Accessory and accessory for image pickup apparatus

Details Accessory and accessory for image pickup apparatus Accessory and accessory for image pickup apparatus

2007-10-02

2011-11-22

Aggarwal, Yogesh (Department: 2622)

Television

Camera, system and detail

Support or housing

C348S222100, C348S372000, C348S374000, C348S376000

Reexamination Certificate

active

08063980

ABSTRACT:
An accessory and an accessory for an image pickup apparatus are provided and are advantageous in reducing cost by reducing the number of parts. A retaining ring is engaged in an annular groove formed in an outer circumference of a cylindrical part of a wide-angle converter lens. Each of retaining ridges has a bottom wall extending from the inner circumference of the annular part in the direction of the width of the annular part in a recess, and a protruded wall extending radially outward of the annular part from the end of the bottom wall, spaced from the annular part, and protruding radially outward from the first outer circumference. When the parts, provided with the retaining ridges, of the annular part are depressed radially inward of the annular part, the protruded wall sink radially inward from the first outer circumference.

REFERENCES:
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patent: 7616880 (2009-11-01), Shirako et al.
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patent: HEI 11-194395 (1999-07-01), None
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Preliminary Report on Patentability and Written Opinion dated Jul. 9, 2009, for corresponding Patent Application PCT/JP2007/069253.
Japanese Office Action issued on Oct. 28, 2010, for corresponding Application No. JP 2006-349028.

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