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7391542 |
Optical scanning apparatus, and image forming apparatus using the same
Disclosed in an optical scanning apparatus which includes a deflecting unit comprised of a rotary polygon mirror for deflecting a light beam radiated from a light source unit, and a scanning...
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7271938 |
Method and apparatus for optical scanning capable of efficiently reducing an image surface distortion
An optical scanning apparatus includes mechanisms for light modulation, light imaging, light deflecting, and light scanning. The light modulation mechanism includes at least one light modulation...
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7173234 |
Method reading apparatus and control method thereof having an illumination unit
The deterioration of read-image quality caused by LED color-tone variations is suppressed in a case in which a white-color LED illumination module is used as a light source of a color-image reading...
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6985268 |
Image capturing apparatus
Disclosed is an image capturing apparatus comprising a primary mirror 1 that has a surface which is a section of a surface cut out from a paraboloid with a single focus; a secondary mirror 2 that...
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6906832 |
Image forming apparatus with function of tilt adjustment to laser-beam reflecting mirror
An image forming apparatus has functions of tilt adjustments to a mirror for reflecting a laser beam and outputting an image after registration of a plurality of images. The apparatus includes a...
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6815127 |
Method of electronic processing of imagewise exposed photoconductive material imaging element
A method of electronic processing of an imagewise exposed dispersed particle photoconductive material imaging element employing pulsed radiation and radio frequency photoconductivity apparatus...
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6788435 |
Image reader for use in image forming apparatus
An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data,...
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6703636 |
Device for reading out information stored in a storage layer
A device for reading out information stored in a storage layer ( 10 ), which facilitates a good reproduction quality of this information stored in the storage layer ( 10 ). The device ( 1 )...
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6628434 |
Method and system for image transfer and image signal output apparatus and terminal used therefor
Upon transferring two image signals to an output apparatus in an image transfer system, the amount of data to be transferred can be reduced. In an image signal output apparatus, subtraction signal...
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6556316 |
Image reading device, image exposure device, and image recording device
Because the dynamic range of a solid-state image sensor is relatively narrow, it is necessary to reduce the amount of light using an aperture so that the amount of light incident on the solid-state...
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6481860 |
Circular optical reflection apparatus
A circular optical reflection apparatus to be used in an optical image capturing device for receiving light ray from a light source and reflecting the light ray at least twice inside the apparatus...
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6262815 |
Image sensor
There is provided an image scanner including (a) an image sensor, (b) a lens for focusing images onto the image sensor, (c) a reflecting mirror for directing images of an object to the image sensor...
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6252682 |
Document sensing device for an image forming apparatus
A document sensing device for an image forming apparatus of the present invention is capable of sensing a document stably without being influenced by disturbing light, e.g., light ascribable to...
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6183933 |
Image forming method and system
A photosensitive material which when imagewise exposed to record a latent image thereon is formed with an image by heating with a prescribed processing material superimposed thereon is used as a...
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6141118 |
Optical scanning device
An optical scanning device corrects a scanning line curvature and prevents image quality degradation, while spatially separating a plurality of light beams at oblique angles of incidence despite...
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6136482 |
Gradation image thermal recording method
A gradation image is recorded on a heat-sensitive recording material, which converts light energy applied thereto to heat energy and forms a color in a density according to a quantity of the heat...
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6097508 |
Optical scanning apparatus, information reading apparatus and information recording apparatus
An optical scanning apparatus for scanning a manuscript, and for optically reading information recorded on the manuscript, having: a plurality of semiconductor lasers for emitting laser lights,...
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6043907 |
Method for reading images and apparatus therefor
The density of cyan color of an image at the peak wavelength λ C1 in the spectral absorption distribution of a developed cyan color dye is detected in the density range of 0-2 as a detection...
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5973574 |
Oscillator system with corrective frequency modulation
A stabilized frequency oscillating circuit outputs a pixel clock signal to an image scanner for controlling pixel rate at various writing positions along a scan line. The circuit includes a...
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5953133 |
Scanning apparatus
A scanning apparatus for scanning and reading a luminescent pattern of a sample in a flat-plate shape, having a placing member for placing the sample as an object for reading; a light condensing...
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5875043 |
Optical scanner for detecting light intensity from reflected image-reading light
An optical scanner including a light emitting device which emits an image-reading light toward an original having an original image thereon, such that the image-reading light scans the original by...
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5858589 |
Intensity modulated stochastic screening for preparing a lithographic printing plate
A method for making a lithographic printing plate from an original containing multiple tones comprising the steps of frequency modulation screening the multiple image to obtain screened data...
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5783356 |
Halftone reproduction by single spot multibeam laser recording
A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and...
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5764377 |
Video interlace system for multibeam raster output scanner
A raster output scanner data controller reads pixels of an image from an image memory and outputs serially pixel data streams to a raster output scanner. The data controller includes an image...
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5754691 |
Normalization of data from holographic correlators
A method is provided for normalizing correlation data from a holographic correlator. After a sequence of object image patterns are recorded in an angularly multiplexed hologram, the entire volume...
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5726775 |
Method and apparatus for determining a profile of an image displaced a distance from a platen
A profile detector in a scanning system measures spacing of an original non-planar image from a reference image plane of the scanning system. The spacing is measured by projecting a spot of light,...
