Single-screen 3D night vision device
By setting the same-direction left objective lens and right objective lens in a single-screen 3D night vision instrument, the fill light unit is located on the center line of the lens, displaying the left and right images side by side, combining the trapezoidal observation room and the linear movement mechanism, the existing 3D night vision instrument is solved. The high cost and difficult picture adaptation problems achieve efficient naked-eye 3D effects and high-resolution display.
Patent Information
- Application Number
- CN202420654881.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing 3D night vision devices usually use two screens, which leads to increased cost and poor installation accuracy, making it difficult to achieve perfect left and right picture adaptation, and prone to shadows and blurred pictures. At the same time, the picture clarity and size are limited, making it difficult to meet. User requirements.
Design a single-screen 3D night vision instrument, using the left and right objective lenses set in the same direction, the fill light unit is located on the center line of the lens, the display screen displays the left and right images in parallel, the observation room adopts a trapezoidal setting, and the lens distance is adjusted by a linear movement mechanism. , ensure naked eye 3D effect and high resolution.
It achieves better naked-eye 3D effect, avoids picture blur and shadow problems caused by assembly errors, provides a larger picture display area and high resolution, and reduces equipment cost and volume.
Smart Images
Figure CN222169891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of night vision devices, in particular to a single-screen 3D night vision device. Background Art
[0002] Traditional night vision devices generally use 2D technology, and the left and right eyes observe the same picture, which has a monotonous visual effect and is difficult to meet the needs of users. With the development of technology, 3D night vision devices have emerged, and the left and right eyes observe two pictures with parallax to achieve the naked eye 3D effect. However, existing 3D night vision devices generally use two screens, which on the one hand increases the cost, and on the other hand, it is difficult to make the left and right pictures fit perfectly due to the difference in installation accuracy, which is prone to shadows, blurred pictures, etc. In addition, existing 3D night vision devices all use small screens, which limits the picture clarity and size, making it difficult to meet the needs of users. Utility Model Content
[0003] In view of the above situation, it is necessary to propose a single-screen 3D night vision device with good observation effect.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A single-screen 3D night vision device, comprising:
[0006] An objective lens assembly, comprising a left objective lens, a right objective lens and a fill light unit arranged in the same direction, wherein the left objective lens and the right objective lens are arranged at an interpupillary distance, and the fill light unit is arranged on a center line of the left objective lens and the right objective lens;
[0007] A control mainboard, electrically connected to the left objective lens, the right objective lens, and the fill light unit;
[0008] A display screen is arranged behind the objective lens assembly and is electrically connected to the control mainboard, wherein the display screen is configured to display a left picture and a right picture in parallel, wherein the left picture is photographed by the left objective lens and the right picture is photographed by the right objective lens;
[0009] An eyepiece assembly, comprising a left eyepiece and a right eyepiece;
[0010] An observation chamber is arranged between the display screen and the eyepiece assembly, the observation chamber includes a left observation chamber and a right observation chamber that are symmetrically arranged, the left observation chamber and the right observation chamber are independently separated, the left eyepiece observes the left picture through the left observation chamber, and the right eyepiece observes the right picture through the right observation chamber, and the areas of the left observation chamber and the right observation chamber gradually decrease along the direction from the display screen to the eyepiece assembly.
[0011] Furthermore, the width of the left observation cavity and the width of the right observation cavity gradually decrease along the direction from the display screen to the eyepiece assembly, and a mounting chamber is formed between the left observation cavity and the right observation cavity.
[0012] Furthermore, the right side slope of the left observation cavity is greater than the left side slope, and the left side slope of the right observation cavity is greater than the right side slope.
[0013] Furthermore, a battery is arranged in the installation compartment, and the battery is electrically connected to the control mainboard.
[0014] Furthermore, it also includes a shell assembly, which includes an objective lens cover and a main compartment, the objective lens cover and the main compartment are detachably connected, the objective lens assembly is exposed from the objective lens cover, and an exposed charging and communication interface is provided at a position of the main compartment corresponding to the installation compartment.
[0015] Furthermore, a card slot is provided at a position of the main compartment corresponding to the installation compartment.
[0016] Furthermore, the left eyepiece and the right eyepiece each include a first lens and a second lens which are spaced apart from each other along a direction from the display screen to the eyepiece assembly.
[0017] Furthermore, the objective lens end face of the first lens is a slightly convex surface, and the eyepiece end face is a concave surface; the objective lens end face of the second lens is a convex surface, and the eyepiece end face is a slightly convex surface, the convexity of the objective lens end face of the second lens is greater than the convexity of the eyepiece end face of the second lens, and the convexity of the objective lens end face of the second lens is greater than the convexity of the objective lens end face of the first lens.
