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7414239 |
Optical-scanning apparatus and image forming apparatus
An optical-scanning apparatus is disclosed. In at least one embodiment, the optical-scanning apparatus includes a light deflector to deflect a beam from a light source; and an optical housing...
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7399094 |
Polygon mirror and polygon mirror molding die
A polygon mirror includes a reflective surface group having n number of reflective surfaces (M( 1 ), . . . , M(n)) formed individually as outer peripheral side faces, a flat portion which shuts one...
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7394582 |
Rotary deflector, optical scanning unit and image forming apparatus
The inventive device reduces noises and stabilizes the image quality of an image forming apparatus by reducing vibration thereof by reducing vibration of a driving source itself within a preset...
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7382509 |
Polygon mirror scanner device with tubular magnet adhered to the inside of the tubular mirror with a depression on the inner face, opposite the mirror face, with a gap, absent adhesive, formed between the magnet and inner face
Disclosed is a polygon mirror scanner device, used as a rotor, having a plurality of mirror faces on the outer peripheral face of a mirror member having a substantially tubular shape, with a...
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7379222 |
Optical scanning unit and image forming apparatus
An optical apparatus for irradiating a surface to be scanned with laser light comprises rotary deflecting means for deflecting laser light emitted by a laser emitting means in a shape of a plane, a...
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7379220 |
Multi-beam color scanning device
A multi-beam color scanning device is provided with a multi-beam light source unit, a first polygonal mirror that deflects the plurality of light beams emitted by the multi-beam light source unit...
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7372606 |
Optical pattern generator using a single rotating component
An optical pattern generator uses a single rotating component. The rotating component includes a number of deflection sectors. Each sector deflects an incident optical beam by a substantially...
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7372605 |
Polygon mirror apparatus
A polygon mirror apparatus preventing a polygon mirror from separating from a rotor, having a rotor housing integrally formed with a polygon mirror is provided. The polygon mirror apparatus...
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7372604 |
Multi-beam scanner, multi-beam scanning method, synchronizing beam detecting method and image forming apparatus
A multi-beam scanner includes light sources, a deflector deflecting the beams emitted from the light sources at an equiangular velocity, a scanning image-forming optical system guiding the...
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7355773 |
Optical scanning apparatus and image forming apparatus using same
An optical scanning apparatus includes a light source device, a rotating polygon mirror, a first optical system, and a second optical system. The light source device has at least one light emitter....
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7355771 |
Optical scanning apparatus
An optical scanning device has a light shield plate where a scanning line emitted from a light source passes through a scanning lens, and is reflected by a rotation polygon mirror, and after that,...
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7348549 |
Light scanning apparatus
Provided is a light scanning apparatus, including a light source, a light source controller to control an on/off operation of the light source, a light deflector deflecting light emitted from the...
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7339713 |
Optical beam scanner, image forming device, and optical beam scanning method
An optical beam scanner includes a driving unit rotating a rotary polygon mirror that deflects and scans an optical beam; a rotation position detection unit; a rotation control unit controlling the...
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RE40109 |
Multi-beam optical scanner
A multi-beam optical scanner, in which a lateral magnification β in a composite system of an optical system between the light source for a multi-beam and the scanned surface satisfies the...
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7330295 |
Optical scanning device and cover glass cleaning mechanism for optical scanning device
The present invention relates to an optical scanning device in which a light beam is incident twice on a deflective reflecting facet and its object is to reduce curvature in scanning line trail or...
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7324132 |
Imaging three-dimensional objects
Imaging systems and methods are described. In one aspect, an imaging system includes a light source that is operable to generate a beam of light directed along a beam path and an optical element...
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7304933 |
Optical recording apparatus using scanning mirror for generating two-dimensional beam
The present invention relates to an optical recording apparatus, which converts a one-dimensional signal beam into a two-dimensional signal beam using a scanning mirror at the time of recording...
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7304779 |
Device for converting light
A device for converting light from, for example, a laser, VCSEL (vertical cavity surface emitting laser) or light emitting diode/diodes to a plane of propagation, comprising a collimated or focused...
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7304777 |
Optical scanning apparatus and image forming apparatus using the same
An overfilled optical scanning apparatus has an incidence optical system for converging a light beam onto a deflection surface of a light deflector which has a plurality of deflection surfaces, and...
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7286274 |
Optical scanner and image forming apparatus using the same
The invention aims at provision of an optical scanner in which an optics required for equalizing an optical magnification in a scanning range is produced with high accuracy, so that intervals among...
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7274499 |
Scanning optical apparatus and image forming apparatus using the same
An object of the present invention is to prevent deterioration of image quality caused by ghost light generated from components of a scanning optical apparatus. In the present invention, an image...
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7274498 |
Post-objective scanning device
A post-objective scanning device using a rotatable polygon mirror has a correction system for achieving telecentric scanning with a well-corrected scanning spot. A mirror facet tracker is provided...
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7271942 |
Multi-beam optical scanning apparatus and image forming apparatus using the same
Provided is a multi-beam optical scanning apparatus, which is capable of reducing an inter-light-beams illuminance difference at the same image height on a surface to be scanned and forming a...
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7271941 |
Laser scanning unit including a shield
A laser scanning unit is provided comprising: a housing; a scanning device; a first pre-scan assembly generating a first light beam and directing the first light beam toward the scanning device; a...
