Optical pickup and optical disc apparatus using the same

Details Optical pickup and optical disc apparatus using the same Optical pickup and optical disc apparatus using the same

2008-06-04

2011-11-22

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

08064320

ABSTRACT:
An optical pickup includes first and second objective lenses; a first raising optical element that reflects an optical beam from a first direction within a plane substantially orthogonal to an optical axis of the first objective lens, thereby the optical beam being incident on the first objective lens; and a second raising optical element that reflects an optical beam from a second direction at an angle to the first direction within a plane substantially orthogonal to the optical axis of the second objective lens, thereby the optical beam being incident on the second objective lens. At least one lateral surface of at least one of the first and second raising optical elements is at an angle of 90 degrees or smaller to a reflection surface thereof. The lateral surface of the one raising optical element is arranged to face a lateral surface of the other raising optical element.

REFERENCES:
patent: 2005/0007906 (2005-01-01), Horinouchi et al.
patent: 2006/0002275 (2006-01-01), Huang et al.
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patent: 2006-4547 (2006-01-01), None
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patent: 2007-334990 (2007-12-01), None
patent: WO 2006/112153 (2006-10-01), None
Office Action issued on Jul. 26, 2011, in Japanese Patent Application No. 2007-188646, filed Jul. 19, 2007 (with English-language Translation).

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