Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Environmental control
Reexamination Certificate
2006-09-27
2010-11-30
Renner, Craig A. (Department: 2627)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Environmental control
C720S680000
Reexamination Certificate
active
07844981
ABSTRACT:
An optical disc drive is fitted with a pickup, a non-contacting cooling plate, and a resinous movable spacer. The cooling plate adjacently faces and is fixed to the under, right, or left side of the pickup. The movable spacer is fitted to one of the facing sides of the pickup and cooling plate and prevents direct contact between the pickup and the plate. This drive structure prevents pickup movement interference due to collision between the pickup and the cooling plate, contamination production, needless electric conduction, etc., so that the clearance between the facing sides of the metallic pickup and metallic non-contacting cooling plate is narrow. The narrow clearance results in an improved heat conduction and radiation characteristic, improving the cooling of the whole pickup.
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Shizuya Mitsutaka
Tsubota Shinya
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Hitachi-LG Data Storage, Inc.
Polo Gustavo
Renner Craig A.
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