Far image screen device

Abstract

The utility model provides a far image screen device. The far image screen device comprises a shell, a concave reflecting mirror and a spectroscope, wherein the concave reflecting mirror and the spectroscope are arranged in the shell. Wherein the front part of the shell is provided with an observation window, a concave reflecting mirror is arranged in the shell along the depth direction of the observation window, the concave surface of the concave reflecting mirror faces the observation window, and a spectroscope is arranged between the concave reflecting mirror and the observation window; the concave reflecting mirror is arranged in the shell, the concave reflecting mirror is arranged in the concave reflecting mirror, the projection windows are respectively arranged at the top and the bottom of the shell, the projection windows are used for placing reading materials, the spectroscope, the projection windows and the concave reflecting mirror form a certain angle, the angle of the spectroscope is adjustable, two functions of a far image screen and a read-write table can be realized on one device, and the use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of imaging optical equipment, especially a far image screen device. BACKGROUND

[0002] In recent years, the trend of low age of myopia group is increasingly obvious, especially in students. The main cause of student myopia is often long time close eye, children's learning and entertainment in modern society usually need long time to watch screen, and also need to write, read and other activities, leading to eye fatigue, which is easy to cause myopia.

[0003] In order to solve this problem, the prior art adopts far image screen, enlarges and displays the content of electronic screen, thereby changing close eye into long distance eye, so as to prevent myopia.

[0004] Most of the far image screen products on the market need to be matched with a high-speed scanner to realize the zoom effect when reading and writing non-electronic reading materials such as books, but the high-speed scanner has a delay problem, which leads to poor writing experience of students, and the combination of reading and writing table and far image screen occupies a large desktop space, which is very inconvenient to use. UTILITY MODEL CONTENT

[0005] The utility model aims at the defects in the above-mentioned technology, provides a kind of far image screen device, two kinds of functions of far image screen and reading and writing table can be realized on one device, it is convenient to use, avoid the problem of close eye in the process of learning and entertainment of user.

[0006] The utility model is realized as follows: including shell, and concave mirror and beam splitter arranged in the shell;Wherein,

[0007] The shell front is equipped with observation window, and the concave mirror is arranged in the shell along the longitudinal direction of the observation window, wherein the concave surface of the concave mirror faces the observation window, and the beam splitter is arranged between the concave mirror and the observation window;

[0008] It further includes a projection window, the shell top and bottom are respectively equipped with projection window, the projection window is used to place reading material, the beam splitter is at a certain angle with the projection window and the concave mirror, and the angle of the beam splitter is adjustable.

[0009] In the above structure, the projection window includes an electronic window arranged on the top of the shell and a non-electronic reading material window arranged on the bottom of the shell, the electronic window is equipped with an electronic screen, and the non-electronic reading material window is surrounded by a full-spectrum lamp, which provides light for the non-electronic reading material through the full-spectrum lamp.

[0010] The spectroscope is further provided with an adjusting device, which is used to adjust the inclination angle of the spectroscope to make the spectroscope be at a first inclination angle or a second inclination angle.

[0011] The first inclination angle makes the spectroscope be adapted to the electronic screen on the top of the shell, and the second inclination angle makes the spectroscope be adapted to the non-electronic reading window.

[0012] The adjusting device comprises a first sliding part rotatably connected to the middle part of the spectroscope and a second sliding part rotatably connected to the bottom part of the spectroscope, the first sliding part slides along the vertical direction, and the second sliding part slides along the horizontal direction.

[0013] The adjusting device further comprises a driving mechanism fixedly connected to the second sliding part and used to drive the second sliding part to slide along the horizontal direction.

[0014] The driving mechanism comprises a first transmission device and a second transmission device, the first transmission device and the second transmission device are respectively arranged on the two sides of the spectroscope and are used to synchronously drive the second sliding parts on the two sides of the bottom part of the spectroscope to slide along the horizontal direction.

[0015] The first transmission device comprises a driving motor, a first idler and a second idler arranged along the horizontal direction, and the driving motor is connected to the first idler and the second idler through a first belt.

[0016] The adjusting device further comprises a tension pulley abutting against the first belt to make the first belt be in a horizontal state along the direction from the first idler to the second idler, and the second sliding part is fixedly connected to the first belt.

[0017] The second transmission device comprises a third idler and a fourth idler connected through a second belt, the third idler is coaxially arranged with the first idler and is connected to the first idler through a transmission shaft.

[0018] The second sliding part is fixedly connected to the second belt.

