Minolta Camera Kabushiki Kaisha

Minolta Camera Co., Ltd.

Kunio Kawamura

Norio Ishikawa

Takeshi Egawa

Masaaki Nakai

Akihiko Fujino

Shuji Izumi

Nobuyuki Taniguchi

Yasuaki Akada

Masatake Niwa

Hiroshi Ootsuka

Hiroyuki Okada

Sadafusa Tsuji

Michihiro Iwata

Masayasu Hirano

Masaaki Chikasaki

Hiroshi Ueda

Manabu Inoue

Yuji Takarabe

Hiromu Mukai

Toshihiko Karasaki

Toshihiko Taniguchi

Keiji Yamazaki

Takashi Iida

Mitsuo Yasukuni

Yasuo Hawai

Tetsuro Oya

Hiroshi Kiten

Norio Beppu

Norihiro Inoue

Horoshi Ueda

Yuziro Suzuki

Nobuo Yoshida

A camera using a film cartridge in which whether the film is exposed or unexposed can be distinguished by the phase of rotation of a shaft to rewinding a film, wherein said camera comprising: a film chamber to receive the film cartridge, a lid of the film chamber to capable of receiving the film cartridge in the film chamber when the lid is opened, a driving member which is connected with the shaft of the film cartridge and for driving the shaft, and a block member for blocking opening of the lid of the film chamber when the driving member is not the phase of rotation corresponding to the phase of rotation of the shaft in which the film is exposed.

Rewinding device for cameras

A film feeding apparatus of a camera using a film having two perforations in each frame. A perforation detecting lever has claws spaced at a predetermined distance apart from each other so that the distance therebetween is equal to the distance between the two perforations which are adjacent to each other across the boundary between frames. The perforation detecting lever engages the perforations and disengages therefrom in unison with an operation for feeding one frame to be performed after the proceeding frame is exposed to light. As a result, film feeding is allowed to proceed until both claws simultaneously engage two respective perforations in the film which occurs after the film has advanced one frame.

Apparatus for feeding photographic film having two perforations per frame

A camera which includes a film cartridge whose spool is adapted to be set in different rotational positions with respect to a film cartridge main body between unused state and used state of the film cartridge, and a camera body having a film cartridge accommodating portion, and is arranged to show that the film cartridge is in the used state when the used film cartridge is inserted in the accommodating portion of the camera body. The film cartridge is provided with shaped portions having different shapes from each other corresponding to the two rotational positions, while the film cartridge accommodating portion of the camera body is provided with an ejecting member, a detecting member for detecting the state of use of the film cartridge through its movement controlled by the differently shaped portions of the film cartridge upon insertion of the film cartridge into the film cartridge accommodating portion, and a display member for detection to be shown at a predetermined position in responsive movement to the detecting member, upon detection that the film cartridge is in the used state by the detecting member.

Film cartridge accommodating device which prevents previously used

Film cartridge accomodating device which prevents previously used

A camera system being comprised of a camera and an external device is disclosed. The external device is detachably mounted on the camera which memorizes a program or data necessary for executing a program therein. When the external device is mounted on the camera, they are connected electrically with each other and communicate therebetween in order to read a program or data memorized in the external device into a memory means provided in the camera. The camera is controlled according to the program designated by the external device.

Camera system

A camera system with an auto-focusing system includes a camera body and an interchangeable zoom lens. The interchangeable objective lens stores various data to be sent to the camera body for improving automatic focus adjustment, such as an information necessary to convert the detected defocus information into a movement of the driving power source to carry out the automatic focus adjustment. The driving power source in the camera body is controlled in response to the data from the interchangeable objective lens and the detected focus information, the driving power being transmitted to the interchangeable objective lens. The camera body is further capable of inhibiting the focus adjustment or focus indication in response to a data from the interchangeable objective lens under an unfavorable condition.

Camera system capable of automatic focus control

A camera system with an auto-focusing system includes a camera body and an interchangeable zoom lens. The interchangeable objective lens stores various data to be sent to the camera body for improving automatic focus adjustment, such as an information necessary to convert the detected defocus information into a movement of the driving power source to carry out the automatic focus adjustment. The driving power source in the camera body is controlled in responses to the data from the interchangeable objective lens and the detected focus information, the driving power being transmitted to the interchangeable objective lens. The camera body is further capable of inhibiting the focus adjustment or focus indication in response to a data from the interchangeable objective lens under an unfavorable condition.

Camera system having the plurality of manually settable parameters for

A display device for use in a camera comprises a central processing unit and display units to display exposure data and various control modes under the control of the CPU. The display units are arranged to display the exposure data with suitable marks or characters in rows so as to make the operator to read the display easily. The CPU provides control data to deenergize the display unit at the time of initial states of the camera such as at the time of loading a battery in the camera to prevent to display confusing information.

Display device for use in a camera

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Sakai, Japan

Kunio Kawamura