Miniaturized 3D night vision device

Abstract

The utility model relates to a miniaturized 3D night vision device, comprising an eyepiece assembly; the reflecting mirror is arranged in front of the eyepiece assembly, an angle a is formed between the reflecting mirror and an incident picture of the eyepiece assembly, and the angle a meets 0 degree lt; a < lt >; 60 degrees; an angle b is formed between the display screen module and the reflecting mirror, and the angle b meets 0 degree lt; a < lt >; a display picture of the display screen module enters the eyepiece assembly through the reflection of the reflector; the objective lens assembly is arranged at one end, far away from the eyepiece assembly, of the reflecting mirror, an installation space is formed between the reflecting mirror and the objective lens assembly, and the section of the installation space is triangular or trapezoidal.

Description

Technical Field

[0001] The utility model relates to the technical field of night vision devices, in particular to a miniaturized 3D night vision device. Background Art

[0002] A night vision device is a device that observes and shoots at night by supplementing light. A 3D night vision device introduces naked-eye 3D technology on the basis of a traditional night vision device to allow users to experience the observation effect of naked-eye 3D. The existing binocular night vision devices are relatively large in size and inconvenient to carry. Especially for those with a head-mounted requirement, it will cause a great burden on the head. Summary of the Utility Model

[0003] In view of the above situation, it is necessary to propose a miniaturized 3D night vision device.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A miniaturized 3D night vision device, comprising:

[0006] An eyepiece assembly;

[0007] A reflector, arranged in front of the eyepiece assembly, the reflector is arranged at an angle a with the incident picture of the eyepiece assembly, and the angle a satisfies 0° < a < 60°;

[0008] A display screen module, arranged at an angle b with the reflector, the angle b satisfies 0° < a < 60°, and the display picture of the display screen module enters the eyepiece assembly through the reflection of the reflector;

[0009] An objective lens assembly, arranged at one end of the reflector away from the eyepiece assembly, an installation space is formed between the reflector and the objective lens assembly, and the cross-section of the installation space is triangular or trapezoidal.

[0010] Further, the eyepiece assembly includes a left eyepiece and a right eyepiece, and the left eyepiece and the right eyepiece are arranged side by side at intervals.

[0011] Further, the display screen module includes a left screen and a right screen, the left screen corresponds to the left eyepiece, and the right screen corresponds to the right eyepiece.

[0012] Further, the reflector includes a left mirror and a right mirror, the left mirror reflects the display picture of the left screen to the left eyepiece, and the right mirror reflects the display picture of the right screen to the right eyepiece.

[0013] Furthermore, it includes a mounting frame, which has an observation cavity, one end of the observation cavity is provided with an eyepiece mounting portion, the other end of the observation cavity is provided with a reflector mounting portion, the upper side or the lower side of the observation cavity is provided with a display screen mounting portion, the eyepiece mounting portion is connected to the eyepiece assembly, the reflector mounting portion is used to install the reflector, and the display screen mounting portion is used to install the display screen module.

[0014] Furthermore, the display screen mounting portion and the reflector mounting portion both include a connecting mounting groove and a connecting hole, the connecting hole is connected to the observation cavity, and the connecting groove is located at one end of the connecting hole away from the observation cavity.

[0015] Furthermore, the observation chamber has a left chamber and a right chamber, and a partition chamber is provided between the left chamber and the right chamber, and the partition chamber opens away from the eyepiece assembly.

[0016] Furthermore, a battery is arranged in the installation space.

[0017] Furthermore, the left eyepiece and the right eyepiece are both composed of a first lens and a second lens.

[0018] Furthermore, the left eyepiece and the right eyepiece both have a focusing mechanism, which includes a connecting tube, an inner rotating tube and an outer rotating tube, the connecting tube is a stator, a linear guide groove is provided on the connecting tube, the inner rotating tube is sleeved outside the connecting tube, an arc guide groove is provided on the inner rotating tube, the outer rotating tube is sleeved outside the inner rotating tube and makes the inner rotating tube rotate with the rotation of the outer rotating tube, a slider is provided on the first 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 tube, so that the first lens is close to or away from the second lens.

