Fuji Photo Film Company, Limited

Fujifilm Corporation

Junichi Takagi

Seiji Asano

Yukitsugu Hata

Keiji Uchiyama

Hiroshi Ohmura

Nobuyuki Kameyama

Takashi Imamura

Katsumi Motomura

Mitsuyoshi Mochida

Norio Hirasaki

Hiroshi Hara

Takuya Arai

Makoto Isozaki

Kazumi Koike

Hirofumi Katsura

Mitsuhiro Moriya

Takashi Tobioka

Chiaki Suzuki

Kazunori Ohno

Ko Aosaki

Manabu Tobise

Yukitaka Takeshita

Mutsumi Naruse

Hisashi Tasaka

Yasuhiro Yamashina

Hirokazu Yokoo

Katsuya Kozai

Akira Haishi

Takaji Kono

An image recording apparatus has a pack chamber loaded with an instant film pack which stores by stacking plural pieces of instant film sheets having an image recording section which is exposed and subjected to spreading of a developer to record an image and a developer pool provided on a front end side in a carrying direction from the image recording section, and that carries the instant film sheets stored in the instant film pack loaded in the pack chamber and that performs recording of the image on the instant film sheets, the image recording apparatus comprising: carrying rollers; an exposure section; developing rollers; a carrying roller holding section; and a developing roller holding section.

Image recording apparatus

The invention relates to a camera provided with a main body portion, and a lens camera cone freely sunk and reeled out in accordance with a manual operation, and improve an operability of manually reeling out the lens camera cone and manually sinking the lens camera cone. The camera is provided with a positioning means for positioning the lens camera cone at a predetermined reel-out position at a time when the lens camera cone is reeled out and positioning the lens camera cone at a predetermined sinking position at a time when the lens camera cone is sunk, and an energizing means for energizing the lens camera cone toward the reel-out position at a time when the lens camera cone exists in a portion near the reel-out position, and energizing the lens camera cone toward the sinking position at a time when the lens camera cone exists in a portion near the sinking position.

Camera

A camera includes a lens barrel capable of extending and collapsing in which when the lens barrel is extended, exposures are possible. The camera includes an aperture member in which any one of a plurality of aperture values can be selected, an aperture set up handler varying a position based on the aperture value, and a coupling member for mechanically coupling the aperture member with the aperture set up handler to transmit the position of the aperture set up handler to the aperture member so that said aperture member is set up to an aperture value according to the position of the aperture set up handler. The aperture member returns to an original setting when the lens barrel is collapsed. The aperture set up handler returns to a position to set up the aperture member to the original setting in accordance with the collapse operation of the lens barrel.

Camera utilizing an aperture set up handler

In a flash circuit of a flash device, a Zener diode ( ) is connected to a tap point ( ) located at an intermediate position of a secondary coil of an oscillation transformer ( ). The oscillation transformer ( ) and an oscillation transistor ( ) constitutes an oscillation circuit. A potential at the tap point ( ) changes proportionally to a voltage charged in a main capacitor ( ). When the main capacitor ( ) is charged up to a set voltage, the Zener diode ( ) conducts a Zener current, which activates a stopping transistor ( ) and thus deactivates the oscillation circuit. When a flash charge switch ( ) is turned on, an end of a light guide portion of a charge condition indicator ( ) protrudes out of a lens-fitted film unit. When the main capacitor ( ) is charged up to the set voltage, a light emission element starts lighting and the light from the light emission element is projected from the end of the light guide portion.

Flash unit

Photo film has plural perforation sets arranged along one edge thereof in line at a regular pitch. Each of the perforation sets includes first and second perforations, which are arranged closely at a regular distance. A sprocket wheel is rotated by movement of the photo film. The sprocket wheel has a wheel body. Two tooth sets respectively include first and second teeth, are disposed to protrude from a peripheral face of the wheel body, and are respectively meshed with the first and second perforations serially. An arm is disposed on the peripheral face of the wheel body, for frictionally contacting a portion of the photo film between first and second perforation sets, to be rotated by the photo film. The first and second perforation sets are included in the plural perforation sets and adjacent to each other. Each of the tooth sets are meshed with the second perforation set after being disengaged from the first perforation set.

Lens-fitted photo film unit and sprocket wheel for the same

In a flash circuit of a flash device, a Zener diode ( ) is connected to a tap point ( ) located at an intermediate position of a secondary coil of an oscillation transformer ( ). The oscillation transformer ( ) and an oscillation transistor ( ) constitutes an oscillation circuit. A potential at the tap point ( ) changes proportionally to a voltage charged in a main capacitor ( ). When the main capacitor ( ) is charged up to a set voltage, the Zener diode ( ) conducts a Zener current, which activates a stopping transistor ( ) and thus deactivates the oscillation circuit. When a flash charge switch ( ) is turned on, an end of a light guide portion of a charge condition indicator ( ) protrudes out of a lens-fitted film unit. When the main capacitor ( ) is charged up to the set voltage, a light emission element starts lighting, and the light from the light emission element is projected from the end of the light guide portion.

