Desktop reading system

Abstract

The utility model belongs to the field of optical imaging, and particularly relates to a desktop reading system, which comprises a desktop on which a read object is placed; the first reflecting part is arranged above the table top and is opposite to the table top, ambient light is reflected by a read object through the diffuse reflection characteristic to be emitted to the first reflecting part, and then the ambient light is reflected by the first reflecting part; the second reflecting part is arranged in front of the table top and is opposite to the first reflecting part, and the light reflected by the first reflecting part is emitted to the second reflecting part, is reflected again by the second reflecting part and is emitted to an exit pupil; a viewer sits behind the desktop, corresponds to the exit pupil position, and receives a finally formed image of the read object with the first focal plane depth.

Description

Technical Field

[0001] The utility model belongs to the field of optical imaging, and in particular relates to a desktop reading system. Background Art

[0002] Studying at a desk for a long time will cause eye pressure. If the desk posture is incorrect and the eyes are too close to the desk, it will cause myopia.

[0003] In addition, the degree of adjustment of the distance between the eyes and the desk is limited. Even if the eyes are as far away from the desk as possible while being able to see clearly, the adjustable range for reading and writing is not too large. In addition, during the learning process, the desk posture will not be paid attention to in real time. As time accumulates, the desk posture will change, and the autonomy to change the posture when the desk posture changes is also low. Utility Model Content

[0004] The utility model is proposed based on the above-mentioned demand of the prior art. The technical problem to be solved by the utility model is to provide a desktop reading system to maintain the distance between the desk user and the desktop reading material.

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

[0006] A desktop reading system is provided, comprising: a desktop, on which a reading object is placed; a first reflector, arranged above the desktop and opposite to the desktop, the reading object reflects ambient light through diffuse reflection characteristics to the first reflector, and then reflects it by the first reflector; a second reflector, arranged in front of the desktop and opposite to the first reflector, the light reflected by the first reflector is emitted to the second reflector, and is reflected again by the second reflector and emitted to the exit pupil; a viewer sits behind the desktop and corresponds to the exit pupil position, and receives the finally formed image of the reading object with a first focal plane depth.

[0007] Through the above arrangement, an image is formed at a certain distance from the viewer's eyes, and the distance between the image and the viewer does not substantially change as the viewer approaches the table, that is, a suitable viewing distance can be maintained, which is beneficial to the prevention and control of myopia.

[0008] Preferably, the first reflector includes a central area and a peripheral area surrounding the central area, the central area corresponds to the central field of view of the viewer, and the peripheral area corresponds to the peripheral field of view of the viewer; a first lens or a first recess with reflective ability is arranged in the peripheral area of ​​the first reflector; the viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a depth greater than the first focal plane depth transmitted by the first lens or the first recess in the peripheral field of view, thereby forming a peripheral myopia defocus stimulation.

[0009] The above arrangement ensures normal imaging of the central visual field of the viewer, while forming myopic defocus stimulation in the peripheral visual field, that is, the image corresponding to the peripheral visual field will fall in front of the viewer's retina, so that the eye tends to see the image in front of the retina clearly, thereby keeping the eye axis tight and preventing it from moving backward, effectively inhibiting the elongation of the eye axis, and playing a role in preventing and controlling myopia. The first lens and the first depression with a reflective function can produce the same effect on light.

[0010] Preferably, the second reflector includes a central area and a peripheral area surrounding the central area, the central area corresponds to the viewer's central field of view, and the peripheral area corresponds to the viewer's peripheral field of view; a second lens or a second recess with reflective ability is arranged in the peripheral area of ​​the second reflector; the viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a depth greater than the first focal plane depth transmitted by the second lens or the second recess in the peripheral field of view, thereby forming a peripheral myopia defocus stimulation.

[0011] The above-mentioned setting ensures normal imaging of the viewer's central visual field, while forming myopic defocus stimulation in the peripheral visual field, that is, the image corresponding to the peripheral visual field will fall in front of the viewer's retina, making the eye tend to see the image in front of the retina clearly, thereby keeping the eye axis taut and preventing backward movement, effectively inhibiting the elongation of the eye axis and playing a role in preventing and controlling myopia.