[0019] The beneficial effect of the utility model is that the display image of the inclined display screen enters the eyepiece assembly after being reflected by the inclined reflector. Compared with the traditional method in which the display screen image directly enters the eyepiece assembly, the occupied space in the axial direction (the direction from the eyepiece assembly to the objective lens assembly) is greatly reduced while maintaining the original observation effect, and an installation space can be formed between the reflector and the objective lens assembly for installing components such as batteries and circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional structure diagram of a miniaturized 3D night vision device according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of a miniaturized 3D night vision device according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of a mounting frame of a miniaturized 3D night vision device according to an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the exploded structure of a miniaturized 3D night vision device according to an embodiment of the utility model.

[0024] Description of labels:

[0025] 100, eyepiece assembly; 101, left eyepiece; 102, right eyepiece; 110, first lens; 111, slider;

[0026] 120, second lens; 200, reflector; 201, left mirror; 202, right mirror; 300, display screen module;

[0027] 301, left screen; 302, right screen; 400, objective lens assembly; 410, left objective lens; 420, right objective lens;

[0028] 430, fill light unit; 500, installation space; 600, mounting frame; 610, observation cavity; 611, left cavity;

[0029] 612, right cavity; 620, eyepiece mounting portion; 630, reflector mounting portion; 640, display screen mounting portion;

[0030] 641, mounting groove; 642, mounting hole; 650, spacer; 700, battery; 810, connecting tube;

[0031] 811, linear guide groove; 820, inner rotating drum; 821, arc guide groove; 830, outer rotating drum. DETAILED DESCRIPTION

[0032] 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 miniaturized 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.

[0033] Please refer to Figure 1-Figure 4 , a miniaturized 3D night vision device, comprising:

[0034] Eyepiece assembly 100;

[0035] The reflector 200 is arranged in front of the eyepiece assembly 100, and the reflector 200 and the incident image of the eyepiece assembly are arranged at an angle a, and the angle a satisfies 0° <a<60°;

[0036] The display screen module 300 is arranged at an angle b with the reflector 200, where the angle b satisfies 0° < a < 60°. The display image of the display screen module 300 enters the eyepiece assembly 100 through the reflection of the reflector 200.

[0037] The objective lens assembly 400 is arranged at one end of the reflector 200 away from the eyepiece assembly 100. An installation space 500 is formed between the reflector 200 and the objective lens assembly 400, and the cross-section of the installation space 500 is triangular or trapezoidal.

[0038] The display image of the inclined display screen enters the eyepiece assembly 100 after being reflected by the inclined reflector 200. Compared with the traditional way of directly entering the eyepiece assembly 100 by the display screen image, the occupied space in the axial direction (the direction from the eyepiece assembly 100 to the objective lens assembly 400) is greatly reduced while maintaining the original observation effect, and an installation space 500 can be formed between the reflector 200 and the objective lens assembly 400 for installing components such as the battery 700 and the circuit board.

[0039] The eyepiece assembly 100 includes a left eyepiece 101 and a right eyepiece 102, and the left eyepiece 101 and the right eyepiece 102 are arranged side by side at intervals. Generally, the display screen module 300 of a naked-eye 3D night vision device displays a first image and a second image with a pupil distance difference, and the two images with a pupil distance difference enter the left and right eyes respectively to form a naked-eye 3D effect. By setting the left eyepiece 101 and the right eyepiece 102, the first image enters the left eyepiece 101 and the second image enters the right eyepiece 102, thus facilitating the formation of a 3D effect.

[0040] Please refer to Figure 2-Figure 4 , as an implementation manner, the display screen module 300 includes a left screen 301 and a right screen 302. The left screen 301 corresponds to the left eyepiece 101, and the right screen 302 corresponds to the right eyepiece 102. It can be understood that the left screen 301 displays the first image and the right screen 302 displays the second image to form a naked-eye 3D effect. Or, as another implementation manner of the present invention, a single screen can also be used to display the first image and the second image through software configuration.

[0041] Please refer to Figure 2-Figure 4 , as an implementation manner, the reflector 200 includes a left mirror 201 and a right mirror 202. The left mirror 201 reflects the display image of the left screen 301 to the left eyepiece 101, and the right mirror 202 reflects the display image of the right screen 302 to the right eyepiece 102. Or, as another implementation manner of the present invention, a single whole reflector 200 can also be used to reflect the left screen 301 and the right screen 302.

[0042] Please refer to Figure 1-Figure 4, further comprising a mounting frame 600, wherein the mounting frame 600 has an observation cavity 610, an eyepiece mounting portion 620 is disposed at one end of the observation cavity 610, a reflector 200 mounting portion is disposed at the other end of the observation cavity 610, a display screen mounting portion 640 is disposed at the upper side or the lower side of the observation cavity 610, the eyepiece mounting portion 620 is connected to the eyepiece assembly 100, the reflector 200 mounting portion is used to mount the reflector 200, and the display screen mounting portion 640 is used to mount the display screen module 300. The mounting frame 600 is provided to facilitate the installation of various components and to facilitate the setting of the interpupillary distance between the left eyepiece 101 and the right eyepiece 102.

[0043] Please refer to Figure 1-Figure 4 The display screen mounting portion 640 and the reflector 200 mounting portion both include a connecting mounting groove 641 and a mounting hole 642, the mounting hole 642 is connected to the observation cavity 610, and the mounting groove 641 is located at one end of the mounting hole 642 away from the observation cavity 610. Generally, the display screen module 300 is configured in the mounting groove 641 by bonding, and the reflector 200 is similar.

[0044] Please refer to Figure 2-Figure 4 The observation chamber 610 has a left chamber 611 and a right chamber 612, and a spacer 650 is provided between the left chamber 611 and the right chamber 612, and the spacer 650 opens away from the eyepiece assembly 100. The spacer 650 can ensure the display effect of naked-eye 3D and avoid image interference, and can be configured with components such as charging and communication circuit boards, charging and communication interfaces, etc. as needed.

[0045] Please refer to Figure 1-Figure 2 A battery 700 is disposed in the installation space 500. Other components may also be disposed as required.

[0046] Please refer to Figure 2-Figure 4 , the left eyepiece 101 and the right eyepiece 102 are both composed of a first lens 110 and a second lens 120. The first lens 110 and the second lens 120 cooperate to obtain a suitable magnification, and when a focusing structure is adopted, the focusing stroke is small. Preferably, the first lens 110 is a biconvex lens, and the curvature of the eyepiece surface (the side close to the eye) is smaller than the curvature of the objective lens surface (the side away from the eye); the eyepiece surface of the second lens 120 is a concave surface, and the objective lens surface is a slightly convex surface or a plane.

[0047] Please refer to Figure 2-Figure 4Both the left eyepiece 101 and the right eyepiece 102 have a focusing mechanism, which includes a connecting tube 810, an inner rotating tube 820 and an outer rotating tube 830. The connecting tube 810 is a stator, and a linear guide groove 811 is provided on the connecting tube 810. The inner rotating tube 820 is sleeved outside the connecting tube 810, and an arc guide groove 821 is provided on the inner rotating tube 820. The outer rotating tube 830 is sleeved outside the inner rotating tube 820 and makes the inner rotating tube 820 rotate with the rotation of the outer rotating tube 830. A slider 111 is provided on the first lens 110, and the slider 111 passes through the linear guide groove 811 and is adapted to the arc guide groove 821. The slider 111 follows the rotation of the inner rotating tube 820 and moves linearly along the linear guide groove 811, so that the first lens 110 is close to or away from the second lens 120. Preferably, the eyepiece mounting portion 620 is a mounting tube, the second lens 120 is fixedly disposed in the mounting tube, and the connecting tube 810 is connected to the mounting tube, and the connection method can be a screw connection or a snap connection.

