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7589879 |
Method and apparatus for attaching part, light scanning apparatus and image forming apparatus
A method for attaching a part, including preparing an optical part-holding member for holding an optical part and a housing member having a bottom wall and mountable the optical part-holding...
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7586662 |
Three-dimensional light ray input apparatus
A three-dimensional input apparatus includes a lens L 1 for converting angular information about light rays from a object, a focusing element L 3 for focusing the light rays from the object to...
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7570407 |
Scanning mechanism, method of machining workpiece, and machine tool
A scanning mechanism that scans a scanning object with a light beam has light-collecting means for collecting the light beam that is emitted by a light source; driving means for driving the...
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7529010 |
Precision laser machining apparatus
A focused laser beam having an optical axis passes through a first lens mounted to a first galvanometer and a second lens mounted to a second galvanometer. The first galvanometer is adapted to tilt...
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7495831 |
Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in time
An optical element, an optical device, and a display device are disclosed that are able to change a polarization state in time order and to produce polarized light with little wavelength dependence...
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7489457 |
Optical lens module
An optical lens module including a foundation, at least one actuator, a lens base, an optical lens, at least one shaft, and at least one rocker arm is provided. The actuator is disposed in an...
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7480086 |
High speed, high efficiency optical pattern generator using rotating optical elements
An optical pattern generator includes one or more multi-faceted rotating optical elements that introduce an offset that is rotation insensitive. The component that generates the offset is...
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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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7443554 |
Tilted plate dither scanner
An optical apparatus and a method of using an optical instrument comprising providing to a primary optical axis of the instrument a plate tilted so as not to be perpendicular to the primary optical...
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7433110 |
Three-dimensional light ray input apparatus
A three-dimensional input apparatus includes a lens L 1 for converting angular information about light rays from a object, a focusing element L 3 for focusing the light rays from the object to...
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7425074 |
Display device and display method
A concept of improving a resolution by using human's visual characteristics is provided. A display device includes an image forming unit forming an image by using an emitted light and an inputted...
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7300157 |
Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability
A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated...
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7290884 |
Display device having resolution improving apparatus for project-type display device
A concept of improving a resolution by using human's visual characteristics is provided. Bu the present invention, an image can be displayed at a more improved resolution than an actual physical...
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7270417 |
Display device and display method in which resolution improving apparatus is provided for project-type display device
A concept of improving a resolution by using human's visual characteristics is provided. An image can be displayed at a more improved resolution than an actual physical resolution, thereby...
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7123394 |
System and method for the laser beam deflection for optical measuring systems
A system for the laser beam deflection for optical measuring systems includes an optical element for the deflection of an incident laser beam and a driving unit for generating a rotational movement...
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6937375 |
Scanning device
A scanning apparatus includes a radiation source for emitting a light beam, a rotatable prism for deflecting the light beam, and a lens arrangement for projecting the light beam onto a scene to be...
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6901204 |
Microelectromechanical system (MEMS) variable optical attenuator
Disclosed is an MEMS variable optical attenuator comprising a substrate having a planar surface, optical fibers having an optical signal transmitting end and an optical signal receiving end,...
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6895190 |
Switchable bandwidth lowpass filter
A novel transceiver is provided which allow for either a transmitter or receiver to be dynamically switched between two different frequency bands by use of a novel switchable lowpass filter.
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6885485 |
Multibeam scanning device
A multibeam scanning device includes a deflecting system that deflects a plurality of beams, which are emitted by a light source, in a main scanning direction. On a first imaging optical system,...
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6836364 |
Beam steering and scanning device
A beam steerer/scanner ( 50 ) includes a dynamically balanced bi-index rotating element ( 52 ). The element is comprised of a pair ( 52 A, 52 B) of transparent hemispheres which are of the same...
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6791729 |
Adjusting imaging position of optical beam spot in main and sub-scanning directions by individually and/or collectively adjusting position(s) of temperature-compensating lens(es)
The imaging position of an optical beam spot in an optical scanning device is adjusted. The imaging position of the optical beam spot is adjusted in both a main scanning direction and a...
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6735003 |
Method and apparatus for reducing artifacts in an imaging system
A method and apparatus for reducing artifacts in an imaging system by directing a stream of air onto the beam deflection assembly of the imaging system. An air displacement system, such as a fan...
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6639698 |
Optical scanning unit with rotatable hologram disc
An optical scanning unit with a rotatable hologram disc, including a light source, a rotatable hologram disc provided with a plurality of holograms, the holograms being formed concentrically along...
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6626547 |
Method of using a spectral dispersion device
A spectral dispersion device includes a transmission member formed of a translucent material and formed with an image surface, a reflection surface, and a dispersion surface. The image surface...
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6624919 |
Light scanner with cylindrical lenses
A scrolling scan optical band scanner is provided having a scrolling scan optic with a scan function that inherently deviates from an ideal imaging function over wide apertures. Compensation optics...
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6575963 |
Laser scanning apparatus and method
The present invention provides a method for scanning material with a laser beam including directing a laser beam ( 20 ) through a scanning means, wherein said scanning means includes a first lens (...
