Back to results
US 5,739,849 AGranted
Electro-developing recording medium upon which an image is sensed
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorsHarumi Aoki, Tahei Morisawa
Life of this patent
Estimating the term…
Abstract
An image signal generating device has an electro-developing recording medium to electronically develop an image formed by a photographing optical system. A sub-scanning mechanism supporting a light source, a scanner optical system and a line sensor is disposed close to the electro-developing recording medium. The scanner optical system is provided on a path of a light beam which is outputted from the light source and passes through the electro-developing recording medium. The line sensor is moved on an imaging plane on which an image is formed by the scan optical system, to scan the image. The pixel signals corresponding to the image are read out from the line sensor while the line sensor scans the image.
Claims25
An image signal generating device, comprising:
- a first optical system;
- an electro-developing recording medium that electronically develops an image formed by said first optical system;
- a shutter positioned between said first optical system and said electro-developing recording medium, said shutter being selectively openable;
- a light source that illuminates said electro-developing recording medium, said light source being selectively positioned between said first optical system and said shutter;
- a second optical system disposed on an optical path of a light beam generated by illuminating said electro-developing recording medium;
- a sensor that is moved to an imaging plane on which an image is formed by said second optical system, said sensor generating a pixel signal in accordance with said formed image;
- a sub-scanning mechanism that moves said sensor on said imaging plane to sense said image;
- and
- a reader that reads out said pixel signal from said sensor, wherein a light beam emitted by said light source passes through said shutter, when said shutter is opened, to illuminate said electro-developing recording medium to develop said image formed by said first optical system, said sensor being moved, by said sub-scanning mechanism, to sense said image developed on said electro-developing recording medium after said shutter is opened.
6 more elements
An image signal generating device, comprising:
- a first optical system;
- an electro-developing recording medium that electronically develops an image formed by said first optical system;
- a shutter positioned between said first optical system and said electro-developing recording medium, said shutter being selectively openable;
- a light source that illuminates said electro-developing recording medium, said light source being selectively positioned between said first optical system and said shutter;
- a second optical system disposed on an optical path of a light beam passing through said electro-developing recording medium;
- and
- a line sensor that moves in an imaging plane on which an image is formed by said second optical system, and outputs a pixel signal in accordance with said image, wherein a light beam emitted by said light source passes through said shutter when said shutter is opened to illuminate said electro-developing recording medium to develop said image formed by said first optical system, said line sensor being moved to sense said image developed on said electro-developing recording medium after said shutter is opened.
4 more elements
A camera in which an electro-developing recording medium is mounted, said camera comprising:
- a photographing optical system that forms an object image onto said electro-developing recording medium;
- an exposure controller that controls an exposure of said electro-developing recording medium;
- a developing controller that outputs a recording medium activating signal by which said object image is formed in said electro-developing recording medium;
- a first commander that commands a start of operations of said exposure controller and said developing controller;
- a reading device that reads optical image information formed on said electro-developing recording medium which corresponds to said object image, for converting said optical image information to electronic information, and for outputting said electronic information;
- and
- a second commander that commands said reading device to start predetermined operations, wherein said exposure controller comprises a shutter, positioned between said photographing optical system and said electro-developing recording medium, that selectively enables a light beam associated with said object image to impinge said electro-developing recording medium to form said object image onto said electro-developing recording medium, said reading device having a light source that illuminates said electro-developing recording medium after said object image is formed in said electro-developing recording medium, said light source being positioned between said photographing optical system and said shutter.
4 more elements
A camera, comprising:
- an electro-developing recording medium;
- a photographing optical system that forms an optical image onto said electro-developing recording medium;
- a shutter disposed between said photographing optical system and said electro-developing recording medium;
- a light source that illuminates said electro-developing recording medium, said light source being selectively disposed between said photographing optical system and said shutter;
- a photoelectric conversion device that photoelectrically converts an optical image signal to an electronic signal and outputting said electronic signal, said photoelectric conversion device comprising a line sensor;
- a reading optical system that forms said optical image formed on said electro-developing recording medium onto a light receiving surface of said photoelectric conversion device;
- and
- an image signal generator that generates an image signal corresponding to said optical image formed on said electro-developing recording medium based on said electronic signal outputted from said photoelectric conversion means, said image signal generator performing a main scanning operation in which a main scan is carried out along a longitudinal direction of said line sensor, said image signal generator performing a sub-scanning operation in which said line sensor is moved in a direction different from said longitudinal direction along said electro-developing recording medium, whereby a two dimensional optical image on said electro-developing recording medium is read out to generate an image signal corresponding to said optical image, said image signal generator having a moving member movable in a direction different from said longitudinal direction of said line sensor and along said electro-developing recording medium, said line sensor, said reading optical system and said light source being attached to said moving member in such a manner that said electro-developing recording medium is located between said line sensor and said reading optical system.
5 more elements
Dependencies are inferred from the claim text.