CN218630343U

CN218630343U - Special low-light-level visual field instrument for night vision

Info

Publication number: CN218630343U
Application number: CN202222961051.3U
Authority: CN
Inventors: 杨黎; 陈伟东
Original assignee: Shaanxi Zhiyuan Kefeng Photoelectric Technology Co ltd
Current assignee: Shaanxi Zhiyuan Kefeng Photoelectric Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-14
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a special visual field appearance of shimmer night vision, including box subassembly, objective assembly, diaphragm subassembly, reticle subassembly, dodging subassembly, light source and illuminance test subassembly, objective assembly sets up in the one end of box subassembly, the light source sets up in the other end of box subassembly, reticle subassembly sets up in the box subassembly, the diaphragm subassembly sets up in the box subassembly, and is located between objective assembly and the reticle subassembly, dodging subassembly sets up in the box subassembly, and is located between light source and the reticle subassembly, illuminance test subassembly sets up on the inner wall of box subassembly. The utility model discloses a shimmer night vision field of view appearance confirms the inside illuminance of shimmer night vision field of view appearance in real time, makes the inside shimmer environment that reaches the standard of shimmer night vision field of view appearance to utilize the diaphragm to shelter from the outer stray light of light path, avoid influencing the test result, with the field of view test precision that promotes shimmer night vision system.

Description

Special low-light-level visual field instrument for night vision

Technical Field

The utility model belongs to the technical field of optical instrument, concretely relates to special visual field appearance of shimmer night vision.

Background

At present, big visual field measurement system class instrument mainly is applied to the visible light system, being used for under the micro optical system environment, need carry out a lot of repacking debugs in earlier stage, make inside illuminance of visual field appearance satisfy the low light illuminance demand, if illuminance is too big, can lead to being surveyed the appearance and damage, consequently need debug the visual field appearance again before the test, this debugging process need unpack the visual field appearance apart, assemble again after the debugging, it is very inconvenient to use, and because need assemble again, also can bring the influence to subsequent measuring accuracy.

SUMMERY OF THE UTILITY MODEL

In view of this, the main objective of the present invention is to provide a low-light-level night vision field device.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the embodiment of the utility model provides a special visual field appearance of shimmer night vision, including box subassembly, objective assembly, diaphragm subassembly, reticle assembly, dodging subassembly, light source and illuminance test assembly, objective assembly sets up in the one end of box subassembly, the light source sets up in the other end of box subassembly for provide shimmer luminance, when satisfying little light condition, when making measured little light pass through reticle assembly, read reticle assembly's scale, reticle assembly sets up in the box subassembly, the diaphragm subassembly sets up in the box subassembly, and is located between objective assembly and the reticle assembly, is used for sheltering from other stray light outside the effective light path, dodging subassembly sets up in the box subassembly, and is located between light source and the reticle assembly for disperse little light, provide reticle assembly behind the dodging, illuminance test assembly sets up on the inner wall of box subassembly, and is located between reticle assembly and the dodging subassembly, is used for measuring the illuminance in the box subassembly.

In the above scheme, the box body subassembly includes box body and handle, the box body is one of rectangle or square, the handle is located the box body left and right sides, is convenient for remove the special visual field appearance of shimmer night vision.

In the above scheme, the objective lens assembly is a fixed-focus optical system, and comprises a lens system and a connecting block, the lens system is fixed by a space ring or a pressing ring, the box body and the connecting block are fixed by screws, and the lens system and the connecting block are in threaded connection, so that the objective lens assembly is fixedly connected with the box body.

In the above scheme, the diaphragm assembly comprises a plurality of diaphragms which are uniformly arranged in the box body.

In the scheme, the reticle assembly comprises a reticle mounting seat, a reticle pressing ring, a reticle connecting plate, a reticle translation table and a reticle, the reticle translation table is arranged at the inner bottom of the box body, the reticle mounting seat is mounted on the reticle translation table through the reticle connecting plate, and the reticle is mounted on the reticle mounting seat through the reticle pressing ring.

In the above scheme, the dodging assembly comprises a dodging sheet and a dodging sheet fixing plate, the dodging sheet is fixed on the dodging sheet fixing plate, and the dodging sheet fixing plate is installed at the inner bottom of the box body and is located on one side of the reticle mounting seat.

In the scheme, the light homogenizing sheet is one of an acrylic plate, ground glass or a microstructure sheet.

In the above scheme, illuminance test subassembly includes low light level detector and illuminance display, the low light level detector is located the top of graticule subassembly, with the top fixed connection of box body, the illuminance display is fixed in on the outer wall of box body for show the illuminance value that the low light level detector detected after being connected with the communication of low light level detector.

Compared with the prior art, the utility model discloses a glimmer night vision field of vision appearance confirms the inside illuminance of glimmer night vision field of vision appearance in real time, makes the inside shimmer environment that reaches the standard of glimmer night vision field of vision appearance to utilize the diaphragm to shelter from the stray light outside the light path, avoid influencing the test result, with the visual field test accuracy who promotes glimmer night vision system.

