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7118233 |
Polygon mirror drive motor
A polygon mirror drive motor according to the present invention comprises a stator and a rotor having a hexahedron-shaped polygon mirror and a rotation drive shaft. The polygon mirror in one...
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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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6543694 |
Extended coverage barcode scanner
A spinner for a barcode scanner includes a plurality of mirror facets arranged oppositely in pairs in a polygon, with adjoining facets having different angles of inclination and different lengths...
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6449036 |
Sensor unit, process and device for inspecting the surface of an object
A sensor unit ( 50 ), a device, and a process for inspection of a surface ( 10′, 10 Δ) of an object ( 10 ) for the purpose of identifying surface characteristics, such as structural defects. The...
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6185029 |
Optical scanner and electrophotographic printer employing the same
An optical scanner comprises a light source, a polygon mirror having plural light deflection faces for deflecting a light flux emitted from the light source, a first optical system for introducing...
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6094287 |
Wobble correcting monogon scanner for a laser imaging system
Disclosed is an optical scanner assembly for producing an image on imaging material positioned on an internal surface of a curved film platen. The scanner assembly includes a light source for...
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5986793 |
Optical apparatus
An optical apparatus has a holder which integrally holds a light source for emitting a divergent beam, and a finite focus lens (or a collimator lens) for converting the divergent beam to a...
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5982527 |
Inertial stabilization of rotational optical scanners
Method and apparatus are disclosed for stabilizing an optical scanner having a rotational axis and a substrate with facets which are generally pyramidal, the outer diameter of the facets being...
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5962838 |
Barcode scanner with manually switchable scan patterns
A scanner with multiple modes of operation producing two or more distinct scan patterns, with each scan pattern optimized for different modes of operation with a manually actuated switching...
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5946124 |
Laser scanning unit having a noise reducing portion
A laser scanning unit includes an emitting portion for emitting laser beams, a deflecting portion having a plurality of mirror surfaces at its side portions to deflect the laser beams upon a...
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5801870 |
Light exposure and illuminating apparatus
A light exposure illuminating apparatus is provided which, employing harmonics of a continuously outputted laser beam, is small-sized, inexpensive and free from speckles and which achieves a high...
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5757535 |
Optical scanner
An optical scanner in which light beams from a light source are made incident in such a manner as to extend over a plurality of reflecting surfaces of a rotating polygon mirror, comprising: a light...
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5621561 |
Laser scanner incorporating variable focus mechanism for rapidly changing beam spot size
An apparatus for rapidly varying the spot size of a scanned imaging laser beam comprises a focusing device (e.g. focussing and collimating lens arrangement) and a beam displacement control device...
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5619363 |
Laser optical system
A laser optical system for scanning a laser beam using a rotary polygonal mirror made of plastics. In the laser optical system, a portion close to the edge on the side along the rotary direction of...
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5453870 |
Optical scanning system
An optical scanning system is provided which includes a light source, a scanning deflector which deflects a bundle of rays emitted from the light source, and a scanning lens system which converges...
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5387996 |
Method of obtaining a narrow field of view scan
Disclosed is a scanning device (10) having a very fast raster scan and a small angle field of view. The scanning device (10) incorporates a rotating polygon scanning wheel (12) in which a beam of...
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5373390 |
Optical scanning system
The present invention relates to an optical scanning system for deflecting a light beam from a light source by a rotating deflector, reflecting the deflected light beam onto an fθ mirror having...
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5363231 |
Light deflecting device
A light deflecting device for deflecting a light beam comprises a rotational mirror having two reflecting surfaces for reflecting the light beam, a rotational mirror mounting portion, biasing means...
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5315428 |
Optical scanning system comprising optical chopper
Optical scanning system to scan a code on an object comprising a laser source (1), a laser beam shaper (2) receiving a laser beam from the laser source and focussing the laser beam on the object, a...
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5309274 |
Optical beam scanning apparatus
An optical beam scanning apparatus of this invention includes rotary optical element rotating on an axis of rotation and guiding optical beams incident parallel to the axis of rotation to a...
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5286961 |
Bar code reader producing two groups of vertical scan lines and two groups of inclined scan lines on a plane normal to the read window
In a bar code reading apparatus, a laser beam emitted from a laser beam source disposed in a casing is reflected by a rotational mirror to scan a bar code. The reflected laser beam is reflected by...
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5239403 |
Optical deflector device for deflecting laser beam
An optical deflector is employed in an optical unit incorporated in a laser beam printer. The optical deflector reflects a laser beam, which is generated by a laser diode toward a photosensitive...
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5235454 |
Light beam scanner
A light scanning device has a laser beam generator, a reflecting mirror supported by a rotatable device and a driving mechanism for driving the rotatable device. The rotatable device includes a...
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5196956 |
Beam deflector and laser beam printer using only two inclined reflecting surfaces
A beam deflecting device for scanningly deflecting a beam, comprising a rotational mirror for reflecting the light beam, the rotational mirror having two opposite side surfaces effective to reflect...
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5194981 |
Light scanning apparatus
A light scanning apparatus is disclosed having: a light source portion, a correction deflecting element for finely deflecting a light beam emitted by the light source portion in an auxiliary...
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5179464 |
Polygonal mirror with a reflection film and method for manufacturing the same
A polygonal mirror includes a base body having a circumferential surface composed of a plurality of plane surfaces or a columnar surface, a surface element, formed on the circumferential surface of...
