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blue laser |
Also found in: Wikipedia | 0.04 sec. |
blue laserA semiconductor laser that emits light in the 400-450 nm range. Although it was very difficult developing blue lasers, which emit smaller wavelengths than other colors, blue lasers became commercially available in 2001. Blue diode lasers allow for smaller pits to be used in optical discs (CD-ROMs use 780 nm pits; DVDs are 630 nm). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Everything about the story of how the blue laser diode was developed defied conventional wisdom. Producing a blue laser diode is a great step, but you need to get the cost down, the power output up, and the right color to use this in [an electronic] display," says R. The latest prototype dual-compatibility player incorporates an optical pick-up head integrating both a red laser diode for standard DVD discs and a blue laser diode for HD DVD, along with a single objective lens that works with both. |
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