Optical unit of a laser module
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United States of America Patent
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N/A
Issued Date -
Oct 25, 2007
app pub date -
Feb 21, 2007
filing date -
Apr 21, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An optical unit of a laser module is installed at front end of a laser diode of a drive circuit board. The optical unit includes a sleeve that is integrally injection molded from plastic material. Moreover, an optical lens is formed at the top of the sleeve. The inner wall of the sleeve is provided with a focus adjusting slope facing the laser diode. In this way, the problems of the prior art with respect to the high material and assembly cost can be resolved by the invention. In other words, the invention ensures the simplification of elements and the reduction of material and assembly cost.
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