[0012] Preferably, the first reflector and the second reflector both have a central area and a surrounding area, which correspond to the central field of view and the surrounding field of view of the viewer respectively; a first lens or a second recess capable of reflecting light is arranged in the surrounding area of ​​the first reflector; a second lens or a second recess capable of reflecting light is arranged in the surrounding area of ​​the second reflector, and the first lens or the first recess and the second lens or the second recess are arranged relatively to each other; the viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a depth greater than the first focal plane in which the first lens or the first recess and the second lens or the second recess participate simultaneously in the peripheral field of view, thereby forming a peripheral myopia defocus stimulation.

[0013] The above-mentioned setting ensures normal imaging of the viewer's central visual field, while forming myopic defocus stimulation in the peripheral visual field, that is, the image corresponding to the peripheral visual field will fall in front of the viewer's retina, making the eye tend to see the image in front of the retina clearly, thereby keeping the eye axis taut and preventing backward movement, effectively inhibiting the elongation of the eye axis and playing a role in preventing and controlling myopia.

[0014] Preferably, the first lens or the first recess and the second lens or the second recess are relatively arranged such that the light passing through the first lens or the first recess also passes through the second lens or the second recess.

[0015] The above is done to ensure imaging of the surrounding field of view and prevent imaging disorder.

[0016] Preferably, multiple first lenses or first recesses are arranged circumferentially with the center of the first reflector as the center of the circle; multiple second lenses or second recesses are arranged circumferentially with the center of the second reflector as the center of the circle; when multiple first lenses or first recesses have different focal lengths, and multiple second lenses or second recesses have different focal lengths, a specific first lens or first recess and a corresponding specific second lens or second recess are arranged relative to each other, so that light passing through the specific first lens or first recess also passes through the corresponding specific second lens or second recess.

[0017] The above is done to ensure imaging of the surrounding field of view and prevent imaging disorder.

[0018] Preferably, the central field of view corresponds to a field of view range of 0° to 10°, and the peripheral field of view corresponds to a field of view range of 10° to 15°.

[0019] Preferably, based on the desktop reading system, a circle is established with the center of the exit pupil as the center, the upward direction of the desktop as the Y axis, the direction parallel to the front of the desktop as the Z axis, and the direction perpendicular to the YOZ plane as the X axis; the distance range from the center of the first reflector to the XOY plane is 300mm~450mm; the eccentricity range of the first reflector in the Y direction is 180mm~280mm; the acute angle range between the section at the center of the first reflector and the XOY plane is 60°~80°.

[0020] Preferably, the distance range from the center of the second reflector to the XOY plane is 500mm~700mm; the eccentricity range of the second reflector in the Y direction is ±20mm, and the acute angle range between the plane where the second reflector is located or the tangent surface of the second reflector and the XOY plane is 20°~40°.

[0021] Preferably, the distance from the center of the desktop to the XOY plane ranges from 300 mm to 500 mm; the eccentricity range of the desktop in the Y direction ranges from 320 mm to 520 mm, and the inclination angle of the desktop to the horizontal plane is less than 5 degrees.

[0022] Compared with the prior art, the image formed by the desktop reading optical system formed by the utility model is at a longer distance from the eye, and this distance can be ignored compared to the viewer moving closer. In addition, on this basis, a lens is introduced into the desktop reading optical system, specifically placed in the peripheral field of view area corresponding to the first reflector and / or the second reflector and the exit pupil, so that the light passing through the lens will be imaged in front of the viewer's retina. Under the premise of ensuring that the imaging in the central field of view is normal, that is, not affecting the viewer's effect, the eye axis generates a force to move forward under the drive of the myopic defocus stimulation formed by the peripheral field of view, effectively preventing and controlling myopia. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a schematic diagram of the optical path structure of the desktop reading system in the embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of a desktop reading system provided with a first lens in an embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the arrangement of the first lens on the first reflector or the second lens on the second reflector in an embodiment of the utility model;

[0027] Figure 4 It is a structural schematic diagram of a desktop reading system provided with a second lens in an embodiment of the utility model;

[0028] Figure 5 A schematic diagram of a reference coordinate system of a desktop reading system in an embodiment of the present utility model;

[0029] Figure 6 A schematic diagram of the relative position structure of optical elements in a feasible implementation scheme in an embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the relative position structure of optical elements in another feasible implementation scheme in the embodiment of the utility model;

[0031] Figure 8 This is a schematic diagram of the relative position structure of optical elements in another feasible implementation scheme in the embodiment of the utility model;

[0032] Fig. 9 It is a schematic diagram of the first reflective element and the first recess or the second reflective element and the second recess in the embodiment of the utility model.

