Fujifilm Corporation

Fuji Photo Film Company, Limited

Katsuyoshi Asakura

Tomoyuki Takahashi

Osamu Matsuura

Kenji Kobayashi

Hiroshi Ohmura

Tetsuya Takatori

Katsumi Motomura

Kiichiro Kitagawa

Yasuhiro Yamashina

Mitsuru Shimizu

Toshiharu Naito

Hidefumi Obo

Takeshi Tamura

Masanobu Kihara

Kiichiro Kitakawa

Mikio Okajima

Ryuzi Uemura

A photosensitive-recording medium cartridge includes: a photosensitive recording medium; a cartridge body including: a disk housing portion; an internal opening; and a shutter sliding face; a shutter; and a locking mechanism having a locking member, wherein the cartridge body includes a positioning groove including: a shallow groove formed in a side face thereof in the opposite direction of a loading direction of the photosensitive-recording medium cartridge; and a deep groove which is formed deeper in the shallow groove, and the locking mechanism includes a lock canceling member having an operating portion which protrudes from the positioning groove, and pushes the operating portion into the cartridge body to allow cancellation of engagement between the locking member and the shutter.

Photosensitive-recording medium cartridge, and shutter lock canceling mechanism

A system for recording/reproducing a photosensitive recording medium, comprising: a photosensitive recording medium cartridge including a cartridge body, a shutter, and a lock mechanism as defined herein; and a recording/reproducing device including a housing, an insertion port shutter, an unlock mechanism, and a shutter opening mechanism as defined herein.

System for recording/reproducing photosensitive recording medium

A cartridgereceiving a photosensitive recording disctherein including: a cartridge bodyhaving inner openingsandexposing part of the recording discto the outside; a light-shield plateattached to the outside of the cartridge bodyand having outer openingsandwhich face the inner openingsand; and a shutteropening/closing the inner openingsandand the outer openingsandbetween the cartridge bodyand the light-shield plate; wherein recessesandfor inserting end edgesof the outer circumference of the light-shield plateare provided in light-shield plate attachment surfacesandof the cartridge bodyso that when the end edgesare inserted into the recessesandand attached to the cartridge body, a labyrinth-shaped light-shielding structure is formed.

Photosensitive recording medium cartridge

A photosensitive recording medium cartridge comprising a cartridge body, an opening, and a shutter, the cartridge body receiving a disc type photosensitive recording medium therein so that the photosensitive recording medium can rotate, the opening being provided in the cartridge body for exposing the photosensitive recording medium to an outside, the shutter being attached to the cartridge body so that the shutter can move between a close position for closing the opening and an open position for opening the opening, wherein: the shutter includes a bent portion which is formed in an outer circumferential end portion of the shutter so as to be bent toward the cartridge body side; and the cartridge body includes a protrusion portion which is formed in a position corresponding to the outer circumferential end portion.

A light shield platehaving outer openingsandis fixed to the outside of a cartridge bodyin which inner openingsandfor exposing a photosensitive recording mediumto the outside are formed. A shutterfor opening and closing the inner openingsandis incorporated movably between the cartridge bodyand the light shield plate. Closing-side endsandof the shutterand shutter-closing-side edgesandof the inner openingsandand/or shutter-closing-side edgesandof the outer openingsandare inclined from each other.

Cartridge for a photosensitive recording medium

A photosensitive recording medium cartridge comprising: a photosensitive recording medium; a cartridge body including a disc storage portion where the photosensitive recording medium is received rotatably, an opening portion formed in a side surface of the cartridge body in an insertion direction, shutter slide surfaces offset inward and formed in an outer surface of the cartridge body so as to be connected to the opening portion-side side surface, and an inner opening for exposing a center and a recording surface of the photosensitive recording medium to the outside; a shutter as defined herein; and a lid fixed to the side surface of the cartridge body so as to close the opening portion, wherein the shutter is attached to the shutter slide surfaces while the movement of the shutter is limited by the lid and first step portions formed in boundaries between the shutter slide surfaces and the outer surface.