[0018] Furthermore, the second lens is connected to a linear movement mechanism.
[0019] Furthermore, the linear motion mechanism includes a connecting cylinder, an inner rotating cylinder and an outer rotating cylinder, the connecting cylinder is a stator, a linear guide groove is provided on the connecting cylinder, the inner rotating cylinder is sleeved outside the connecting cylinder, an arc guide groove is provided on the inner rotating cylinder, the outer rotating cylinder is sleeved outside the inner rotating cylinder and makes the inner rotating cylinder rotate with the rotation of the outer rotating cylinder, a slider is provided on the second lens, the slider passes through the linear guide groove and is adapted to the arc guide groove, and the slider moves linearly along the linear guide groove following the rotation of the inner rotating cylinder, so that the second lens is close to or away from the first lens.
[0020] The beneficial effect of the utility model is that the fill light unit is arranged on the center line of the left and right lenses, which can ensure that the fill light of the left and right lenses is basically consistent, and the night vision picture taken can better form the naked eye 3D effect. A display screen is used to display the left and right pictures in parallel, so that the problem of picture blur and shadow caused by the assembly error of the two screens will not occur, and the naked eye 3D effect is better. The observation room adopts a trapezoidal setting, that is, the area of the objective end is large and the area of the eyepiece end is small, so that a larger picture can be displayed at the objective end, thereby ensuring the resolution and observation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic cross-sectional structure diagram of a single-screen 3D night vision device according to an embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the appearance structure of a single-screen 3D night vision device according to an embodiment of the utility model;
[0023] Figure 3 It is a schematic diagram of the appearance structure of a single-screen 3D night vision device in another direction according to an embodiment of the utility model;
[0024] Figure 4 This is a schematic diagram of the structure of a single-screen 3D night vision device according to an embodiment of the utility model;
[0025] Figure 5 It is a structural schematic diagram of a linear moving mechanism of a single-screen 3D night vision device according to an embodiment of the utility model.
[0026] Figure 6 It is a structural schematic diagram of another direction of a single-screen 3D night vision device according to an embodiment of the utility model.
[0027] Description of labels:
[0028] 100, objective lens assembly; 110, left objective lens; 120, right objective lens; 130, fill light unit;
[0029] 200, control main board; 300, display screen; 310, left picture; 320, right picture;
[0030] 400, eyepiece assembly; 401, left eyepiece; 402, right eyepiece; 410, first lens;
[0031] 420, second lens; 421, slider; 500, observation chamber; 510, left observation chamber;
[0032] 520, right observation chamber; 530, installation compartment; 610, battery; 611, charging and communication interface;
[0033] 620, card slot; 700, linear moving mechanism; 710, connecting tube; 711, linear guide groove;
[0034] 720, inner drum; 721, arc guide groove; 730, outer drum; 800, shell assembly;
[0035] 810. Objective lens cover; 820. Main compartment. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is a further detailed description of a single-screen 3D night vision device of the utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0037] Please refer to Figure 1-Figure 6 , a single-screen 3D night vision device, comprising:
[0038] The objective lens assembly 100 includes a left objective lens 110, a right objective lens 120 and a fill light unit 130 which are arranged in the same direction. The left objective lens 110 and the right objective lens 120 are arranged at an interpupillary distance, and the fill light unit 130 is arranged on the center line of the left objective lens 110 and the right objective lens 120;
[0039] The control main board 200 is electrically connected to the left objective lens 110, the right objective lens 120, and the fill light unit 130;
[0040] The display screen 300 is disposed behind the objective lens assembly 100 and is electrically connected to the control main board 200. The display screen 300 is configured to display a left image 310 and a right image 320 in parallel. The left image 310 is photographed by the left objective lens 110, and the right image 320 is photographed by the right objective lens 120.
[0041] The eyepiece assembly 400 includes a left eyepiece 401 and a right eyepiece 402;
[0042] The observation chamber 500 is arranged between the display screen 300 and the eyepiece assembly 400. The observation chamber 500 includes a left observation chamber 510 and a right observation chamber 520 that are symmetrically arranged. The left observation chamber 510 and the right observation chamber 520 are independently separated. The left eyepiece 401 observes the left picture 310 through the left observation chamber 510, and the right eyepiece 402 observes the right picture 320 through the right observation chamber 520. The areas of the left observation chamber 510 and the right observation chamber 520 gradually decrease along the direction from the display screen 300 to the eyepiece assembly 400.
