Adjustable remote image optical reader-writer

Abstract

The utility model relates to an adjustable far-image optical reader-writer comprising a box body, and the bottom surface and the front side surface of the box body are transparent. The semi-reflecting and semi-transmitting mirror is arranged in the box body, and the surface, plated with a semi-reflecting and semi-transmitting film, of the semi-reflecting and semi-transmitting mirror is downwards and backwards obliquely arranged; and the reflecting mirror is rotationally arranged in the box body and is positioned behind the semi-reflecting and semi-transmitting mirror, and the reflecting mirror is used for adjusting the angle of the reflecting mirror relative to the semi-reflecting and semi-transmitting mirror on a vertical plane. According to the utility model, the angle of the reflector can be flexibly adjusted according to individual differences of users, thereby ensuring that the users can obtain the best visual field effect during use.

Description

Technical Field

[0001] The utility model relates to the technical field, and particularly relates to an adjustable far-image optical reader and writer. Background Art

[0002] Excessive near-eye use is an important cause of the development of myopia in children. In the prior art, changing a near-distance object into a far-distance virtual image through an optical method, that is, an optical distance-pulling device, is an effective means for preventing and controlling myopia. Currently, optical readers and writers based on the above optical principle have emerged on the market. For example, the utility model patent with the authorization announcement number CN207575330U discloses an open-field long-distance optical reader and writer. The light of the illumination source fully illuminates a book or a screen. The light emitted from the book or the screen passes through a semi-transparent and semi-reflective lens and reaches the concave mirror at the rear. After being reflected by the concave mirror, it passes through the semi-transparent and semi-reflective lens again and enters the human eye, thereby realizing the magnification and distance-pulling of the field of view.

[0003] In the actual use process of the above far-image optical reader and writer, there are some problems. Due to the different heights and sitting postures of users, the viewing angles of the light that passes through the concave mirror and then passes through the semi-transparent and semi-reflective lens and enters the human eye are also different, resulting in the deviation of the field of view position and affecting the use experience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable far-image optical reader and writer to solve the above problems existing in the current optical reader and writer.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The adjustable far-image optical reader and writer includes a box body, the bottom surface and the front side surface of the box body are both transparent; a semi-transparent and semi-reflective lens, the semi-transparent and semi-reflective lens is arranged in the box body, and the surface of the semi-transparent and semi-reflective lens coated with a semi-transparent and semi-reflective film is downward and backward inclined; a reflecting mirror, the reflecting mirror is rotatably arranged in the box body and is located behind the semi-transparent and semi-reflective lens, and the reflecting mirror is used to adjust the angle of the reflecting mirror relative to the semi-transparent and semi-reflective lens in a vertical plane.

[0007] Further, the top of the reflecting mirror is rotatably arranged in the box body.

[0008] Further, the bottom of the reflecting mirror is rotatably arranged in the box body.

[0009] Further, the middle part of the reflecting mirror is rotatably arranged in the box body.

[0010] Further, the mirror is rotatably arranged in the box body through a rotating shaft. The mirror is connected with a rotating handle, and the rotating handle is located outside the box body. The rotation of the rotating handle is used to drive the mirror to adjust the angle.

[0011] Further, the mirror includes a plane mirror, and the plane mirror is rotatably arranged in the box body.

[0012] Further, the mirror includes a concave mirror, and the concave mirror is rotatably arranged in the box body.

[0013] Further, the mirror includes a concave mirror and a plane mirror. The concave mirror and the plane mirror are arranged opposite to each other, and the middle part of the mirror is rotatably arranged in the box body.

[0014] Further, it further includes a mirror frame. The concave mirror and the plane mirror are arranged opposite to each other in the mirror frame, and the middle part of the mirror frame is rotatably arranged in the box body.

[0015] Further, drawable members are arranged on the left and right inner walls of the box body. The mirror is rotatably arranged on the drawable members, and the mirror is used to move backward along the drawable members to avoid the semi-transmissive and semi-reflective lens during the flipping process.

