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7625089 |
Wavefront sensor having multi-power beam modes, independent adjustment camera, and accommodation range measurement
An improved wavefront sensor is provided that enhances the initial focus and precision of imaged spots used to determine the monochromatic wave aberrations of the eye. The wavefront sensor includes...
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7623281 |
Scanning optical system, image formation apparatus including the scanning optical system, and imaging optical system used in the scanning optical system
A scanning optical system includes a deflector for deflecting a laser light flux from a light source and a second imaging optical system for focusing the laser light flux deflected by the deflector...
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7619796 |
Optical scanning device and image forming apparatus
An aperture has an aperture opening that transmits a predetermined portion of a light beam. A phase optical element changes a phase of a portion of a light beam. A scanning lens focuses the light...
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7619795 |
Optical scanning device, optical scanning method, and image forming apparatus
An optical scanning device includes a laser light source that emits a laser beam; a light deflector that deflects the laser beam; a scan-imaging optical system that focuses the laser beam deflected...
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7614752 |
Image display apparatus and method, and driving apparatus and method
The present invention provides an image display apparatus including a spatial light modulating element formed with a plurality of light modulating elements for each modulating light from a light...
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7605963 |
Optical beam scanning apparatus, optical beam scanning method and image forming apparatus
An optical beam scanning apparatus according to the present invention includes a light source, a pre-deflection optical system, a light deflecting device, a post-deflection optical system, a first...
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7602541 |
Optical beam scanning apparatus and image forming apparatus
In an image forming apparatus provided with an optical beam scanning apparatus according to the invention, an optical beam scanning apparatus of an overillumination scanning optical system includes...
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7601949 |
Optical scanner device
An optical scanner device, comprising a scanning unit, which casts irradiation light emitted from a light source in an arbitrary direction to scan an observation object, an objective lens system,...
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7593150 |
Diffraction optical element, light beam detection device, optical scanner and image forming apparatus
An optical element for diffracting a light beam includes a diffractive surface having a one-dimensional periodic structure. The periodic structure and transmissive diffraction efficiencies T′p(m)...
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7586661 |
Optical scanning device and image forming apparatus
A coupling optical system that includes a coupling lens, a linear-image forming lens, and an aperture couples light beams emitted from a light source to form a light flux. A deflector scans the...
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7557974 |
Optical scanning apparatus and image forming apparatus using the same including relationship between interval between deflector and scanned surface and a natural convergent point
A compact optical scanning apparatus capable of desirably correcting an f characteristic, a field curvature, and other aberrations, and an image forming apparatus using the same, which includes an...
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7554709 |
Optical scanning apparatus and image forming apparatus employing this apparatus
An optical scanning apparatus including a light source, deflection unit configured to deflect a light flux emitted by the light source, a first optical system configured to condense a divergent...
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7554708 |
Optical scanning device and image forming apparatus
An optical scanning device includes a first optical element that converts a cross-section shape of a light beam from a semiconductor laser to a desired shape; a second optical element that guides...
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7542189 |
Light scanning apparatus and image forming apparatus using the light scanning apparatus
A light scanning apparatus including a semiconductor laser which emits a light beam having a wavelength equal to or less than 450 nm, an incidence optical system which makes the light beam, emitted...
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7535613 |
Scanning laser display apparatus using laser diode array directed to and corresponding with condensing means of plane mirrors
An improved laser display apparatus is disclosed, which comprises a LED device array in which a plurality of laser diode devices are arranged in a straight shape for thereby scanning a laser diode...
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7528932 |
SLM direct writer
The present invention relates to an apparatus ( 100 ) for patterning a workpiece arranged at an image plane and sensitive to electromagnetic radiation, comprising a source emitting electromagnetic...
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7525708 |
Scanner head for a laser machining device
A scanner head is provided for processing a workpiece by means of a focused laser beam. The scanner head includes a first module, rotatably supported in a first direction in order to deflect the...
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7522324 |
Optical scanning device and image forming apparatus using the same
An optical scanning device and an image forming apparatus having the same include a light source, a deflecting system, an imaging optical system with at least one imaging optical element for...
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7518771 |
Optical scanning device and image forming apparatus equipped with the same
An optical scanning device is configured in such a manner that, of four light beams for colors corresponding to black, cyan, magenta, and yellow, the angle of the reflection surface of the last...
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7515321 |
Ophthalmic apparatus
A multifunction ophthalmic apparatus, capable of efficiently measuring and examining eye characteristics respectively, has an measurement part including a unit blowing fluid to a cornea via a...
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7508565 |
Optical beam scanning apparatus, method of manufacturing optical beam scanning apparatus, image forming apparatus and method of manufacturing image forming apparatus
In an image forming apparatus according to the invention, an optical beam scanning apparatus of an overillumination scanning optical system includes a laser, a pre-deflection optical system, a...
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7505187 |
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. For a cylindrical lens...
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7486426 |
Two-dimensional optical scan system using a counter-rotating disk scanner
A counter-rotating disk scanner together with another scan mechanism provides two-dimensional optical scanner. The counter-rotating disk scanner includes counter-rotating scan disks that implement...
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7479626 |
Optical scanner device
An optical scanner device, comprising a scanning unit, which casts irradiation light emitted from a light source in an arbitrary direction to scan an observation object, an objective lens system,...
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7471307 |
Image forming apparatus and method of controlling same
An electrophotographic image forming apparatus senses amounts of color misregistration of toner images, which are formed using n-number (where n is a natural number and n=2 holds) of photosensitive...
