OPTICAL UNIT FOR OPTICAL HEAD AND OPTICAL PICKUP DEVICE HAVING OPTICAL UNIT

Title:

OPTICAL UNIT FOR OPTICAL HEAD AND OPTICAL PICKUP DEVICE HAVING OPTICAL UNIT

Document Type and Number:

Japanese Patent JP2006048835

Kind Code:

A

Abstract:

To obtain an optical unit for an optical head in which accurate positioning that is required for the optical unit of the interchangeable optical head constituted of three optical elements is easily conducted among the optical elements.

The optical unit for the optical head has first to third optical elements, a spacer which is held between the first and the second optical elements, a fist mirror frame which holds the first optical element and the spacer and a second mirror frame which holds the second and the third optical elements. In the second mirror frame, a gap is formed to slide either of the second or the third optical elements in a direction orthogonal to the optical axis. The first mirror frame is fixed to the second mirror frame and a gap is formed to slide the first optical element in the direction orthogonal to the optical axis using one of surfaces of the spacer as a sliding section.

Inventors:

MIYAZAKI TAKEMI

Application Number:

JP2004229155A

Publication Date:

February 16, 2006

Filing Date:

August 05, 2004

Export Citation:

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Assignee:

KONICA MINOLTA OPTO INC

International Classes:

G11B7/22; G02B7/00; G02B7/02; G11B7/08

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