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5716755 |
Method for making a lithographic printing plate according to the silver salt diffusion transfer process
The present invention provides a method for making a lithographic printing plate from an original containing continuous tones comprising the steps of: frequency modulation screening said...
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5700610 |
Time modulated stochastic screening
A method for generating a screened reproduction of a multiple tone image comprising the steps of frequency modulation screening the multiple tone image to obtain screened data representing tones of...
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5677093 |
Size modulated stochastic screening
A method for generating a screened reproduction of a multiple tone image comprises the steps of frequency modulation or stochastic screening the multiple image to obtain screened data representing...
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5668644 |
Video clock signal generator in an optical scanner in which a mask including a linear scale provides timing for controlling the amplitude of a vibrating mirror
A video clock signal generator comprises: a light beam source; a mask having opposite ends spaced by a predetermined distance; a vibration scanner for reflecting the light beam and forming a light...
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5635321 |
Method for preparing a lithographic printing plate
A modulated writing light beam (18) having a wavelength to which an imaging element (33) is sensitive and a reference light beam (46) having a wavelength to which the imaging element (33) is...
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5635318 |
Method for making a lithographic printing plate with frequency modulated halftone dots
There is provided a method for making a lithographic printing plate according to the DTR-process from a printing plate precursor comprising on a hydrophilic surface of a support in the order given...
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5627007 |
Method for use formation of an improved image
A method for exposing a radiation sensitive material is disclosed comprising a double-sided laser exposure of the same information in register on both sides. In a preferred embodiment this material...
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5517330 |
Minimization of differential bow in multiple beam scanning optical systems
A raster scanning system is disclosed which utilizes a post polygon optics which generates a field curvature to substantially reduce a differential bow. The post polygon optics of this invention...
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5499107 |
Laser beam optical scanning system
A laser beam optical scanning system which has a laser source unit for emitting a laser beam which is a parallel pencil of rays, a first imaging system for imaging the laser beam emitted from the...
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5414536 |
Image reader having the ability to correct imaging performance to due field angle focus variations
An image reader operative to correct the decay of image caused by an optical imaging system comprises position detection means for detecting the position of an image signal on an image sensor, by...
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5391443 |
Process for the extraction of spectral image records from dye image forming photographic elements
A method is disclosed of extracting independent spectral image records from an imagewise exposed photographic element that contains superimposed silver halide exposure recording layer units each...
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5267057 |
Image scanning and recording method and apparatus for compensating for a pyramidal error of a rotating polygon
An image scanning and recording method for compensating for a pyramidal error of a mirror surface of a rotating body having at least two reflective mirror surfaces by fine-adjusting an angle of a...
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5218461 |
Scanning optical apparatus
A scanning optical apparatus has a laser beam source for emitting a laser beam, a scanning deflector for deflecting and scanning the laser beam in a principal scanning plane, a scanning lens for...
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5216523 |
Small data terminal apparatus with CCD image sensor
In a small-sized data terminal apparatus with an image input function, a CCD image sensor inputs an image of an object for photoelectric conversion. A mirror is provided between the CCD image...
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5208456 |
Apparatus and system for spot position control in an optical output device employing a variable wavelength light source
In an optical output device wherein a beam of light is generated and focused to a spot upon an image plane, such as a photoreceptor in a xerographic printing apparatus, an apparatus for controlling...
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5202774 |
Image reading apparatus
An image reading apparatus that illuminates or irradiates a document by scanning for reading in two orthogonal directions. In a mode preceding a reading mode, it photoelectrically converts...
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5175636 |
Scanner with a linearized pixel clock
A scanner system includes a light source for producing a light beam and a director that directs the light beam to a spot on a surface to be scanned moving the spot across the surface along a scan...
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5164843 |
Scanner with a linearized VCO pixel clock
A scanner system includes a light source for producing a light beam and scanning components for directing the light beam to a spot on a surface to be scanned that is located at a predetermined...
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5115328 |
Beam scan type recording apparatus with electrically F theta correcting function
A beam scan type recording apparatus for scanning a laser beam periodically on a photosensitive medium for recording a visible image comprised of dot images is disclosed. In the recording...
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5113269 |
Optical scanner
An optical scanner comprises an optical reflecting means capable of being mechanically displaced to deflect an optical beam for scanning across a target, a driving means for controlling the...
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5053889 |
Charge latent image detecting device
A device for detecting a charge latent image on a recording medium includes a photo-modulation member having a composite film of high polymer material and a liquid crystal material dispersed in the...
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4958236 |
Image processing method and apparatus therefor
In a method of reading an image by dividing it into plural areas and reading these divided areas in succession, continuity is given to the data of plural areas by conducting digitization in...
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4769717 |
Apparatus for producing images
This disclosure relates to an image reproduction apparatus for reproducing images through laser beam scanning using galvano mirrors. The apparatus includes a memory device which stores an image...
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4761660 |
Laser scanning apparatus using a fan style grating plate
A laser scanner apparatus using a laser reference beam that is directed to and scans a grating plate which is used for producing a data clock for the apparatus. The grating plate has a line grating...
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