Konica Minolta Opto, Inc.

Konica Corporation

Masayoshi Ohsato

Toru Kawabe

Takao Misawa

Hideaki Yamamoto

A lens barrel, including plural lens units for zooming and focusing a subject, an actuating section for moving at least one of the plural lens units, and a housing section for house the plural lens units and the actuating section, wherein the actuating section includes, a vibrating member including plural piezoelectric elements assembled to cross each other at a predetermined angle, and the vibrating member vibrates based on applied high frequency electrical signals, a rail member assembled facing the vibrating member, and a rotatable supporting member for sandwiching the rail member with the vibrating member, and wherein the rail member is assembled on the housing section, while the vibrating member and the rotatable supporting member are assembled on the lens unit which moves for zooming and focusing the subject.

Lens barrel

There is described a lens barrel including; a plurality of lens units; an actuator to move at least a lens unit included in the plurality of lens units; and a housing member. The actuator includes: a vibrating device constituted by two vibrating members, each of which includes piezoelectric elements aligned in a line, so that the two vibrating members intersect each other at a predetermined angle and vibrate in response to high-frequency electric signals; a driven member, coupled to the lens unit, to be moved by vibrations generated by the vibrating device; and a supporting member that is rotatably mounted on a shaft disposed opposite to the vibrating device in such a manner that the vibrating device press-contacts the driven member. The driven member is disposed at a side of the lens unit, while the vibrating device and the supporting member are disposed at a side of the housing member.

There is described an image reading apparatus that reads image information from a document, such as a negative film, a photographic prints, etc., on which image information is recorded. The image-apparatus includes a plurality of light sources for emitting lights, wavelengths of which are different relative to each other; an image-reading section to read the image by detecting either transmitted lights or reflected lights, which are obtained by irradiating the lights emitted from the plurality of light sources onto the image recorded on a document; and a light-amount adjusting section to independently adjust each amount of the lights emitted by the plurality of light sources, when the image-reading section reads the image.

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Hachioji, Japan

Masayoshi Ohsato