CN207689735U - A kind of light filling lens of infrared night video camera - Google Patents
A kind of light filling lens of infrared night video camera Download PDFInfo
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- CN207689735U CN207689735U CN201721880104.1U CN201721880104U CN207689735U CN 207689735 U CN207689735 U CN 207689735U CN 201721880104 U CN201721880104 U CN 201721880104U CN 207689735 U CN207689735 U CN 207689735U
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- lens
- light
- video camera
- emitting surface
- refraction
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Abstract
The utility model discloses a kind of light filling lens of infrared night video camera, lens carrier including lens and with accommodating cavity, the lens carrier is equipped with upper end opening, the lens are installed on by the upper end opening of the lens carrier in the accommodating cavity, the lens carrier is fixed on infrared lamp bead or circuit board, the lens include the light-emitting surface and plane of refraction of upper and lower concentric setting, the light-emitting surface and plane of refraction are rectangular configuration, and the area of the light-emitting surface is more than the area of plane of refraction, the bottom surface of the lens carrier is equipped with the light well suitable for the plane of refraction, the fully reflecting surface that the periphery of the plane of refraction is obliquely installed upwards by four is connect with light-emitting surface, it is 16 so that light is formed by rectangular light spot Aspect Ratio after lens:9.The utility model can significantly improve light utilization ratio, and energy-efficient purpose may be implemented.
Description
Technical field
The utility model is related to thermal camera field more particularly to a kind of light filling lens of infrared night video camera.
Background technology
Common camera can observe external environment in the case where there is sufficient visible light, but when illumination condition is bad
It cannot observe external environment.Thermal camera is other than having common camera function, arrange in pairs or groups infrared light supply and infrared benefit
Optical lens, it can be achieved that when night or bad illumination condition external environment observation.
Traditional thermal camera uses 1:1 or 4:3 sensitive chip, cameras view to range be mostly 1:1
Square area or 4:3 rectangular area.The common infrared light filling lens light extraction shape of circle is circular light spot, although can
It to cover camera lens visible area, but has significant portion light and is in except cameras view region, cause light utilization
Waste.Especially as 16:The appearance of 9 sensitive chips, this waste are more obvious.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and it is saturating to provide a kind of light filling of infrared night video camera
Mirror can significantly improve light utilization ratio, to realize energy-efficient purpose.
The technical solution of the utility model is as follows：A kind of light filling lens of infrared night video camera, including lens and have
The lens carrier of accommodating cavity, the lens carrier are equipped with upper end opening, the upper end opening that the lens pass through the lens carrier
It is installed in the accommodating cavity, the lens carrier is fixed on infrared lamp bead or circuit board, and the lens include coaxial up and down
The light-emitting surface and plane of refraction of heart setting, the light-emitting surface and plane of refraction are rectangular configuration, and the area of the light-emitting surface is more than
The area of plane of refraction, the bottom surface of the lens carrier are equipped with the light well suitable for the plane of refraction, and the periphery of the plane of refraction is logical
It crosses the fully reflecting surface that four are obliquely installed upwards to connect with light-emitting surface, keeps the rectangular light spot that light is formed by after lens long
Wide ratio is 16:9.
In the above-mentioned technical solutions, the length, width and height of the light-emitting surface are respectively 16mm, 11.5mm, 2mm, the height of the lens
Degree is 8.3mm, and the aperture of the light well is 3.5mm*3.5mm.
In the above-mentioned technical solutions, the length, width and height of the lens carrier are respectively 18mm, 13.5mm, 9mm.
In the above-mentioned technical solutions, the both sides for opening being located on the lens carrier are provided with buckle, the light-emitting surface
Both sides are equipped with card slot corresponding with the buckle, and the lens are fixedly mounted on by the buckle, card slot on lens carrier.
In the above-mentioned technical solutions, the bottom surface setting of the lens carrier is there are three positioning column, three positioning columns at
120 degree of section distributions, the lens carrier are located in by the positioning column in infrared lamp bead or circuit board.