[0033] Reference numerals:

[0034] 1. Exit pupil; 2. Second reflector; 3. First reflector; 4. Desktop; 5. First lens; 6. Second lens. DETAILED DESCRIPTION

[0035] 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.

[0036] In the description of the embodiments of the present utility model, 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 can be a mechanical connection, or an electrical connection can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] 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.

[0038] To facilitate understanding of the embodiments of the present application, the following will further explain and illustrate specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0039] This embodiment provides a desktop reading system, such as Figure 1-Figure 8 shown.

[0040] like Figure 1 As shown, the desktop reading system includes a desktop 4, a first reflective member 3 and a second reflective member 2.

[0041] The desktop 4 is used for placing reading materials, and the desktop 4 is placed substantially horizontally.

[0042] The first reflector 3 is arranged opposite to the desktop 4. Specifically, the first reflector 3 is arranged above the desktop 4, a reading material is placed on the desktop 4, and the surface of the reading material has diffuse reflectivity and can reflect the received ambient light. The first reflector 3 is arranged opposite to the desktop 4 so that the diffusely reflected ambient light can be incident on the first reflector 3.

[0043] The first reflector 3 may be a reflector, or an optical element with a reflective film coated on the surface.

[0044] The second reflector 2 is arranged opposite to the first reflector 3. Specifically, the second reflector 2 is arranged in front of the desktop 4 or in the upper area of ​​the front position. After the light diffusely reflected by the reading material is incident on the first reflector 3, it is reflected and emitted toward the second reflector 2. After being reflected by the second reflector 2, the light is emitted toward the exit pupil 1 of the desktop reading system to form an image 9, which is received by the viewer.

[0045] Furthermore, a lens or a recess is provided on one of the first reflective member and the second reflective member, and the recess has a reflective surface capable of reflecting light.

[0046] For example, Figure 2-Figure 4 As shown, a lens is disposed on one of the first reflector 3 and the second reflector 2. Figure 3 As shown, the first reflector 3 and the second reflector 2 both include a central area and a peripheral area, corresponding to the central field of view and the peripheral field of view of the viewer. The central field of view is the field of view range of 0° to 10° at the exit pupil 1, and the peripheral field of view is the field of view range of 10° to 15° at the exit pupil 1. To ensure that the optical path is clearly represented in the figure, that is, the light passing through the central area and the light passing through the lens can be clearly seen, Figure 2 and Figure 4 The first reflector and the second reflector in the apparatus omit part of the lens to leave a central area free. The light passing through the central area will form an image normally in the central field of view, and the formed image has a first focal plane depth, while the light passing through the peripheral field of view will form an image with a depth less than the first focal plane in the peripheral field of view, forming a myopic defocus stimulus. The first focal plane depth is greater than 2m. In other words, the light diffusely scattered by the reading material will be imaged in front of the viewer's retina through transmission and reflection of the lens, forming a stimulus that prompts the viewer to want to see the surrounding images clearly, which can drive the eye axis forward to a certain extent, or keep the eye axis at its current position to prevent the eye axis from moving backward to form myopia.

[0047] The same effect can be achieved by using a concave reflecting surface instead of the above-mentioned lens.

[0048] For example, the first lens is annular and arranged around the center of the first reflector, or multiple circles of annular first lenses can be arranged. Or multiple first lenses are arranged circumferentially in a circle with the center of the first reflector as a circle. When multiple first lenses are distributed axially, the distance between adjacent first lenses 5 is the same. Further, the focal length of each first lens 5 can be the same or different. Further, multiple first lenses can form a multi-layer array distributed along the circumferential direction. Similarly, the first recess can be used to replace the above-mentioned first lens for light processing, or the first recess and the first lens can be allowed to be arranged in the surrounding area at the same time.

