Adjustable film watching optical mechanism and vehicle-mounted film watching equipment

Abstract

The utility model discloses an adjustable film watching optical mechanism and a vehicle-mounted film watching device, and relates to the optical image display field, the optical mechanism comprises a display screen, a first reflector and a second reflector, the display screen is arranged between the first reflector and the second reflector, and the display screen, the first reflector and the second reflector are staggered in the vertical direction; a picture image in the display screen enters the second reflecting mirror after being reflected by the first reflecting mirror, the second reflecting mirror reflects the picture image to human eyes, the first reflecting mirror and the second reflecting mirror are both installed on the adjusting mechanism, the adjusting mechanism comprises an outer frame, knobs are arranged on the two sides of the outer frame, and the knobs drive the outer frame to rotate; according to the utility model, the impression distance and impression effect are improved, the knob on the adjusting mechanism drives the outer frame to rotate, drives the first reflector or the second reflector to rotate, and reflects images to different positions, so that people can watch films at different positions, the fatigue feeling caused by long-time film watching is relieved, and the device is suitable for vehicle-mounted equipment.

Description

Technical Field

[0001] This utility model relates to the field of optical image display technology, and in particular to an adjustable viewing optical mechanism and a vehicle-mounted viewing device. Background Technology

[0002] New energy vehicles and intelligent driving are gaining increasing popularity because cars are no longer simple means of transportation, but rather intelligent devices integrating various functions. During journeys, passengers in the back seat often watch videos to alleviate boredom. However, watching videos on a regular mobile phone offers poor viewing quality. With the rapid development of technology, many people are choosing VR glasses to watch videos. Patent application number CN201711402617.6 discloses a viewing device including a frame with an area for placing a screen and an area for viewing. An optical component is located inside the frame, positioned between the screen placement area and the viewing area. The optical component includes a reflector module. The reflector module includes at least one first reflective lens and one second reflective lens. The first reflective lens is either a semi-reflective or total reflective lens. The reflector module is positioned in front of the screen. The reflector module provides the received image, after one or more reflections, to the human eye. The second reflective lens is either a semi-reflective or total reflective lens. The first reflective lens reflects the received image to the second reflective lens, which then reflects the image to the human eye. This technical solution uses a reflector module to perform multiple total or partial reflections on the image content, thereby preventing light from directly entering the human eye and reducing glare.

[0003] However, the reflective lenses in existing movie-watching equipment are fixed, which means that the viewing point is fixed. People need to watch from the same fixed point for a long time, which can easily cause fatigue. Especially when used in a car, the position of the eyes will change for people of different heights and for rear passengers with different sitting postures, which makes the existing movie-watching equipment unsuitable. Therefore, this utility model discloses an adjustable movie-watching optical mechanism and a car-mounted movie-watching device to solve the above problems. Utility Model Content

[0004] Based on this, it is necessary to address the aforementioned technical problems by providing an adjustable viewing optical mechanism and in-vehicle viewing device. This mechanism uses a first and a second reflector to refract the image from the display screen twice before it reaches the viewer's eye, allowing them to see a magnified virtual image from a distance. This improves the viewing distance and viewing effect. Furthermore, by adjusting a knob on the mechanism, the outer frame rotates, which in turn rotates the first or second reflector, reflecting the image to different positions. This allows viewers to watch movies from various locations, alleviating fatigue caused by prolonged viewing. This design is suitable for use in in-vehicle devices.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An adjustable viewing optical mechanism includes a display screen, a first reflector, and a second reflector. The display screen is positioned between the first and second reflectors, and the display screen, the first reflector, and the second reflector are vertically offset. The image on the display screen is reflected by the first reflector and then enters the second reflector, which reflects the image to the viewer's eye. Both the first and second reflectors are mounted on an adjustment mechanism. The adjustment mechanism includes an outer frame, and knobs are provided on both sides of the outer frame. The knobs drive the outer frame to rotate.

[0007] In a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, the display screen is located above the first reflector, and the second reflector is located below the first reflector.

