Nikon Corporation

Nippon Kogaku K.k.

Koichi Daitoku

Akira Ezawa

Kazuyuki Kazami

Tsutomu Wakabayashi

Hiroshi Wakabayashi

Toshiyuki Nakamura

Tetsuro Goto

Hideya Inoue

Hidenori Miyamoto

Naoki Tomino

Yoshio Imura

Daiki Tsukahara

Toshio Sosa

Nobuo Okabe

Yoshio Matsuzawa

Kazuto Ohtsuka

Hidemori Miyamoto

Hiroshi Hasegawa

Noriyasu Kotani

Junichi Omi

Masaaki Yanagisawa

Sakuji Watanabe

Masanori Ichikawa

Yuji Katano

Makoto Kimura

Toshiaki Hozumi

Nobuhiko Terui

Nobuo Matsukawa

Shigeo Akasaka

Kenji Ishizuki

Mikihito Furuya

Shuji Kimura

Shiro Sugimori

Masamichi Wada

Yoshio Sekine

Manabu Nakamura

Kenji Sekine

Yukio Hyodo

Kazuyuki Kazumi

Hatsuo Sakamoto

Takeo Komai

Tsuyoshi Kudo

Nobuaki Nakanishi

Kazuto Otsuka

Kazyuki Kazami

A film feeding device for a camera uses first and second electric motors associated with first and second planetary gearing mechanisms, respectively. In one embodiment, the first motor and first planetary gearing mechanism drive a spool shaft of a film cartridge to supply film to a winding spool. The winding spool is driven by the second motor and second planetary gearing mechanism to wind film onto the winding spool, at which time the first motor is stopped and the first planetary gearing mechanism is automatically disconnected from the spool shaft. For rewinding, the second motor is operated in reverse and the second planetary gearing mechanism is automatically disconnected from the winding spool and connected to the spool shaft of the film cartridge. In a second embodiment, the first motor and the first planetary gearing mechanism are employed to drive the spool shaft of the film cartridge in a film supply direction or a film rewind direction, and the second motor and the second planetary gearing mechanism are only used to drive the winding spool in a film winding direction.

Film feeding device for camera

A camera includes a cartridge chamber in which a film cartridge is loaded, a spool chamber in which a take-up spool is mounted, and an aperture disposed between the cartridge the chamber and the spool chamber. The camera has a mechanism which feeds film out of the cartridge by rotating a spool shaft of the cartridge loaded in the cartridge chamber, and leads the film past the aperture to the take-up spool. The camera is further provided with a cartridge cover for concealing the cartridge chamber when it is closed and for exposing the cartridge chamber when it is open. A rear cover which is openably mounted on the rear side of the camera body, conceals the aperture and the spool chamber when it is closed and exposes the aperture and the spool chamber when it is open.

Camera with both removable aperture and spool chamber cover and

Multi-motor film feeding device with planetary gearing

A camera capable of trimming photographing has an electric-powered zoom lens, an operating device for zooming the electric-powered zoom lens, a trimming photographing device for obtaining a pseudo zoomed-up photography by partially trimming a photographed picture at a trimming magnification .beta. which can be previously set, and a control device which sets the trimming magnification .beta. of the trimming photographing device to a maximum trimming magnification .beta.max if the operating device is moved to the zoom-up side when the electric-powered zoom lens is at the position of a maximum focal length FT, which zooms down the electric-powered zoom lens while maintaining the maximum trimming magnification .beta.max if the operating device is thereafter operated to the zoom-down side, and which changes the trimming magnification .beta. of the trimming photographing device from the maximum trimming magnification .beta.max to 1 if the operating device is further operated to the zoom-down side when the electric-powered zoom lens is at the position of a minimum focal length FW.

Zoom lens camera capable of trimming photographing with plural

Camera capable of trimming photographing and having zoom finder with

An information recording/reproduction apparatus for a camera includes a magnetic reading unit which can contact a magnetic recording medium arranged in advance on a film, and a drive control unit for, when the magnetic reading unit reaches a predetermined position with respect to the film, bringing the magnetic reading unit into contact with the magnetic recording medium.

Information recording/reproduction apparatus for camera

A film feeding apparatus in a camera comprises a feeding device for feeding film from a film cartridge, a take-up spool device for taking up the film fed by the feeding device, and a judgment device for judging on the basis of a variation in the movement speed of the film whether the film has been taken up by the take-up spool. The movement speed of the film is determined by the feeding device before the film extending from the film cartridge is taken up by the take-up spool device, and the movement speed of the film is determined by the take-up spool device after the film has been taken up by the take-up spool device. The movement speed of the film driven by the feeding device differs from the movement speed of the film driven by the take-up spool device.

