LED Infrared lamp All uses the Taiwan Crystal Element package, the quality has the safeguard, the trust degree is higher. LED infrared lamp is currently divided into 60 degrees and 120 degrees angle two series, source Lei main band: 850nmLED infrared light. LED infrared lamp reliability high, peak wavelength λp=850nm, pin spacing 14mm, low voltage, the use of freedom, convenience, product itself in line with RoHS certification standards.
What is the principle of LED infrared light?
(i) Infrared light-emitting diode (LED) principle led infrared light emitting body is composed of infrared light-emitting diode (LED) matrix. The infrared light-emitting diode is made of PN Junction by the material with high infrared radiation efficiency, IR Lamp LED and the positive bias pressure is injected into the PN Junction to excite the infrared light. The spectral power distribution is the central wavelength $number-950nm, the half peak bandwidth is about 40nm, as shown in Figure 1 (850nm, 940nm infrared light-emitting diode spectrum). IR Lamp LED It is a narrow-band distribution, which can be felt by the ordinary CCD black and white camera. Its greatest advantage is that it can be completely free of red, (using a 940~950nm wavelength infrared tube) or only a faint red storm (850nm wavelength infrared tube), but also has a long life characteristics.
(ii) light-controlled soft switching circuit the LED infrared lamp adopts a light controlled soft switching circuit to reduce the impact of its working state conversion and prolong the service life of the LED infrared lamp.
(three) constant-current voltage regulator to compensate for the difference of light radiation power of LED infrared lamp in winter and Xia Dihong, the LED infrared lamp adopts a constant current circuit, IR Lamp LED which makes the infrared light-emitting diode light power stable, thus enhances the use of LED infrared lamp and prolongs the service life.
(d) led infrared lamp selection and the use of LED infrared lamp selection The most important problem is led infrared light and camera, lens, protective cover, power supply, IR Lamp LED such as complete sets. Some people bought the surveillance cameras, lenses, shields, power, and even after the installation to consider the purchase of LED infrared lights, this is not correct, should be in the design of all equipment considerations, IR Lamp LED it is considered an infrared low illumination night vision monitoring systems engineering to carry out the design.
Precautions for LED infrared lights
1. LED infrared light Red Storm:
Red Storm refers to the LED infrared lamp has visible red light, no Red storm and vice versa.
2. Explosion-proof LED infrared light:
The use of high-strength materials to protect the general external damage of the LED infrared lamp.
3. LED infrared lamp wavelength to LED infrared lamp influence:
The longer the wavelength, the smaller the red bursts, IR Lamp LED even can achieve all no red storm, but the lower the efficiency of infrared light, LED infrared lamp fever higher.
4. The use of LED infrared lamp:
The most important is the complete set, with the camera, lens, shield, power supply, etc.
5. Camera Selection:
Can not be used with ordinary color camera, it can not feel the LED infrared light, should choose black and white camera or special color camera (automatic induction infrared, color black and white automatic conversion). Camera has automatic electronic shutter function, AGC automatic gain control function, IR Lamp LED the lens has the automatic aperture, adapts the day and night illumination very big change, the LED infrared lamp to the voltage has the strict requirements should try to choose the Exchange 24V or the direct current one-way power supply, IR Lamp LED outside the light is more multifarious, therefore outdoors than indoors to choose the irradiation distance bigger effect will be better.
6. In addition to the complementary nature, the following factors must be taken into account:
A) when the LED infrared lamp, the selection of LED infrared lamp irradiation distance.
b The shield to the LED infrared lamp effect also has the influence, the infrared light in the transmission process, through the different medium, the transmission rate and the reflectivity are also different. Different window glass, especially the automatic defrost coating glass, the attenuation of infrared light is also different. In addition to the possibility of reflection of infra-red, resulting in a white or aperture image.
7. LED infrared light Other small common sense:
With the rapid development of infrared night vision system, LED infrared lamp production and supply manufacturers will also increase, but the red light products are not as easy as some people imagine, in the technology, testing equipment and other aspects of the condition is also different, IR Lamp LED I hope users more than more, careful choice. The user uses the LED infrared lamp first to carefully read the instruction manual, specially in order to guarantee the personal equipment safety matters needing attention. Check whether the supporting aspects described above meet the requirements, should take into account the impact factors are considered, if not meet the requirements, IR Lamp LED can adjust the equipment used in a timely manner. The user should not raise the power supply voltage without authorization, because the LED infrared lamp is designed, taking into account the full exertion of its irradiance and its safety and reliability. Improve the supply voltage, may make the LED infrared lamp burned, should not be arbitrarily chaigai led infrared lamp. If this is done, the manufacturer may no longer be responsible for repairs. If there is a problem with the LED IR lamp, contact the manufacturer or supplier.
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