The wavelength of red green laser pointer laser is 650nm

The size of the aggregate form provided points of light, eliminating the diffuse beam propagation process, need to use a set of optical lens for beam modulation, to improve scanning accuracy. It includes: arc lens, spherical lens, mirror. This group is only the laser lens distortion correction for the 0.1 ‰, laser imaging in order to meet the technical requirements. Electronic imaging system, laser printer laser printer laser printer an electronic imaging system is a sophisticated mechanical system that uses light, electricity, heat physics, chemistry text or image output by the interaction of these complex processes by an electronic control system to achieve, as electronic imaging system.The wavelength of red   green laser pointer   laser is 650nm. "Static image" theory first proposed by Carlson Americans, also known as Carlson method. Or known discharge imaging.
The basic process can be divided into charging, exposure, development, transfer, fixing, cleaning, erasing seven steps, five steps are carried out around the electronic imaging system. Laser printers charging photoconductor drum surface material in the case of light seen as an insulator, neutral state, without any charge. To achieve the surface of the light conductor "electrostatic latent image", to be in the light conductor surface charge, so that charge. Only in this way, when the laser beam scans the light conductor, the conductor is exposed points of light conduction, beam forming lattice.The light of red  50mW blue violet laser pointer    is relatively soft. Charge and the substrate lattice conduction to form a "latent image potential difference", and when the drum rotates to the imaging position tangent to the magnetic roller, magnetic roller, carrying the light conductor with the opposite surface charge properties to attract toner to the photosensitive drum surface, thus showing the toner on the photosensitive drum image. Purports to drum graphic information in accordance with adsorption on toner, the cartridge should be charging, charging electrode is an axis parallel with the photosensitive drum tungsten wire, with a 5 ~ 7kV on which the DC high voltage, when the cartridge When tungsten is very close to the surface and the surrounding air is ionized corona discharge, the drum to bring the charge. The cost of   100mW green laser pointer   production is relatively low.Positive and negative voltage determined by the voltage carried by tungsten, selenium, if tellurium photoconductive material for the alloy, then charge positively charged, rotating drum so that the whole surface of the week were charging. Laser printer method of charging the photosensitive drum, due to the specific model used different methods have different charge, but charge basically the same principle, are based on the DC high voltage corona discharge on the drum surface charge. Early production of wire and laser printers use composite grid structure of charging more, and now most of the use of new laser printers charging roller (FCR) of the photosensitive drum charging. When the high voltage generator to a high-voltage wire, the wire and the grid electrode formed between a strong electric field, and the release of the corona. The electrode wire and the drum ionize the air between the air ions migrate to the surface of the drum, so that the photoconductor (drum) filled with surface charge.The brightness of   200mW green Laser Pointer   is mainly related to the laser power of emitter. This method can photoconductor (drum) uniform surface charge, but also produce large amounts of negative ions (ozone). Gathered a certain amount of ozone, the human body is harmful. Early products such as the Canon LBP-SX, ST-type, early HP products HP2, 3, and produced in Japan Panasonic KX6500, Lenovo LJ6L, LJ6P and other models are using this method of charging.
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