Drawings

Fig. 1 is a schematic view of an internal structure of a low-light-level night vision field device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an external structure of a low-light-level night vision special view field device according to an embodiment of the present invention;

fig. 3 is a schematic view of a reticle assembly and a dodging assembly in a low-light-level night vision special view field device according to an embodiment of the present invention;

fig. 4 is a light path diagram of the utility model, which is provided by an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the utility model provides a special visual field appearance of shimmer night vision, as shown in figure 1 and figure 2, including box subassembly 1, objective assembly 2, diaphragm subassembly, reticle subassembly 4, dodging subassembly 5, light source 6 and illuminance test component, objective assembly 2 sets up in box subassembly 1's one end, light source 6 sets up in box subassembly 1's the other end for provide shimmer luminance, when satisfying the shimmer condition, makes when being surveyed the little light and passing through reticle subassembly 4, reads reticle subassembly 4's scale, reticle subassembly 4 sets up in box subassembly 1, the diaphragm subassembly sets up in box subassembly 1, and is located between objective assembly 2 and the reticle subassembly 4 for shelter from other stray light outside the effective light path, dodging subassembly 5 sets up in box subassembly 1, and is located between light source 6 and the reticle subassembly 4, is used for diverging light, provides illuminance reticle subassembly 4 after the dodging, test component sets up on box subassembly's the inner wall, and is located between reticle subassembly 4 and the reticle subassembly 5 for measure the illuminance of box subassembly 1.

As shown in fig. 1 and 4, the objective lens assembly 2 is a fixed focus optical system, and includes a lens system 21 and a connecting block 22, the lens system 21 is fixed by a spacer or a pressing ring, the box body 11 and the connecting block 22 are fixed by screws, the lens system 21 and the connecting block 22 are connected by threads, so that the objective lens assembly 2 is fixedly connected with the box body 11.

As shown in fig. 1 and 2, the box assembly includes a box body 11 and a handle 12, the box body 11 is one of a rectangle or a square, and the handle 12 is located at the left and right sides of the box body 11, so as to facilitate moving the low-light night vision special view field device.

In the above scheme, the box body 11 is made of an aluminum alloy material, the inner side surfaces of the box body are subjected to dawn treatment, the six surfaces of the box body are arranged in a crossed manner, the edges of the box body are fixed by screws to form a square or rectangular structure, so that the structural stability is ensured, and the handles 12 are positioned on the left side and the right side of the box body 11 and have the same height, so that the special low-light night vision field-of-view instrument can be conveniently moved.

As shown in fig. 1, the diaphragm assembly includes a plurality of diaphragms 3 uniformly arranged in a box body 11.

In the above scheme, the diaphragm 3 is reserved with a light-passing aperture according to the aperture of light, two sides of the diaphragm are bent, the bent part is punched, a hole site corresponds to the box body 11, the diaphragm 3 and the box body 11 are fixed by screws, and the diaphragm 3 is completely subjected to extinction treatment, so that the influence of stray light on a measurement result is avoided.

As shown in fig. 1 and 3, the reticle assembly 4 includes a reticle mounting base 41, a reticle pressing ring 42, a reticle connecting plate 43, a reticle translation stage 44 and a reticle 45, the reticle translation stage 44 is disposed at the inner bottom of the box body 1, the reticle mounting base 41 is mounted on the reticle translation stage 44 through the reticle connecting plate 43, and the reticle 45 is mounted on the reticle mounting base 41 through the reticle pressing ring 42.

In the above scheme, the background of the reticle 45 is black, the scribed line part is light-permeable, and the reticle mounting seat 41, the reticle pressing ring 42, the reticle connecting plate 43 and the reticle translation stage 44 are required to be subjected to extinction treatment.

Furthermore, the reticle mounting seat 41 is used for positioning the reticle 45, the reticle 45 is arranged in the reticle mounting seat 41, and the reticle 45 is tightly pressed with the reticle mounting seat 41 by using the reticle pressing ring 42, so that the reticle 45 is prevented from shaking and shifting;

further, the reticle mounting base 41 and the reticle connecting plate 43 are fixed at the bottom end by using countersunk screws, and a U-shaped groove is reserved in the side edge of the reticle connecting plate 43 and used for ensuring that the reticle 45 is located at the focal plane position of the lens assembly 21 during debugging.

Furthermore, the width of the reticle translation stage 44 reserves the moving distance of the reticle connecting plate 43, so that the reticle connecting plate 43 can move back and forth within the range of the U-shaped groove of the reticle translation stage; threaded holes are reserved at the positions where the bottom end of the reticle translation stage 44 is matched with the positions of the U-shaped grooves of the reticle connecting plate 43.

