Photography – Having variable focal length of camera objective – Lens moves in or out of light path
Reexamination Certificate
2006-04-18
2006-04-18
Gray, David M. (Department: 2851)
Photography
Having variable focal length of camera objective
Lens moves in or out of light path
C396S350000, C359S699000, C359S703000, C359S826000
Reexamination Certificate
active
07031604
ABSTRACT:
A linear guide mechanism for guiding rings supporting components of a lens barrel along an optical axis includes an outer ring supporting a first imaging component; an inner ring positioned radially inwardly of the outer ring for supporting a second imaging component; a first guide ring configured to linearly guide the outer ring without rotation of the outer ring; a second guide ring configured to linearly guide the inner ring without rotation of the inner ring; and a linear guide ring having at least one guide portion located on an inner peripheral surface of the linear guide ring, the at least one guide portion engageable with the first and second guide rings, the outer ring and the inner ring being independently guidable via the respective first and second guide rings and are movable linearly along the optical axis without rotating.
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English Language Abstract of JP 58-10708.
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English Language Abstract of JP 10-282394.
English Language Abstract of JP 58-162914.
An English language translation of Japanese Laid-Open Patent Publication No. 2002-277719, which was published on Sep. 25, 2002.
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Gray David M.
Greenblum & Bernstein P.L.C.
PENTAX Corporation
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