Lens barrel

With a lens barrel, the depth of a first cam groove is substantially the same as the depth of a second cam groove. The length of a first cam protrusion in a first direction is greater than the length of the second straight portion in the first direction. The length of a second cam protrusion in a se...

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Bibliographische Detailangaben
1. Verfasser:	UNO TETSUYA
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	With a lens barrel, the depth of a first cam groove is substantially the same as the depth of a second cam groove. The length of a first cam protrusion in a first direction is greater than the length of the second straight portion in the first direction. The length of a second cam protrusion in a second direction is greater than the length of a first straight portion in the second direction.