[0016] Advantages of the present utility model:

[0017] For the adjustable long-distance image optical reading and writing device of the present utility model, since the mirror can be rotatably arranged in the box body and is located behind the semi-transmissive and semi-reflective lens, users can flexibly adjust the angle of the mirror according to their own height and sitting posture, thereby greatly improving the adaptability and use comfort of the device. No matter how the body posture of the user changes, a clear long-distance image field of view can be obtained through simple adjustment. The visual needs and habits of each user may be different. Through the adjustable design, users can adjust the angle of the mirror according to their own visual preferences to achieve personalized visual settings and enhance the use experience. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of the mirror of the adjustable long-distance image optical reading and writing device of the present utility model, which is a combination of a concave mirror and a plane mirror;

[0019] Figure 2 is Figure 1 a schematic structural diagram from another angle;

[0020] Figure 3 is a schematic structural diagram of the mirror in the adjustable long-distance image optical reading and writing device of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the mirror of the adjustable long-distance image optical reading and writing device of the present utility model, which is a concave mirror;

[0022] Figure 5 It is a schematic structural diagram of the reflecting mirror of the adjustable long-distance imaging optical reading and writing device of the present utility model being a plane mirror;

[0023] Figure 6 It is a schematic structural diagram of the adjustable long-distance imaging optical reading and writing device of the present utility model provided with a pulling member;

[0024] Figure 7 It is the optical principle diagram of the present utility model;

[0025] Figure 8 It is a schematic diagram of the angle of the reflecting mirror under normal viewing angle;

[0026] Figure 9 It is a schematic diagram of the angle of the reflecting mirror under a top-down viewing angle;

[0027] Figure 10 It is a schematic diagram of the angle of the reflecting mirror under a bottom-up viewing angle.

[0028] The names corresponding to the respective marks in the figure:

[0029] 1. Cabinet,

[0030] 2. Semi-transmissive and semi-reflective lens,

[0031] 3. Reflecting mirror, 31. Concave mirror, 32. Plane mirror,

[0032] 4. Rotating handle,

[0033] 5. Frame,

[0034] 6. Pulling member,

[0035] 7. Lighting source.

[0036] 8. Book or screen. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0038] Please refer to the attached Figure 1 - Figure 6 , this embodiment provides an adjustable long-distance imaging optical reading and writing device, including: a cabinet 1, a semi-transmissive and semi-reflective lens 2, and a reflecting mirror 3.

[0039] The cabinet 1 serves as the basic structure of the entire device, and its bottom surface and front side are both designed to be transparent to facilitate the entry of light and the observation by the user. Such a design can ensure that the user can clearly see the image reflected by the reflecting mirror 3 during use. In actual use, a transparent cover plate can be provided on the bottom surface and front side of the cabinet, or it can be directly hollowed out to ensure its light transmission.

[0040] The semi-transparent and semi-reflective lens 2 is disposed in the box body 1. It is characterized in that the side coated with the semi-transparent and semi-reflective film faces downward and is inclined backward at a certain angle. The function of the semi-transparent and semi-reflective lens 2 is to allow part of the light to pass through while reflecting the other part of the light. It is a key component for realizing the observation of a distant image. At the same time, a downward-irradiating illumination light source 7 is disposed below the semi-transparent and semi-reflective lens 2 in the box body 1.

[0041] As Figure 7 shown, it is the optical path schematic diagram of the present utility model. The book or screen 8 is illuminated by the illumination light source 7, and the emitted light is reflected by the semi-transparent and semi-reflective lens and reaches the reflecting mirror. The reflected light enters the human eye through the semi-transparent and semi-reflective lens. Since it is a secondary reflection, the image of the book or screen is formed directly in front of the human eye.

[0042] The reflecting mirror 3 is rotatably disposed in the box body 1 and is located behind the semi-transparent and semi-reflective lens 2. The reflecting mirror 3 can adjust its angle relative to the semi-transparent and semi-reflective lens 2 in a vertical plane. As Figure 8 shown, it is the normal viewing angle of the human eye. Figure 9 shown, it is the top view angle. At this time, the angle of the reflecting mirror 3 can be adjusted to adapt to this viewing angle. As Figure 10 shown, it is the upward viewing angle. At this time, the angle of the reflecting mirror 3 can be adjusted to adapt to this viewing angle, so that the direction of the reflected light can be adjusted according to the height and sitting posture of the user, and the problem of visual field deviation caused by individual differences can be solved.