Film feeding apparatus in a camera

A camera has a magnetic head for data recording and reproduction disposed in opposed relationship with a data recording portion provided on film loaded into the camera and adapted to be biased against the film, a pad for pushing the film into contact with the fore end surface of the magnetic head, and a positioning portion formed on the magnetic head. Further, a reference surface is formed in opposed relationship with the positioning portion and bears against the positioning portion to thereby position that surface of the magentic head which contacts with the film at a position in which no deformation is caused in the film. As the reference surface, use may be made of an outer film guild rail which is originally provided in the camera.

Camera having a magnetic head

A film feed control device of a camera in a prewind method in which unexposed film is pulled out from a loaded film cartridge and rewound into the film cartridge for each photography comprises a frame number memory for storing an exposable frame number of said film, a frame counter for counting a feed frame number by detecting the perforations of said film, a pulled-out film length detector for detecting that said exposable frame number of frames are pulled out from said film cartridge, based on said feed frame number counted by said frame counter and said exposable frame number stored in said frame number memory, and a film feed control for controlling the film feed so as to pull out said film by a predetermined amount even after the pull-out of the exposable frame number is detected, and then to oppose the first frame to be set at a predetermined position of said film to an aperture by reversing the film feed direction, when unexposed film is pulled out prior to photographing.

Prewind film feed control device that ensures alignment of film frame

This invention relates to cameras operable to select one film supply system from either a normal wind-up system or a preparatory wind-up system. The camera has a selector switch for selecting one of the film supply systems, and an inhibiting means for inhibiting that the two systems are applied to one film by the switch, a write means for recording selected information onto a film or a storage device provided in the cartridge, and a read means for reading the selected information and the frame information written in the device. The switch selects a film supply system which is indicated by the selected information read out from the device of the loaded film by the read means. Additionally, a film supply means is provided for preparing and supplying the film in accordance with the frame information read out by the read means. The film supply means can wind up the film to supply even when either of the two film supply systems is set. The selection of the film supply system can be changed by the switch only before the first frame is photographed. A counter is provided for inhibit that the first frame of the film is supplied to the photographing position more than predetermined times in response to the change in the film supply system selected by the switch.

Camera having different supply modes selectable for a film

A winding/rewinding apparatus for a camera comprises a winding spool on which a film advanced thereto is wound when the winding spool rotates; a rewinding shaft for engaging a spool of a film cartridge loaded into the camera so as to rotate the spool; a motor; a transmission for transmitting the drive force of the motor to the winding spool and the rewinding shaft so as to advance the film from the cartridge to the winding spool, the transmission transmitting the drive force of the motor so that a speed at which the film is advanced by the rewinding spool is higher than a speed at which the film is advanced by the rewinding shaft; and a clutch which disengages so as not to transmit the drive force of the motor to the rewinding shaft when the rewinding shaft is driven at an increased speed by the film which is being wound by the winding spool.

Winding/rewinding apparatus and method for a camera

There is disclosed a device for preventing the camera shaking, provided with a light metering circuit for receiving the light from an object and releasing luminance signal corresponding to the luminance of the object; a detection circuit for detecting the camera shaking at phototaking operation; a counter for counting the number of phototaking operations identified as involving camera shaking and the number of phototaking operations identified as not involving camera shaking; a discriminator for comparing the above-mentioned numbers and discriminating the relation of the numbers; and an exposure control circuit for varying the shutter time, calculated from the luminance signal, to a shorter shutter time if the count of phototaking operations identified, by the discriminator, as involving camera shaking is larger than the count of phototaking operations identified as not involving camera shaking.

Camera shaking prevention device and camera shaking warning device

A trimming camera in which, in response to setting of a trimming mode, trimming photography (pseudo panorama or pseudo telephoto) is established and trimming information is recorded. In one embodiment a variable focal length lens is driven to a shortest or longest focal length in response to the setting of a trimming mode. In another embodiment, a conversion lens is placed in the optical path of a photographic lens in response to the setting of a trimming mode, and trimming information is recorded.

Trimming camera

Growing community of inventors

Sagamihara, Japan

Koichi Daitoku