Lens barrel

Details Lens barrel Lens barrel

2006-03-14

2006-03-14

Mack, Ricky L. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S700000, C359S701000, C359S702000, C359S819000, C359S822000

Reexamination Certificate

active

07012760

ABSTRACT:
To the female helicoidal screw of the lens barrel (outer barrel body), there is always imparted a biasing force from a plurality of looseness eliminating springs formed on the outside peripheral portion of the lens barrel (inner barrel body) which are integrally supported on the lens barrel (inner barrel body), by means of the male helicoidal screw, and the male helicoidal screw is slid while being thrusted against the female helicoidal screw.

REFERENCES:
patent: 5886832 (1999-03-01), Ihara
patent: 6120865 (2000-09-01), Nomura et al.
patent: 6611663 (2003-08-01), Nakagawa
patent: 57-210304 (1982-12-01), None
patent: 08-304688 (1996-11-01), None

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