The footlights are small in size, low in power consumption and long in service life. They are sturdy, durable, low in power consumption, long in service life, easy to install, unique and elegant in shape, anti leakage and waterproof;
1. The LED light source has a long service life. There is no accident and it is almost unnecessary to change the bulb. It can be used for several years after construction.
2. Low power consumption, no need to pay high electricity charges for lighting and beautification.
Step Light,Step Lamp,Stair Light,Wall Corner Light JINGYING , https://www.jingyinglight.com
(I) Principle of Infrared Light Emitting Diode (LED) Infrared light emitter consists of an infrared light emitting diode (LED) matrix. The infrared light emitting diode is made of a material with high infrared radiation efficiency and made of a PN junction, and a forward bias is applied to inject the current into the PN junction to excite the infrared light. The spectral power distribution is center wavelength 830--950 nm, and the half-peak bandwidth is about 40 nm, as shown in Figure 1 (the spectral distribution of infrared light emitting diodes at 850 nm and 940 nm). It is a narrowband distribution, which is the range that can be felt by ordinary CCD black-and-white cameras. Its greatest advantage is that it can be completely free of red storms (using infrared tubes at 940 to 950 nm wavelength) or only weak red (using infrared tubes at 850 nm wavelength); it also has a long lifetime.
(II) Light-controlled soft-switching circuit circuit This infrared lamp adopts a light-controlled soft-switching circuit to reduce the impact of its working state transition and extend the service life of infrared lamps.
(C) constant voltage constant current circuit to compensate infrared light infrared radiation power difference between winter and summer, the infrared light uses a constant voltage constant current circuit, so that the stability of the infrared light emitting diode power, thereby increasing the use of infrared light, Extended service life.
(IV) Selection and Use of Infrared Lamps The most important issue in the selection of infrared lamps is the suitability of infrared lamps and cameras, lenses, protective covers, and power supplies. Some people bought the camera, lens, protective cover, power supply, and even considered the purchase of infrared light after installation. This is not correct. All equipment should be taken into consideration when designing the project. Think of it as an infrared low-light night. Designed as a monitoring system project.
Infrared lamp use matters needing attention
1. Infrared light red storm: red storm refers to the infrared light visible red light, no red storm and vice versa.
2. Explosion-proof infrared lamp: It is made of high-strength material and made of infrared light that can protect against general external damage.
3. The effect of infrared lamp wavelength on infrared lamps: The longer the wavelength, the smaller the red storm, and even the red storm can be achieved. However, the lower the infrared light efficiency, the higher the infrared lamp heat.
4. Use infrared light: The most important is the complete set, with the camera, lens, protective cover, power supply and other sets of properties.
5. Selection of cameras: Can not be shared with ordinary color cameras, it can not feel infrared lights, should choose black and white cameras or special color cameras (automatic sensing infrared, color black and white automatic conversion). The camera has an automatic electronic shutter function, AGC automatic gain control function, the lens has an automatic aperture, to adapt to large changes in day and night illumination, infrared lamps have strict voltage requirements should try to use AC 24V or DC one-to-one regulated power supply, outdoor The light is more complicated, so the effect of using a larger irradiation distance than indoor is better.
6. In addition to supporting features, consider the following factors:
a) When using IR lamps, there is room for selecting the IR lamp irradiation distance.
b) The shield also affects the effect of the infrared lamp. In the infrared light transmission process, through different media, the transmittance and reflectance are also different. Different window glasses, especially automatic defrosting coated glass, also have different attenuation of infrared light. In addition to this, it is also possible to reflect infrared light, resulting in a white or aperture image.
7. Other small common sense of infrared lamps: With the rapid development of infrared night vision systems, infrared lamp production and supply manufacturers will increase, but red light products are not as easy as some people think, in technology, testing equipment and other aspects The conditions are also different. We hope that users will make more comparisons and choose carefully. Users should first read the instruction manual carefully when using the infrared light, especially the precautions for ensuring personal equipment safety. Check whether the supporting aspects mentioned in the previous section meet the requirements. Whether the influencing factors that should be taken into consideration should be taken into consideration, if not meet the requirements, the equipment used can be adjusted in time. The user should not arbitrarily increase the supply voltage because the design of the infrared lamp takes into account both its full irradiance and its safety and reliability. Raising the power supply voltage may cause the infrared lamp to be burned, and it is even more desirable not to tamper with the infrared lamp. If this is done, the manufacturer may no longer be responsible for maintenance. If there is a problem with the infrared lamp, contact the manufacturer or supplier.
Infrared lamp application principle and precautions
Infrared lamp application principle