CN204613559U - Novel hidden infrared light supply - Google Patents
Novel hidden infrared light supply Download PDFInfo
- Publication number
- CN204613559U CN204613559U CN201520199591.XU CN201520199591U CN204613559U CN 204613559 U CN204613559 U CN 204613559U CN 201520199591 U CN201520199591 U CN 201520199591U CN 204613559 U CN204613559 U CN 204613559U
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- China
- Prior art keywords
- infrared light
- lamp pearl
- nanometer
- light supply
- heat abstractor
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Abstract
The utility model discloses a kind of novel hidden infrared light supply, the power supply, heat abstractor and the shell that comprise the LED lamp pearl of 850nm, are connected with lamp pearl, lamp pearl is connected by a metal substrate with heat abstractor, heat abstractor is fixedly fitted in outer casing bottom, glass window is provided with before shell, lamp pearl light-emitting area is provided with long-pass optical filter, can the light of wavelength-filtered 700 nanometer to 800 nanometer, and the light of efficient output wavelength 830 nanometer to 870 nanometer.The utility model can the effective visible ruddiness of filtering human eye, eliminates red sudden and violent phenomenon, can efficiently export infrared light invisible to the human eye again, greatly improve the disguise of infrared light supply.
Description
Technical field
The utility model relates to infrared light supply field, particularly a kind of for disguised novel hidden infrared light supplies requiring high place such as security protections.
Background technology
At present, monitoring camera is widely used in safety-security area, is used for carrying out image acquisition to target area.At night because illumination is not enough, often need to carry out light filling illumination with infrared light supply, common infrared light supply has the LED lamp of 940nm and the LED lamp of 850nm.Wherein the infrared LED lamp of 940nm is without red sudden and violent phenomenon, and in using, infrared lamp surface is without any light, more hidden.But due to the response characteristic of current infrared inductor itself, with a video camera, in the sensitivity of 850nm wavelength than good to 10 times in the sensitivity of 940nm wavelength, so the infrared lamp of 850nm has higher efficiency, be the first-selection of infrared light supply on market.
But the LED lamp of 850nm is owing to there being red sudden and violent phenomenon, in using, close-ups, infrared lamp can send bolarious light, and its disguise is poor, is easily found by people and takes the way destroyed or hide to make it to lose efficacy.How to eliminate the red sudden and violent phenomenon of the led infrared light supply of 850nm thus improve its disguise and become urgent problem.
Summary of the invention
The purpose of this utility model is to provide a kind of novel hidden infrared light supply, takes the method for installing optical filter to filter the visible ruddiness of human eye, retains the sightless infrared light of human eye, thus realize hiding function.
Concrete scheme of the present utility model is:
A kind of novel hidden infrared light supply, the power supply, heat abstractor and the shell that comprise the LED lamp pearl of 850nm, are connected with lamp pearl, lamp pearl is connected by a metal substrate with heat abstractor, heat abstractor is fixedly fitted in outer casing bottom, glass window is provided with before shell, the light that glass window allows LED lamp pearl to send passes through, and it is characterized in that: the light-emitting area of described LED lamp pearl is provided with long-pass optical filter;
Further preferably, described long-pass optical filter on optical glass, is coated with multilayer film form;
Further preferably, described multilayer film are formed at optical glass surface alternating deposit by two kinds of different oxide material silicon dioxide and titania;
Further preferably, described multilayer film are 66 layers;
Further preferably, the transmitance of described long-pass optical filter to the light of wavelength 700nm to 800nm be less than or equal to 100,000/, 90% is greater than to the transmitance of the light of wavelength coverage 830nm to 870nm.
The beneficial effects of the utility model are:
1, the utility model adopts the method for installing long-pass optical filter, filters, eliminate red sudden and violent phenomenon, greatly improve disguise the visible ruddiness of human eye;
2, the utility model adopts the method for installing long-pass optical filter, to the sightless infrared light of human eye carry out efficiently through, ensure that effective work of infrared light supply;
3, method for making of the present utility model is simple, and routine monitoring infrared light supply installs optical filter, and compared with whole CCTV camera, cost increases seldom, practical.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of novel hidden infrared light supply;
Fig. 2 is the transmitance waveform schematic diagram of long-pass optical filter;
Fig. 3 is the composition schematic diagram of long-pass optical filter.