[0019] The adjusting device further comprises a red light lamp arranged around the observation window.

[0020] The adjusting device further comprises a first light shield and a second light shield rotatably arranged on the two sides of the non-electronic reading window.

[0021] The adjusting device further comprises a mounting bracket, the mounting bracket comprises a clamping part and a connecting arm, and the connecting arm is connected to the shell.

[0022] The connecting arm comprises a stand connected with the clamping part, a first arm connected with the stand in a horizontal direction, a second arm connected with the first arm in a horizontal direction, and a third arm connected with the second arm in a vertical direction.

[0023] The device has the advantages that: the two functions of the far image screen and the reading and writing table are realized by adjusting the angle of the beam splitter, the problem of overuse of eyes in close range during learning and entertainment is avoided, and the occurrence and development of myopia of children and teenagers can be effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a three-dimensional structure schematic diagram of the far image screen device of the utility model;

[0025] Figure 2 is a far image screen device internal structure schematic diagram when the beam splitter of the utility model is at the second inclination angle Figure 1 .

[0026] Figure 3 is a far image screen device internal structure schematic diagram when the beam splitter of the utility model is at the second inclination angle Figure 2 .

[0027] Figure 4 is a far image screen device internal structure schematic diagram when the beam splitter of the utility model is at the first inclination angle Figure 1 .

[0028] Figure 2 is a far image screen device internal structure schematic diagram when the beam splitter of the utility model is at the first inclination angle Figure 1 . DETAILED DESCRIPTION

[0029] The application provides a far image screen device, wherein a beam splitter can be located at a first inclination angle or a second inclination angle through an adjusting device to realize two functions of a far image screen and a reading and writing table, avoid overuse of eyes in close range during learning and entertainment of a user, effectively prevent the occurrence and development of myopia of children and teenagers, and have simple structure and easy operation.

[0030] The embodiment will be further described below in combination with the drawings:

[0031] By Figure 5 — Figures 2-5It can be known that the application comprises a shell 1, a concave mirror 2 and a light splitter 3 arranged in the shell 1. The shell 1 is provided with an observation window 110 at the front, the concave mirror 2 is arranged in the shell 1 along the longitudinal direction of the observation window 110, the concave surface of the concave mirror 2 faces the observation window 110, and the light splitter 3 is arranged between the concave mirror 2 and the observation window 110. The light splitter in the embodiment is a coated glass that can partially reflect and partially project light. The shell 1 is also provided with a projection window at the top and the bottom, the projection window is used to place reading materials, the light splitter 3 is at an angle with the projection window and the concave mirror 2, and the angle of the light splitter 3 is adjustable.

[0032] It is to be noted that the shell is also provided with a frame structure 120 arranged in the shell 1. The components such as the concave mirror 2 and the light splitter 3 can be directly connected to the shell 1 or connected to the frame structure 120. Figure 2 The internal structure of the far image screen device after removing part or all of the shell 1 is shown. In the embodiment, the concave mirror 2 and the light splitter 3 are connected to the frame structure, which is only exemplary and does not limit the protection scope of the application.

[0033] In addition, the angle of the light splitter 3 is adjustable. In the embodiment, the angle adjustment mode of the light splitter 3 can be automatic or manual. The adjustment of the inclination angle of the light splitter 3 is mainly for the case that the projection window is arranged at the top and the bottom of the shell 1. By adjusting the angle of the light splitter 3, the content of the reading materials in the top or bottom projection window can be reflected to the concave mirror 2, the light reflected by the concave mirror 2 is incident on the light splitter 3, and then transmitted out of the light splitter 3, so that an image with a preset image distance is presented in the observation window 110.

[0034] The working principle is mainly to convert the image at a close distance into an image at a far distance by optical technology, and to simulate the effect of looking far away. This technology is based on multiple refraction of light and special technical means, and can pull the observation object from a close distance to a distance of five meters or even farther, so as to effectively avoid temporary myopia caused by long-term close distance use of eyes.

[0035] On the basis of the above-mentioned embodiments, preferably, the screen projection window comprises an electronic window arranged at the top of the shell and a non-electronic reading window 130 arranged at the bottom of the shell, the electronic window is provided with an electronic screen 4, and the non-electronic reading window 130 is provided with a full-spectrum lamp 5 around the periphery, and the full-spectrum lamp 5 is used to provide light for the non-electronic reading. In the embodiment, the non-electronic reading window 130 is mainly used for paper reading materials such as books, and the books are placed in correspondence with the non-electronic reading window 130, and the full-spectrum lamp 5 is used to provide light for the books, so that the light is partially reflected to the concave mirror 2 through the beam splitter 3, the light is reflected by the concave mirror 2 and transmitted through the beam splitter 3, and the light is imaged in the eyes of the user, and the imaging distance is far away through the reflection of the light. When the screen 4 is used, the electronic screen 4 itself emits light, and there is no need to provide light. The imaging principle is the same as that of the non-electronic reading window 130.