[0049] like Figure 2As shown, for the light forming the central field of view, refer to the illustrated light La, the diffusely reflected light from the reading material is reflected by the first reflector 3 and the second reflector 2 in sequence, and enters the central field of view of the viewer. For the light forming the peripheral field of view, refer to the illustrated light Lb1 and Lb2, the diffusely reflected light from the reading material is transmitted by the first lens 5, reflected by the first reflector 3, transmitted by the first lens 5, and reflected by the second reflector 2 in sequence, and enters the peripheral field of view of the viewer. Among them, the light that has not passed through the lens, that is, the light that forms the central field of view, will form a virtual image A located on the right side of the desktop reading system (the virtual image A is located in front of the desktop 4); the light that has passed through the lens, that is, the light that forms the peripheral field of view, will form a virtual image B located on the right side of the desktop reading system (the virtual image B is located behind the desktop 4).

[0050] Alternatively, the second lens is arranged in the same manner as the first lens, and similarly, the second recess may be used to replace the second lens for light processing, or the second recess and the second lens may be arranged simultaneously in the surrounding area.

[0051] In addition, lenses or recesses may be provided on both the first reflector 3 and the second reflector 2. The first lens 5 and the second lens 6 need to be arranged opposite to each other, that is, the light of the first lens 5 passes through the second lens 6.

[0052] Furthermore, a plurality of first lenses are arranged circumferentially with the center of the first reflector as the center of the circle; when the plurality of first lenses have different focal lengths, and the plurality of second lenses have different focal lengths, a specific first lens and a corresponding specific second lens are arranged relative to each other, so that the light passing through the specific first lens also passes through the corresponding specific second lens. That is, the specific first lens 5 and the second lens 6 are arranged one-to-one. The arrangement of the corresponding first recess is similar to that of the first lens, or the first lens and the first recess are used simultaneously to perform the above arrangement.

[0053] Here is a feasible corresponding combination method, a lens is set on one of the first reflector 3 and the second reflector 2, and a recess is set at the corresponding position of the other one. The setting of the lens is consistent with the above, and will not be described here. The lens and the recess are set correspondingly, that is, the light passing through the lens will pass through the recess, or the light passing through the recess will pass through the lens. The setting of the corresponding second recess is similar to the setting of the second lens, or the second lens and the second recess are used at the same time to perform the above arrangement.

[0054] Specifically, when the first lens 5 is arranged on the first reflector 3, the second recess is arranged on the second reflector 2, and the first lens 5 and the first recess are arranged. The highest point of the second recess coincides with the plane of the second reflector 2, that is, a groove that is recessed downwards at the corresponding position of the plane where the second reflector 2 is located forms a concave reflecting surface. Correspondingly, when the second lens 6 is arranged on the second reflector 2, the first recess is arranged on the first reflector 3. The arrangement of the first recess is similar to that of the second recess. Fig. 9 As shown, the depression thereon represents the first depression or the second depression. In order to clearly show the relative positional relationship between the depression and the reflector, part of the depression is omitted in the side view to leave the central area empty.

[0055] In order to better describe the specific positional relationship of the optical elements in the desktop reading system, as shown in FIG. Figure 5 As shown, the following reference coordinate system is established, with the center of the exit pupil 1 as the origin, the horizontal forward direction as the Z axis, and the Z axis is parallel to the plane where the desktop 4 is located, the Y axis is perpendicular to the plane where the desktop 4 is located, and the direction perpendicular to the YOZ plane is the X axis.

[0056] The distance from the center of the second reflector 2 to the XOY plane is in the range of 500 mm to 700 mm. The eccentricity range of the second reflector 2 in the Y direction is ±20 mm; the acute angle between the plane where the second reflector 2 is located or its section (a section if the optically effective surface of the second reflector 2 is a spherical surface, an aspherical surface or a free-form surface) and the XOY plane is in the range of 20° to 40°.

[0057] The distance range from the center of the first reflector 3 to the XOY plane is 300mm~450mm; the eccentricity range of the first reflector 3 in the Y direction is 180mm~280mm; the acute angle range between the plane where the first reflector 3 is located or its section (if the optically effective surface of the first reflector 3 is a spherical surface, an aspherical surface or a free-form surface) and the XOY plane is 60°~80°.

[0058] The distance from the center of the desktop 4 to the XOY plane ranges from 300 mm to 500 mm, and the eccentricity range of the desktop 4 in the Y direction ranges from 320 mm to 520 mm. The desktop 4 is nearly horizontal, and the inclination angle is less than 5 degrees.