[0043] The fill light unit 130 is set on the center line of the left and right lenses, which can ensure that the fill light for the left and right lenses is basically consistent, and the night vision picture taken can better form the naked eye 3D effect. A display screen 300 is used to display the left and right pictures in parallel, so that there will be no problem of blurred pictures and shadows due to the assembly error of the two screens. The left and right pictures are always parallel, and the naked eye 3D effect is better. The observation room 500 adopts a trapezoidal setting, that is, the area of the objective lens end is large and the area of the eyepiece end is small, so that a larger picture can be displayed at the objective lens end, thereby ensuring resolution and observation effect.
[0044] Please refer to Figure 1 and Figure 4 , the width of the left observation cavity 510 and the width of the right observation cavity 520 gradually decrease along the direction from the display screen 300 to the eyepiece assembly 400, and a mounting chamber 530 is formed between the left observation cavity 510 and the right observation cavity 520. That is, the picture can be made wider, and in particular, the height of the left observation cavity 510 and the height of the right observation cavity 520 gradually decrease along the direction from the display screen 300 to the eyepiece assembly 400, that is, the picture can be made higher. It can be understood that the width and height can be combined and decreased along the direction from the display screen 300 to the eyepiece assembly 400.
[0045] Preferably, please refer to Figure 1 and Figure 4 The right side slope of the left observation chamber 510 is greater than the left side slope, and the left side slope of the right observation chamber 520 is greater than the right side slope. This allows more space between the left observation chamber 510 and the right observation chamber 520, that is, the installation chamber 530 has a larger space.
[0046] Please refer to Figure 1 and Figure 4 The installation chamber 530 is provided with a battery 610, and the battery 610 is electrically connected to the control mainboard 200. By configuring the components in the installation chamber 530, the overall structure can be made more compact.
[0047] Please refer to Figure 3 and Figure 4 , further comprising a housing assembly 800, the housing assembly 800 comprising an objective lens cover 810 and a main compartment 820, the objective lens cover 810 and the main compartment 820 being detachably connected, the objective lens assembly 100 being exposed from the objective lens cover 810, and an exposed charging and communication interface 611 being provided at a position of the main compartment 820 corresponding to the mounting compartment 530. It can be understood that the power management circuit board can also be arranged in the mounting compartment 530, the power management circuit board is electrically connected to the control mainboard 200, and the charging and communication interface 611 is provided on the power management circuit board.
[0048] Please refer to Figure 3 and Figure 4 A card slot 620 is also provided at the position of the main compartment 820 corresponding to the installation compartment 530. That is, a memory card slot, which is convenient for placing a memory card.
[0049] Please refer to Figure 1 and Figure 5 The left eyepiece 401 and the right eyepiece 402 both include a first lens 410 and a second lens 420 spaced apart from each other along the direction from the display screen 300 to the eyepiece assembly 400. The two lenses provide a better observation effect than the traditional single lens, and the magnification and clarity are greatly improved.
[0050] Please refer to Figure 1 and Figure 5 The objective lens end face of the first lens 410 is slightly convex, and the eyepiece end face is concave; the objective lens end face of the second lens 420 is convex, and the eyepiece end face is slightly convex, the convexity of the objective lens end face of the second lens 420 is greater than the convexity of the eyepiece end face of the second lens 420, and the convexity of the objective lens end face of the second lens 420 is greater than the convexity of the objective lens end face of the first lens 410.
[0051] Please refer to Figure 1 and Figure 5 The second lens 420 is connected to the linear moving mechanism 700. The structure of the first lens 410 and the second lens 420 allows the distance between the first lens 410 and the display screen 300 to determine the magnification, and the distance between the second lens 420 and the first lens 410 can adjust the focus and diopter.
[0052] Please refer to Figure 1 and Figure 5 The linear moving mechanism 700 includes a connecting cylinder 710, an inner rotating cylinder 720 and an outer rotating cylinder 730. The connecting cylinder 710 is a stator. The connecting cylinder 710 is provided with a linear guide groove 711. The inner rotating cylinder 720 is sleeved outside the connecting cylinder 710. The inner rotating cylinder 720 is provided with an arc guide groove 721. The outer rotating cylinder 730 is sleeved outside the inner rotating cylinder 720 so that the inner rotating cylinder 720 rotates with the rotation of the outer rotating cylinder 730. A slider 421 is provided on the second lens 420. The slider 421 passes through the linear guide groove 711 and is matched with the arc guide groove 721. The slider 421 moves linearly along the linear guide groove 711 following the rotation of the inner rotating cylinder 720, so that the second lens 420 is close to or away from the first lens 410. That is, the rotation is transformed into linear movement, so as to improve the focusing accuracy. It is simple and can also adopt other existing refractive adjustment methods as needed.