[0036] On the basis of the above-mentioned embodiments, preferably, the beam splitter 3 is further provided with an adjusting device, the adjusting device is used to adjust the inclination angle of the beam splitter 3, so that the beam splitter 3 is located at a first inclination angle or a second inclination angle. The first inclination angle is adapted to the electronic screen 4 at the top of the shell 1, and the second inclination angle is adapted to the position of the non-electronic reading window 130.

[0037] Further, the adjusting device comprises a first sliding part 610 rotatably connected to the middle part of the beam splitter 3 on both sides and a second sliding part 620 rotatably connected to the bottom part of the beam splitter 3 on both sides, the first sliding part 610 slides in the vertical direction, and the second sliding part 620 slides in the horizontal direction. In the embodiment, a first sliding rail 611 is arranged in correspondence with the first sliding part 610, wherein the first sliding part 610 is connected to the middle part of the beam splitter 3 through a rotating shaft, and the first sliding part 610 is in sliding cooperation with the first sliding rail 611. A second sliding rail 621 is arranged in correspondence with the second sliding part 620 and arranged on the shell 1 or the frame structure 120, wherein the second sliding part 620 is rotatably connected to the side surface of the bottom part of the beam splitter 3 through a rotating shaft, and when the second sliding part 620 slides along the second sliding rail 621, the first sliding part 610 moves up and down along the first sliding rail 611 synchronously, so that the beam splitter 3 has different angles.

[0038] The adjusting device further comprises a driving mechanism, the driving mechanism is fixedly connected with the second sliding part 620 and drives the second sliding part 620 to slide in the horizontal direction. When the second sliding part 620 moves along the second sliding rail 621 under the driving of the driving mechanism, the first sliding part 610 moves up and down along the first sliding rail 611 synchronously, so that the beam splitter 3 has different angles.

[0039] On the basis of the above embodiment, preferably, the driving mechanism comprises a first transmission device and a second transmission device, the first transmission device and the second transmission device are respectively arranged on both sides of the beam splitter 3 and synchronously drive the second sliding part 620 on both sides of the bottom of the beam splitter 3 to slide in the horizontal direction.

[0040] The specific structure of the first transmission device is referred to Figure 5 and Figure 3 , the first transmission device comprises a driving motor 710, and a first idler wheel 720 and a second idler wheel 730 arranged in the horizontal direction, the driving motor 710 is connected with the first idler wheel 720 and the second idler wheel 730 through a first belt 740a. In order to ensure the transmission effect of the first belt 740a, a tensioner 750 is also provided, the tensioner 750 abuts against the first belt 740a, so that the first belt 740a is in a horizontal state along the direction from the first idler wheel 720 to the second idler wheel 730, and the second sliding part 620 is fixedly connected with the first belt 740a.

[0041] Further, the second transmission device is referred to Figure 4 、 Figure 2 , comprising a third idler wheel 760 and a fourth idler wheel 770 connected through a second belt 740b arranged on the other side of the beam splitter, the third idler wheel 760 is coaxially arranged with the first idler wheel 720 and connected through a transmission shaft 780, and the second sliding part is fixedly connected with the second belt 740b.

[0042] When the driving motor 710 drives the first belt 740a of the first transmission device to run, the first idler wheel 720 rotates and drives the transmission shaft 780 to rotate, thereby driving the third idler wheel 760 to rotate, thereby realizing synchronous movement of the first transmission device and the second transmission device.

[0043] On the basis of the above embodiment, preferably, the observation window 110 is provided with a red light lamp 8 around, and the red light lamp 8 is arranged in a circle along the observation window 110 in the embodiment. The red light emitted by the red light lamp 8 can relieve eye fatigue and stimulate retinal cell activity.

[0044] On the basis of the above embodiment, preferably, the non-electronic reading window 130 is provided with a first light shield 131 and a second light shield 132 rotatably arranged on both sides. The first light shield 131 and the second light shield 132 are respectively provided with a turnover part 133 and a motor 134. When the non-electronic reading window 130 is used, the state of the first light shield 131 and the second light shield 132 is referred to Figure 3 、 Figure 4The first light shield 131 is in a horizontal state, which can prevent the user from seeing the physical non-electronic reading material by the residual light of the eyes, and affect the use effect, and the second light shield 132 prevents the interference of external light on one hand, and ensures the light supplement effect of the full-spectrum lamp on the non-electronic reading material on the other hand. ​ The first light shield 131 and the second light shield 132 are in a closed state.

