L.H.Y-Dophia
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Technology-Development of the Infrared Light(CCTV Camera)
L.H.Y-Dophia posted a topic in Security Cameras
Development of the Infrared Light At the early developing of Security Industry, halogen lamp become the best choose of Infrared Products when we need Night Vision Control Camera in Surveillance Market. You will find that the size of the halogen lamp was larger than other. And power dissipation also larger than other, generally from 100w to 1000w, operating temperature up to 800℃,the product is easy to damage. Useful life of halogen lamp is about 1500 hours. You need to change it every two months. Such a short life, push people to find a better alternative light source. Under this situation, LED Infrared transmitting tube was bring in Security & Protection Industry by this superiority and was used rapidly in Security & Protection Industry. Life of LED Infrared transmitting tube could reach 6000 hours. (If properly used of the LED Infrared transmitting tube, it could reach 6000 hours in technological level. It could reach about 3000 hours for the product produced from small factory.) The life of LED Infrared transmitting tube is 4 times of the halogen lamp. The cost of LED Infrared transmitting tube is very low. Basis on difference specification and difference quality, it cost from a few cents to a few dollars. The earliest IR Camera general have 6 LED Infrared light, it cost less than RMB20. However, It is said that the price of the halogen lamp is from several hundred to several thousand. It is a few times of the LED Infrared transmitting tube. The LED Infrared transmitting tube is small in size,Φ6,Φ8 is the widely used size of the LED Infrared transmitting , it can apply to the IR Camera easily. Generally, the size of the halogen lamp isΦ10×185mm, operating temperature is up to 800℃,It could not be apply to IR Camera whatever by the size or the temperature. With the developing of the Security & Protection Industry, it could not meet the market demand by the short distance of the effect of Monitoring. Monitoring has come from indoor to outdoor, from short distance to long distance. It could reach the long distance or monitoring request under harsh environments by increase the quantity of the Infrared LED light, resulted in increasing the volume of the Infrared LED product. In this case, the distance of lighting could not reach the desired effect by increasing the quantity of the Infrared Light and the size of the products. The effect lighting distance still could not exceed the limit of 50m. LED infrared light of the electro-optical conversion efficiency is still below 20%, most of the electricity converted to heat, product heat is also growing in the case of increasing number of lamp, infrared machine temperature reached 80℃, even higher than 100 ℃, high temperature, the LED chip, camera and LED package epoxy resin are prone to accelerated aging, the infrared camera life is greatly shortened, so favored by the infrared camera users disappointed. In addition, the low threshold of LED infrared light production which opened a rich fields for the hands of the workshop. So they start to produce the IR LED Cameras with none testing equipment just two or three person in a small room.Driven by the profit maximization, quality has become empty talk. The cheap products produced by Hands of the workshop and impacted the interest of the formal Infrared Cameras Manufacturers. The formal infrared camera manufacturer market share was gradually reduced. Because of Competitive pressures, some formal infrared camera manufacturers only could reduce the costs, leading to the decline of the overall quality of the products. The market is in the vicious competition of white - hot. For more technology support,welcome to visit our company website [link removed - please read the rules] We are the Manufacturer of CCTV Camera located in Shenzhen,China.Our Main product-CCTV Camera including IR High-speed Dome Camera,IR Vari-focal Camera,IR Array Camera,IR Waterproof Camera,IP Camera,ect. Welcome to contact me for product information by email [link removed - please read the rules] -
how to improve low-illumination camera imaging quality
L.H.Y-Dophia posted a topic in Security Cameras
how to improve low-illumination camera imaging quality Low-illumination cameras still could absorb a clear image of the camera in low illumination conditions. The Lens aperture size (F), electronic sensitivity, status of infrared switch and other conditions will affect the least illumination value of the low-illumination camera (Lux). Here, let us introduce you three technology mothed to improve the effect of the imaging of the low illumination infrared camera. Color to black technology which was often used and could used with Infrared LED light. There have two Conversion Technology, one is using the infrared optical filter and switching circuit for color to black & white conversion. Another is using electronic circuit to eliminated the color signal,do not need the infrared optical filter. To ensure the color reproduction and the clarity,most of the high-end color to black Camera general used the first switching technology. Frame accumulation (slow shutter) technology which made real-time image go bad by starting it and resulting in serious tailing phenomenon. So it only could applicable in a static place, not applicable for monitoring the occasion with faster moving target. Digital Noise Reduction Technology, we could learned that it could improve the cleanliness and clarity of the image under low illumination with much noise (Especially Start up the AGC) from the performance of the Digital Noise Reduction from some high-grade low illumination Camera. As a results to promote the effect of imaging. But a lot of the Camera still have the problem of tailing and animation flu by starting the Noise Reduction Function. From the above brief introduction, it can be summed up that to improve the effect of the image of the IR low Illumination Camera still mainly in two ways,one is to improve its performance of the CCD, another is to increase the processiong capabilities of the image of the software and hardware. For More information of technology of CCTV Camera,welcome to visit our company website [link removed - please read the rules] Our Main product-CCTV Camera including IR High-speed Dome,IR Waterproof Camera,IR Vari-focal Camera,IR Array Camera,IP Camera,ect. Welcome to contact us for our products information by email [link removed - please read the rules]