Matches 101 - 150 out of 265 < 1 2 3 4 5 6 >
Match Document Document Title
5724173 Optical scanning device  
The present invention relates to an optical scanning device for scanning picture elements of a sheet of paper, comprising: a first moving element, carrying a light source and a mirror and being...
5717512 Compact image steering and focusing device  
A compact image steering and focusing device has a generally rectangular frame containing a pan/tilt mirror and at least one lens. There is a tilt plane bisecting the frame. A mirror drive motor is...
5712720 Lens switching apparatus for dual-lens optical scanner  
A lens switching apparatus for a dual-lens optical scanner includes a base, a plurality of magnetic elements, a plurality of electromagnetic elements, a guiding assembly and a slide block. Two...
5671080 Optical system scanning with a mirror for electronic image pickup apparatus  
An optical system comprising, in order from the object side, a rotating mirror which functions to deflect an optical axis for rays coming from an object point and scan fractions of an image, an...
5663554 Weak lens focus adjusting mechanism based upon thickness of scanned material and imagesetter using same  
An adjustable focusing apparatus in a scanning device is used in imagesetters, scanners, and platemaking devices to focus a scanning beam on an element to be scanned. Precise focusing is achieved...
5636049 Mechanism for scanning the inner periphery of a drum included in an image forming apparatus  
In an image forming apparatus, a mechanism for scanning the inner periphery of a hollow cylindrical drum has stationary optics including two semiconductor lasers fixed in place. The two lasers have...
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...
5621563 Method and apparatus for positioning a focusing lens  
A scanning apparatus providing separate fixed focal planes for transmissive and reflective original documents to be scanned, wherein a scan carriage containing illumination, sensor, and optical...
5615038 Scanning optical device with aberration compensation feature  
A scanning optical device for scanning a material to be scanned with a beam emitted from a light source thereof, has a storage device for storing information relating to the quantity of deviation...
5610755 Lens changeable image scanner and lens position control device in the same  
A lens position control mechanism and method in an image scanner converts a reading line density by changing over lenses. A base rotatable in a plane parallel to an original table is provided, and...
5610754 Method and apparatus for photolithography by rotational scanning  
A photolithography method copies a pattern plane onto a working plane by a rotating imaging system. The pattern plane is parallel to the working plane. At a given instance, the imaging system...
5606449 Optical scanning device  
An optical scanning device includes a laser source, an optical deflector which deflects scanning beams emitted from the laser source in a main scanning direction toward an object to be scanned, and...
5596445 Light scanning system  
In a light scanning system, a semiconductor laser outputs a laser beam which diverges with a beam divergence angle. A condensing/scanning optical system condenses the laser beam and causes the...
5596444 Optical apparatus having laser beam diameter variable according to image data  
Image data input from a host computer is converted into data BDATA corresponding to a beam diameter at an image control circuit. BDATA is input into a voice coil 21 driving a collimator lens...
5592324 Cylindrical inner surface scanner and imaging control method in cylindrical inner surface scanner  
A holder (10) is movably inserted in a through hole (22A) of a base portion (22) of a scanning head which is movable along a central axis (27) of a cylindrical inner surface drum, through a ball...
5583686 Lens assembly installation of scanner  
A lens assembly installation of scanner comprises a sliding base being movable inside the scanner horizontally and longitudinally on which is disposed a projection lamp, a light filtering lens...
5535041 Device for stabilizing the reflectivity of mirrors having phase conjugation through stimulated brillouin scattering at high pulse repetition rate  
A phase conjugation mirror including a non-linear medium (1) and a focusing lens (2), in which a beam to be reflected (F1) is displaced relative to a non-linear medium. The displacement is obtained...
5535040 Lens changeable image scanner and lens position control device in the same  
In an image scanner, a lens position control mechanism and method converts a reading line density by changing over lenses. A base rotatable in a plane parallel to an original table is provided, and...
5506719 Optical scanning device  
An optical scanning device for leading a laser beam emitted from a semiconductor laser diode through a collimator lens, an imaging lens, and a cylindrical lens to a plurality of reflecting surfaces...
5504613 Optical scanner  
In an optical scanner, a light beam from a light source device is formed by a linear image forming optical system as a linear image extending in a main scan-corresponding direction. The light beam...
5481392 Axial mirror scanner system and method  
A high speed rotating optical scanning system uses a mirror within an optically transparent cylinder. A plane of the mirror passes through the axis of rotation of the cylinder. The cylinder and...
5469290 Two-element zoom lens for beam separation error correction  
A raster output scanner is disclosed which utilizes a spot separation error correction system prior to its rotating polygon mirror. The spot separation error correction system of this invention is...
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...
5440419 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...
5398082 Scanned illumination for light valve video projectors  
A video projection system employs a reflective light valve (10) that is optically addressed by an image from a cathode ray tube (12) and provides an output image for projection by means of a high...
