CN202719447U - Infrared light emitting diode (LED) lamp device - Google Patents
Infrared light emitting diode (LED) lamp device Download PDFInfo
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- CN202719447U CN202719447U CN2012204181426U CN201220418142U CN202719447U CN 202719447 U CN202719447 U CN 202719447U CN 2012204181426 U CN2012204181426 U CN 2012204181426U CN 201220418142 U CN201220418142 U CN 201220418142U CN 202719447 U CN202719447 U CN 202719447U
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- infrared led
- light
- led
- lamp device
- lens
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Abstract
The utility model discloses an infrared light emitting diode (LED) lamp device which comprises a single infrared LED serving as a lighting light source, a light evening device enabling light beams emitted by the single infrared LED to evenly irradiate, and a lens used for colleting light rays and emitting the light rays. The single infrared LED, the light evening device and the lens are arranged at the same horizontal line, and the light evening device is arranged between the single infrared LED and the lens. According to the infrared LED lamp device, the light evening device is arranged between the single infrared LED and the lens, on the premise of low cost, uneven phenomena of a packaging gold wire of the infrared LED and LED chip gaps on a light projection plane in small-angle lighting are completely eliminated, supplementary lighting is even, and night vision image formation effects are good.
Description
Technical field
The utility model relates to the lighting fixture field, relates in particular to a kind of infrared LED lamp device for the night vision light filling.
Background technology
It is very general that security protection industry employing infrared LED lamp when night monitoring carries out light filling, farther for the light filling distance in recent years, generally attempts in the industry adopting single powerful infrared LED to carry out light filling.General Infrared High-Power LED refers to the light emitting diode that has large rated operational current, and electrical power reaches 1 watt to tens of watts, and operating current does not wait from tens milliamperes to some amperes.
But, described single infrared LED is divided into single single-chip infrared LED and single multi-chip infrared LED, as depicted in figs. 1 and 2, it includes drain pan 10 and infrared LED chip 20, described infrared LED chip 20 is fixed on the described drain pan 10 by heat-conducting glue, is welded with the encapsulation gold thread 30 for conduction on the described infrared LED chip 20.And when using single infrared LED (comprising single single-chip infrared LED and single multi-chip infrared LED) to carry out the low-angle illumination, because the encapsulation gold thread of single infrared LED has blocked the LED beam projecting, perhaps led chip gap itself is not luminous, cause illumination unevenness on the light projection surface, have a strong impact on illuminating effect.Its concrete principle is, when single infrared LED carries out the low-angle illumination, the led chip surface generally becomes conjugate relation with the light projection surface, at this moment, according to imaging theory, the details on led chip surface will project on the light projection surface, its schematic diagram as shown in Figure 3, each luminous point is responsible for the illumination of certain angle on the light projection surface on the infrared LED chip, if the light beam that some point sends on the infrared LED chip is blocked by gold thread, the disappearance that will inevitably cause certain shooting angle light beam is in the phenomenon of light projection surface generation illumination unevenness.
And under the background of the high Qinghua of current monitoring camera technology, this kind defective has a strong impact on the imaging effect at night.
Therefore, prior art has yet to be improved and developed.
The utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of LED infrared lamp device, described LED infrared lamp can be eliminated the defective of single infrared LED when low-angle throws light on, improve the light filling effect of full angle, be intended to solve the problem that existing infrared LED illumination unevenness when low-angle throws light on affects the nighttime imaging effect.
The technical solution of the utility model is as follows:
A kind of infrared LED lamp device wherein, comprises single infrared LED as lighting source, is used for making the dodging device that light beam that single infrared LED sends can uniform irradiation and is used for collecting the camera lens of light and outgoing; Described single infrared LED, dodging device and camera lens setting in the same horizontal line, described dodging device is arranged between single infrared LED and the camera lens.
Described infrared LED lamp device, wherein, described single infrared LED is single Infrared High-Power LED.
Described infrared LED lamp device, wherein, described single infrared LED is single single-chip infrared LED or single multi-chip infrared LED.
Described infrared LED lamp device, wherein, described camera lens is single eyeglass or many lens set.
Described infrared LED lamp device, wherein, described infrared LED lamp device also comprises a fixed pedestal, is provided with on the described fixed pedestal for the LED holder of fixing described single infrared LED with for the lens fixing base of fixing described camera lens; Described single infrared LED is fixed on the described LED holder, and described dodging device and camera lens are arranged on the described lens fixing base.
Beneficial effect: infrared LED lamp device provided by the utility model, described dodging device is set between single infrared LED and camera lens, can be under lower cost, thoroughly eliminated encapsulation gold thread and the led chip gap non-uniform phenomenon on the light projection surface when low-angle throws light on of infrared LED, so that light filling is more even, make the night vision imaging effect better.
Description of drawings
Fig. 1 is the structural representation of single single-chip infrared LED.
Fig. 2 is the structural representation of single multi-chip infrared LED.