Furthermore, the reticle translation stage 44 is connected with the box bottom plate 13 by screws, and during debugging, the reticle connecting plate 43 drives the reticle mounting seat 41 to move back and forth, so that the reticle 45 in the reticle mounting seat 41 is located at the focal plane position of the lens system 21, and the U-shaped groove of the reticle connecting plate 43 is connected with the threaded hole of the reticle translation stage 44 by screws and locked, so that the reticle 45 is fixed at the focal plane position of the lens system 21.

As shown in fig. 1 and 3, the dodging assembly 5 includes a dodging sheet 51 and a dodging sheet fixing plate 52, the dodging sheet 51 is fixed on the dodging sheet fixing plate 52, and the dodging sheet fixing plate 52 is installed at the inner bottom of the box body 11 and is located at one side of the reticle installation base 41.

In the above scheme, the light uniformizing sheet 51 is one of an acrylic plate, ground glass or a microstructure sheet, and the light uniformizing sheet 51 and the light uniformizing sheet fixing plate 52 are linked by using an adhesion process.

As shown in fig. 1, the illuminance testing assembly 7 includes a low illuminance detector 71 and an illuminance display 72, the low illuminance detector 71 is located above the reticle assembly 4 and is fixedly connected to the top of the box body 11, and the illuminance display 72 is fixed to the outer wall of the box body 11 and is configured to display an illuminance value detected by the low illuminance detector 71 after being in communication connection with the low illuminance detector 71.

In the above scheme, the light source 6 is an adjustable light source, and the lowest illumination satisfies the dim light environment 10 ^-1 lux～10 ^-4 lux requirements, light sources including but not limited to LED light sources, tungsten bromide light sources.

In summary, the reticle 45 is located at the focal plane of the lens system 21, so that the light rays outside the lens system 21 are parallel light, the measured micro-optical system can see the reticle 45 clearly through the objective lens assembly 2, and the range of the visible reticle angle scale is the field angle of the measured micro-optical system.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood according to specific situations by those of ordinary skill in the art.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a special visual field appearance of shimmer night vision, its characterized in that includes box subassembly, objective lens subassembly, diaphragm subassembly, reticle assembly, dodging subassembly, light source and illuminance test component, objective lens subassembly sets up in the one end of box subassembly, the light source sets up in the other end of box subassembly for when satisfying the shimmer condition, make when being surveyed the microphoto through the reticle assembly, read the scale of reticle assembly, reticle assembly sets up in the box subassembly, the diaphragm subassembly sets up in the box subassembly, and is located between objective lens subassembly and the reticle assembly, is used for sheltering from other stray light outside the effective light path, dodging subassembly sets up in the box subassembly, and is located between light source and the reticle assembly for disperse shimmer light, provide the reticle assembly behind the dodging, illuminance test component sets up on the inner wall of box subassembly, and is located between reticle assembly and the dodging subassembly, is used for measuring the illuminance in the box subassembly.

2. The special low-light night vision viewer of claim 1, wherein the box assembly comprises a box body and a handle, the box body is one of rectangular or square, and the handle is located on the left side and the right side of the box body to facilitate movement of the special low-light night vision viewer.

3. The finder as claimed in claim 2, wherein the objective lens assembly is a fixed focus optical system, and comprises a lens system and a connecting block, the lens system is fixed by a spacer or a pressing ring, the box body and the connecting block are fixed by screws, and the lens system and the connecting block are connected by screws, so that the objective lens assembly is fixedly connected with the box body.

4. The field of view instrument of claim 2 or 3, wherein the aperture assembly comprises a plurality of apertures uniformly arranged in the housing body.

5. The special low-light-level night vision field instrument as claimed in claim 4, wherein the reticle assembly comprises a reticle mounting seat, a reticle clamping ring, a reticle connecting plate, a reticle translation stage and a reticle, the reticle translation stage is arranged at the inner bottom of the box body, the reticle mounting seat is mounted on the reticle translation stage through the reticle connecting plate, and the reticle is mounted on the reticle mounting seat through the reticle clamping ring.

6. The special low-light-level night vision field instrument as claimed in claim 5, wherein the light homogenizing assembly comprises a light homogenizing sheet and a light homogenizing sheet fixing plate, the light homogenizing sheet is fixed on the light homogenizing sheet fixing plate, and the light homogenizing sheet fixing plate is installed at the bottom inside the box body and is located at one side of the reticle mounting seat.

7. The special low-light-level night vision viewer of claim 6, wherein the light homogenizing sheet is one of acrylic sheet, frosted glass or micro-structured sheet.

8. The special low-light night vision field instrument as claimed in claim 7, wherein the illuminance test assembly comprises a low illuminance detector and an illuminance display, the low illuminance detector is located above the reticle assembly and fixedly connected with the top of the box body, and the illuminance display is fixed on the outer wall of the box body and used for displaying the illuminance value detected by the low illuminance detector after being in communication connection with the low illuminance detector.