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Post by luggage1 on Nov 24, 2011 5:25:21 GMT -5
Typically, the lasers diode modules found in CD and DVD drives have a wavelength of 650 nanometers (nm). This produces a bright red laser beam that is similar to those seen in handheld red laser pointers. Other common wavelengths include 532 nm, which is bright green and is typically found in consumer laser pointers, and 405 nm, which is found in Blu-ray™ players.
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Post by belly143 on Nov 24, 2011 5:45:19 GMT -5
Laser diode modules produce a laser beam when current flows through the diode. The term "laser" is actually an acronym that means "light amplification by stimulated emission of radiation". Lasers produce a focused beam of light that travels in a straight line and does not spread out, which is why they are so useful for many applications. Unlike white light, which is a mixture of many different colors, lasers usually produce light of only one color. Laser Engraving
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