Focus adjustment mechanism for a video or image pickup...

Details Focus adjustment mechanism for a video or image pickup... Focus adjustment mechanism for a video or image pickup...

2005-03-15

2005-03-15

Christensen, Andrew (Department: 2615)

Television

Camera, system and detail

Support or housing

C348S345000, C348S357000, C396S082000

Reexamination Certificate

active

06867812

ABSTRACT:
A rail groove is provided on an outer peripheral portion of a focus adjusting ring. A lens seat, supporting an image pickup lens, is attached to an escutcheon forming a main body. A plurality of engaging protrusions, provided on a front surface of the escutcheon around the lens seat, engage with the rail groove. Cam surfaces, formed on the focus adjusting ring, are brought into contact with protrusions of a bracket which mounts an imaging element. The rotational motion of the focus adjusting ring is converted into a linear or progressive motion of a bracket by the cam surfaces.

REFERENCES:
patent: 5032919 (1991-07-01), Randmae
patent: 5115267 (1992-05-01), Kondo et al.
patent: 5333024 (1994-07-01), Labaziewicz
patent: 5739853 (1998-04-01), Takahashi
patent: 5825559 (1998-10-01), Johnson et al.
patent: 6351288 (2002-02-01), Johnson et al.
patent: 2-111175 (1990-04-01), None

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