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Keiji Sakamoto, Osaka JP

Keiji Sakamoto, Osaka JP

Patent application numberDescriptionPublished
20090116123CAMERA - It is an object of the present invention to provide a camera realizing simultaneously a high magnification zoom lens system and the miniaturization of the device. The digital camera (05-07-2009
20090122421IMAGING DEVICE AND CAMERA - The present invention aims to provide an imaging device and a camera realizing simultaneously a high magnification zoom lens system and the miniaturization of the device. The imaging device (05-14-2009
20090129764IMAGE BLUR CORRECTING DEVICE AND CAMERA - It is an object of the present invention to provide an image blur correcting device having a dimension reduced in any one direction perpendicular to the optical axis of the incident light, and a camera equipped with this device. The image blur correcting device 05-21-2009
20090153985LENS BARREL, IMAGE PICKUP DEVICE, AND LENS BARREL MANUFACTURING METHOD - A lens barrel includes a fourth lens, a prism, and a sixth lens. The fourth lens receives a light flux incident along a first optical axis. The prism includes a reflecting surface reflecting the light flux passing through the fourth lens to a direction along a second optical axis intersecting with the first optical axis. The sixth lens receives the light flux reflected by the prism. A second group frame includes an opening portion, a prism retaining frame that is arranged in a more inner position than the opening portion and in which the prism is contained, and a plurality of adhesive pockets arranged on an area around the prism retaining frame and being open to the side of the opening portion. Adhesive agent is filled in the adhesive pockets.06-18-2009
20090268310LENS DRIVING APPARATUS, IMAGING APPARATUS, AND LENS BARREL AND CAMERA MAIN BODY USED FOR THIS - A lens position calculator is provided that determines a phase of a driving signal as a reference position of an imaging lens when an output value of a position detection sensor reaches a threshold value. The lens position calculator determines a position obtained by performing addition or subtraction on the reference position read out from a reference position storage as a judgment position, detects an output value of the position detection sensor at a timing in synchronization with the driving signal that drives a driver and at the judgment position, and judges whether the output value of the position detection sensor at the judgment position reaches the threshold value or not, so as to determine the reference position again.10-29-2009
20090322927CAMERA - The present invention has an object in providing a camera with which further miniaturization is realized, in a camera having the bending optical system. A digital camera (12-31-2009
20100142939LENS BARREL SUPPORTING FRAME, LENS RETAINING STRUCTURE, LENS BARREL AND CAMERA - Lens barrel 06-10-2010
20100188551LENS BARREL, IMAGE PICKUP DEVICE, LENS BARREL INSPECTING METHOD, AND LENS BARREL MANUFACTURING METHOD - A lens barrel includes a fourth lens, a prism, and a sixth lens. The fourth lens receives a light flux incident along a first optical axis. The prism includes a reflecting surface reflecting the light flux passing through the fourth lens to a direction along a second optical axis intersecting with the first optical axis. The sixth lens receives the light flux reflected by the prism. A second group frame includes an opening portion, a prism retaining frame that is arranged in a more inner position than the opening portion and in which the prism is contained, and a plurality of adhesive pockets arranged on an area around the prism retaining frame and being open to the side of the opening portion. Adhesive agent is filled in the adhesive pockets.07-29-2010
20100310245LENS DRIVING APPARATUS, IMAGING APPARATUS, AND LENS BARREL AND CAMERA MAIN BODY USED FOR THIS - A lens position calculator is provided that determines a phase of a driving signal as a reference position of an imaging lens when an output value of a position detection sensor reaches a threshold value. The lens position calculator determines a position obtained by performing addition or subtraction on the reference position read out from a reference position storage as a judgment position, detects an output value of the position detection sensor at a timing in synchronization with the driving signal that drives a driver and at the judgment position, and judges whether the output value of the position detection sensor at the judgment position reaches the threshold value or not, so as to determine the reference position again.12-09-2010
20110075278LENS BARREL, IMAGE PICKUP DEVICE, AND LENS BARREL MANUFACTURING METHOD - A lens barrel includes a fourth lens, a prism, and a sixth lens. The fourth lens receives a light flux incident along a first optical axis. The prism includes a reflecting surface reflecting the light flux passing through the fourth lens to a direction along a second optical axis intersecting with the first optical axis. The sixth lens receives the light flux reflected by the prism. A second group frame includes an opening portion, a prism retaining frame that is arranged in a more inner position than the opening portion and in which the prism is contained, and a plurality of adhesive pockets arranged on an area around the prism retaining frame and being open to the side of the opening portion. Adhesive agent is filled in the adhesive pockets.03-31-2011
20110115975IMAGING DEVICE - To produce a subject's image on an imager as accurately as possible, a technique that is effectively applicable to the process of assembling an optical system is provided.05-19-2011

Patent applications by Keiji Sakamoto, Osaka JP