CCTV camera with saturating infrared light and saturating visible ray eyeglassTechnical field
The present invention relates to video camera lens structure technical field, more particularly, to the CCTV camera structure of saturating infrared light.
Background technology
The lens assembly of existing infrared monitoring camera generally includes camera lens 101, infrared LED lamp 202 and translucent cover 93(as shown in Figure 5).If being not provided with light shielding device between camera lens 101 and infrared LED lamp 202, when 202 points of infrared LEDWhen bright, the infrared light that infrared LED lamp 202 sends can be reflexed in camera lens 101 by translucent cover 93, cause what camera lens 101 shotPicture turns white, not fogging Chu.
In order to solve this problem, it is mainly to arrange between camera lens 101 and infrared LED lamp 202 at present by the way ofLighttight light shielding device 95, enters camera lens 101 (such as Fig. 6 institutes to reach the infrared light reflection for preventing infrared LED lamp 202 from sendingShow).
It will now be understood that the saturating infrared ray acrylic eyeglass of black is the black or peony material with acrylic as base material.ThisThe characteristic for planting material is to give black vision (400-700nm visible light transmissivities are less than 1%) in visible-range, but energyThrough the near infrared region of 800-1600nm wavelengths above, infrared transmittivity is required according to component thickness, service band and color,Can be from 80% to 93%.It is widely used in the communication component with infrared breathability, is helping by infrared signalMeanwhile, because visual black, easy internal structure can be covered.It is largely used to mobile phone, computer, household electrical appliances, automobile, redThe infrared signal transmission of outer touch screen etc. or infrared window.
The saturating infrared acrylic optical filter of black is the black or peony material with acrylic as base material.The spy of this materialProperty be to give black vision (400-700nm visible light transmissivities be less than 1%) in visible-range, but 720- can be passed throughThe near infrared region of 1100nm wavelengths above, infrared transmittivity is according to the requirement of component thickness, service band and color, Ke Yicong80% to 93%.
It is widely used in the communication component with infrared breathability, while helping by infrared signal, because visionOn black, easy internal structure can be covered.It is largely used to mobile phone, computer, household electrical appliances, automobile, infrared touch panel etc.Infrared signal transmission or infrared window.
The saturating infrared fileter of acrylic, or referred to as plastics optical filter can customize different shape maximum journey according to customer requirementMeet customer requirement on degree, due to the product compared with glass with easy-formation, low cost the characteristics of, take in very large rangeFor glass filter, infrared signal transmission or the infrared window of computer, household electrical appliances, automobile, infrared touch panel etc. is widely used in.
Can mainly there are two kinds through infrared material：1. glass for infrared rays：Through infrared cut of light or absorb visible ray andUltraviolet light can be infrared coloured glass or plate infrared film to manufacture by glass.2. saturating infrared plastics：By PC, PMMAMaterial is made, and appearance color is presented black.The saturating infrared plastics of this kind of material can effectively end visible ray transmitted infrared light.Its stable optical performance, compared with glass for infrared rays material, feature is low cost, not broken.
However, the CCTV camera needed for market requires it is whole day uninterrupted monitoring in 24 hours, therefore, monitored scapeSubstance environment there is also the alternating cyclical process on night scene, daytime, therefore, it is infrared that the translucent cover of CCTV camera should solve transmissionLight, while also visible light permeable function, while and the effect of the optical element in hiding translucent cover can be reached, how sameSolving above-mentioned technical problem on eyeglass becomes urgent problem.
Utility model content
This utility model solve technical problem be, there is provided it is a kind of to realize the area before infrared lamp on same eyeglassDomain transmits infrared ray, transmits visible ray and can reach the effect of hiding eyeglass interior element before visible ray light sensation detector regionCCTV camera.
The utility model proposes technical scheme it is as follows：
CCTV camera with saturating infrared light and saturating visible ray eyeglass, the video camera include fore shell, camera lens, infraredLight lamp, an optical inductor, the camera lens are located in fore shell, and the infrared lamp, optical inductor are separately fixed at camera lens both sides, shouldOptical inductor front end sets a photodetector head, strong and weak to detect visible light ray, it is characterized in that：
Transparent dual-purpose eyeglass, the eyeglass are also set up before the infrared lamp of the video camera front end and the photodetector headBefore infrared lamp, the region local of transmitted infrared light thickeies, to reach what is uniformly can hidden to external diffusion infrared light againEffect；And
Region of the eyeglass before the strong and weak photodetector head of detection visible light ray is thinning simultaneously, saturating in order to visible rayEnter to carry out detecting while and reaching the effect of hiding photodetector head element；
The eyeglass is manufactured by following methods：By 6：4 ratio takes the saturating infrared plastics and transparent plastic of black as raw material；Both the above raw material is carried out taking out grain process, is then fully mixed；Above-mentioned raw materials are put into according to the mould designed by aforementioned claimHot briquetting in tool；Then polishing, obtains the video camera eyeglass.
