公开(公告)号：US4853731A

公开(公告)日：1989-08-01

申请号：US232327

申请日：1988-08-12

申请人： Masao Tsujimura ,  Masamichi Hirooka ,  Kazuo Ishikawa ,  Takayoshi Morooka ,  Masaki Noda ,  Mamoru Akiyama ,  Nobuaki Murai ,  Seiji Yoshikawa

发明人： Masao Tsujimura ,  Masamichi Hirooka ,  Kazuo Ishikawa ,  Takayoshi Morooka ,  Masaki Noda ,  Mamoru Akiyama ,  Nobuaki Murai ,  Seiji Yoshikawa

IPC分类号： G02B7/36

CPC分类号： G02B7/36

摘要： An autofocus camera has a photographing lens, a shutter normally urged in a shutter opening direction and arranged to be opened and closed after it has once been closed prior to a photographing operation, a mirror movable between a view position which allows light passing through the lens and the shutter to be transmitted to a viewfinder optical system and an exposure position which allows light passing through the photographing lens and the shutter to be transmitted to the surface of a film, and an automatic focus adjustment apparatus for automatically adjusting the position of the lens. The autofocus camera has a motor-drive control circuit arranged to close the shutter prior to a photographing operation, move the mirror from the view position to the exposure position, cause the shutter to be opened and closed for exposure of the film, cause the film to be wound immediately after completion of the operation of the shutter, move the mirror from the exposure position to the view position, cause the shutter to be opened after the winding of the film has temporarily been stopped, and restart the winding of the film.

摘要翻译： 自动对焦照相机具有拍摄镜头，通常在快门打开方向上被推动的快门，并且被布置成在拍摄操作之前一旦被关闭之后被打开和关闭，镜子可在允许光穿过镜头的视角之间移动 并且要被传送到取景器光学系统的快门和允许通过拍摄镜头和快门的光透射到胶片表面的曝光位置，以及用于自动调节透镜位置的自动对焦调节装置 。 自动对焦摄像机具有电动机驱动控制电路，该电动机控制电路被布置为在拍摄操作之前关闭快门，将反射镜从视点位置移动到曝光位置，导致快门被打开和关闭以使胶片曝光，导致胶卷 在快门操作完成后立即进行卷绕，将反射镜从曝光位置移动到观看位置，使得在胶片的卷绕暂时停止之后使快门打开，并重新开始胶卷的卷绕。

公开(公告)号：US4875065A

公开(公告)日：1989-10-17

申请号：US155316

申请日：1988-02-12

申请人： Takayuki Kubodera ,  Shizuo Nakamura ,  Masanori Onizawa ,  Hirotaka Shiroshita ,  Eiichi Mochizuki ,  Masao Tsujimura ,  Toshikatsu Atsuta ,  Takayoshi Morooka

发明人： Takayuki Kubodera ,  Shizuo Nakamura ,  Masanori Onizawa ,  Hirotaka Shiroshita ,  Eiichi Mochizuki ,  Masao Tsujimura ,  Toshikatsu Atsuta ,  Takayoshi Morooka

IPC分类号： G03B17/02 ,  G03B19/12

CPC分类号： G03B17/02 ,  G03B19/12

摘要： In a camera whose camera body is extended along the optical axis, the camera body has a camera body gripping recess at a position where the index, middle, ring and little fingers ae placed when the operator holds the camera with the hand from below so that the operator can hold the camera stable with the hand for a long period of time.

摘要翻译： 在相机体沿着光轴延伸的相机中，当操作者用手从下方握住相机时，照相机主体具有在索引，中间，环和小手指放置的位置处的照相机主体夹持凹部，使得 操作者可以长时间用手握住相机的稳定性。

公开(公告)号：US4896951A

公开(公告)日：1990-01-30

申请号：US212879

申请日：1988-06-29

申请人： Toshikatsu Atsuta ,  Hirotaka Shiroshita ,  Naohiro Hisamoto ,  Takayuki Kubodera ,  Kazuo Ishikawa ,  Masao Tsujimura ,  Eiichi Mochizuki

发明人： Toshikatsu Atsuta ,  Hirotaka Shiroshita ,  Naohiro Hisamoto ,  Takayuki Kubodera ,  Kazuo Ishikawa ,  Masao Tsujimura ,  Eiichi Mochizuki

IPC分类号： G02B7/04

CPC分类号： G02B7/04

摘要： The present invention relates to a lens mount assembly for use in photographic camera, video camera and other various optical instruments. Usually, electric drive units for focussing and zooming, respectively, are gear-coupled to such lens mount assembly and drive torque from these drive units often causes deviation, deflection and eccentricity of the lens mount assembly, and additionally causes unreliable gear-coupling of the drive units and deteriorated image forming capability of the optical systems. The present invention provides a barrel supporting mechanism adapted to slidably support a front section of the lens mount assembly in order to overcome these problems. The present invention further provides the lens mount assembly with a simplified dust-proof mechanism utilizing a floating ring.

摘要翻译： 本发明涉及一种用于照相机，摄像机和其他各种光学仪器的镜头安装组件。 通常，用于聚焦和变焦的电驱动单元分别齿轮耦合到这种透镜安装组件，并且来自这些驱动单元的驱动扭矩通常引起透镜安装组件的偏离，偏转和偏心，并且还引起不可靠的齿轮联接 驱动单元和光学系统的图像形成能力下降。 本发明提供了一种适于可滑动地支撑透镜安装组件的前部以便克服这些问题的镜筒支撑机构。 本发明还提供了一种利用浮动环的简化防尘机构的透镜安装组件。