[0043] In this embodiment, there are various ways to rotatably dispose the reflecting mirror 3. For example, the top, bottom or middle of the reflecting mirror 3 can be rotatably connected to the box body 1 through structures such as a rotating shaft. Specifically, when implemented, a rotating mechanism such as a bearing or a hinge can be disposed at the corresponding position of the box body 1 to achieve flexible adjustment of the reflecting mirror 3.

[0044] To facilitate the user to adjust the angle of the reflecting mirror 3, a rotating handle 4 is designed in this embodiment. The rotating handle 4 is connected to the reflecting mirror 3 and is located outside the box body 1. The user can easily drive the reflecting mirror 3 to adjust the angle by rotating the rotating handle 4, so as to achieve the best visual field effect.

[0045] Regarding the specific type of the reflecting mirror 3, this embodiment provides various options. For example, Figure 5 shown, the reflecting mirror 3 includes a plane mirror 32 and is located behind the semi-transparent and semi-reflective lens 2, and the mirror surface of the plane mirror 32 faces the semi-transparent and semi-reflective lens 2. Figure 4 shown, the reflecting mirror 3 includes a concave mirror 31 and is located behind the semi-transparent and semi-reflective lens 2, and the concave surface of the concave mirror 31 faces the semi-transparent and semi-reflective lens 2. The plane mirror 32 can provide a real image, while the concave mirror 31 can provide a magnified image.

[0046] In addition, during actual use, when a plane mirror is adopted, its imaging will not produce distortion, but the distance for the image to be pulled away is limited. While when a concave mirror is used, the distance for the image to be pulled away can be made larger, and it can be magnified after being pulled away, but distortion will occur. Some users are prone to feel dizzy when viewing the distorted image. Therefore, Figure 1 - Figure 3 As shown, the concave mirror 31 and the plane mirror 32 are arranged opposite to each other, and the user can flip the reflector 3 according to actual needs, so as to choose to use the concave mirror 31 or the plane mirror 32.

[0047] Figure 3 As shown, in the combination scheme where the reflector 3 includes the concave mirror 31 and the plane mirror 32, in order to further improve the structural stability and the convenience of adjustment, a frame 5 is provided. The concave mirror 31 and the plane mirror 32 are arranged opposite to each other in the frame 5, and the middle part of the frame 5 is rotatably arranged in the box body 1. In this way, the user can achieve flipping by adjusting the frame 5.

[0048] In addition, considering that during the process of adjusting the angle of the reflector 3, interference or collision with the semi-transparent and semi-reflective lens 2 may occur, in this embodiment, pull-out members 6 are arranged on the left and right inner walls of the box body 1. Figure 6 As shown, the reflector 3 is rotatably arranged on the pull-out members 6 and can move backward along the pull-out members 6 to avoid the semi-transparent and semi-reflective lens 2 during the flipping process. Such a design not only ensures the flexibility of adjustment but also avoids mutual interference between components. The pull-out members can be selected to use structures such as drawer rails.

[0049] It should be noted that the semi-transparent and semi-reflective lens 2 can be square with a side length of 20 cm to 60 cm, or rectangular with the long side of the rectangle being 20 cm to 60 cm, or circular with a diameter of 20 cm to 60 cm, or elliptical with the major axis of the ellipse being 20 cm to 60 cm. The semi-transparent and semi-reflective lens 2 can also be a polygon or other shape within the range of a 60 cm * 60 cm area.

[0050] At the same time, the side of the semi-transparent and semi-reflective lens 2 coated with the semi-transparent and semi-reflective film is set downward and obliquely backward at 45 ± 15°.