In the above-mentioned technical solutions, the surface treatment of the light-emitting surface is shiny surface or frosting.
In the above-mentioned technical solutions, the color of the light-emitting surface is transparent, blue, purple or black.
In the above-mentioned technical solutions, the material of the lens is PC or PMMA.
In the above-mentioned technical solutions, the material of the lens carrier is PC or ABS.
Compared with the existing technology, the beneficial effects of the utility model are：The utility model is reflected using central ray, side
Along the method for light reflection, center index ellipsoid is designed as rectangular area, and periphery reflector space is designed as four fully reflecting surfaces, from
And realize that light is presented the effect of rectangular light spot after lens, the utility model by the length, width and height of light-emitting surface separately design for
16mm, 11.5mm, 2mm, lens height are designed as 8.3mm, and the aperture design of light well is 3.5mm*3.5mm, and by adjusting
The gradient of fully reflecting surface, it is 16 so that light is formed by rectangular light spot Aspect Ratio after lens:9, hot spot beam angle can
Arbitrarily to adjust, to which CCD is 16 to adaptation in the market:9 arbitrary video camera.For 16:For 9 video camera, this reality of arranging in pairs or groups
Light utilization ratio can be significantly improved with novel, energy-efficient purpose may be implemented.
Description of the drawings
Fig. 1 be a kind of three-dimensional structure diagram of the light filling lens of infrared night video camera described in the utility model embodiment it
One；
Fig. 2 be a kind of three-dimensional structure diagram of the light filling lens of infrared night video camera described in the utility model embodiment it
Two；
Fig. 3 is a kind of internal structure chart of the light filling lens of infrared night video camera described in the utility model embodiment；
Fig. 4 is a kind of vertical view of the light filling lens of infrared night video camera described in the utility model embodiment；
Fig. 5 is a kind of side view of the light filling lens of infrared night video camera described in the utility model embodiment；
Fig. 6 is a kind of upward view of the light filling lens of infrared night video camera described in the utility model embodiment；
Fig. 7 is one of the structural schematic diagram of lens described in the utility model embodiment；
Fig. 8 is the second structural representation of lens described in the utility model embodiment；
Fig. 9 is the vertical view of lens described in the utility model embodiment；
Figure 10 is the side view of lens described in the utility model embodiment；
Figure 11 is a kind of upward view of the light filling lens of infrared night video camera described in another embodiment of the utility model.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Please refer to Fig.1~10, a kind of light filling lens of infrared night video camera of the utility model embodiment, including lens 1
With the lens carrier 2 with accommodating cavity, lens carrier 2 is equipped with upper end opening, and lens 1 are pacified by the upper end opening of lens carrier 2
Loaded in accommodating cavity, the both sides that opening is located on lens carrier 2 are provided with buckle 3, the both sides of the light-emitting surface 11 of lens 1 be equipped with
3 corresponding card slots 4 are buckled, lens 1 are fixedly mounted on by buckle 3, card slot 4 on lens carrier 2, easy for installation and stability
Height, in use, lens carrier 2 is fixed in infrared lamp bead or circuit board, the lens 1 include going out for upper and lower concentric setting
Smooth surface 11 and plane of refraction 12, light-emitting surface 11 and plane of refraction 12 are rectangular configuration, and the area of light-emitting surface 11 is more than plane of refraction 12
Area, the surface treatment of light-emitting surface 11 is shiny surface or frosting, and color is transparent, blue, purple or black etc., lens branch
The bottom surface of frame 2 is equipped with the light well 5 suitable for plane of refraction 12, the total reflection that the periphery of plane of refraction 12 is obliquely installed upwards by four
Face 13 is connect with light-emitting surface 11, and in the present embodiment, the length, width and height of light-emitting surface 11 separately design as 16mm, 11.5mm, 2mm, lens 1
Height is designed as 8.3mm, and the aperture design of light well 5 is 3.5mm*3.5mm, and by adjusting the gradient of fully reflecting surface 13,
It is 16 so that light is formed by rectangular light spot Aspect Ratio after lens 1:9, hot spot beam angle can be adjusted arbitrarily, to suitable
It is 16 with CCD in the market:9 arbitrary video camera.
