Pickup device having a heat-radiation path

Details Pickup device having a heat-radiation path Pickup device having a heat-radiation path

2006-10-17

2006-10-17

Watko, Julie Anne (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Protecting optical transducer

Reexamination Certificate

active

07124420

ABSTRACT:
A communication hole (55) is provided in a pickup base (51). A laser light source (61) is provided at an end of the communication hole (55). A grating (71) is provided at another end of the communication hole (55). The communication hole (55) is provided with a heat radiation path (81) which connects the inside of the communication hole (55) with the outside of the pickup base (51). Heat generated from the laser light source (61) is radiated from the heat radiation path (81).

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