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US 5,049,908 AGranted
Photographic camera and film
AssigneeSony Corporation
InventorSusumu Murakami
Life of this patent
Estimating the term…
Abstract
A 35 mm-wide photographic film without any perforations typically used to transport this kind of film has one side of its rectangular effective photographic area in a widthwise direction made substantially 30 mm long, thereby widening this effective photographic area, so that the image quality is improved. A photographic camera using that 35 mm photographic film formed without perforations transports the photographic film accurately, and in which the position of the photographic film in its widthwise direction is defined and an image of an object is exposed to the effective photographic area of the photographic film.
Claims61
A photographic camera system using a 35 mm-wide photographic film in a cartridge comprising:
- a 35 mm-wide photographic film devoid of sprocket holes and having a quadrilateral effective photographic area of which one side in the width direction of the photographic film is selected to be substantially 30 mm long and being wound in a standard size 35-mm film cartridge;
- a camera body having a first accommodating portion formed in said camera body to accommodate the standard size 35-mm film cartridge and a second accommodating portion formed in said camera body to accommodate said photographic film supplied from the cartridge;
- transporting means provided in said camera body for transporting said photographic film between said first and second accommodating portions;
- guide means provided in said camera body for defining the position of said photographic film in its width-wise direction between said first and second accommodating portions and including two pairs of parallel film guide rails formed on a rearwardly facing inner surface of said camera body, a first one of said pairs of film guides being spaced apart by substantially 35-mm and extending rearwardly for a predetermined distance and a second one of said pairs of film guides being spaced apart by substantially 30-mm and extending rearwardly for a distance less than said predetermined distance;
- and
- exposing means provided in said camera body for exposing an image of an object to be photographed onto the effective photographic area of said photographic film guided by said guide means.
3 more elements
A photographic camera system using a 35 mm-wide photographic film comprising:
- a 35 mm-wide photographic film having a quadrilateral effective photographic area of which one side is substantially 30 mm long and detection elements arranged along one longitudinal edge thereof, said photographic film being devoid of sprocket holes;
- cartridge means for accommodating said photographic film being wound therein;
- a camera body having a first accommodating portion formed in said camera body for accommodating said cartridge means and a second accommodating portion formed in said camera body for accommodating said photographic film supplied from said cartridge means;
- transporting means provided on said camera body for transporting said photographic film between said first and second accommodating portions;
- means for detecting said detection elements as said film is transported for determining the amount of film transported by said transporting;
- guide means provided in said camera body for defining the position of said photographic film in the width-wise direction between said first and second accommodating portions and including first and second pairs of parallel film guide rails formed on an inner surface of said camera body, said first pair of film guide rails extending from said inner surface for a predetermined distance and said second pair extending for a distance substantially equal to said predetermined distance less a thickness of said photographic film;
- exposing means provided in said camera body and for exposing an image of an object to the effective photographic area of said photographic film guided by said guide means.
4 more elements
A photographic camera using a 35 mm-wide photographic film devoid of sprocket holes comprising:
- a camera body having first and second accommodating portions formed in said camera body for accommodating a 35 mm-wide photographic film devoid of sprocket holes;
- transporting means provided in said camera body for transporting the photographic film devoid of sprocket holes from said first accommodating portion to said second accommodating portion;
- a quadrilateral aperture formed in said camera body on a film transporting path between said first accommodating portion and said second accommodating portion, one side of which in a film-width direction is substantially 30 mm long, so as to form a quadrilateral effective photographic area, one side of which in the film-width direction is 30 mm long, in the photographic film extending along said film transporting path;
- and
- two pairs of parallel film guide rails formed on a rearwardly facing inner surface of said camera body, a first one of said pairs being outside of the other of said pairs and extending rearwardly for a first distance, a second one of said pairs being inside the other of said pairs and extending rearwardly for a distance less than said first distance, whereby said photographic film is guided by said two pairs of film guide rails.
2 more elements
A photographic camera using a 35 mm-wide photographic film devoid of sprocket holes comprising:
- a camera body having first and second accommodating portions formed in said camera body for accommodating a 35 mm-wide photographic film;
- transporting means provided in said camera body for transporting the photographic film from said first accommodating portion wherein a standardized 35-mm film cartridge containing the photographic film resides to said second accommodating portion;
- a quadrilateral aperture formed in said camera body in a film transporting path from said first accommodating portion to said second accommodating portion, one side of said aperture in the film-width direction is substantially 30 mm long so that a quadrilateral effective photographic area having alone side in the film-width direction that is 30 mm long is formed in the photographic film extending along said film transporting path;
- first and second pairs of parallel film guide rails formed on an inner surface of camera body, said first pair being outside said second pair of guide rails and extending from said inner surface for a predetermined distance greater than a distance that said second pair extends for guiding said photographic film therebetween;
- and
- recording means for recording information in an area between a longitudinal edge portion of the photographic film and an edge of said effective photographic area.
3 more elements
A film cartridge comprising:
- a photographic film of the kind that is 35 mm wide and devoid of sprocket perforations along both side edges of said film and having a quadrilateral effective photographic area whose one side in the film-width direction is substantially 30 mm long;
- and
- a single casing means for accommodating said 35 mm wide photographic film therein with a leader portion of the film protruding therefrom and being generally cylindrical in shape and having a lower protruding element for residing in a recess of a 35-mm camera and having an upper recess for engagement by a film rewind element of the 35-mm camera.
Dependencies are inferred from the claim text.