US Patent 7839578 Optical apparatus
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Patent abstract
An optical apparatus includes an optical system in which two zoom lens units perform zooming in different ranges in accordance with a zoom position, and a mechanism for driving the two zoom lens units by a single driving portion. An urging force for urging moving members toward an interlocking movement member that is moved along the optical axis by a feed screw is cut off by regulating portions.
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Patent Inventor Names
Masahiko Tsuzuki0
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US Patent 07839578 Optical apparatus US Patent 7839578 Optical apparatus
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Patent Number
078395780
Patent Number
78395780
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Patent Jurisdiction
Patent Number
078395780
Date of Patent
November 23, 2010
0Patent Application Number
125045200
Date Filed
July 16, 2009
0Official Website
Patent Primary Examiner
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US Patent 07839578 Optical apparatus
Infobox
Is a
Patent jurisdiction
Patent number
07839578
Date of patent
November 23, 2010
Patent application number
12504520
Date Filed
July 16, 2009
Patent primary examiner
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