Optical: systems and elements – Absorption filter – With support or frame
Reexamination Certificate
2005-12-20
2005-12-20
Chang, Audrey (Department: 2872)
Optical: systems and elements
Absorption filter
With support or frame
C359S379000, C396S144000
Reexamination Certificate
active
06977784
ABSTRACT:
An image-taking apparatus includes an image-taking portion provided with a taking lens system. A filter to be brought into close contact with the taking lens system is held by a filter holder. A moving mechanism moves a movable member in the direction of the optical axis of the taking lens system. A spring intervenes between the filter holder and the movable member and urges the filter holder toward the taking lens system in the direction of the optical axis thereof.
REFERENCES:
patent: 3813167 (1974-05-01), Johnson et al.
patent: 4013347 (1977-03-01), Nakamura
patent: 5987262 (1999-11-01), Higuchi et al.
Chang Audrey
Fuji Photo Film Co. , Ltd.
Sughrue & Mion, PLLC
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