Light path principle figure when Fig. 3 is single infrared LED low-angle illumination.
Fig. 4 is the basic structure schematic diagram of infrared LED lamp device of the present utility model.
Fig. 5 is the concrete structure schematic diagram of infrared LED lamp device of the present utility model.
The specific embodiment
The utility model provides a kind of infrared LED lamp device, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below the utility model further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
A kind of infrared LED lamp device provided by the utility model as shown in Figure 4, comprises single infrared LED 1 as lighting source, is used for making the dodging device 2 that light beam that single infrared LED 1 sends can uniform irradiation and is used for collecting the camera lens 3 of light and outgoing; Described single infrared LED 1, dodging device 2 and camera lens 3 arrange in the same horizontal line, and described dodging device 2 is arranged between single infrared LED 1 and the camera lens 3.
Experimental principle of the present utility model as shown in Figure 4,1 pair of dodging device 2 of single infrared LED carries out first Uniform Illumination, the light beam that is sent by 2 pairs of single infrared LEDs 1 of the dodging device of Uniform Illumination is again modulated and is collected outgoing by camera lens 3, because dodging device 2 is by Uniform Illumination, so the light-emitting area of dodging device 2 is uniform area sources, by optical principle as can be known, no matter be large low-angle illumination, the light projection surface all is uniform.Therefore, described dodging device 2 is set between single infrared LED 1 and camera lens 3, can eliminates LED encapsulation gold thread and led chip gap to the impact of illuminating effect.
Wherein, described single infrared LED 1 is lighting source, and described single infrared LED 1 can be single Infrared High-Power LED.Great power LED refers to have the light emitting diode of large rated operational current.Common LED power is generally 0.05W, operating current is 20mA, and great power LED can reach 1W, 2W even tens of watts, and operating current can be tens milliamperes not to be waited to the hundreds of milliampere.Described single infrared LED can be single single-chip infrared LED or single multi-chip infrared LED.Described dodging device 2 can be light integrators, has the device of optical integration effect such as diffuse scattering plate (frosted glass), integration lens (fly's-eye lens) etc.Described camera lens 3 is used for collecting light and outgoing, can be single eyeglass or many lens set.
Particularly, described infrared LED lamp device also comprises the LED holder 5 for fixing described single infrared LED 1, the fixed pedestal 4 that is used for fixing the lens fixing base 6 of described camera lens 3 and is used for fixing described LED holder 5 and lens fixing base 6 as shown in Figure 5; Described LED holder 5 and lens fixing base 6 are arranged on the described fixed pedestal 4; Described single infrared LED 1 is fixed on the described LED holder 5, and described dodging device 2 and camera lens 3 are arranged on the described lens fixing base 6.
Adopt infrared LED lamp device provided by the utility model, can be under lower cost, thoroughly eliminated encapsulation gold thread and the led chip gap non-uniform phenomenon on the light projection surface when low-angle throws light on of infrared LED, so that light filling is more even, made the night vision imaging effect better.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (7)
1. an infrared LED lamp device is characterized in that, comprises single infrared LED as lighting source, is used for making the dodging device that light beam that single infrared LED sends can uniform irradiation and is used for collecting the camera lens of light and outgoing; Described single infrared LED, dodging device and camera lens setting in the same horizontal line, described dodging device is arranged between single infrared LED and the camera lens.
2. infrared LED lamp device according to claim 1 is characterized in that, described single infrared LED is single Infrared High-Power LED.
3. infrared LED lamp device according to claim 1 is characterized in that, described single infrared LED is single single-chip infrared LED or single multi-chip infrared LED.
4. infrared LED lamp device according to claim 1 is characterized in that, described dodging device is light integrators.
5. infrared LED lamp device according to claim 1 is characterized in that, described dodging device is diffuse scattering plate or integration lens.
6. infrared LED lamp device according to claim 1 is characterized in that, described camera lens is single eyeglass or many lens set.
7. infrared LED lamp device according to claim 1, it is characterized in that, described infrared LED lamp device also comprises a fixed pedestal, is provided with on the described fixed pedestal for the LED holder of fixing described single infrared LED with for the lens fixing base of fixing described camera lens; Described single infrared LED is fixed on the described LED holder, and described dodging device and camera lens are arranged on the described lens fixing base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204181426U CN202719447U (en) | 2012-08-22 | 2012-08-22 | Infrared light emitting diode (LED) lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204181426U CN202719447U (en) | 2012-08-22 | 2012-08-22 | Infrared light emitting diode (LED) lamp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719447U true CN202719447U (en) | 2013-02-06 |
Family
ID=47621270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204181426U Expired - Fee Related CN202719447U (en) | 2012-08-22 | 2012-08-22 | Infrared light emitting diode (LED) lamp device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719447U (en) |
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2012
- 2012-08-22 CN CN2012204181426U patent/CN202719447U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130206 Termination date: 20200822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |