Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7142257 | Laser projection system Laser projection system suitable for commercial motion picture theaters and other large screen venues, including home theater, uses optical fibers to project modulated laser beams for simultaneously raster scanning multiple lines on screen. Emitting ends of optical ... | 11/28/2006 |
| 7129971 | Rotating scan self-cleaning camera A scanning camera with a rotating drum has one or more sensors characterized by a non-radial optical axis. With two sensors on opposite sides of the drum and facing in substantially the same direction, stereoscopic recording of a panorama is accomplished as the drum... | 10/31/2006 |
| 6945652 | Projection display device Light beams having different wavelengths emitted from red and blue semiconductor lasers and a laser diode pumped green solid-state laser are incident on respectively different surfaces of a color combining element and are overlaid on a single light path. Multiple be... | 09/20/2005 |
| 6493021 | Image acquisition by push-broom scanning An improvement to a method of acquiring and processing a satellite observation image of the earth through the use of one strip or a matrix of charge coupled device type detectors. As the detectors travel over an observed zone, a plurality of pixels are ac... | 12/10/2002 |
| 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 is remapped electronically or in software to compensate fo... | 05/29/2001 |
| 6215522 | Method of acquiring an image by push-broom scanning A method of acquiring and processing a satellite observation image of the earth by means of at least one strip or a matrix of detectors of the charge transfer type travelling over an observed zone, in which a plurality of pixels are acquired, which pixels... | 04/10/2001 |
| 5661667 | 3D imaging using a laser projector A method for generating 3D data of an object using a laser projector uses the steps of calibrating at least two laser projectors to a known coordinate system relative to an object; projecting a first laser beam along a path to a point on the object; placi... | 08/26/1997 |
| 5381258 | Laser projector for projecting an image onto a curvilinear surface A laser projection system for projecting an image onto a surface comprises a laser projector operably connectable to a computer. The computer controls the operation of the system. The laser projector comprises a laser beam source for generating a laser li... | 01/10/1995 |
| 4797749 | Scanning system with tunable resonant actuator A surface-scanning system of the kind that defines an optical path and has a scanning assembly comprised of X and Y angularly oscillating scanners for deflecting a portion of the path, and first and second optical elements aligned with stationary portions... | 01/10/1989 |
| 4556901 | Method for scanning a plurality of scanning lines at the same time A method for scanning an original picture photoelectrically to obtain picture signals consecutively, whereby recording a reproduction picture in a picture scanning reproducing machine such as a color scanner and a color facsimile, wherein a plurality of s... | 12/03/1985 |
| 4393408 | Optoelectronic device for rotary scanning of videofrequency images The optoelectronic rotary scanning device comprises optical receiving means, optical elements driven together in rotation by an afocal system consisting of at least two cylindrical optical elements designed to rotate about an axis perpendicular to the pla... | 07/12/1983 |
| 4266252 | Lens system for document scanning A lens system for scanning a document positioned on a flat support. The lens system operates in cooperation with apparatus which scans a beam of illuminating light across the document and a scanning mirror, which directs reflected light from the illuminat... | 05/05/1981 |
| 4241343 | Display apparatus A display apparatus may be constructed by imparting motion to the light from a small light source to give the appearance of a line, causing the light to be "off" and "on" as desired during traverse of a line length, using as many light sources as needed f... | 12/23/1980 |
| 4222065 | Method and apparatus for scanning and for electronic processing of thermal pictures A scanning arrangement in which the scanning speed at right angles to line direction is selected so that every line becomes scanned anew by the following element in picture direction. Reproduction is carried out by way of a series arrangement of luminous ... | 09/09/1980 |
| 4219704 | Record playback apparatus for optical data records Multi-layered optical data records and playback apparatus are described in which a plurality of optical data layers are provided on at least one side of a record substrate and the playback apparatus scans data tracks on such layers with a light beam to pr... | 08/26/1980 |
| 4180306 | Method of and device for scanning thermographic pictures A method of and device for scanning thermographic pictures according to which an oscillating or rotary movement of an optical element of an optical system of a scanning device serves for scanning in a first direction, e.g., in the horizontal direction, an... | 12/25/1979 |
| 4165464 | Light scanning system A light scanning system is described, comprising a circular disk having a plurality of zone-type lenses, where each of the zone-type lenses converges an incoming light beam toward a corresponding focal point, and when moving said circular disk and said in... | 08/21/1979 |
| 4163600 | Light beam scanner Multi-layered optical data records and playback apparatus are described in which a plurality of optical data layers are provided on at least one side of a record substrate and the playback apparatus scans data tracks on such layers with a light beam to pr... | 08/07/1979 |
| 4095257 | Orbiter for pyroelectric focusing devices Infrared light from an object directed into a thermal imaging television camera by a lens is passed through an angularly mounted rotating plate to impart orbital motion to the image received upon the image plane of the camera. A variable speed drive is op... | 06/13/1978 |
| 4061415 | Nutating radiation deflecting method and apparatus There are disclosed radiation deflection method and means for controlling the direction of travel of radiation which is subject to refraction, such as light and sound radiation. The deflection method and means, which are particularly adapted for effecting... | 12/06/1977 |
| 3956586 | Method of optical scanning Several embodiments of an optical scanning system are disclosed which employ an accessible entrance pupil interposed between an image and a scanning device for isolating rays of light from the image without focusing the rays, thereby eliminating the aberr... | 05/11/1976 |
| 3934137 | Optical scanning device In an optical scanning device in which radiation beams from different zones of a field of view are consecutively converged onto a radiation sensitive detector, an optical projection system is included in the radiation path between an objective and an opti... | 01/20/1976 |