[0051] The focal length range of the concave mirror 31 is 50 cm to 300 cm, and the corresponding radius of curvature is 100 cm to 600 cm. The concave mirror 31 and the plane mirror 32 can be square with a side length of 10 cm to 60 cm, or rectangular with the long side of the rectangle being 10 cm to 60 cm, or circular with a diameter of 10 cm to 60 cm, or elliptical with the major axis of the ellipse being 10 cm to 60 cm. The concave mirror 31 and the plane mirror 32 can also be a polygon or other shape within the range of a 60 cm * 60 cm area.

[0052] At the bottom of the box body 1, that is, the position where the book is placed, the distance from the center thereof to the center of the semi-transmissive semi-reflective lens 2 is 20 cm to 60 cm. The distance from the center of the semi-transmissive semi-reflective lens 2 to the center of the concave mirror 31 is 10 cm to 100 cm.

[0053] The illumination light source 7 is arranged below the semi-transmissive semi-reflective lens 3 and is distributed in a square shape at the lower part of the box body 2. It is an LED lamp. The illumination light source 7 irradiates downward, and the emitted bright light irradiates the book or the screen 8. The illumination intensity of the illumination light source 7 is 500 to 20000 Lux.

[0054] Through the description of the above specific embodiments, it can be seen that the adjustable long-distance imaging optical reading and writing device provided by the present utility model has the advantages of simple structure, convenient adjustment and good use effect, and can flexibly adjust the angle of the reflecting mirror according to the individual differences of users, so as to ensure that the user can obtain the best visual field effect when using.

[0055] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

Claims

1. Adjustable far-image optical reading and writing device, characterized in that: Comprising A box body, the bottom surface and the front side surface of the box body are both transparent; A semi-transparent and semi-reflective mirror, the semi-transparent and semi-reflective mirror is arranged in the box body, and the surface of the semi-transparent and semi-reflective mirror coated with the semi-transparent and semi-reflective film faces downward and is inclined backward; A reflecting mirror, the reflecting mirror is rotatably arranged in the box body and is located behind the semi-transparent and semi-reflective mirror, and the reflecting mirror is used to adjust the angle of the reflecting mirror relative to the semi-transparent and semi-reflective mirror in a vertical plane.

2. The adjustable far-image optical reading and writing device according to claim 1, wherein: The top of the reflecting mirror is rotatably arranged in the box body.

3. The adjustable telephoto optical reading and writing device according to claim 1, characterized in that: The bottom of the reflecting mirror is rotatably arranged in the box body.

4. The adjustable telephoto optical reading and writing device according to claim 1, characterized in that: The middle part of the reflecting mirror is rotatably arranged in the box body.

5. The adjustable far-image optical reading and writing device according to any one of claims 1-4, characterized in that: The reflecting mirror is rotatably arranged in the box body through a rotating shaft, the reflecting mirror is connected with a rotating handle, the rotating handle is located outside the box body, and the rotation of the rotating handle is used to drive the reflecting mirror to adjust the angle.

6. The adjustable telephoto optical reading and writing device according to claim 5, characterized in that: The reflecting mirror includes a plane mirror, and the plane mirror is rotatably arranged in the box body.

7. The adjustable far-image optical reading and writing device according to claim 5, wherein: The reflecting mirror includes a concave mirror, and the concave mirror is rotatably arranged in the box body.

8. The adjustable telephoto optical reading and writing device according to claim 4, characterized in that: The reflecting mirror includes a concave mirror and a plane mirror, the concave mirror and the plane mirror are arranged opposite to each other, and the middle part of the reflecting mirror is rotatably arranged in the box body.

9. The adjustable telephoto optical reading and writing device according to claim 8, wherein: It further includes a frame, the concave mirror and the plane mirror are arranged opposite to each other in the frame, and the middle part of the frame is rotatably arranged in the box body.

10. The adjustable long-distance imaging optical reading and writing device according to claim 8 or 9, characterized in that: Pulling members are arranged on the left and right inner walls of the box body, the reflecting mirror is rotatably arranged on the pulling members, and the reflecting mirror is used to move backward along the pulling members to avoid the semi-transparent and semi-reflective mirror during the flipping process.

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