LENS DEVICE

PROBLEM TO BE SOLVED: To provide a lens device in which the lens device is fixed in the position where eccentricity performance is exhibited best and a zooming knob and a focusing knob are disposed directly on a lens barrel. SOLUTION: The lens device 30 includes: the lens barrel 35; a pressing plate...

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Bibliographic Details
Main Author SHIROTA HIROSHI
Format Patent
LanguageEnglish
Published 04.11.2010
Subjects
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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Summary:PROBLEM TO BE SOLVED: To provide a lens device in which the lens device is fixed in the position where eccentricity performance is exhibited best and a zooming knob and a focusing knob are disposed directly on a lens barrel. SOLUTION: The lens device 30 includes: the lens barrel 35; a pressing plate 38 which supports the lens barrel so as to be freely rotatable around an optical axis and fixes the lens barrel 35 at an adjusted position; the zooming knob 27 and focusing knob 28 which are fixed to a zooming rotary cylinder 45 and focusing rotary cylinder 46 assembled in the lens barrel 35, and rotates the corresponding rotary cylinders; and screw holes 61 and 62 which are provided in a plurality of circumferential areas of the zooming rotary cylinder 45 and focusing rotary cylinder 46 respectively and are selected from the plurality of areas so that the zooming knob 27 and focusing knob 28 are located directly on the lens barrel 35 in accordance with the fixed position of the lens barrel 35, and fix the knobs. COPYRIGHT: (C)2011,JPO&INPIT
Bibliography:Application Number: JP20090101689