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5179271 |
Compact optical scan pattern generator for bar code reading systems
A compact optical scanning system includes a rotating polygon having a plurality of curved mirror portions and a plurality of mirror facets, a collection mirror member having a pair of reflective...
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5157532 |
Post-objective type optical scanner
A post-objective type optical scanner in which optical flux is converted to condensed light or diffused light by a lens and then scanned on a scanning surface by an optical deflector is constituted...
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5153608 |
Skew and bow correction system for an image scanner
A skew and bow correction system for a line of beam scanning from a source across a photosensitive surface comprises at least one optical element, having an axis along the line of beam scanning....
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5136416 |
Optical scanning unit for use in laser beam printer or the like
In an optical unit for a laser beam printer, a laser beam generated by a laser diode is converted by a group of conversion lenses into a laser beam having a cross section of predetermined-size. The...
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5124830 |
Optical deflector device for deflecting laser beam
An optical deflector is employed in an optical unit incorporated in a laser beam printer. The optical deflector reflects a laser beam, which is emitted by a laser diode and is made to have a cross...
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4848862 |
Laser beam scanner
A laser beam scanner comprising a scanning window through which scanning beams are emitted, a plurality of hologram layers constituting the scanning window, and an optical system for impinging a...
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4828375 |
Lens for scanning devices
It is a lens comprising three elements for a scanning device; the lens is particularly for providing a linear scanning. A beam enters the lens from its front focus by rotating a constant angular...
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4782228 |
High efficiency optical scanner with multiplexing means
An improved optical system having an opto-mechanical scanner for increasing the duty cycle of the scanner while maintaining a constant optical aperture throughout the scan. Two alternating optical...
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4560862 |
System for optical scanning over a large depth of field
A system for optically scanning objects, particularly bar codes over a large depth of field, uses a incandescent light source to illuminate the bar code and scans the field using a rotating polygon...
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4527055 |
Apparatus for selectively viewing either of two scenes of interest
Either of two scenes of interest may be detected by use of a scanning sensor having a rotatable polygonal scanning mirror coupled to receive incident radiation from such scenes of interest....
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4516024 |
Automatically adjustable aperture stop for optical scanning system
In an optical scanning system suitable for use in an aircraft for ground contour measurements, wherein the received image from an illuminated ground spot is reflected from a rotating prism onto...
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4460240 |
Semiconductor laser scanning system
An optical scanning system provides an intensity-modulated, illuminated spot for contour measurements using phase detection. Two semiconductor lasers, which are thermally coupled but are...
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4444457 |
Process and device for the production of a telecentric light beam and use of the process
In a device for the production of a telecentric light beam which is to be deflected over a defined region an incident light beam impinges upon a rotating plane mirror. The light beam reflected...
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4418989 |
Apparatus for shifting the wavelength of light
A light beam is reflected back and forth between a rotating body having a retroreflection corner at opposite ends thereof and a fixed mirror to change the wavelength of the light beam by the...
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4241257 |
Scanning microscopic apparatus
A scanning optical system for incrementally generating a composite image of a strip-scanned object. A light beam is swept by a first rotating mirror across the object to scan-illuminate same....
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4215912 |
High speed scanning device for scanning the same area plural times by a beam deflected by a single deflecting surface
A scanning optical system with an improved scanning efficiency wherein a deflection space swept by a beam deflected by a deflecting surface of a deflecting device is divided into plural spatial...
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4196961 |
Optical apparatus for correcting the spherical aberration of a spherical concave mirror
An optical apparatus for use in conjunction with spherically shaped concave mirrors for substantially eliminating aberrations in the reflections from such mirror. The mirror cooperates with a light...
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4170398 |
Scanning microscopic apparatus with three synchronously rotating reflecting surfaces
A scanning optical system for incrementally generating a composite image of a strip-scanned object. A light beam is swept by a first rotating mirror across the object to scan-illuminate same....
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4124269 |
Scanning system with improved radiation energy collecting capabilities
A scanning system for use in an air-borne vehicle and adapted for collecting and focusing radiation received by periodically scanning a strip of the ground from which radiation energy is being...
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4121883 |
Scanning device for radiation beams
A scanning device for light beams, wherein, for the purpose of permitting positional displacement of a scanning light beam to a certain extent in the direction perpendicular to its scanning...
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4084881 |
Light beam scanning device
A prism anamorphic optical system is disposed in the path of deflected beam from a rotatable polygonal mirror or a galvano-mirror. This prism anamorphic optical system includes at least two prisms,...
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4018504 |
Retro-reflective multiple-X optical scanning system
Optical scanning apparatus for scanning and sensing information contained on a label-bearing article includes a light source, a rotatable member having a reflective surface, optical means for...
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4003627 |
POS optical scanning station with slotted planar plate
An optical scanning station includes means for generating a predetermined scanning pattern along a given plane, and a member embodying said scanning pattern in the form of open slots substantially...
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3814495 |
APPARATUS FOR PRODUCING A MOVING BEAM DISPLACED PARALLEL TO ITSELF
A scanning device with rotatable plane mirror surfaces movable about the radius of curvature of a cylindrical mirror and positioned to pass through the focal plane of the cylindrical mirror. A...
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