Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2006-12-12
2006-12-12
Thompson, Timothy (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S703000, C359S683000, C359S819000
Reexamination Certificate
active
07149039
ABSTRACT:
To provide a lens barrel having an optical filter at a low cost, a lens barrel is provided and has: an aperture between two lenses held in the lens barrel; and at least one optical filter disposed to rearward of one of the two lenses, wherein the one of the two lenses is situated closer to the camera body than the other of the two lenses, and the at least one optical filter blocks or passes light depending on a wavelength of the light.
REFERENCES:
patent: 6452732 (2002-09-01), Okada et al.
patent: 6796682 (2004-09-01), Hough et al.
patent: 6909558 (2005-06-01), Orimo et al.
patent: 2003/0103157 (2003-06-01), Watanabe et al.
patent: 2005/0018423 (2005-01-01), Warnecke et al.
patent: 1207687 (2002-05-01), None
patent: 11125852 (1999-05-01), None
patent: 2002-189238 (2002-07-01), None
patent: 2002-350701 (2002-12-01), None
European Search Report dated Mar. 27, 2006.
Fujinon Corporation
Harness Dickey & Pierce
Thompson Timothy
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