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7271383 |
Scanning system with feedback for a MEMS oscillating scanner
A scanning system for a printer or scanner that has a beam source that produces a light beam at a point of origin and has a scanning mirror that sweeps the light beam from a position “A” to a...
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7265886 |
Optical scanner and image forming apparatus
The over-field type optical scanner includes a first imaging optical system disposed between a light source and a rotating polygon mirror for forming, on one surface of the rotating polygon mirror,...
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7262896 |
Polygonal mirror unit, light scanning unit, and image forming apparatus employing the same
A polygonal mirror unit is adapted to prevent contamination using a photocatalyst, a light scanning unit, and an image forming apparatus employing the polygonal mirror. The polygonal mirror unit is...
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7256918 |
Optical scanning device and image forming apparatus incorporating the same
In order to determine an arrangement of an optical scanning device provided with a rotary polygon mirror having a plurality of reflective faces, it is determined a direction of polarization of...
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7253938 |
Laser scanning apparatus
A light scanning apparatus is provided. The light scanning apparatus includes a beam splitter, which is located between a polygonal mirror and an fθ lens and reflects a portion of light incident...
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7248391 |
Optical scanning system and image forming apparatus using the same
Disclosed is an optical scanning system and an image forming apparatus having the same, wherein, in one preferred form of the invention, the optical scanning system includes a light source device,...
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7247841 |
Light scanning apparatus
Provided is a light scanning apparatus, including a light source, a light source controller to control an on/off operation of the light source, a light deflector deflecting light emitted from the...
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7245409 |
Scanner apparatus and image forming apparatus
A polygon mirror is placed so that its rotation axis is positioned on a center line in a main scanning direction of an image forming area scanned by each light beam. Moreover, two light beam...
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7242505 |
Beam deflector, light scanning unit using the same, and image forming apparatus using the light scanning unit
A beam deflector including a driving source for providing a rotation force, a beam deflection unit rotatably arranged on the driving source to deflect and scan an incident beam, and a cover member...
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7236282 |
Polygon mirror and optical scanning apparatus employing the same
A polygon mirror structure comprising a mirror body including spherical ceramic particles, a reinforcement member for reinforcing the strength of the ceramic particles, and a polymer, and further...
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7227676 |
Optical scanning apparatus
To provide an image forming apparatus including a plurality of laser scanning units having deflecting and scanning means which deflect and scan light fluxes emitted from a plurality of light...
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7218434 |
Optical scanning apparatus and image forming apparatus equipped with the same
An optical scanning apparatus in which streaks in an image or unevenness in density of an image caused by influences of dusts, scratches and toner etc on the surface of a reflecting member are...
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7218433 |
Scanning apparatus using a plurality of diffracted beams
The present invention provides a scanning apparatus, which scans a plurality of diffracted beams, obtained by diffracting and modulating light emitted from a single light source, on a scanning...
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7218432 |
Optical scanning apparatus and image forming apparatus
A light source which is a surface emitting laser including a plurality of apertures that correspond to light emitting regions arranged in a two-dimensional array and limit the regions, and a...
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7215454 |
Device for substrate treatment by means of laser radiation
An apparatus for substrate treatment by means of laser radiation includes a rotating polygonal mirror by which at least one incident laser beam is reflected and is pivotable across an arrangement...
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7212324 |
Optical scanning arrangement and image forming device with the arrangement
The present invention includes a first plate ( 14 ) and a second plate ( 15 ) which perform a coarse adjustment of a cylinder mirror ( 245 ) by moving the cylinder mirror ( 245 ) linearly in the...
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7209273 |
Image forming apparatus and image forming method
An image forming apparatus which includes image forming units of a plurality of colors, each having an image carrier and a light beam scanning portion for polarizing irradiated laser beam by a...
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7193762 |
Scanning optical apparatus and image forming apparatus using the same
A scanning optical apparatus having stable optical performance even if the characteristic of a vertical cavity surface emitting laser is fluctuated due to increase in drive current, and an image...
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7193761 |
Method of controlling beam scanning timing and beam energy and light beam scanning apparatus using the same
Disclosed herein is a method of controlling beam scanning timing and beam energy and a light beam scanning apparatus using the method. The light beam scanning apparatus includes a beam generation...
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7193760 |
Optical scanning device and image forming apparatus
An optical scanning device includes a light source, a pre-deflection optical device for applying a predetermined characteristic to a light beam irradiated from the light source, a light deflection...
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7193759 |
Scanning optical system
There is provided a scanning optical system, which is provided with a light source that emits at least one beam, a polygonal mirror, and an imaging optical system that converges the at least one...
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7182466 |
Projection optical system and optical system
A projection optical system includes an optical modulation unit which outputs modulated light for displaying an image, an optical scanning unit on which the modulated light output from the optical...
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7164519 |
Laser processing apparatus and method using polygon mirror
Disclosed is a laser processing apparatus and method for enhancing processing efficiency of an object by means of a polygon mirror. The laser processing apparatus includes a laser generator...
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7154652 |
Light scanning optical system, image projection apparatus, and image display system
A light scanning optical system that is capable of increasing a deflection angle without causing optical performance degradation includes a reflection surface for reflecting incident light, a unit...
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7149021 |
Optical scanner and image forming apparatus using the same
An optical scanner for an image forming apparatus of the present invention includes a polygonal mirror for steering a scanning beam incident thereto and an optical device located in the vicinity of...
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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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