Condensing optical device, optical pickup, and optical disc...

Details Condensing optical device, optical pickup, and optical disc... Condensing optical device, optical pickup, and optical disc...

2009-08-20

2011-11-22

Bibbins, Latanya (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S112030, C369S112050, C369S112060, C369S112070, C369S112110, C369S112120, C369S112130, C369S112230, C369S112250, C369S112260

Reexamination Certificate

active

08064315

ABSTRACT:
An optical pickup includes: a first emission unit emitting an optical beam with a first wavelength corresponding to a first optical disc; a second emission unit emitting an optical beam with a second wavelength, which is longer than the first wavelength, corresponding to a second optical disc different from the first optical disc; a third emission unit emitting an optical beam with a third wavelength, which is longer than the second wavelength, corresponding to a third optical disc different from the first and second optical discs; a condensing optical device condensing, on a signal recording surface of a corresponding optical disc, the optical beams emitted from the first to third emission units; and a diffraction unit provided in the condensing optical device, which is disposed on the optical path of the optical beams with the first to third wavelengths.

REFERENCES:
patent: 2002/0122374 (2002-09-01), Yamamoto et al.
patent: 2003/0058776 (2003-03-01), Sakamoto
patent: 2005/0105446 (2005-05-01), Sakamoto et al.
patent: 2009/0316543 (2009-12-01), Hayashibe et al.
patent: 2010/0002562 (2010-01-01), Kaneda
patent: 2010/0008200 (2010-01-01), Ogihara
patent: 2010/0284262 (2010-11-01), Nakamura et al.
patent: 9-312057 (1997-12-01), None
patent: 11-219542 (1999-08-01), None
patent: 11-353785 (1999-12-01), None
patent: 2001-143301 (2001-05-01), None
patent: 2001-357557 (2001-12-01), None
patent: 2002-329316 (2002-11-01), None
patent: 2003-157545 (2003-05-01), None
patent: 2004-265573 (2004-09-01), None
patent: 2005-018967 (2005-01-01), None
patent: 2005-037658 (2005-02-01), None
patent: 2005-209325 (2005-08-01), None
patent: 2005-259332 (2005-09-01), None
patent: 2005-327328 (2005-11-01), None
patent: 2005-353142 (2005-12-01), None
patent: 2006-107734 (2006-04-01), None
patent: 2006-185498 (2006-07-01), None
patent: 2006-309809 (2006-11-01), None
patent: 2007-004962 (2007-01-01), None
patent: 2007-122851 (2007-05-01), None
patent: 2007-294029 (2007-11-01), None
patent: 2007-328886 (2007-12-01), None
patent: 2008-004169 (2008-01-01), None
patent: 2008-071433 (2008-03-01), None
patent: WO 2008/010506 (2008-01-01), None

Affiliated with

Also associated with

Rating

Condensing optical device, optical pickup, and optical disc... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Condensing optical device, optical pickup, and optical disc..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Condensing optical device, optical pickup, and optical disc... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4299531