[0008] In a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, a shaft is fixedly connected to the middle of at least one side of the outer frame, and the shaft is fixedly connected to a knob.

[0009] As a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, it also includes a locking structure, which is sleeved on the outside of the shaft. After the knob drives the shaft to rotate, the locking structure fixes the shaft.

[0010] As a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, the locking structure includes a locking sleeve and a locking disc. The inner wall of the locking sleeve is provided with a locking groove arranged in a ring array. The locking disc is sleeved outside the shaft and is circumferentially limited relative to the shaft. The locking disc is disposed inside the locking sleeve and is provided with at least one elastic protrusion. The elastic protrusion matches the locking groove.

[0011] As a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, the side wall of the shaft is provided with a limiting groove along the axial direction, the middle part of the locking disc is provided with a through groove, the inner wall of the through groove is provided with a limiting groove, and after the locking disc is sleeved on the shaft, the limiting groove and the limiting groove coincide and the pin is inserted.

[0012] In a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, the end of the shaft is provided with a threaded section, a pressure plate is threadedly connected to the threaded section, the pressure plate abuts against the locking disc, and the threaded section is threadedly connected to the knob.

[0013] In a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, the knob is provided with an annular groove, the locking sleeve extends into the annular groove, and the knob seals the opening of the locking sleeve.

[0014] A vehicle-mounted movie viewing device includes the aforementioned adjustable viewing optical mechanism and a housing. The adjustable viewing optical mechanism is installed inside the housing, and the housing is fixedly installed on the front seat of a car. The knob drives the outer frame to rotate relative to the housing.

[0015] As a preferred embodiment of the adjustable viewing optical mechanism provided by this utility model, a U-shaped mounting bracket is fixedly connected to the bottom of the housing. The U-shaped mounting bracket is fixed to the back of the headrest of the front seat of the car. An eye-viewing lens is provided on one side of the housing. The human eye views the virtual image of the display screen through the eye-viewing lens. A switch button is installed on the housing below the eye-viewing lens.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The adjustable viewing optical mechanism provided by this utility model refracts the image on the display screen twice through the first and second reflectors before it enters the human eye, allowing the human eye to see a magnified virtual image from a distance, thus improving the viewing distance and viewing effect. By adjusting the knob on the mechanism, the outer frame is rotated, which in turn rotates the first or second reflector, reflecting the image to different positions. People can watch the movie from different positions, relieving fatigue caused by watching movies for a long time. It is suitable for use in vehicle-mounted equipment.

[0018] 2. The in-vehicle movie viewing device provided by this utility model has its shell with an adjustable movie viewing optical mechanism fixed on the front seat of the car. It does not require wearing or holding, reducing the impact of dizziness and vertigo on the back seat passengers and will not cause discomfort to the back seat passengers. It can be viewed from different positions, providing a comfortable and long-lasting movie viewing environment for the back seat passengers and improving the riding experience of the back seat passengers. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic plan view of the overall structure of the adjustable viewing optical mechanism provided by this utility model;

[0021] Figure 2A three-dimensional schematic diagram of the overall structure of the adjustable viewing optical mechanism provided by this utility model;

[0022] Figure 3 A cross-sectional schematic diagram of the adjustment mechanism of the adjustable viewing optical mechanism provided by this utility model;

[0023] Figure 4 An exploded three-dimensional schematic diagram of the adjustment mechanism of the adjustable viewing optical mechanism provided by this utility model;

[0024] Figure 5 A schematic diagram of the overall structure of the in-vehicle movie viewing device provided by this utility model.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Display screen; 2. First reflector; 3. Second reflector; 4. Adjustment mechanism; 5. Outer frame; 6. Shaft; 7. Knob; 8. Locking sleeve; 9. Locking disc; 10. Locking groove; 11. Elastic protrusion; 12. Limiting groove; 13. Through groove; 14. Limiting recess; 15. Pin; 16. Threaded section; 17. Pressure plate; 18. Annular groove; 19. Housing; 20. U-shaped mounting bracket; 21. Eyepiece lens; 22. Switch button. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] As mentioned in the background section, passengers in the back seat of a car often watch videos to alleviate boredom during the journey. However, the video viewing effect on a regular mobile phone is poor. With the rapid development of technology, many people choose VR glasses to watch videos. The reflective lenses in existing viewing devices are fixed, which means that the viewing point is fixed. People need to watch from the same fixed point for a long time, which can easily cause fatigue, especially when used in a car. For people of different heights and in different sitting positions of back passengers, the position of the eyes will change, which makes existing viewing devices difficult to use.

