Automatic focus control unit, electronic device and...

Details Automatic focus control unit, electronic device and... Automatic focus control unit, electronic device and...

2009-03-18

2011-12-06

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C250S221000

Reexamination Certificate

active

08071929

ABSTRACT:
Disclosed herein is an automatic focus control unit including: a first light-emitting element; a line sensor; a second light-emitting element; a slit member; a shifting mechanism; and a controller.

REFERENCES:
patent: 6567126 (2003-05-01), Slatter et al.
patent: 7301133 (2007-11-01), Weiss
patent: 7345814 (2008-03-01), Yoneyama et al.
patent: 2006/0249651 (2006-11-01), Kurata et al.
patent: 2008/0111911 (2008-05-01), Kawanabe
patent: 10-161195 (1998-06-01), None
patent: 11-249027 (1999-09-01), None

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