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6529296 |
Hologram scanner
A hologram scanner is constructed with a driving source for providing a rotational force, a deflection disk installed at the rotation shaft of the driving source for forming a scanning line, the...
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6501538 |
Optoelectronic arrangement for determining an object's profile
A rangefinder apparatus with an optoelectronic arrangement for determining a height profile of an object. The apparatus has a transmitter that emits light rays, a deflection unit that deflects the...
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6456419 |
Frequency modulated liquid crystal beamsteering device
An electrical exciting circuit produces a plurality of oscillating electrical excitations, each at an independently controllable frequency. A set of drive electrodes are distributed in an array,...
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6437896 |
Device for deviating electromagnetic rays or radiation beams in the optical spectral domain
The invention concerns a device for electromagnetic rays or radiation beams in the optical spectral domain, in particular for laser beams, comprising at least a deviating element provided with at...
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6307662 |
Blazed diffraction scanner
A scanner includes a laser for projecting a laser beam at a facet having a blazed diffractive grating thereon. The facet is rotated relative to the laser to traverse the laser beam across the...
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6292286 |
Plate for rotatably supporting a light path refraction plate in multi-directions and an image processing device employing the same
A plate for supporting a light path refraction plate arranged in front of a color coupled device in a manner that the light path refraction plate is rotated in multi-directions, and an image...
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6239895 |
Scanning apparatus and method employing a lens spinning on an axis normal to the scan plane
One or more lenses are revolved around an axis normal to a flat scan plane to provide a scanning mechanism for exposure onto (or reading off of) a flat plane of a substrate. The data for the image...
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6211989 |
Light-scanning device
A light scanning device for exciting and detecting secondary light, especially fluorescent light, on a sample, comprising a light emission device for emitting exciting light with a wavelength...
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6185017 |
Diffractive deflection beam scanning system
A diffractive deflection beam scanning system including: a plurality of light sources; a deflection disc rotatably mounted over the light sources, having patterns capable of diffracting and...
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6181447 |
Laser scanning unit
A laser scanning unit (LSU) in a structure capable of radiating heat generated by a light source. The LSU includes at least one light source, a driving source for providing rotational force, and a...
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6172775 |
Composition for repairing and removing scratches from photographic surfaces
The present invention is a composition for removing scratches from photographic elements. The composition includes a solvent, an abrasive particle, a petroleum distillate, hard wax and water.
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6157473 |
Holographic storage system incorporated therein a parabolic mirror
A holographic storage system implements both a rotational and an angular multiplexings in combination. The system comprises a light source, a pair of wedge prisms, a beam splitter, a first, a...
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6157472 |
Multi-laser scanning unit
A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for...
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6141134 |
Multiple-resolution optical device
A multiple-resolution optical device used to scan objects of variable sizes in various resolutions and forming corresponding images onto an image sensor is disclosed. The multiple-resolution...
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6130769 |
Rotary mirror assembly having spherical housing
A rotatable mirror assembly is described comprising a spherical housing (1) rotatable about an axis (A). The housing contains a mirror (2) bonded in the rear end of the housing. The housing at the...
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6120976 |
Laser ablated feature formation method
A method and apparatus for ablating features in a substrate, the apparatus includes a radiation source and first and second rotating transparent uniformly thick disks positioned between the...
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6028660 |
Illumination unit for an optical apparatus
Illumination unit (2) for an optical system, including an illumination system (1) which comprises, in this order, a radiation source (3) and a first optical integrator (11). The illumination unit...
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6020984 |
Light beam scanning apparatus using a rotating hologram and a fixed hologram plate
A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems such as an optical lens or a mirror having curvature, and...
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6018409 |
Multi-beam scanning apparatus
A multi-beam scanning apparatus includes at least two optical sources, a beam deflector having a deflection disc with a plurality of sectors for diffracting and transmitting incident beams, and a...
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6005721 |
Device for observing a plurality of fields of view by means of an image resolving detector
A device for the detection of a continuous field of view or an arrangement of non-contiguous field of view sectors by means of an image resolving detector is provided such that the field of view...
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5995269 |
Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit
An optical unit for optically scanning a surface, particularly an information surface of a recording medium. The unit may include a frame, a radiation source unit, a rotatable mirror unit, and an...
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5986778 |
Hologon deflector system having dispersive optical elements for scan line bow correction, wavelength shift correction and scanning spot ellipticity correction
Bow can be minimized by an auxiliary grating in a post deflection path of the diffracted beam from the hologon which is disposed in non-parallel relationship to the plane of rotation of the...
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5959756 |
Optical deflection switch
A 1×n optical deflection switch has an array of k transmissive light deflectors to switch an incident light beam into one of n=2 k directions. The switch can steer the light through the...
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5898805 |
Light transmission device using optical fiber
A light transmission device includes a semiconductor laser for emitting a laser flux, an optical fiber for transmitting the laser flux emitted from the semiconductor laser, and a device that...
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