[0053] It is understandable that the fill light unit 130 can use a dim light or an infrared light as needed.
[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0055] In summary, the utility model provides a single-screen 3D night vision device, in which the fill light unit is arranged on the center line of the left and right lenses, which can ensure that the fill light for the left and right lenses is basically consistent, and the captured night vision picture can better form the naked eye 3D effect. A display screen is used to display the left and right pictures in parallel, so that there will be no problem of blurred pictures and shadows due to the assembly error of the two screens, and the naked eye 3D effect is better. The observation room adopts a trapezoidal setting, that is, the area of the objective end is large and the area of the eyepiece end is small, so that a larger picture can be displayed at the objective end, thereby ensuring the resolution and observation effect.
[0056] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A single-screen 3D night vision device, characterized in that: include: An objective lens assembly, comprising a left objective lens, a right objective lens and a fill light unit arranged in the same direction, wherein the left objective lens and the right objective lens are arranged at an interpupillary distance, and the fill light unit is arranged on a center line of the left objective lens and the right objective lens; A control mainboard, electrically connected to the left objective lens, the right objective lens, and the fill light unit; A display screen is arranged behind the objective lens assembly and is electrically connected to the control mainboard, wherein the display screen is configured to display a left picture and a right picture in parallel, wherein the left picture is photographed by the left objective lens and the right picture is photographed by the right objective lens; An eyepiece assembly, comprising a left eyepiece and a right eyepiece; An observation chamber is arranged between the display screen and the eyepiece assembly, the observation chamber includes a left observation chamber and a right observation chamber that are symmetrically arranged, the left observation chamber and the right observation chamber are independently separated, the left eyepiece observes the left picture through the left observation chamber, and the right eyepiece observes the right picture through the right observation chamber, and the areas of the left observation chamber and the right observation chamber gradually decrease along the direction from the display screen to the eyepiece assembly.
2. A single-screen 3D night vision device according to claim 1, characterized in that: The width of the left observation cavity and the width of the right observation cavity gradually decrease along the direction from the display screen to the eyepiece assembly, and a mounting chamber is formed between the left observation cavity and the right observation cavity.
3. A single-screen 3D night vision device according to claim 2, characterized in that: The right side slope of the left observation cavity is greater than the left side slope, and the left side slope of the right observation cavity is greater than the right side slope.
4. A single-screen 3D night vision device according to claim 2 or 3, characterized in that: A battery is arranged in the installation compartment, and the battery is electrically connected to the control mainboard.
5. A single-screen 3D night vision device according to claim 4, characterized in that: It also includes a shell assembly, which includes an objective lens cover and a main compartment, the objective lens cover and the main compartment are detachably connected, the objective lens assembly is exposed from the objective lens cover, and an exposed charging and communication interface is provided at a position of the main compartment corresponding to the installation compartment.
6. A single-screen 3D night vision device according to claim 5, characterized in that: A card insertion slot is also provided at a position of the main compartment corresponding to the installation compartment.
7. The single-screen 3D night vision device according to claim 1, characterized in that: The left eyepiece and the right eyepiece each include a first lens and a second lens that are spaced apart from each other along a direction from the display screen to the eyepiece assembly.
8. The single-screen 3D night vision device according to claim 7, characterized in that: The objective lens end face of the first lens is a slightly convex surface, and the eyepiece end face is a concave surface; the objective lens end face of the second lens is a convex surface, and the eyepiece end face is a slightly convex surface, the convexity of the objective lens end face of the second lens is greater than the convexity of the eyepiece end face of the second lens, and the convexity of the objective lens end face of the second lens is greater than the convexity of the objective lens end face of the first lens.
9. A single-screen 3D night vision device according to claim 7 or 8, characterized in that: The second lens is connected with a linear movement mechanism.
10. A single-screen 3D night vision device according to claim 9, characterized in that: The linear motion mechanism includes a connecting cylinder, an inner rotating cylinder and an outer rotating cylinder, the connecting cylinder is a stator, a linear guide groove is provided on the connecting cylinder, the inner rotating cylinder is sleeved outside the connecting cylinder, an arc guide groove is provided on the inner rotating cylinder, the outer rotating cylinder is sleeved outside the inner rotating cylinder and makes the inner rotating cylinder rotate with the rotation of the outer rotating cylinder, a slider is provided on the second lens, the slider passes through the linear guide groove and is adapted to the arc guide groove, the slider follows the rotation of the inner rotating cylinder and moves linearly along the linear guide groove, so that the second lens is close to or away from the first lens.