Multi-laser system
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United States of America Patent
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Jun 23, 2009
Grant Date -
Dec 28, 2006
app pub date -
Aug 31, 2006
filing date -
Jun 16, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
″). The element may be, for example, any of the optical glass fibers, a prism, or a lens, such as a diffraction beam splitter lens, or a refractive lens, each element directing laser light onto the target surface to produce a visually perceptible target marking. The element is preferably made of optical material such as glass or plastic (e.g., methyl methacrylate). Separate laser emitters permit greater brightness displayed on the target within safe operation limits than use of a single laser alone, even with a beam splitter. The laser emitters may each be separately powered and may also each be switched on or off or changed in brightness.
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