Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2004-11-09
2008-11-11
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S112230
Reexamination Certificate
active
07450476
ABSTRACT:
A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.
REFERENCES:
patent: 5007713 (1991-04-01), Yoshifusa et al.
patent: 5581403 (1996-12-01), Kobayashi et al.
patent: 5629916 (1997-05-01), Komiya
patent: 6195315 (2001-02-01), Takahashi et al.
patent: 6587481 (2003-07-01), Seong et al.
patent: 7099085 (2006-08-01), Yamada et al.
patent: 7106771 (2006-09-01), Shinohara et al.
patent: 2000-353332 (2000-12-01), None
patent: P2002-0059779 (2002-07-01), None
Korean Office Action dated Apr. 16, 2005 with English-language translation.
Kim Bong-Gi
Lee Mun-Whan
Nam Do-Hoan
Park Chun-Seong
Bibbins LaTanya
Roylance Abrams Berdo & Goodman LLP
Samsung Electronics Co,. Ltd.
Young Wayne
LandOfFree
Light emitting module and optical pickup apparatus and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light emitting module and optical pickup apparatus and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting module and optical pickup apparatus and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4034256