[0029] To solve this technical problem, this utility model provides an adjustable viewing optical mechanism, which is applied in the field of optical image display.

[0030] For details, please refer to Figure 1-4The adjustable viewing optical mechanism specifically includes a display screen 1, a first reflector 2, and a second reflector 3. The display screen 1 is located between the first reflector 2 and the second reflector 3, and the display screen 1, the first reflector 2, and the second reflector 3 are staggered in the vertical direction. The image on the display screen 1 is reflected by the first reflector 2 and then enters the second reflector 3. The second reflector 3 reflects the image to the human eye. The first reflector 2 and the second reflector 3 are both mounted on an adjustment mechanism 4. The adjustment mechanism 4 includes an outer frame 5, and knobs 7 are provided on both sides of the outer frame 5. The knobs 7 drive the outer frame 5 to rotate.

[0031] The adjustable viewing optical mechanism provided by this utility model refracts the image of the display screen 1 twice through the first reflector 2 and the second reflector 3 before it enters the human eye, so that the human eye sees a magnified virtual image at a distance, which improves the viewing distance and viewing effect. The knob 7 on the adjustment mechanism 4 drives the outer frame 5 to rotate, thereby driving the first reflector 2 or the second reflector 3 to rotate, reflecting the image to different positions. People can watch the movie from different positions, which can alleviate the fatigue caused by watching the movie for a long time. It is suitable for use in vehicle equipment.

[0032] In order to solve the problems existing in the current technology, this utility model provides a car-mounted movie viewing device, which is applied to the field of car entertainment cinema.

[0033] For details, please refer to Figure 5 A vehicle-mounted movie viewing device includes the aforementioned adjustable viewing optical mechanism and a housing 19. The adjustable viewing optical mechanism is installed inside the housing 19, and the housing 19 is fixedly installed on the front seat of a car. The knob 7 drives the outer frame 5 to rotate relative to the housing 19.

[0034] The in-vehicle movie viewing device provided by this utility model fixes the shell 19 with the adjustable movie viewing optical mechanism on the front seat of the car without the need to wear or hold it, reducing the impact of dizziness and vertigo on the rear seat passengers and preventing discomfort to them. It allows for movie viewing from different positions, providing a comfortable and long-lasting movie viewing environment for the rear seat passengers and improving their travel experience.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0038] Please refer to Figure 1-2 An adjustable viewing optical mechanism is provided, comprising a display screen 1, a first reflector 2, and a second reflector 3. The display screen 1 is positioned between the first reflector 2 and the second reflector 3, and the display screen 1, the first reflector 2, and the second reflector 3 are vertically offset. Specifically, the display screen 1 is located above the first reflector 2, and the second reflector 3 is located below the first reflector 2. The display screen 1 is tilted, with its light-emitting surface facing the first reflector 2. The first reflector 2 and the second reflector 3 are also tilted. The image on the display screen 1 is reflected by the first reflector 2 and then enters the second reflector 3. The second reflector 3 is lower than the first reflector 2. The second reflector 3 reflects the image to the human eye. The first reflector 2 and the second reflector 3 are both mounted on the adjustment mechanism 4. The adjustment mechanism 4 includes an outer frame 5. Both sides of the outer frame 5 are provided with knobs 7. The knobs 7 drive the outer frame 5 to rotate. Specifically, at least one side of the outer frame 5 is fixedly connected to the middle of a shaft 6. The shaft 6 is fixedly connected to the knob 7. In this example, shafts 6 are provided on both symmetrical sides of the outer frame 5. The use of knobs 7 on both sides ensures the stability of the rotation of the outer frame 5 and ensures the stability of the outer frame 5 after rotation adjustment.

