Canon Kabushiki Kaisha

Shosuke Haraguchi

Yoichi Tosaka

Masaharu Kawamura

Hideki Morishima

Ryoichi Yoshikawa

Masanori Uchidoi

Hidehiko Fukahori

Yoshihiro Shigeta

Masanori Ishikawa

Hiroshi Sakurai

Takanori Honda

Kenji Ito

Yoshihiko Aihara

Yoshiaki Sugiyama

Noboru Tanaka

Masakazu Taku

An optical apparatus having a viewfinder optical system includes a Fresnel lens capable of converging light onto a focusing screen and a plurality of microprism groups disposed in positions corresponding to focusing areas. Beams of light are projected onto each microprism group.

Optical apparatus

A viewfinder display apparatus which can realize superimpose having good visibility without giving uncomfortable feeling to a photographer is disclosed. The viewfinder display apparatus includes an eyepiece lens unit, an a member on which illumination unit which irradiates illumination light, and a plurality of region display sections arranged in a viewfinder optical path respectively to correspond to the focus detection regions. Each of the region display sections includes an outer frame which partially transmits light from an object to display edges of the focus detection regions in the viewfinder field and reflecting region in which reflecting surface which reflects illumination light from the illumination unit to guide the reflected light to the eyepiece lens unit are formed.

Viewfinder display apparatus

An apparatus adapted for use with a cartridge, e.g., in loading a cartridge in a camera, includes an engagement portion settable in either a first state or second state and engageable with a film cartridge loaded in a cartridge chamber, and a restriction device that either (1) restricts a loading operation of a cartridge into the cartridge chamber when the engagement portion is in the second state, or (2) restricts engagement of the cartridge with the engagement portion where the engagement portion is in the second state.

Apparatus for use in loading and unloading cartridge, including

A camera or an apparatus adapted to use a film cartridge, or a unit applicable to the camera or the apparatus, includes a first device for engaging the film cartridge, and a second device for at least one of loading and unloading the film cartridge with respect to the camera by automatically moving the first device together with the film cartridge.

Camera or apparatus adapted to use film cartridge or device applicable

An imaging field region display apparatus for switching an aspect ratio of the imaging field includes a first display device that displays a first imaging field region in which an imaging field display state changes in the first imaging field region and a second display device that displays a second imaging field region in which an imaging field display state changes in the second imaging field region, which differs from the first imaging field region, and displays a third imaging field region, which is at least one part of the first imaging field region. The second display device also causes a boundary between the second and the third imaging field regions to appear to be continuous.

Apparatus for switching an aspect ratio of an imaging field frame

An apparatus, such as a camera, adapted for a film having an information recording part, includes a recording device which records information on the information recording part of the film, an operation device which issues an instruction for rewinding the film, and a changing device which changes, in response to the film rewinding instruction issued by the operation device, the information recorded on the information recording part of the film by the recording device.

Camera having a facility for changing information recorded on film

An apparatus adapted to a film cartridge provided with an opening-and-closing cover comprises an operating portion which operates the opening-and-closing cover of the film cartridge by rotating, a driving portion which rotates the operating portion, and an elastic portion which is disposed at the driving portion and urges the operating portion selectively in a direction in which the driving portion rotates the operating portion.

Apparatus adapted to film cartridge provided with opening-and-closing

A camera adapted to use an image recording medium cartridge in which an image recording medium is contained or an apparatus adapted for this kind of camera includes a determination portion for determining whether the image recording medium contained in the image recording medium cartridge is already developed.

Camera adapted to film cartridge with a device to determine if image

A camera includes a camera mechanism including a charging member which makes a reciprocating motion between a charging position and a charging-cancelling position; a motor for moving the charging member from the charging-cancelling position to the charging position; a first driving mechanism for driving the charging member from the charging position to the charging-cancelling position; and a second driving mechanism for driving the charging member only in the initial stage of the process of moving the charging member from the charging position to the charging-cancelling position.

Camera

A camera includes a motor, a first planetary gear which revolves on the basis of an output rotation of the motor, a second planetary gear which revolves on the basis of the output rotation of the motor, a first camera operating mechanism which engages with the first planetary gear by the revolution of the planetary gear caused by a rotation of the motor in a first direction, a second camera operating mechanism which engages with the second planetary gear by the revolution of the second planetary gear caused by the rotation of the motor in the first direction, and a selector for selectively preventing the revolution of either of the first and second planetary gears. The selector selectively permits the operation of either of the first and second camera operating mechanisms during the rotation of the motor in the first direction.

A motor-driven camera includes a motor, a mirror driving mechanism which uses the output of the motor as a drive source and is arranged to move a movable mirror from a view-finder sight position to an exposure-allowing retracted position according to the rotation of the motor in a first direction and to bring the mirror back to the view-finder sight position according to the continuous rotation of the motor in the first direction, a film transporting mechanism which uses the motor output as a drive source and transports the film for a next frame photographing according to the motor rotation in a second direction, a clutch which performs a change-over action in such a way as to cause the motor output to be transmitted to the mirror driving mechanism according to the motor rotation in the first direction and to the film transporting mechanism according to the motor rotation in the second direction, and a control circuit which controls the motor rotation and is arranged to cause the motor to rotate in the first direction to retract the mirror to the exposure-allowing retracted position in response to a photographing initiating operation, to rotate also in the first direction, upon completion of an exposure, to bring the movable mirror back to the view-finder sight position and, after that, to rotate in the second direction to transport the film for a next frame photographing.

Single lens reflex camera

A motor-driven camera includes a motor, a mirror driving mechanism which uses the output of the motor as a drive source and is arranged to move a movable mirror from a view-finder sight position to an exposure-allowing retracted position according to the rotation of the motor in a first direction and to bring the mirror back to the view-finder sight position according to the continuous rotation of the motor in the first direction, a film transporting mechanism which uses the motor output as a drive source and transports the film for a next frame photographing according to the motor rotation in a second direction, a clutch which performs a change-over action in such a way as to cause the motor output to be transmitted to the mirror driving mechanism according to the motor rotation in the first direction and to the film transporting mechanism according to the motor rotation in the second direction, and a control circuit which controls the motor rotation and is arranged to cause the motor to rotate in the first direction to retract the mirror to the exposure-allowing retracted position in response to a photographing initiating operation, to rotate also in the first direction, upon completion of an exposure, to bring the movable mirror back to the view-finder sighter position and, after that, to rotate in the second direction to transport the film for a next frame photographing.

A camera incorporating a capacitor for flashing a flash device is arranged to have the capacitor disposed within a hollow portion of a film take-up spool, to have a power source battery accommodating space provided in the vicinity of the spool, and to have a motor which serves at least as a film transporting drive source disposed in the vicinity of a film cartridge stowing chamber.

Growing community of inventors

Kanagawa, Japan

Shosuke Haraguchi