Optical system having a convex surface for accessing a storage medium
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United States of America Patent
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May 23, 2006
Grant Date -
May 15, 2003
app pub date -
Jul 3, 2002
filing date -
Dec 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical system for accessing a storage medium. The system combines two kinds of laser diode, abandons some unnecessary optical elements used in the prior art, and further uses a Penta prism to fold the optical path. Moreover, the optical system uses a CZBO prism to locate the two laser diodes abreast of each other. Thus, the space of the optical system is reduced, and the optical system is more compact.
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