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8183721 |
Oscillation drive device
An oscillation drive device includes an oscillating unit that includes attaching portions on either sides thereof, the attaching portions being arranged on an oscillation axis; a base that includes...
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8094354 |
Scanning objective lens, scanning probe and scanning endoscope
A scanning objective lens for scanning on an observation target with light emitted from an exit end face of an optical fiber moving on a curved plane formed to be convex on an objective lens side,...
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8045250 |
Optical scanning using rotating parallel plate
A beam of incident light may be positioned on a target by directing the beam towards the target and transmitting the incident beam of light through one or more refractive plates having first and...
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8023166 |
Optical scanning device and image forming apparatus
An optical scanning device includes, in an effective scanning area in the target surface, a mechanism that causes a scanning speed at each scanning position with respect to a scanning speed at an...
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7961369 |
Large-angle agile laser beam steering apparatus and method
A laser beam steering apparatus includes a beam steering cell with an adjustable shape, with the cell having opposing Fabry-Perot filters, and a steering mechanism coupled to the cell to adjust its...
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7948606 |
Moving beam with respect to diffractive optics in order to reduce interference patterns
A system and method are used to form incoherent beams from at least a partially coherent beam, such that interference or speckle patterns are substantially eliminated. A rotating optical element...
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7940442 |
Optical scanning device and component thereof
To provide an optical scanning device capable of scanning with a simple configuration. It includes a laser unit 10 for emitting a light beam, a laser control unit 42 for adjusting the light beam...
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7933056 |
Methods and systems of rapid focusing and zooming for volumetric 3D displays and cameras
This invention relates in general to methods and systems of rapid focusing and zooming for the applications in the projection of volumetric 3D images and in the imaging of 3D objects. Rapid...
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7898712 |
Risley integrated steering module
A Risley integrated steering module is disclosed. The beam steering device consists of an outer assembly rotatable about an axis, and an inner assembly rotatable about the axis and positioned...
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7835054 |
Optical architecture having a rotating polygon for use in imaging systems
An optical architecture comprises a refractive cylinder that is movable relative to the incident light. By moving the refractive cylinder, the output light from the refractive cylinder is capable...
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7826117 |
Beam irradiation apparatus
An attachment lens is arranged in a stage subsequent to a scanning lens. After a laser beam is converged by the scanning lens, the laser beam is converted into a parallel beam by the attachment...
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7810932 |
Display device and method thereof
Disclosed is a display device adapting a resolution improvement device capable of effectively improving a resolution in a projecting display device and a method thereof. A display device according...
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7813019 |
Optical scanning actuator
An optical scanning actuator includes a leaf spring member that has a base end fixed and a tip end, a light source that is fitted to the leaf spring member, an electromagnetic driving unit that...
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7808688 |
Apparatus and method of capturing images from alternative media types
A method and apparatus to permit digital capture of images from both transmissive and reflective media. A laser or other source of excitation radiation is coupled to a mounting surface to be in...
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7773277 |
Beam irradiation apparatus
A light refracting element formed in parallel plate shape is attached to a support shaft of a mirror holder, a semiconductor laser and a PSD are disposed at positions between which the light...
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7773281 |
Beam irradiation apparatus
A beam irradiation apparatus includes: an optical element which changes a travel direction of a laser beam by being rotated in a predetermined direction; an actuator which rotates the optical...
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7768686 |
Light-beam-scanning system utilizing counter-rotating prism wheels
A light-beam-scanning system includes two counter-rotating prism wheels. Each prism wheel has a set of prisms at its periphery, selected so that prisms of equal half-angle deflections are...
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7742212 |
Precision laser machining apparatus
A focused laser beam having an optical axis passes sequentially through a simple, positive lens, a pair of plane, parallel windows, and a second, simple, negative lens. Each of the plane, parallel...
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7729030 |
Optical retro-reflective apparatus with modulation capability
An optical MEMS retro-reflective apparatus with modulation capability having a retro-reflecting structure including a pair of reflective surfaces; and a MEMS device for moving at least one of the...
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7719738 |
Method and apparatus for reducing laser speckle
An apparatus and method for reducing speckle of a laser beam is disclosed. The apparatus includes a light guide, a highly reflective mirror at the input face of the light guide and a...
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7692837 |
Deflection device and imaging apparatus
A deflection device includes a tabular object for transmitting or reflecting an electromagnetic wave, a drive unit for driving the tabular object so as to rotate or perform a translation motion,...
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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 L1 for converting angular information about light rays from a object, a focusing element L3 for focusing the light rays from the object to the...
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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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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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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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6970283 |
Micromirrors array with improved light throughput
A micromirror array device comprising at least two of a plurality of zones of separately controllable tiltable reflecting elements, each of the tiltable reflecting elements of a zone being capable...
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6661393 |
Scanned display with variation compensation
A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A light source emits light toward the scanning assembly such that the scanning...
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6653621 |
Frequency tunable resonant scanner and method of making
A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable...
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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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6522441 |
Micro-optical system for an auto-focus scanner having an improved depth of field
A micro-optical system with autofocus capability utilizing micro electro-mechanical systems (MEMS) to vary the focus of the beam achieving increased depth of field and improved poor quality...
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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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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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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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6075597 |
Method for coupling narrow-band, Fabry-Perot, etalon-type interference filters to two-mirror and catadioptric telescopes
A means for examining the sun in monochromatic light in which the separation of the mirrors of either a catadioptric, or pure two-mirror, telescope is altered to produce a virtual object for a...
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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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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=2k directions. The switch can steer the light through the deflectors ...
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5850307 |
Scanner system having a dual trace spinner
The present invention encompasses a scanning optical system such as internal drum photoplotters that has a raster scanner for advancing a circularly polarized optical beam across a substrate...
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5825523 |
Linear beam steering device
A device for linear beam steering, where a translation of one grating respective the other one results in an increased angular deviation of the light beam. The device includes at least one pair of...
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5786911 |
Optical scanning apparatus utilizing linear polarized beams
An optical scanning apparatus is equipped with a light source for outputting a scanning beam having a single fixed direction polarization component. A polarization control element is provided for...
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5724171 |
Optical scanning apparatus
Optical scanning apparatus is disclosed wherein a plurality of reading heads are mounted on a rotating support, and a light source directs light through an optical beam switching means which...
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5633745 |
To drive the optical system independently by CPU in flatbed scanners
An optical system for a flatbed scanner, including a first optical unit to emit light onto a document and to reflect the image of the document, a second optical unit to receive reflected light from...
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5570224 |
Optical scanning apparatus
An optical scanning apparatus includes: a light source for emitting a laser light ray; a cylinder lens for converting the laser light ray into a first convergent light ray that converges only in a...
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5526167 |
Scanning device
Scanning device for optically scanning symbol codes, such as bar codes, comprising a laser source for producing a scanning beam, a detector for detecting light backscattered by the scanned symbol...
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5475523 |
Disk for light beam recording device and light beam recording device
A light beam recording device. A light beam irradiated from a light beam irradiating device is scanned onto an object to be illuminated, which is provided in a vicinity of a focal position, while...
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5450228 |
Read-write head for an optical tape recorder
The present invention provides a read-write head for an optical tape recorder comprised of a synchronized scanning transmissive polygon and rotating lens wheel. The transmissive polygon is a...
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