5392157 Line-of-sight steering system for high power laser beams and method using same  
In accordance with the teachings of the present invention, a system and method are provided for steering a beam of optical radiation. The system includes a dividing telescope microlens array for...
5374817 Pre-objective scanner with flexible optical support  
To reduce the size and weight of an optical scanner, the present invention provides a mirrorless beam scanning unit. A flexible support structure, such as one or more strips of mylar, movably...
5331651 Method and apparatus for adjusting the wavelength in an optical device and laser using the method  
In a method and a corresponding apparatus for adjusting the wavelength in an optical device, a wavelength selective filter element, for example a Fabry-Perot etalon, whose wavelength characteristic...
5321684 Bidirectional sinusoidal scanning system  
In a preferred embodiment, the invention relates to systems and methods for storing digital video information on an optical recording medium comprising the steps of moving the optical recording...
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...
5303080 Beam scanning system including actively-controlled optical head  
Beam scanning system that incorporates an actively-controlled optical head, wherein a light beam source and collimating optics are mounted in an active, thermally-compensated assembly. A...
5276546 Three dimensional scanning system  
A part scanning and part calibration method for the inspection of printed circuit boards and integrated circuits includes a camera and two rotating mirrors to scan an image of a pattern mask...
5276544 Two element optical system for focus error correction in laser scanning systems  
A raster scanning system is disclosed which utilizes a focus error correction system for correcting a focus error both in the fast-scan plane and in the cross-scan plane without affecting the scan...
5257125 Afocal optical system for focus error correction in laser scanning systems  
A raster scanning system is disclosed which utilizes a focus error correction system and a pre-polygon cross-scan cylindrical lens for correcting focus error both in the fast-scan plane and in the...
5253245 Optical data storage tracking system  
An optical data storage system comprises an optical data storage medium, a moveable optical head, and a fixed optical system. The fixed optical system comprises a focussing system and a fine...
5216534 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...
5179463 Simultaneous multibeam scanning system  
A dual, simultaneous beam scanning system for simultaneously scanning two individually modulated adjacent scan lines on an internal drum imaging surface uses a deflector which varies the angular...
5173796 Three dimensional scanning system  
A part scanning and part calibration apparatus and mechanism for the inspection of printed circuit boards and integrated circuits include a camera and two rotating mirrors to scan an image of a...
5170277 Piezoelectric beam deflector  
Several embodiments are disclosed of bar code readers in which one or more piezoelectric bimorph elements are utilized as a drive element in the optical system thereof. In different embodiments,...
5159483 Projecting and exposing device  
A projecting and exposing device includes a light source and a device for projecting light emitted by the light source to a mask. At least one inverting or erect projecting optical system is...
5153437 Optical encoder having a transparent lens plate with an array of lenses  
An optical encoder is used for detecting the position, speed, acceleration etc. of a moving or rotating object. The optical encoder includes a light source, a collimator lens for collimating a...
5144120 Mirrorless scanners with movable laser, optical and sensor components  
In bar code symbol scanning systems employing laser, optical and sensor components, a mirrorless scanner arrangement mounts one or more of these components on a drive for repetitive reciprocating...
5140151 Day/night sight including a beam combiner and a pivotable mirror  
A dual function day/night sight for rifles and the like having a unified body. The sight comprises a housing incorporating a power supply, an eyepiece and objective lenses for producing a target...
5083302 Optical tracking servo apparatus  
A tracking servo apparatus for performing a control so that a light beam is irradiated onto a predetermined track of an information recording surface of a disc shaped recording medium comprising an...
5074628 Laser beam scanning device and method for operation thereof  
A laser scanning device and a method for operation thereof includes a laser source, and a laser beam deflector assembly. The laser beam deflector assembly includes a motor driven hollow shaft. The...
5054866 Scanning optical apparatus  
A scanning optical apparatus includes an image forming unit disposed between a medium to be scanned and a diflective reflection surface of a rotary polygon mirror so as to make a light beam...
5026133 Large format laser scanner with wavelength insensitive scanning mechanism  
A large format laser scanning system is disclosed that incorporates a compact, wobble free and wavelength insensitive scanning mechanism. The scanning mechanism includes a pentaprism and lens...
4932732 Optical scanning apparatus  
An optical scanning apparatus includes a light source and a polygon lens. The polygon lens consists of a plurality of cylindrical lenses. Each cylindrical lens has an inner concave surface and an...
4891799 Optical head apparatus for writing and reading data on an optical disk having a lens with an inclined optical axis  
An optical head apparatus is adapted to write and read data onto and from an optical disk using an optical beam emitted from a light-emitting element. Such an optical head apparatus includes: a...
4861144 Field correction apparatus  
An optical system is provided implementing a field correction apparatus. The system includes a rotating support driven by a motor. A plurality of focussing lenses are circumferentially spaced about...
Matches 101 - 150 out of 265 < 1 2 3 4 5 6 >