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7468823 |
Optical beam scanning device, image forming apparatus and lens
An optical beam scanning device of the invention includes a single light deflection device, a pre-deflection optical system which causes a light beam emitted from a light source to be incident to...
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7468508 |
System for and method of projecting an image and adjusting a data frequency of a video signal during image projection
A composite laser beam is swept as a pattern of scan lines on a projection surface, and selected pixels arranged along each scan line are illuminated to project an image of high quality and in...
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7466472 |
Image forming apparatus, image forming method, program and computer readable information recording medium
Upon predetermined mark image measurement, the timing signal is adjusted to obtain a required correction amount for a scan magnification of the modulated light in a measurement range of the...
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7466466 |
Optical scanning method and system and method for correcting optical aberrations introduced into the system by a beam deflector
An optical scanning method and system and method for correcting optical aberrations introduced into the system by a beam deflector are provided. The optical scanning method and system utilize a...
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7460288 |
Methods for determining refractive corrections from wavefront measurements
A method for determining a refractive correction for an eye involves measuring an optical error of the eye, calculating at least one image quality parameter for a selected spatial frequency of...
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7453487 |
Optical scanning apparatus having scanning line curvature correcting mechanism with sliding pressure point along a longitudinal direction of the optical element
An optical scanning apparatus for correcting the curvature of a scanning line effectively by a small number or parts, having a rotary polygon mirror for scanning a ray of light, and a reflecting...
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7450313 |
Scanning lens molded from resin and method of positioning a scanning lens
A scanning lens is molded from resin. A lens part refracts a light beam which is scanned in a first direction of the lens part. The lens part defines an optical axis orthogonal to the first...
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7450142 |
Scanning optical device with post-deflection diffraction element supported by an end-side swing member to suppress vibration
In a scanning optical device which deflects a light flux from a light source with a deflection scanning unit to perform light scanning to a body to be scanned through at least one optical member,...
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7446917 |
Optical scanning apparatus
An optical scanning apparatus constructed to dispose optical elements guiding light beams to a deflector such as a rotary polygon mirror at a low cost with high accuracy, includes a first light...
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7443560 |
Scanning imaging apparatus
A scanning imaging apparatus comprises an optical system including a curved polariser/reflector, a rotatable reflector, a polarisation twisting plate, and a receiver array, wherein a convex...
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7443557 |
Optical beam scanning apparatus and image forming apparatus
An image forming apparatus provided with an optical beam scanning apparatus according to the invention includes a semiconductor laser device, a pre-deflection optical system, a polygon mirror, and...
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7443556 |
Optical scanning apparatus and image forming apparatus
In an optical scanning apparatus, an optical element has power for predominantly correcting a position of a scanning line by scanning in a sub-scanning direction; a scanning line curvature...
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7436562 |
Scanning examination apparatus, lens unit, and objective-lens adaptor
It is possible to easily and accurately confirm the position of an optical axis of an objective lens relative to an examination site on a specimen, and positioning of the objective relative to the...
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7433109 |
Scanning optical system and scanning optical device
There is provided a scanning optical system used with a deflection mirror that produces sinusoidal vibrations. The scanning optical system includes a first lens having a positive power, and a...
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7428088 |
Optical scanning apparatus and method for adjusting the same
An optical scanning apparatus which is free from any deterioration of drawing performance and which can be miniaturized and simplified in overall configuration, and an image forming apparatus using...
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7414765 |
Optical scanning device and image forming apparatus using the same
An optical scanning device deflects, by a common optical deflecting part, a plurality of groups of light beams emitted from a plurality of light sources and directs, by a scanning and imaging...
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7397591 |
Optical scanner and image forming apparatus
An optical scanner includes a light source, an optical coupler, an optical line image unit, a deflector, and an optical scanning unit. The optical scanning unit includes scanning lenses that guide...
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7391548 |
Optical beam scanning device and image forming apparatus
An optical beam scanning device and an image forming apparatus are capable of suppressing adverse effect due to ambient temperature change on plural optical elements. The optical beam scanning...
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7385746 |
Optical scanning system and image forming apparatus using the same
An optical scanning system includes a deflecting device to scanningly deflect a light beam from a light source in a main scan direction, and an imaging optical system for imaging, upon a surface to...
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7385745 |
Two-dimensional scanning apparatus and scanning type image displaying apparatus using the same
The invention is to provide an optical scanning apparatus which scans light from a light source onto a surface to be scanned, comprising a light scanning optical system having at least one...
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7365893 |
Iterative Fourier reconstruction for laser surgery and other optical applications
Methods, systems and software for determining an optical surface model for an optical tissue system using Fourier transformation algorithms. A method of reconstructing optical tissues of an eye...
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7362487 |
Optical element and optical scanning device using the same
Provided is an optical element capable of reducing Fresnel (surface) reflection on a lens surface which causes flare or ghost, an optical system including the optical element, and an optical...
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7362486 |
Optical scanning device with at least one resin lens for controlling a beam waist position shift
A first optical system guides a light beam from a light source to an optical deflector, and a second optical system converges the light beam deflected by the optical deflector on a surface to be...
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7351944 |
Beam irradiation device
In a beam irradiation device of the present invention, laser beams emitted from a semiconductor laser impinge on an irradiation lens supported by a lens actuator. The laser beams that have passed...
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7347567 |
Arrangement for projecting an image onto a projection surface and associated transformation lens system
The invention relates to an arrangement for projecting an image, which is made of pixels, onto a projection surface, including at least one light source whose intensity can be altered and which...
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