[0045] On the basis of the above-mentioned embodiment, preferably, the mounting bracket is further included, the mounting bracket comprises a clamping part 910 and a connecting arm 920, and the connecting arm 920 is connected with the shell 1. The connecting arm 920 comprises a stand column 921 connected with the clamping part 910, a one-section arm 922 connected with the stand column 921 in a horizontal direction, a two-section arm 923 connected with the one-section arm 922 in a horizontal direction, and a three-section arm 924 connected with the two-section arm 923 in a vertical direction. The far-field screen device can be fixed on a desktop or the like through the clamping part 910, and the position of the far-field screen device can be adjusted through the connecting arm 920, so that the desktop space is small and easy to operate.

[0046] In the description of the present application, it should be pointed out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

Claims

1. A remote image display device, characterized in that, It includes a housing, and a concave reflector and a beam splitter disposed within the housing; wherein, The front of the housing is provided with an observation window, and a concave reflector is provided inside the housing along the depth direction of the observation window, wherein the concave surface of the concave reflector faces the observation window, and a beam splitter is provided between the concave reflector and the observation window; It also includes a projection window, with projection windows provided at the top and bottom of the housing, the projection window being used to place reading materials, the beam splitter being at a certain angle to the projection window and the concave reflector, and the angle of the beam splitter being adjustable.

2. The far-viewing screen device according to claim 1, characterized in that, The projection window includes an electronic window located at the top of the housing and a non-electronic reading material window located at the bottom of the housing. The electronic window is equipped with an electronic screen, and the non-electronic reading material window is surrounded by full-spectrum lamps to provide supplemental lighting for the non-electronic reading material.

3. The far-viewing screen device according to claim 2, characterized in that, The beam splitter is also equipped with an adjustment device, which adjusts the tilt angle of the beam splitter so that the beam splitter is located at a first tilt angle or a second tilt angle. The first tilt angle aligns the beam splitter with the electronic screen on the top of the housing, and the second tilt angle aligns the beam splitter with the position of the non-electronic reading window.

4. The far-viewing screen device according to claim 3, characterized in that, The adjustment device includes a first sliding part rotatably connected to both sides of the middle part of the beam splitter, and a second sliding part rotatably connected to both sides of the bottom of the beam splitter. The first sliding part slides in the vertical direction, and the second sliding part slides in the horizontal direction. It also includes a drive mechanism, which is fixedly connected to the second sliding part and drives the second sliding part to slide in the horizontal direction.

5. The far-viewing screen device according to claim 4, characterized in that, The driving mechanism includes a first transmission device and a second transmission device. The first transmission device and the second transmission device are respectively disposed on both sides of the beam splitter, and synchronously drive the second sliding part on both sides of the bottom of the beam splitter to slide in the horizontal direction.

6. The far-viewing screen device according to claim 5, characterized in that, The first transmission device includes a drive motor, and a first idler wheel and a second idler wheel arranged in a horizontal direction. The drive motor is connected to both the first idler wheel and the second idler wheel via a first belt. It also includes a tensioner pulley, which abuts against the first belt, so that the first belt is horizontal along the direction from the first idler pulley to the second idler pulley, and the second sliding part is fixedly connected to the first belt.

7. The far-viewing screen device according to claim 6, characterized in that, The second transmission device includes a third idler pulley and a fourth idler pulley connected by a second belt. The third idler pulley is coaxially arranged with the first idler pulley and connected by a transmission shaft. The second sliding part is fixedly connected to the second belt.

8. The far-viewing screen device according to claim 1, characterized in that, The observation window is surrounded by red lights.

9. The far-viewing screen device according to claim 2, characterized in that, The non-electronic reading window is equipped with a first light-shielding plate and a second light-shielding plate on both sides.

10. The far-viewing screen device according to any one of claims 1-9, characterized in that, It also includes a mounting bracket, which includes a clamping part and a connecting arm, the connecting arm being connected to the housing; The connecting arm includes a column connected to the clamping part, a first arm rotatably connected to the column in the horizontal direction, a second arm rotatably connected to the first arm in the horizontal direction, and a third arm rotatably connected to the second arm in the vertical direction.

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