[0039] The adjustable viewing optical mechanism provided in Example 1 is further optimized, specifically, as follows: Figure 1-4 As shown, a locking structure is also provided on the outside of the shaft 6. After the knob 7 drives the shaft 6 to rotate, the locking structure fixes the shaft 6, thereby fixing the outer shell 19 by means of the locking structure, so that the adjusted first reflector 2 and second reflector 3 maintain a relative tilt angle.

[0040] The locking structure includes a locking sleeve 8 and a locking disc 9. The locking sleeve 8 is fixed on the structure on which the adjustable viewing optical mechanism is installed. The inner wall of the locking sleeve 8 is provided with a locking groove 10 arranged in a ring array. The locking disc 9 is sleeved on the outside of the shaft 6 and is circumferentially limited relative to the shaft 6. The locking disc 9 is located inside the locking sleeve 8 and is provided with at least one elastic protrusion 11. In this example, three elastic protrusions 11 are provided and distributed in a ring array. The elastic protrusions 11 match the locking grooves 10. When the knob 7 drives the shaft 6 to rotate, the shaft 6 drives the locking disc 9 to rotate. The elastic protrusions 11 on the locking disc 9 are engaged in the locking grooves 10, thereby fixing the shaft 6 and preventing the shaft 6 from rotating on its own.

[0041] The side wall of the shaft 6 is provided with a limiting groove 12 along the axial direction. The middle part of the locking disc 9 is provided with a through groove 13. The inner wall of the through groove 13 is provided with a limiting groove 14. After the locking disc 9 is sleeved on the shaft 6, the limiting groove 12 and the limiting groove 14 coincide and the pin 15 is inserted. The pin 15 is used to limit the locking disc 9 and the shaft 6 circumferentially. When the shaft 6 rotates, the locking disc 9 follows the shaft 6 to rotate due to the action of the pin 15.

[0042] The end of the shaft 6 is provided with a threaded section 16, and a pressure plate 17 is threadedly connected to the threaded section 16. The pressure plate 17 abuts against the locking disc 9. The threaded section 16 is threadedly connected to the knob 7. The pressure plate 17 is used to press and fix the locking disc 9, which can prevent the locking disc 9 from sliding along the shaft 6 axially. The threaded section 16 is also convenient for fixing the shaft 6 and the knob 7 together. Of course, the knob 7 can also be fixed together by interference fit.

[0043] The knob 7 has an annular groove 18, and the locking sleeve 8 extends into the annular groove 18. The knob 7 seals the opening of the locking sleeve 8, improving the aesthetics.

[0044] Please refer to Figure 5 A vehicle-mounted movie viewing device is provided, comprising the aforementioned adjustable viewing optical mechanism and a housing 19. The adjustable viewing optical mechanism is installed inside the housing 19, which is fixedly mounted on the front seat of the car. A knob 7 drives the outer frame 5 to rotate relative to the housing 19. A locking sleeve 8 is fixed to the housing 19 with screws. A U-shaped mounting bracket 20 is fixedly connected to the bottom of the housing 19 and is fixed to the back of the headrest of the front seat. An eye-viewing lens 21 is provided on one side of the housing 19. The eye-viewing lens 21 is installed on the human eye side of the adjustable viewing optical mechanism, through which the human eye views the virtual image of the display screen 1. A switch button 22 is installed below the eye-viewing lens 21 on the housing 19. The switch button 22 controls the opening and closing of the display screen 1. Rear passengers can directly press the switch button 22 to turn on the display screen 1 and watch the movie.