[0059] Based on the above description, when observing from the exit pupil 1, the diagonal field of view of the desktop reading system is not less than 30°, and the diameter of the exit pupil 1 is greater than 100mm×60mm. The image of the central field of view formed by the desktop reading system should be located in front of the desktop 4, and the distance from the exit pupil 1 should be greater than 2000mm; the image plane of the peripheral field of view formed by the desktop reading system should be located behind the optical desktop 4, and the distance from the exit pupil 1 should be greater than 300mm.

[0060] In a feasible specific implementation scheme of this embodiment, as Figure 6 As shown, the field of view of the desktop reading system is 40°, the diameter of the exit pupil 1 is 120 mm×60 mm, and the depth of the focal plane is -5000 mm. Table 1 below shows the parameters of the desktop reading system of this embodiment.

[0061] Table 1 Desktop reading system parameters

[0062] Optical Surface Surface type Radius of curvature thickness Surface properties Eccentric type α Tilt picture Spherical unlimited -5000.0 refraction / / Exit pupil Spherical unlimited 460.0 refraction / / The second reflector Free-form surface -1492.3 -289.0 reflection Eccentricity and bending -17.9 The first reflector Spherical unlimited 500.3 reflection Eccentricity and bending -24.6 desktop Spherical unlimited / refraction Eccentricity and regression -29.6

[0063] Among the above surfaces, the surface that constitutes the sphere satisfies the equation: c is the inverse of the radius of curvature, and r is the radial distance of a point on the surface. The surface constituting the free-form surface satisfies the equation: c is the inverse of the radius of curvature, r is the radial distance of a point on the surface, k is the quadratic constant, C i are the coefficients of the higher-order terms.

[0064] The free surface coefficient of the surface of the second reflector 2 is shown in Table 2.

[0065] Table 2 Free surface coefficients of the second reflector

[0066]

[0067]

[0068] In another feasible specific implementation scheme of this embodiment, as Figure 7 As shown, the field of view of the desktop reading system is 40°, the diameter of the exit pupil 1 is 120 mm×60 mm, and the depth of the focal plane is -5000 mm. Table 3 below shows the parameters of the desktop reading system of this embodiment. Table 4 shows the free surface coefficient of the surface of the first reflector 3.

[0069] Table 3 Desktop reading system parameters

[0070] Optical Surface Surface type Radius of curvature thickness Surface properties Eccentric type α Tilt picture Spherical unlimited -5000.0 refraction / / Exit pupil Spherical unlimited 616.9 refraction / / The second reflector Spherical unlimited -304.5 reflection Eccentricity and bending -22.3 The first reflector Free-form surface 1228.92 631.8 reflection Eccentricity and bending -25.2 desktop Spherical unlimited / refraction Eccentricity and regression 5

[0071] Table 4 Free surface coefficients of the first reflector

[0072]

[0073] In another feasible specific implementation of this embodiment, as Figure 8 As shown, the field of view of the desktop reading system is 40°, the diameter of the exit pupil 1 is 120 mm×60 mm, and the depth of the focal plane is -5000 mm. Table 5 below shows the parameters of the desktop reading system of this embodiment. Table 6 shows the free surface coefficients of the first reflector 3 and the second reflector 2.

[0074] Table 5 Desktop reading system parameters

[0075] Optical Surface Surface type Radius of curvature thickness Surface properties Eccentric type α Tilt picture Spherical unlimited -5000 refraction / / Exit pupil Spherical unlimited 524.81 refraction / / The second reflector Free-form surface -1656.87 -244.34 reflection Eccentricity and bending -19.2 The first reflector Free-form surface -10768.88 489.78 reflection Eccentricity and bending -25.9 desktop Spherical unlimited / refraction Eccentricity and regression 0.227

[0076] Table 6 Free surface coefficients of the first reflector and the second reflector surface

[0077]

[0078] Through the above-mentioned arrangement, a normal image can be formed in the central visual field, as well as a stimulating image with myopic defocus in the peripheral visual field. That is, myopic defocus stimulation is formed on the basis of ensuring normal imaging to maintain the position of the eye axis or generate a force to pull the eye axis forward, thereby preventing and controlling myopia or alleviating the degree of myopia and relieving eye fatigue.