A lens-fitted photo film unit has an electronic flash device (11, 30; 115) with a printed circuit board (173). The flash device includes a flash-emitting section (6, 170) for emitting flash light toward a photographic field, and a main capacitor (31, 155) for storing charge to be discharged in the flash-emitting section. The printed circuit board converts a current of a battery (12, 127) into a current of high voltage to be supplied to the main capacitor. The printed circuit board has a transistor (13, Tr1) for oscillation. A primary winding (15) has one end connected to the battery, and another end connected to a collector of the transistor. A secondary winding (16) is combined in mutual induction with the primary winding, has one end connected to the main capacitor, and another end connected to a base of the transistor. A tertiary winding (17) is combined in mutual induction with the secondary winding, has one end connected to the battery, and another end connected to the base of the transistor. An LED (21, 180) has a cathode connected to the one end of the tertiary winding with the battery, and an anode connected to the another end of the tertiary winding opposite to the battery. The LED is driven to emit light in response to charging of the main capacitor at a predetermined level. In a preferred embodiment, the photo film unit is pre-loaded with photo film (123) having speed of ISO 800 or higher, to allow the main capacitor to have small capacitance adapted to the high speed of the photo film.

Lens-fitted photo film unit and electronic flash device for use therewith

A lens-fitted photo film unit has an electronic flash device (11, 30; 115) with a printed circuit board (173). The flash device includes a flash-emitting section (6, 170) for emitting flash light toward a photographic field, and a main capacitor (31, 155) for storing charge to be discharged in the flash-emitting section. The printed circuit board converts a current of a battery (12, 127) into a current of high voltage to be supplied to the main capacitor. An LED is driven to emit light in response to charging of the main capacitor at a predetermined level. The flash-emitting section is arranged to be slidably disposed on said printed circuit board.

A lens-fitted photo film unit has an electronic flash device with a flash circuit board. The flash device includes a flash-emitting section for emitting flash light toward a photographic field, and a main capacitor for storing charge to be discharged in the flash-emitting section. The flash-emitting section and main capacitor together constitute a flasher/capacitor unit. In one embodiment, a detachable connector, providing both the electrical connection and the mechanical support, connects the flasher/capacitor unit to the flash circuit board. In another embodiment, a securing portion comprising a pair of rails disposed on the flasher/capacitor unit, secures the flasher/capacitor unit to the flash circuit board, where the rails ride along opposite sides of a projecting portion of the flash circuit board.

A lens-fitted film unit equipped with a built-in electronic flash device having a printed wiring board, formed with a flash circuit thereon and an aperture therein, which is located between a film roll receiving chamber located on one side of an exposure mechanism unit and a front casing section so as to receive partly the film roll receiving chamber in the aperture.

Narrow profile lens-fitted film unit

A lens-fitted photographic film package with a flash unit and a viewfinder optical system, which is thin and contributes to effective and economical automatic recycling operations. The taking lens system of the film package is accommodated in a lens holder incorporated in a photo-taking unit having photo-taking mechanisms, and is held immovably in the lens holder by a lens cover removably fitted on the lens holder by snap-in engagement. The viewfinder optical system is also incorporated in the photo-taking unit. The photo-taking unit is removably attached to a main body of the film package, and the flash unit is removably attached to the main body with its printed circuit board disposed between the photo-taking unit and a front surface of a film supply chamber. A light emitting portion of the flash unit is secured to a lateral side of the printed circuit board, so as to be disposed above the film supply chamber. A metal blade constituting a flash charging switch is removably attached to the outside of the film supply chamber. A front cover is removably attached to the main body so as to cover the front and top of the main body, the photo-taking unit and the flash unit.

Lens-fitted photographic film package

A lens-fitted photographic film unit is provided with a motor for rotating a spool to wind up photographic film one frame after each exposure. The motor is supplied with a single cell which may be commonly used for charging a flash unit. The rotational movement of the motor is transmitted to the spool through a speed-reduction gear mechanism which reduces the rotational speed at ratios between 100:1 and 280:1. The motor and the gear mechanism are removably mounted in a frame as a motor unit, and the motor unit is removably attached to a main body of the film unit beside a take-up chamber. Forwardly convex contacting portions are exposed to a front portion of the motor unit. The cell is mounted between contact plates having forwardly convex contacting portions. A motor drive switch for controlling start and stop of the motor also has forwardly convex contacting portions exposed to a front side thereof. These contacting portions are pressed against conductive layers formed on the inner surface of a front cover of the film unit so as to provide a film winding circuit.

Lens-fitted photographic film unit with film winding motor

A panoramic lens-fitted photographic film package with a flash unit. A charge switch of the flash unit is actuated by depressing or sliding a charge switch plate which is formed in one of a pair of grips disposed on the front wall of the film package. A synchro-flash switch of the flash unit includes first and second contact segments extending parallel to each other toward a between-lens-shutter mechanism. The first contact segment is depressed by an arm portion formed integrally on a connecting lever of the shutter mechanism when the connecting lever is struck by an actuating lever to move a shutter blade to open an exposure opening, upon a shutter release operation being effected. The depressed first contact segment is brought into contact with the second contact segment, thereby outputting a synchro-flash signal. A light projector of the flash unit has a discharge tube, a reflector and a diffusion plate. The reflector is formed by shearing and folding a sheet material, and has splayed side reflection surfaces adapted to increase the horizontal illuminating angle. The diffusion plate is adapted to limit the vertical illuminating angle.

Growing community of inventors

Kanagawa, Japan

Junichi Takagi