Friday, May 18, 2012
Use the green laser pointer safely
Principles and advantages of laser shows: 1. Laser display technology to the basic principles of laser display technology as red, green and blue color laser light shows can be a true reproduction of the objective world, the most rich, bright colors, to provide even more shocking expression. Cathode-ray tube with the original (CRT), liquid crystal (LCD) and plasma (PDP) and other display technologies compared to conventional display device can reproduce the colors the human eye can see 30% of the laser is being developed in the display can cover 90% of the composition of the display system technology upgrade has made light of the great inventions, the chromaticity to achieve a major breakthrough. Keep the green laser pointer far away from where the kids can get to avoid incident of injury.As the laser line spectrum, color saturation, color; and because the laser line-rich, you can choose to achieve a large color gamut display, so you can display more than CRT, LCD and PDP more than twice the color display technology a long time to resolve outstanding large-gamut color reproduction problems. Therefore, the laser display technology to the most perfect natural colors, is the second black and white display, color display, digital display, the fourth-generation display technology, the laser show is called "revolution in the history of human vision." To use the green laser pointer indoors or in a close distance, please wear the protective glasses.Full-color laser display technology to the red, green and blue laser light source, it works as shown: red, green and blue, respectively, through the expansion of laser pointer beam, shimming, after decoherence incident on the corresponding light valve , add a light valve image modulation signal, modulated by the three-color laser prism together by X after the incident to the projector lens color, and finally through the projection lens onto a screen, get the laser display images. The traditional rear-projection program primarily based on light, color wheel, the image engine chip light path, a combined color projection, projection lens and screen process composition. Laser as a projector light source, laser source separation can take advantage of time-sharing features, the use of spectral synthesis and work-sharing mode, optical image chips directly applied to lighting, abandoned in the past must be used in the optical drive to the UV, IR, polarization mirror, so some of the compound eye lens optics, greatly simplifies the projector optical structure. 2. Please don’t keep the light of green laser pointer on for an overlong time (especially the green light).The advantage of laser products the first full-color display for optical display technology is a high saturation of red, blue (RGB) three-color laser display technology as the light source. Green, the full use of the laser wavelength selectivity and high spectral brightness characteristics of the display image has a greater color gamut performance space, color gamut coverage of up to 90% can be achieved 2 times faster than conventional light sources color reproduction , the color saturation of the traditional display of more than 100 times. Maximum can be identified to show the human eye color, a true reproduction of the objective world, rich, bright colors, to provide even more shocking expression. Please don’t keep the light of green laser pointer on for an overlong time, better shorter than 30 seconds in summer.Red, green and blue lasers in the visible spectrum of international standards for human eye color gamut chart laser display color gamut coverage of the NTSC standard color gamut coverage is more than twice the second, light, long life, low maintenance costs, total cost of the laser light source completely break the traditional sources of electro-optical conversion mode, up to 10 years of life, the life of traditional light sources 10 times to 20 times.
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