LENS BARREL WITH DECELERATION MECHANISM AND IMAGE PICKUP APPARATUS

A lens barrel and an image pickup apparatus that can be downsized and have a high degree of freedom in design is provided. The lens barrel includes a fixed barrel, a guide barrel fixed to the fixed barrel, a cam barrel rotatably supported by the guide barrel, a driver that is supported by the fixed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Izumi, Mitsuhiro, Uemura, Kohei
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:	A lens barrel and an image pickup apparatus that can be downsized and have a high degree of freedom in design is provided. The lens barrel includes a fixed barrel, a guide barrel fixed to the fixed barrel, a cam barrel rotatably supported by the guide barrel, a driver that is supported by the fixed barrel and drives the cam barrel, and a deceleration mechanism that is disposed so as to connect the driver and the cam barrel and decelerates rotation from the driver to transmit the rotation to the cam barrel. The driver is disposed inside the cam barrel. At least part of the deceleration mechanism is disposed so as to overlap the cam barrel when viewed from a direction of an optical axis of an image pickup optical system.