Wednesday, June 20, 2012

This type of green laser pointer has the full power of 100mW

Full Power ofgreen laser pointer
Full power of green laser pointer can be achieved. Highly charged first by charging the drum surface to obtain a certain potential, followed by the information contained graphic images of the laser beam exposure, then the drum surface to form electrostatic latent image, developing through a magnetic brush developer, latent image that is into a visible toner image, after the transfer zone, the transfer electrode of the electric field, the toner will transfer to plain paper, the final warm-up fuser roll hot plate and heat, melt a piece of paper that pour out of the text and images. Graphic information in print before, clean the transfer roller to take the toner is not removed, cleaning lamp to remove residual charge on the drum, and then clean the paper system for thorough cleaning, you can enter a new round of work cycle. We usually called the light-emitting objects, such as the sun, lights, burning candles. Light has energy, it can make objects become hot, so light-sensitive photographic film, which is the energy conversion phenomenon. Included in the light beam, the beam injected into people's eyes, it causes the human vision, so we can see the light emission of light. So why do we still see non-luminous objects in it? Because the light emission of light shines on them, non-luminous objects by light, diffuse light in all directions injected into our eyes, so we can see non-luminous objects. This type of green laser pointer has the full power of 100mW.
Produce laser light source, light sources and the general significantly different. Such as ordinary incandescent tungsten filament light source is heated by the current of atoms to the excited state, in the excited states of atoms continuously emitting radiation spontaneously. This common source of great scattering and diffuse, we can not control the formation of focused beam, it can not be used in laser printers. Laser beam laser printer needs must have the following characteristics: high directivity. The beam of light at a certain distance without scattering and diffuse. High monochromaticity. White light from the seven-color light component. High brightness, and conducive to the beam with a high concentration of physical energy. High coherence, easy stacking and separation. Laser light source is a laser scanning system, with good direction, color and strong, coherent and high energy concentration, ease of modulation and deflection characteristics. Early production of laser printers use more helium - neon (He-Ne) gas laser, the wavelength of 632.8μm, which is characterized by high output power, size, long life (typically greater than 10,000 hours), reliable performance, low noise, high output power. But because the volume is too large, and now basically obsolete. Modern laser printers using semiconductor lasers, gallium arsenic is common - gallium aluminum arsenide (CaAs-CaAlAs) series, the laser beam emitted near-infrared wavelength is generally (λ = 780μm), with the wavelength sensitivity of the photosensitive drum features to match. The full power of green laser pointer has to be ensured all the time.

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