[0079] 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 desktop reading system, characterized in that: include: A desktop, on which the reading material is placed; A first reflector is disposed above the tabletop and opposite to the tabletop, and the object being read reflects ambient light through diffuse reflection characteristics and emits it toward the first reflector, and then is reflected by the first reflector; A second reflector is arranged in front of the desktop and opposite to the first reflector. The light reflected by the first reflector is emitted toward the second reflector and is reflected again by the second reflector to be emitted toward the exit pupil. The viewer sits behind the desktop corresponding to the exit pupil position and receives the finally formed image of the object to be read with a first focal plane depth.

2. The desktop reading system according to claim 1, characterized in that: The first reflective member includes a central area and a peripheral area surrounding the central area, wherein the central area corresponds to the central field of view of the viewer, and the peripheral area corresponds to the peripheral field of view of the viewer; A first lens or a first recess having a reflective capability is arranged in the surrounding area of ​​the first reflective member; The viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a focal plane depth greater than the first focal plane depth transmitted by the first lens or the first recess in the peripheral field of view, forming a peripheral myopia defocus stimulus.

3. The desktop reading system according to claim 1, characterized in that: The second reflective member includes a central area and a peripheral area surrounding the central area, wherein the central area corresponds to the central field of view of the viewer, and the peripheral area corresponds to the peripheral field of view of the viewer; A second lens or a second recess having a reflective capability is arranged in the surrounding area of ​​the second reflective member; The viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a focal plane depth greater than the first focal plane depth transmitted by the second lens or the second recess in the peripheral field of view, forming a peripheral myopia defocus stimulus.

4. The desktop reading system according to claim 1, characterized in that: The first reflector and the second reflector both have a central area and a peripheral area, and the central area and the peripheral area correspond to the central field of view and the peripheral field of view of the viewer respectively; A first lens or a second recess capable of reflecting light is arranged in the surrounding area of ​​the first reflector; a second lens or a second recess capable of reflecting light is arranged in the surrounding area of ​​the second reflector, and the first lens or the first recess and the second lens or the second recess are arranged opposite to each other; The viewer receives an image with a first focal plane depth in the central field of view, and receives an image with a focal plane depth greater than the first focal plane depth simultaneously participated by the first lens or the first depression and the second lens or the second depression in the peripheral field of view, forming a peripheral myopia defocus stimulus.

5. The desktop reading system according to claim 4, characterized in that: The first lens or the first recess and the second lens or the second recess are arranged relative to each other, and the light passing through the first lens or the first recess also passes through the second lens or the second recess.

6. The desktop reading system according to claim 5, characterized in that: A plurality of first lenses or first recesses are arranged circumferentially with the center of the first reflector as the center of the circle; A plurality of second lenses or second recesses are arranged circumferentially with the center of the second reflector as the center of the circle; When multiple first lenses or first recesses have different focal lengths, and multiple second lenses or second recesses have different focal lengths, a specific first lens or first recess and a corresponding specific second lens or second recess are arranged relative to each other, so that light passing through the specific first lens or first recess also passes through the corresponding specific second lens or second recess.

7. The desktop reading system according to claim 2, 3 or 5, characterized in that: The central field of view corresponds to a field of view range of 0° to 10°, and the peripheral field of view corresponds to a field of view range of 10° to 15°.

8. The desktop reading system according to claim 1, characterized in that: Based on the desktop reading system, the center of the exit pupil is established as the origin, the direction of the desktop upward is the Y axis, the direction parallel to the desktop forward is the Z axis, and the direction perpendicular to the YOZ plane is the X axis; The distance range from the center of the first reflector to the XOY plane is 300mm to 450mm; the eccentricity range of the first reflector in the Y direction is 180mm to 280mm; the acute angle range between the section at the center of the first reflector and the XOY plane is 60° to 80°.

9. The desktop reading system according to claim 8, characterized in that: The distance from the center of the second reflector to the XOY plane ranges from 500 mm to 700 mm; the eccentricity range of the second reflector in the Y direction is ±20 mm, and the acute angle range between the tangent plane at the center of the second reflector and the XOY plane is 20° to 40°.

10. The desktop reading system according to claim 8, characterized in that: The distance from the center of the desktop to the XOY plane ranges from 300 mm to 500 mm; the eccentricity range of the desktop in the Y direction ranges from 320 mm to 520 mm, and the inclination angle between the desktop and the horizontal plane is less than 5 degrees.

Images