Temperature compensated laser focusing optics
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United States of America Patent
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Mar 16, 2010
Grant Date -
Mar 29, 2007
app pub date -
Sep 9, 2005
filing date -
Sep 9, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A laser source assembly comprises a laser diode for generating a laser beam and a focusing lens for focusing the light beam. A spacer is provided for keeping the diode and the lens at a predetermined distance, and is made of a material of low expansion coefficient. Preferably, the subassembly constituted of the diode, the spacer and the lens is housed in a case made of another material that may have a higher expansion coefficient. A resilient element is provided to continuously keep the diode and the lens abutting on the opposite ends of the spacer.
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