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7612865 |
Pattern writing apparatus and pattern writing method
Light irradiation is performed on a strip region on a photosensitive material by main scanning of an irradiation region group on the photosensitive material where light emitted from a micromirror...
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7598008 |
Methods for imaging regular patterns
Methods for imaging regular patterns are provided. A multi-channel imaging head is configured in accordance with the repeat of a pre-determined regular pattern such that no swath boundaries appear...
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7589756 |
Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming method
A beam detecting unit detects at least one of a position of an optical beam in a sub scanning direction and a position of the optical beam in a main scanning direction. A color-misalignment...
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7580053 |
Laser control circuit and image forming apparatus
An image data processing section subjects input image data to image processing, and outputs first to fourth image data. First to fourth pulse width modulation circuits are PWM circuits in each of...
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7564535 |
Seamless exposure with projection system comprises array of micromirrors with predefined reflectivity variations
A lithographic scanning apparatus includes a light projection device for seamlessly and uniformly projecting a scanning light onto a light exposing area. The light projecting device further...
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7564474 |
Line head module and image forming apparatus
A line head module includes a line head in which a plurality of organic EL elements is arranged, a lens array made by arranging lens elements that form an image of light from the line head. A first...
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7557820 |
Optical multi-beam scanning device and image forming apparatus
The present invention can be adapted to improve optical efficiency even when a light source is disposed without restricting a polarization direction or an orthogonal direction with respect to an...
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7545403 |
Optical system having image direction modulator and LITI apparatus including the system
An optical system has an image direction modulator and a laser induced thermal imaging (LITI) apparatus includes the optical system. The optical system includes a laser source for producing laser...
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7542063 |
Laser irradiation apparatus and method of fabricating organic light emitting display using the same
Provided are a laser irradiation apparatus and method of fabricating an organic light emitting display using the same. The laser irradiation apparatus includes a mask positioned below the laser...
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7532227 |
Optical scanner and image forming apparatus
An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem...
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7528855 |
Light scanning device, and image forming apparatus using the light scanning device
A light scanning device for performing laser beam scanning, which includes a polygon scanner configured to deflect a laser beam; an optical device configured to guide the deflected laser beam; a...
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7505060 |
Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same
A light scanning apparatus that scans a scanned face with a light beam includes an adjusting unit that adjusts the position of a light spot of the light beam formed on the scanned face, and a...
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7502046 |
Optical scanning unit and image forming apparatus
According to the present invention, highly accurate adjustment of the angles and positions of optical elements constituting an optical scanning unit can be easily performed. The optical scanning...
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7499071 |
Exposure device with a transmissive member and members for shielding the same
An exposure device includes a transmissive member and a shutter. The transmissive member allows passage therethrough of a light beam directed toward a scanning object. The shutter is mounted so as...
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7486306 |
Optical writing device and method of manufacturing the same
A plurality of photo emitters are arrayed on a transparent substrate in a first direction to form at least one photo emitter array. An electrode is provided on the substrate and electrically...
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7474324 |
Printing apparatus using order-separation type optical modulator
Disclosed herein is a printing apparatus using an order-separation type optical modulator. The printing apparatus includes an illumination lens system, a diffraction type optical modulator, a...
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7466331 |
Bow-free telecentric optical system for multiple beam scanning systems
A multiple beam scanning system for scanning light beams onto a photoreceptor of an image forming apparatus. A pre-polygon input and output telecentric optical subsystem includes a beam...
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7463276 |
Device for imaging a printing form having an optical correction element
A device for imaging a printing form in a printing form exposer, has at least one laser diode bar which has a number of laser diodes, which are each disposed along a line with nonuniform positional...
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7463275 |
Light source for image writing apparatus and production method for light source
An image forming apparatus includes a light source provided with converting structure for converting an advancing direction of light emitted from the light source, whereby a direction in which the...
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7460145 |
Multi-beam pitch adjusting apparatus and image forming apparatus
A multi-beam scanning apparatus includes a light source having first and second light source sections that hold a pair of semi-conductor laser diodes and coupling lenses that couple four beams...
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7439998 |
Optical recording apparatus
An optical recording apparatus includes a plurality of laser modules, an optical fiber array unit, a photosensitive member, and an optical system. Each laser module includes a light source and an...
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7427999 |
Image forming apparatus
A first optical scanning device for scanning image data of colors (yellow, magenta, cyan and black) which serve as the basic for formation of color image employs an optical system having optical...
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7417659 |
Exposure device, LED print head, and image forming apparatus having the exposure device and the LED print head
A shape or position of a shielding member is set corresponding to an image focusing property of each rod lens element to prevent an MTF from deteriorating, to provide a clear exposure image, and to...
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7375847 |
Optical scanning device and image forming apparatus using the same
An optical scanning device has: a first optical system for converting a flux of light that has been emitted from a light source into another flux of light; a second optical system for focusing the...
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7370415 |
Manufacturing method of ink-jet head
A method for manufacturing an inkjet print head with ink channels formed on a member including a piezoelectric body, and where ink is jetted from each of the ink channels by applying a voltage to...
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7369268 |
Light source using large area LEDs
A printing apparatus ( 100 ) for printing digital images onto a photosensitive medium ( 140 ) employing, for exposure energy, a light source ( 20 ) that uses various arrays of LEDs ( 32 ). The...