In the present embodiment, the length, width and height of lens carrier 2 are respectively 18mm, 13.5mm, 9mm.
In the present embodiment, the material of lens 1 is PC or PMMA, and the material of lens carrier 2 is PC or ABS.
In another embodiment, as shown in figure 11, positioning column 6 there are three being arranged in the bottom surface of lens carrier 2, this three
A positioning column 6 is distributed at 120 degree of sections, and lens carrier 2 is located in by positioning column 6 in infrared lamp bead or circuit board.
After picture pick-up device is by the utility model of arranging in pairs or groups, circular light spot is compressed into 16:9 rectangular light spot, video camera are seen
The light surveyed other than range has been compressed within observation scope, to improve the light utilization of equipment, so, for
16:For 9 video camera, collocation the utility model can significantly improve light utilization, and energy-efficient purpose may be implemented.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (9)
1. a kind of light filling lens of infrared night video camera, it is characterised in that：Lens carrier including lens and with accommodating cavity,
The lens carrier is equipped with upper end opening, and the lens are installed on the accommodating cavity by the upper end opening of the lens carrier
Interior, the lens carrier is fixed on infrared lamp bead or circuit board, the lens include upper and lower concentric setting light-emitting surface and
Plane of refraction, the light-emitting surface and plane of refraction are rectangular configuration, and the area of the light-emitting surface is more than the area of plane of refraction, described
The bottom surface of lens carrier is equipped with the light well suitable for the plane of refraction, and the periphery of the plane of refraction is obliquely installed upwards by four
Fully reflecting surface connect with light-emitting surface, make light be formed by after lens rectangular light spot Aspect Ratio be 16:9.
2. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The light-emitting surface
Length, width and height are respectively 16mm, 11.5mm, 2mm, and the height of the lens is 8.3mm, and the aperture of the light well is 3.5mm*
3.5mm。
3. a kind of light filling lens of infrared night video camera according to claim 2, it is characterised in that：The lens carrier
Length, width and height be respectively 18mm, 13.5mm, 9mm.
4. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The lens carrier
The upper both sides positioned at opening are provided with buckle, and the both sides of the light-emitting surface are equipped with card slot corresponding with the buckle, described
Mirror is fixedly mounted on by the buckle, card slot on lens carrier.
5. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The lens carrier
Bottom surface setting there are three positioning column, three positioning columns are distributed at 120 degree of sections, and the lens carrier passes through the positioning
Column is located on infrared lamp bead or circuit board.
6. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The light-emitting surface
Surface treatment is shiny surface or frosting.
7. a kind of light filling lens of infrared night video camera according to claim 6, it is characterised in that：The light-emitting surface
Color is transparent, blue, purple or black.
8. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The material of the lens
Material is PC or PMMA.
9. a kind of light filling lens of infrared night video camera according to claim 1, it is characterised in that：The lens carrier
Material be PC or ABS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880104.1U CN207689735U (en) | 2017-12-28 | 2017-12-28 | A kind of light filling lens of infrared night video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880104.1U CN207689735U (en) | 2017-12-28 | 2017-12-28 | A kind of light filling lens of infrared night video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689735U true CN207689735U (en) | 2018-08-03 |
Family
ID=62993265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721880104.1U Active CN207689735U (en) | 2017-12-28 | 2017-12-28 | A kind of light filling lens of infrared night video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103525A1 (en) * | 2018-11-21 | 2020-05-28 | 杭州海康威视数字技术股份有限公司 | Surveillance camera supporting hybrid light supplementing |
-
2017
- 2017-12-28 CN CN201721880104.1U patent/CN207689735U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103525A1 (en) * | 2018-11-21 | 2020-05-28 | 杭州海康威视数字技术股份有限公司 | Surveillance camera supporting hybrid light supplementing |
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