Optical deflector and optical scanner having the optical...

Details Optical deflector and optical scanner having the optical... Optical deflector and optical scanner having the optical...

2006-03-28

2006-03-28

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S198100

Reexamination Certificate

active

07019878

ABSTRACT:
The present invention provides an optical deflector capable of reducing a rise in heat of integrated circuits and a housing without increasing noises caused by a wind sound of a rotative polygon mirror, and an optical scanner having the optical deflector. Heat in a lower face of an integrated circuit of a printed board can be allowed to escape by providing a through hole in a lower position of the integrated circuit. By bringing a radiating member into direct contact with the integrated circuit through the through hole, heat of the integrated circuit can be conducted to the radiating member and radiated. Therefore, a rise in a temperature of the housing can be reduced. As a result, life of a bearing can be prolonged and reliability of the integrated circuit can be increased.

REFERENCES:
patent: 5900961 (1999-05-01), Miyamoto et al.
patent: 6449107 (2002-09-01), Tachibe et al.
patent: 6-75184 (1994-03-01), None
patent: 11-242177 (1999-09-01), None

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