Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2005-11-22
2005-11-22
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S694000, C396S544000
Reexamination Certificate
active
06967790
ABSTRACT:
A detachable zoom lens assembly includes a holder base, which has an insertion slot in the periphery and a light path through the two ends, a coupling structure for coupling the holder base to a photographic apparatus, a special effect unit detachably inserted into the insertion slot to hold a special effect lens in the light path, and a zoomer coupled to the front end of the holder base to hold a zoom lens for changing the focus of incident light.
REFERENCES:
patent: 5745298 (1998-04-01), Yahagi
patent: 6424473 (2002-07-01), Nakane et al.
David Pai Chao-Chang
E-Benk Tech Co., Ltd.
Pai Patent & Trademark Law Firm
Schwartz Jordan M.
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