Principle structure of searchlight How about the performance of searchlight?
Searchlights are a special lighting device. Previously, this kind of lamps was very useful at night, and it was very important. It was mainly used for long-distance lighting and search. Many people may not understand it. Then the principle structure of searchlights is What? How is the performance of the searchlight? Don't worry, BENWEI LIGHTING is here to explain it to everyone, let's take a look.
searchlight
Principle structure of searchlight:
According to the optical properties of the parabolic reflector, the light emitted by the point light source placed on the focal point of the parabola forms a parallel beam parallel to the optical axis of the parabola after being reflected by the parabola. In fact, all light sources have a certain volume. However, because high-power searchlight reflectors have a large caliber, close to 1m or more in diameter, relatively speaking, the diffusion of reflected light caused by the volume of the light source is very small, and the luminous flux emitted by the searchlight is concentrated in a small solid angle. According to the basic concept of photometry, a certain amount of luminous flux is concentrated in a small solid angle, which will inevitably produce a great luminous intensity. A large searchlight has an axial intensity of hundreds of millions of candela and a projection distance of up to 200km. This is the principle that searchlights can illuminate long-distance targets.
The searchlight is composed of a light source and a reflector, and generally contains one or more optical lenses in the front section. The light is first collected into a beam by a reflector (curved mirror or spherical mirror), and then controlled by the position and combination of the optical lens, and finally projected out.
Searchlights are mainly used in the lighting of vehicles, movie shooting, theaters, and buildings or exhibitions.
Searchlights generally use halogen tungsten lamps as light sources, and some use ultra-high pressure mercury lamps, metal halide lamps and ultra-high pressure xenon lamps as light sources.
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How is the performance of the searchlight?
1. Flexible and light: The rotary switch can switch the strong light and working light at will.
2. Waterproof and anti-fall: The structure is optimized and the material is made of imported bullet-proof rubber materials to ensure that the product can be operated at 50 meters underwater, and the fall resistance can reach 1 meter without damage.
3. High efficiency and energy saving: the light source adopts German Osram, or imported HID bulbs, with high light efficiency, long life, strong vibration resistance, soft concentrating, and special super-capacity battery packs, no memory, long cycle life, and intelligent over-discharge protection , Short circuit protection, environmental protection and pollution-free, with LED light source at the tail.
4. Smart charging: The charger adopts chip control charging, high reliability, with overcharge protection, short circuit protection, trickle charging and charging status indication.
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Let me stop here for the explanation of the principle and structure of the searchlight and the performance of the searchlight. The content is for your reference only, and I hope it can be helpful to everyone.
