Integrated optical unit for use with miniature optical discs

Details Integrated optical unit for use with miniature optical discs Integrated optical unit for use with miniature optical discs

2006-02-28

2006-02-28

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044230, C369S121000, C369S013320, C369S112120

Reexamination Certificate

active

07006426

ABSTRACT:
Light from a laser diode is directed by mirrors on angled surfaces of an optical unit through a first lens at an optical disc. Light returns from the disc on a parallel path through a second lens and is directed at a photodetector. A semiconductor device controls the operation of the laser diode and receives signals form the photodetector for processing. The optical unit is formed from one or two glass elements cut from a larger glass wafer or wafers using photolithographic techniques. The mirrors are formed by thin films deposited on angled glass surfaces formed by selective plasma etching of the wafers. At least one mirror is partially reflective and is formed by depositing a thin film of titanium nitride.

REFERENCES:
patent: 4570249 (1986-02-01), Malissin et al.
patent: 5241528 (1993-08-01), Mohri et al.
patent: 5323378 (1994-06-01), Kim et al.
patent: 5583704 (1996-12-01), Fujii
patent: 5684780 (1997-11-01), Ando
patent: 5689108 (1997-11-01), Ohyama
patent: 5783818 (1998-07-01), Manabe et al.
patent: 5790504 (1998-08-01), Hayashi et al.
patent: 6055088 (2000-04-01), Fix et al.
patent: 6235141 (2001-05-01), Feldman et al.
patent: 6275332 (2001-08-01), Hohenegger et al.
patent: 6292302 (2001-09-01), Krisko et al.
patent: 6416194 (2002-07-01), Demiryont
patent: 6496465 (2002-12-01), Broome et al.
patent: 6529454 (2003-03-01), Asoma et al.
patent: 6542447 (2003-04-01), Matsuo et al.
patent: 6717893 (2004-04-01), Niss et al.
patent: WO 99/40578 (1999-08-01), None
patent: WO 00/03390 (2000-01-01), None
patent: WO 01/43126 (2001-06-01), None

Affiliated with

Also associated with

Rating

Integrated optical unit for use with miniature optical discs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated optical unit for use with miniature optical discs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated optical unit for use with miniature optical discs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3710206