Photosensitive recording medium cartridge with movement of shutter limited by lid and step portion and method for producing the same

An instant film pack includes a plurality of instant photo films. A case contains the instant photo films being stacked. An exit slot is formed in the case, for exiting the instant photo films to an outside of the case one after another. A claw path opening is formed in the case, for receiving insertion of an advancing claw mechanism for advancing the instant photo films by one photo film to move to the exit slot. A thrust preventing flap is disposed on an inside of the exit slot, for closing the exit slot at the middle, to prevent the instant photo films from coming through the exit slot. Furthermore, a light shielding sheet of aluminum foil closes the claw path opening in a light-tight manner, and is released to open the claw path opening upon advance of the advancing claw mechanism.

Instant film pack

Corner mask portions are provided at four corners of an exposure opening. The corner mask portions are formed by rounding the corners into curves. The quantity of developing solution contained in a developing solution pod is reduced, consequently, it is possible to reduce the thickness of a solution pod section and a trap section.

Instant film unit

A lens-fitted photo film unit contains a photo film cassette, which includes a spool for winding the photo film in a roll form thereabout. A body tube contains the photo film and the spool in a rotatable manner, has a first end with a first end opening, and a second end with a second end opening. A first end cap closes the first end opening, and has an outer diameter d. A second end cap closes the second end opening, has an outer diameter d, and satisfies a condition of:d&#x3c;d To contain the cassette, a cassette holder chamber in the lens-fitted photo film unit has a size corresponding to that of the cassette.

Lens-fitted photo film unit and cassette for photo film

A self-developing type of instant camera is equipped with a processing liquid spreading device comprising a pair of pressure-applying processing rollers which ruptures a processing liquid containing pod and distributes a processing liquid in a film unit, a spread controller operative to press and rubs the film unit from one side of the film unit coming out from a film pack so as to spread the processing liquid distributed in the film unit and a guide member, disposed between the spread controller and the film pack, operative to force the film unit from another side of the film unit so as to direct the film unit toward the bite of pressure-applying processing rollers.

Instant camera with improved processing liquid spreading device

An instant camera is used with a photo film pack, which includes plural photo film units of a self-processing type. Each of the photo film units includes a processing solution pod for containing processing solution. There is an exposure surface which is exposed by photographic subject light and on which the processing solution is spread for processing. A case contains a stack of the plural photo film units. A photo film outlet causes the photo film units to exit. The instant camera has a pack chamber loaded with the photo film pack. An exposure aperture is formed to open in one face of the pack chamber, and sets the exposure surface of the photo film units inside the photo film pack. A set of first and second spreader rollers press and convey an exposed one of the photo film units advanced from the pack chamber, and squeeze the solution pod to spread the processing solution on the exposure surface. A spread control wall is disposed between the photo film outlet and the spreader roller set, pushes the photo film unit advanced from the photo film outlet, and controls distribution of the processing solution on the exposure surface.

Instant camera

An instant film pack for use with an instant camera has a case, with a back wall and a front wall in which an exposure aperture is formed. 10 rectangular film units are stacked and contained in the case. The film units after exposure are exited through an outlet slot. Two access openings are formed in the back wall of the case, and receive entry of pads of the camera. A light-shielding sheet is contained between the back wall and the film units, closes the access openings openably, and prevents ambient light from entry through the access openings. The light-shielding sheet, pressed by the pads, presses the film units toward the exposure aperture. Two pressing curved ridges are projected from the back wall in an arcuate shape, and contact at least two lateral edges which are formed beside the light-shielding sheet, and directed toward the outlet slot. The pressing curved ridges prevent the film units from being depressed to a rear of the exposure aperture inside the case.

Growing community of inventors

Kanagawa, Japan

Katsuyoshi Asakura