary button; a second scale is also provided on the side of the second rotary button, and the second scale corresponds to the adjustment range of the center distance of the lens.

Images