[0045] The working principle of the adjustable viewing optical mechanism and in-vehicle viewing equipment provided by this utility model is as follows: The U-shaped mounting bracket 20 on the outer shell 19 is fixed to the back of the headrest of the front seat, with the eyepiece 21 facing the rear seat. Pressing the switch button 22 turns on the display screen 1. The image on the display screen 1 is refracted twice by the first reflector 2 and the second reflector 3 before entering the human eye, allowing the human eye to see a magnified virtual image at a distance, improving the viewing distance and viewing effect. The knob 7 on the adjustment mechanism 4 drives the outer frame 5 to rotate, thereby driving the first reflector 2 or the second reflector 3 to rotate, reflecting the image to different positions. People can watch the movie from different positions, relieving the fatigue caused by watching the movie for a long time. It is suitable for use in in-vehicle equipment. The outer shell 19 with the adjustable viewing optical mechanism is fixed on the front seat of the car. It does not need to be worn or held, reducing the impact of dizziness and vertigo on the rear seat personnel. It will not cause discomfort to the rear seat personnel. It can be watched from different positions, providing a comfortable and long-lasting viewing environment for the rear seat personnel, improving the riding experience of the rear seat personnel.

[0046] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An adjustable viewing optical mechanism, comprising a display screen, a first reflector, and a second reflector, characterized in that, The display screen is positioned between the first reflector and the second reflector, and the display screen, the first reflector, and the second reflector are vertically offset. The image on the display screen is reflected by the first reflector and enters the second reflector, which then reflects the image to the human eye. Both the first and second reflectors are mounted on an adjustment mechanism. The adjustment mechanism includes an outer frame, and knobs are provided on both sides of the outer frame. The knobs drive the outer frame to rotate.

2. The adjustable viewing optical mechanism according to claim 1, characterized in that, The display screen is located above the first reflector, and the second reflector is located below the first reflector.

3. The adjustable viewing optical mechanism according to claim 1, characterized in that, A shaft is fixedly connected to the middle of at least one side of the outer frame, and the shaft is fixedly connected to the knob.

4. The adjustable viewing optical mechanism according to claim 3, characterized in that, It also includes a locking structure, which is sleeved on the outside of the shaft. After the knob drives the shaft to rotate, the locking structure fixes the shaft.

5. An adjustable viewing optical mechanism according to claim 4, characterized in that, The locking structure includes a locking sleeve and a locking disc. The inner wall of the locking sleeve is provided with a ring-shaped array of locking grooves. The locking disc is sleeved outside the shaft and is circumferentially limited relative to the shaft. The locking disc is located inside the locking sleeve and has at least one elastic protrusion on it. The elastic protrusion matches the locking groove.

6. The adjustable viewing optical mechanism according to claim 5, characterized in that, The shaft sidewall is provided with a limiting groove along the axial direction, the locking disc is provided with a through groove in the middle, and the inner wall of the through groove is provided with a limiting groove. After the locking disc is sleeved on the shaft, the limiting groove and the limiting groove coincide and the pin is inserted.

7. An adjustable viewing optical mechanism according to claim 6, characterized in that, The end of the shaft is provided with a threaded section, and a pressure plate is threadedly connected to the threaded section. The pressure plate abuts against the locking disc, and the threaded section is threadedly connected to the knob.

8. An adjustable viewing optical mechanism according to claim 7, characterized in that, The knob has an annular groove, the locking sleeve extends into the annular groove, and the knob seals the opening of the locking sleeve.

9. A vehicle-mounted movie viewing device, characterized in that, The device includes the adjustable viewing optical mechanism and housing as described in any one of claims 1-8, wherein the adjustable viewing optical mechanism is installed inside the housing, the housing is fixedly installed on the front seat of a car, and the knob drives the outer frame to rotate relative to the housing.

10. A vehicle-mounted movie viewing device according to claim 9, characterized in that, A U-shaped mounting bracket is fixedly connected to the bottom of the housing. The U-shaped mounting bracket is fixed to the back of the headrest of the front seat of the car. An eye-viewing lens is provided on one side of the housing. The human eye views the virtual image of the display screen through the eye-viewing lens. A switch button is installed on the housing below the eye-viewing lens.

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