The local thicken position of described transmitted infrared light is located at the eyeglass border circular areas before infrared lamp.
The thickness that described transmitted infrared light region thickeies is that normal segments increase by 35%, the thinning journey in region of saturating visible raySpend for normal segments thinning 40%.
This utility model obtain preferable technique effect be：The CCTV camera eyeglass invented is realized red on same eyeglassRegion before outer smooth lamp more equably transmit infrared ray, while before visible ray light sensation detector region transmit visible ray andThe effect in a balanced way of hiding eyeglass interior element can be reached.
Brief Description Of Drawings：
Fig. 1 has the overall schematic of the CCTV camera of infrared light and saturating visible ray eyeglass for this utility model；
Fig. 2 has the CCTV camera sectional view of infrared light and saturating visible ray eyeglass for this utility model；
Fig. 3 is the eyeglass partial schematic diagram of video camera of the present utility model；
Fig. 4 is video camera eyeglass of the present utility model and infrared lamp, the partial schematic diagram of photodetector head.
The infrared monitoring camera technical scheme schematic diagram of Fig. 5, Fig. 6 for prior art.
1- eyeglasses in figure, 2- infrared lamps, 3- optical inductors, 4- fore shells, the region local of 11- transmitted infrared lights thicken,
Region before 12- photodetector heads is thinning.
93- translucent covers, 95- light shielding devices, 101- camera lenses, 202- infrared LED lamps.
Specific embodiment：
Below by specific embodiment, the monitoring that this utility model has infrared light and saturating visible ray eyeglass is described in detailThe technical scheme embodiment of video camera：
With reference to Fig. 1, Fig. 2, the present invention is specially：Video camera with saturating infrared light and saturating visible ray eyeglass, the shootingMachine includes fore shell 4, camera lens, an infrared lamp 2, an optical inductor 3, and the camera lens is located in fore shell 4, the infrared lamp 2, lightInduction apparatuss 3 are separately fixed at camera lens both sides, and 3 front end of optical inductor sets a photodetector head, strong to detect visible light rayIt is weak, to start infrared light detecting lamp in good time, to reach timing monitoring, wherein：
As shown in Figure 3 and Figure 4, also set up before the infrared lamp 2 of the video camera front end and the photodetector head transparentDual-purpose eyeglass 1, the transmitted infrared light before infrared lamp 2 of eyeglass 1 region local thicken 11, so as to reach can uniformly toThe effect that external diffusion infrared light can be hidden again；And
While region thinning 12 of the eyeglass 1 before the strong and weak photodetector head of detection visible light ray, in order to visibleLight is penetrated to be carried out detecting while and reaching the effect of hiding photodetector head element.
The eyeglass is manufactured by following methods：By 6：4 ratio takes the saturating infrared plastics and transparent plastic of black as raw material；Both the above raw material is carried out taking out grain process, is then fully mixed；Above-mentioned raw materials are put into according to the mould designed by aforementioned claimHot briquetting in tool；Then polishing, obtains the video camera eyeglass.
This eyeglass is opened and will excessively demonstrate,prove improvement and just can reach " can thoroughly outward can thoroughly can light can reach again it is hiddenNot element effect is seen in Tibetan " to be thickeied outer optical position thoroughly to reach in design aspect and dissipates outer light effect, thicken and reach againHide see not element effect. visit can the thin raising of light (photosensitive probe CDS) position piece can light penetrate effect.By not eyeglass black, impact can light entrance. and in terms of electronics cooperation, excessive secondary special integer is reducedValue coordinates. in terms of material, former outer PC materials black thoroughly (impermeable can light). and repeatedly with outer PC materials thoroughlyWith transparent PC ratios, a technology of taking out, control material mixing ratio to 6 is introduced:4. balance can light penetrate it is thoroughly outer with blackLight and hiding element effect.
The local thicken position of described transmitted infrared light is located at the eyeglass border circular areas before infrared lamp.
The thickness that described transmitted infrared light region thickeies is that normal segments increase by 35%, the thinning journey in region of saturating visible raySpend for normal segments thinning 40%.