[0048] Generally, the objective lens assembly 400 includes a left objective lens 410, a right objective lens 420 and a fill light unit 430. The left objective lens 410 and the right objective lens 420 are arranged at an interpupillary distance. The fill light unit 430 can use a dim light or an infrared light for night vision. The left objective lens 410 captures the first picture, and the right objective lens 420 captures the second picture. Alternatively, only one objective lens can be used to form the first picture and the second picture with interpupillary distance parallax through software.

[0049] 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.

[0050] In summary, the utility model provides a miniaturized 3D night vision device, in which the display image of the tilted display screen is reflected by the tilted reflector and then enters the eyepiece assembly. Compared with the traditional method in which the display screen image directly enters the eyepiece assembly, the occupied space in the axial direction (the direction from the eyepiece assembly to the objective lens assembly) is greatly reduced while maintaining the original observation effect, and an installation space can be formed between the reflector and the objective lens assembly for installing components such as batteries and circuit boards.

[0051] 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 miniaturized 3D night vision device, characterized in that: Comprising: An eyepiece assembly; A reflector, arranged in front of the eyepiece assembly, the reflector being arranged at an angle a with the incident picture of the eyepiece group, and the angle a satisfies 0° < a < 60°; A display screen module, arranged at an angle b with the reflector, the angle b satisfies 0° < a < 60°, and the display picture of the display screen module enters the eyepiece assembly through the reflection of the reflector; An objective lens assembly, arranged at one end of the reflector away from the eyepiece assembly, an installation space is formed between the reflector and the objective lens assembly, and the cross-section of the installation space is triangular or trapezoidal.

2. A miniaturized 3D night vision device according to claim 1, characterized in that: The eyepiece assembly includes a left eyepiece and a right eyepiece, and the left eyepiece and the right eyepiece are arranged side by side at intervals.

3. A miniaturized 3D night vision device according to claim 2, characterized in that: The display screen module includes a left screen and a right screen, the left screen corresponds to the left eyepiece, and the right screen corresponds to the right eyepiece.

4. A miniaturized 3D night vision device according to claim 3, characterized in that: The reflector includes a left mirror and a right mirror, the left mirror reflects the display picture of the left screen to the left eyepiece, and the right mirror reflects the display picture of the right screen to the right eyepiece.

5. The miniaturized 3D night vision device according to claim 1, characterized in that: It further includes a mounting bracket, the mounting bracket has an observation cavity, one end of the observation cavity is configured with an eyepiece mounting part, the other end of the observation cavity is configured with a reflector mounting part, the upper side or the lower side of the observation cavity is configured with a display screen mounting part, the eyepiece mounting part is connected to the eyepiece assembly, the reflector mounting part is used to mount the reflector, and the display screen mounting part is used to mount the display screen module.

6. A miniaturized 3D night vision device according to claim 5, characterized in that: Both the display screen mounting part and the reflector mounting part include a communicating mounting groove and a mounting hole, the mounting hole communicates with the observation cavity, and the mounting groove is located at one end of the mounting hole away from the observation cavity.

7. The miniaturized 3D night vision device according to claim 5, characterized in that: The observation cavity has a left cavity and a right cavity, and there is a spacer chamber between the left cavity and the right cavity, and the spacer chamber opens away from the eyepiece assembly.

8. The miniaturized 3D night vision device according to claim 1, characterized in that: A battery is arranged in the installation space.

9. The miniaturized 3D night vision device according to claim 2, characterized in that: Both the left eyepiece and the right eyepiece are composed of a first lens and a second lens.

10. The miniaturized 3D night vision device according to claim 9, characterized in that: Both the left eyepiece and the right eyepiece have a focusing mechanism, the focusing 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 arranged on the connecting cylinder, the inner rotating cylinder is sleeved outside the connecting cylinder, an arc-shaped guide groove is arranged 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 arranged on the first lens, the slider passes through the linear guide groove and is adapted to the arc-shaped guide groove, and the slider moves linearly along the linear guide groove following the rotation of the inner rotating cylinder, so that the first lens approaches or moves away from the second lens.

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