When dot measuring work is processed under special work fields, such as night vision illumination work fields, nothing can be workable until the time users are selecting a quite long wavelength made 808nm infrared dot laser alignment. It is getting quite long wavelength than any visible laser devices, which is just projecting invisible IR laser beam and IR reference dot in distance. This infrared laser module is just used as an accessory part, only if it is used under night vision device, such as a CCD camera, black and white camera or infrared laser camera, it will be workable with highly clear and accurate IR dot projection under night vision effectively.
The design work of 808nm infrared dot laser alignment is not the same as any visible laser device. It is emitting invisible IR light from beam aperture. When it is workable with wide range output power of 5mW to 500mW, owing to its quite high photoelectric ability, it is always workable at even longer work distance. It is enough to make dot projection with lower power within 5mW to 200mW to get clear dot alignment at quite close distance. In occasion that highly clear dot projection is processed at quite longer distance, this laser diode module should be selected with higher power up 200mW to 500mW, which will make highly clear IR dot alignment at longer distance of 100 meters to 1000 meters in distance easily.
According to the design with quite high quality glass coated lens, even though 808nm infrared dot laser alignment is used for a long time or quite long work distance, it is still workable with highly clear dot projection and available with quite high laser beam transmittance. When it is passing through quite strict laser beam stability test up to 24 hours, and being used by skilled users or professionals, this infrared laser module would be workable with good laser light cycling use and highly stable IR dot projection for multiple work fields, including laser medical treatment device, military targeting, surveillance and intelligence system etc.
Whatever kind of working surface, 808nm infrared dot laser alignment is required to maintain high level of laser beam stability in constant use. The adoption of APC, ACC driving circuit board is just assuring the most efficient preventing of electric current impacting, and then maintaining highly stable and reliable IR dot projection within daily operating time of 8 to 10 hours. Even though you are only choose a quite low power of 5mW, this laser diode module is still projecting invisible IR laser beam from beam aperture. Users should pay special attention to IR laser light and thermal energy, after proper wearing of 808nm infrared laser safety goggles and avoiding eye exposure to beam aperture, it will easily obtain highly secured and free IR dot projection perfectly.