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7355616 |
Polarization-direction-controlling element and exposure device
A polarization-direction-controlling element comprising a ½ wavelength plate disposed with a crystal optical axis tilted at substantially 45 degrees with respect to a polarization direction of a...
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7349003 |
Method for determining a correction value for light-emitting parts in exposure apparatus
The invention is directed to the provision of an exposure apparatus that can determine a correction value for each individual light-emitting part by employing a method that detects the amount of...
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7333128 |
Laser shutting device and laser scanning unit employing the same
A laser shutting device blocks laser beams in a laser scanning unit that includes a light source that emits laser beams and a beam deflecting unit that deflects the laser beams in a main-scanning...
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7317562 |
Image reading apparatus with plural sensor IC chips
An image reading apparatus includes a plurality of sensor IC chips aligned in a row. Each of the sensor IC chips incorporates a plurality of light receiving elements. The plurality of light...
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7292259 |
Recording system for light-sensitive sheet
The invention provides a system for recording a datum onto a pixel on a light-sensitive sheet. The system essentially includes a light-emitting device and an interfering device. The interfering...
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7286259 |
Self-scanned light-emitting device array, its driving method, and driving circuit
A method for driving a self-scanning light-emitting element array is provided in which two light-emitting elements may be illuminated simultaneously in one chip. In a self-scanning light-emitting...
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7283152 |
Collimation assembly with an adjustment bracket capable of flexing when receiving a light source
A collimation assembly is associated with a printhead housing for generating a substantially collimated laser beam. The collimation assembly comprises: a collimation housing mounted to the...
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7280130 |
Optical multi-beam scanning device and image forming apparatus
An optical multi-beam scanning device has a plurality of pre-deflection optical units, an optical path synthesizing member and an excessive light processing member. The excessive light processing...
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7274514 |
Electro-optical device, image printing apparatus, and method of manufacturing electro-optical device
An electro-optical device includes an electro-optical panel which has a plurality of electro-optical elements whose light-emitting characteristics or transmissive characteristics are changed by...
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7271823 |
Optical scanner and image forming apparatus
An optical scanner has a deflector, a coupling lens, a cylindrical lens, a plate through which light to and from the deflector pass, and an optical system which condenses the light deflected on a...
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7265773 |
Misalignment detection device, optical writing apparatus, and image forming apparatus
An image detection device includes a light source, an image sensor, a light guiding device, an image focusing device and a housing. The light source is configured to irradiate a pattern image with...
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7218337 |
Optical scanner, optical-path adjustment method, and image forming apparatus
An optical scanner includes a light source which emits a light beam, a reflection mirror which has a reflection surface, a first axis parallel to a main-scanning direction, and a second axis along...
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7187399 |
Exposure head with spatial light modulator
In an exposure head of the invention, plural first micro-focusing elements are arranged in a first microlens array so as to correspond to plural micromirrors in a DMD. An aperture array that...
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7177011 |
Image drawing apparatus and image drawing method
In an image drawing apparatus and an image drawing method for forming a desired two-dimensional pattern on an image drawing surface by using a plurality of image drawing heads, uneven density and...
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7173644 |
Optical printhead and image forming apparatus
An optical printhead includes a light source, a light guide, and a light collecting sheet. The light guide includes a light incident surface facing the light source and a flat light emitting...
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7154640 |
Multi-beam scanning apparatus and image forming apparatus using the same
This invention is to obtain a multi-beam scanning apparatus which always executes synchronization detection at the same timing to prevent any jitter, and an image forming apparatus using the...
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7154525 |
Method and device for focus adjustment of optical writing unit and image forming apparatus incorporating the focus adjustment device
Focus adjustment of an optical writing unit is performed based on an image of a test pattern formed on a paper sheet. The pattern includes bars of density levels associated with adjustment quantity...
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7151556 |
Sub-scanning interval adjusting apparatus for multi-beam scanning unit
A sub-scanning interval adjusting apparatus for a multi-beam scanning unit adjusts an interval between at least two laser lines that are formed on a photoreceptor drum without causing starting...
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7149019 |
Optical scanning system and image forming apparatus using the same
Disclosed is an optical scanning system and an image forming apparatus using the same, which is designed to reduce the overall size of the system and to make uniform the light spot diameter in a...
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7145589 |
Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same
A light scanning apparatus that scans a scanned face with a light beam includes an adjusting unit that adjusts the position of a light spot of the light beam formed on the scanned face, and a...
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7136084 |
Random laser image projector system and method
A laser projection system is disclosed. The laser projection system includes a laser light source that is configured to selectively provide laser light. The system also includes an input beam...
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7126735 |
Optical scanning apparatus
An optical scanning apparatus comprising a plurality of light sources, a polygon mirror for deflecting beams emitted from the light sources in a main scanning direction, lenses for imaging the...
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7098937 |
Multi-beam scanning optical system, image forming apparatus, and color image forming apparatus
In a multi-beam scanning optical system, when at least three light fluxes emitted from a light source having at least three light-emitting points are deflected and reflected on a deflection unit...
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7088382 |
Imaging optical system, image forming apparatus having the same, and a method therefor
An image forming apparatus includes a semiconductor laser array to emit a plurality of laser beams through a plurality of independently controllable laser elements according to an image signal, an...
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