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公开(公告)号:GB2195047B
公开(公告)日:1991-04-17
申请号:GB8719201
申请日:1987-08-13
Applicant: CANON KK
Inventor: OGAWA YUKIO , IKAWA KAZUO , SHOJI TORU , TAMAMURA HIDEO , NAKAYAMA HIROKI , MATSUSHITA TAKASHI
Abstract: A flash device for a camera of the kind using a miniature lamp type flash tube solves all the problems resulting from the use of the straight tube type flash tube. The disclosed arrangement of the flash device not only ensures an adequate light distributing characteristic in all the vertical and lateral directions but also permits reduction in size of an electronic flash unit.
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公开(公告)号:DE3016094A1
公开(公告)日:1980-11-13
申请号:DE3016094
申请日:1980-04-25
Applicant: CANON KK
Inventor: OGAWA YUKIO , HIROHATA MICHIO
IPC: G03B9/10 , G03B9/08 , G03B9/22 , G03B9/24 , H02K3/26 , H05K1/00 , H05K1/02 , H05K1/11 , G03B7/10 , G03B7/085
Abstract: An electromagnetic drive device is described for use in a camera to electromagnetically drive the diaphragm or shutter blades. A conductive coil pattern is positioned on the opposite sides of a rotor for the shutter drive. The shutter blades, which are driven by the rotor, are made of a synthetic resin. In order to connect the rotor to the shutter blades, electrically conductive drive pins are used to electrically couple the coil pattern on one side of the above-described rotor to the pattern on the opposite rotor side. The axle of the drive pin, moreover, is fixed in a penetration hole in the rotor.
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公开(公告)号:DE3005177A1
公开(公告)日:1980-08-21
申请号:DE3005177
申请日:1980-02-12
Applicant: CANON KK
Inventor: OGAWA YUKIO , HARIGAYA ISAO , YAMADA TATEO , HIROHATA MICHIO
Abstract: A camera having an electromagnetically driven shutter provided with a counter capable upon counting a present number producing a signal. Each time the shutter is closed, the counted value is changed, while the period of actuation of the shutter is controlled to effect a predetermined fraction of an exposure, so that a continuous sequence of shots equal in number to that preset in the counter are taken automatically.
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公开(公告)号:DE3003462A1
公开(公告)日:1980-08-07
申请号:DE3003462
申请日:1980-01-31
Applicant: CANON KK
Inventor: HIROHATA MICHIO , OGAWA YUKIO
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公开(公告)号:DE2924876A1
公开(公告)日:1980-01-17
申请号:DE2924876
申请日:1979-06-20
Applicant: CANON KK
Inventor: SUZUKI RYOICHI , OGAWA YUKIO , KAWASAKI KANAGAWA , KINOSHITA TAKAO , UCHIYAMA TAKASHI
Abstract: In the drive system disclosed, a first power source supplies a driving current to drive a moving member of an electromagnetic shutter driving device in one direction or in the reverse direction a second power source device consisting of a DC booster circuit, a capacitor, etc.; a photo-to-electric converter circuit discerns the brightness level of an object to be photographed and controls the outputs of the first and second power source devices to shift between these two outputs. An automatic change-over supplies the output of the second power source to the electromagnetic shutter driving device when the level of the output of the photo-to-electric converter circuit is equal to or above a predetermined level and supplies the output of the first power source to the electromagnetic shutter driving device when the output level of the photo-to-electric converter circuit is lower than the predetermined level.
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公开(公告)号:GB2195047A
公开(公告)日:1988-03-23
申请号:GB8719201
申请日:1987-08-13
Applicant: CANON KK
Inventor: OGAWA YUKIO , IKAWA KAZUO , SHOJI TORU , TAMAMURA HIDEO , NAKAYAMA HIROKI , MATSUSHITA TAKASHI
Abstract: A flash device for a camera of the kind using a miniature lamp type flash tube solves all the problems resulting from the use of the straight tube type flash tube. The disclosed arrangement of the flash device not only ensures an adequate light distributing characteristic in all the vertical and lateral directions but also permits reduction in size of an electronic flash unit.
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公开(公告)号:DE69423721T2
公开(公告)日:2000-08-03
申请号:DE69423721
申请日:1994-12-20
Applicant: CANON KK
Inventor: OGAWA YUKIO
Abstract: A camera or an apparatus adapted to use a film cartridge, or a unit applicable to the camera or the apparatus, includes a first member arranged to move the film cartridge at least for one of loading and unloading the film cartridge on or from the camera or the apparatus; and a second member arranged to prevent the first member from acting detrimentally at least on transportation of a film contained in the film cartridge.
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公开(公告)号:DE69423721D1
公开(公告)日:2000-05-04
申请号:DE69423721
申请日:1994-12-20
Applicant: CANON KK
Inventor: OGAWA YUKIO
Abstract: A camera or an apparatus adapted to use a film cartridge, or a unit applicable to the camera or the apparatus, includes a first member arranged to move the film cartridge at least for one of loading and unloading the film cartridge on or from the camera or the apparatus; and a second member arranged to prevent the first member from acting detrimentally at least on transportation of a film contained in the film cartridge.
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公开(公告)号:DE2942636A1
公开(公告)日:1980-06-04
申请号:DE2942636
申请日:1979-10-22
Applicant: CANON KK
Inventor: HIROHATA MICHIO , OGAWA YUKIO , TAGUCHI TETSUYA , KAWASAKI KANAGAWA
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公开(公告)号:JP2001318404A
公开(公告)日:2001-11-16
申请号:JP2000135023
申请日:2000-05-08
Applicant: CANON KK
Inventor: OGAWA YUKIO
Abstract: PROBLEM TO BE SOLVED: To solve the problem that there is possibility that a protection cover is lost in the case the protection cover must be temporarily detached from a camera main body at the time of photographing and at the time of non- photographing, and it is not easy for a photographer to handle the camera. SOLUTION: In this camera having the protection cover 2 attached to a camera main body 1 and covering over at least a lens front surface 3, the protection cover can be turned with respect to the camera main body centering a shaft parallel with a direction orthogonal to a lens optical axis between a closing position where it covers the lens front surface and an opening position where it exposes the lens front surface and goes round the back surface side of the camera main body and gets in an open state to the camera main body, and also can slide in parallel with the direction orthogonal to the lens optical axis between the opening position and a housing position where it is superposed on the back surface of the camera main body.
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