Optical device

Details Optical device Optical device

2010-03-01

2011-11-01

Tran, Thang (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044120, C369S121000

Reexamination Certificate

active

08050167

ABSTRACT:
An optical device includes a sub-mount2mounting first and second semiconductor lasers1a, 1band having an onboard part for the semiconductor lasers and an optical-path conversion mirror7integrated with each other, and a light receiving element11arranged on a light receiving element substrate to have first and second light receiving regions separated from each other by at least one parting line. In the optical device, one light gravity center of an optical spot, which is formed on the light receiving element11by homeward flux of light emitted from the first semiconductor laser1aand reflected by an optical disc55, and another light gravity center of an optical spot, which is formed on the light receiving element11by homeward flux of light emitted from the second semiconductor laser1band reflected by the optical disc55are together positioned on the parting line.

REFERENCES:
patent: 5742315 (1998-04-01), Szlucha et al.
patent: 6542315 (2003-04-01), Shindo
patent: 6778486 (2004-08-01), Arikawa et al.
patent: 2002/0008888 (2002-01-01), Ohyama
patent: 2002/0093893 (2002-07-01), Matsuda
patent: 2003/0063552 (2003-04-01), Uchizaki
patent: 2003/0098405 (2003-05-01), Yamamoto et al.
patent: 2005/0237871 (2005-10-01), Lee
patent: 2000-196176 (2000-07-01), None
patent: 2005-56480 (2005-03-01), None

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