Embodiment
Below in conjunction with drawings and the embodiments, the utility model is described in further detail.As shown in Figure 1, a kind of novel hidden infrared light supply, comprise the LED lamp pearl (1) of 850nm, the power supply be connected with lamp pearl (1), heat abstractor (3) and shell (4), lamp pearl (1) is connected by a metal substrate (2) with heat abstractor (3), heat abstractor (3) is fixedly fitted in shell (4) bottom, shell (4) is provided with glass window (5) above, the light that glass window (5) allows lamp pearl (1) to send passes through, the light-emitting area of lamp pearl (1) is provided with long-pass optical filter (6), long-pass optical filter (6) has spectral characteristic as shown in Figure 2, the visible ruddiness of human eye can be filtered, retain the sightless infrared light of human eye, thus reach the red sudden and violent effect of elimination.
The wavelength coverage of the light seen that human eye can be seen is 380nm to 780nm, belongs to visible ray; The light people that wavelength is greater than 780nm can not see, and belongs to infrared light.In the light that the LED lamp pearl of 850nm sends, except the infrared light near 850nm, also have the visible ruddiness of human eye of 700nm to 800nm, the visible ruddiness of this part human eye causes red sudden and violent phenomenon just.As shown in Figure 2, in the transmitance waveform of long-pass optical filter (6), the transmitance of the light of 700nm-800nm wavelength is less than or equal to 100,000/, make long-pass optical filter (6) effectively can stop the human eye visible red that LED lamp pearl (1) sends; The wavelength transmitance of 830nm-870nm is greater than 90%, ensures that long wave pass filter (6) efficiently can export the main effectively operation wavelength of LED lamp pearl (1).
As shown in Figure 3, long-pass optical filter (6) adopts physical gas-phase deposite method to be coated with multilayer film to form on optical glass (7) surface, multilayer film are formed at optical glass (7) surperficial alternating deposit by the oxide material silicon dioxide (9) of two kinds of different-thickness and titania (8), comprises 66 layer films altogether.
Claims (5)
1. a novel hidden infrared light supply, the power supply, heat abstractor and the shell that comprise the LED lamp pearl of 850nm, are connected with lamp pearl, lamp pearl is connected by a metal substrate with heat abstractor, heat abstractor is fixedly fitted in outer casing bottom, be provided with glass window before shell, it is characterized in that: the light-emitting area of described LED lamp pearl is provided with long-pass optical filter.
2. according to novel hidden infrared light supply according to claim 1, it is characterized in that: described long-pass optical filter on optical glass, is coated with multilayer film form.
3. according to novel hidden infrared light supply according to claim 1, it is characterized in that: described multilayer film are formed at optical glass surface alternating deposit by two kinds of different oxide material silicon dioxide and titania.
4. according to novel hidden infrared light supply according to claim 1, it is characterized in that: described multilayer film are 66 layers.
5. according to novel hidden infrared light supply according to claim 1, it is characterized in that: described long-pass optical filter to wavelength be the transmitance of the light of 700 nanometer to 800 nanometers be less than or equal to 100,000/, 90% is greater than to the transmitance of the light of wavelength 830 nanometer to 870 nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199591.XU CN204613559U (en) | 2015-07-20 | 2015-07-20 | Novel hidden infrared light supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199591.XU CN204613559U (en) | 2015-07-20 | 2015-07-20 | Novel hidden infrared light supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613559U true CN204613559U (en) | 2015-09-02 |
Family
ID=53966102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199591.XU Expired - Fee Related CN204613559U (en) | 2015-07-20 | 2015-07-20 | Novel hidden infrared light supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204613559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721785A (en) * | 2016-03-23 | 2016-06-29 | 浙江大学 | Camera-shooting-preventing interference equipment |
| CN107589088A (en) * | 2017-09-14 | 2018-01-16 | 深圳市美思先端电子有限公司 | A kind of infrared filament light sources and its preparation technology for NDIR infrared gas analysis |
-
2015
- 2015-07-20 CN CN201520199591.XU patent/CN204613559U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721785A (en) * | 2016-03-23 | 2016-06-29 | 浙江大学 | Camera-shooting-preventing interference equipment |
| CN107589088A (en) * | 2017-09-14 | 2018-01-16 | 深圳市美思先端电子有限公司 | A kind of infrared filament light sources and its preparation technology for NDIR infrared gas analysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20200720 |