This disclosure provides an optical scanner for transforming an optical image into electrical signals. Through practice of this disclosure an optical image is projected onto a surface of a photosensitive semiconductor body wherein there is established a charge distribution or perturbation or pattern which reflects the variations in optical intensity of the optical image. Through the parametric interaction of simultaneously applied electric field and acoustic wave to each respective portion of th...

An optical scanner to inspect the surface of an object. A laser beam source mits a beam which is reduced in cross section, for mode matching, and caused to rotate by a series of lenses. A collimating lens focuses the rotating beam into a fiber optic cable. The beam, upon emergence from the cable, is reflected to the surface to be scanned by a reflecting cone. A detector, coupled to sensing devices, receives and interprets the surface reflections. The head portion of the cable is mounted in a cra...

The invention is an optical scanner that sequentially focuses optical energy (light) at selected points in space. The essential component of the invention is a scanning wheel including several glass windows with each window having a different thickness. Due to this difference in thickness, the displacement of the emerging light from the incident light is different for each window. The scanner transmits optical energy to a point in space while at the same time receiving any optical energy generat...

A scanning device for a copying machine in which the original to be copied is stationary, the photosensitive paper moves on a conveyor, and a lens carriage moves at half the speed of the conveyor in the direction of its motion. The carriage rolls on wheels which rest on the conveyor and contact a fixed track from below, moving at half the speed of the conveyor because of the frictional contact of the wheels with the two parallel surfaces.

The disclosure relates to an electronic system wherein columns of data to be read out are sampled in predetermined order under control of the scanner to read out information on a column by column basis.

A method and apparatus for eliminating multiple images in an airborne optical scanner which occur because of the widening of the scan path as the scanning beam moves from directly underneath the aircraft toward the horizon on either side of the aircraft, and which causes blurring or loss of resolution for the images falling within two or more scans. The problem is overcome by placing selected apertures in the paths of beams of light modulated by information from associated scanners, so as to res...

This disclosure relates to a static type of opto-electronic scanner for sensing the coded markings of an information field. The scanner includes a source of radiant energy for illuminating the information field, an optical system for directing radiant energy onto the information field and for resolving received radiant energy from the information field into separate images and an electronic pickup means for sampling and scanning the separate images to produce video signals in accordance with the...

The scanner circuit includes a counter that provides sequential scanning pulses. In response to a current pulse, the counter circuit is stopped. The counter is enabled to start a preset number of scanning or counting cycles in a scanning sequence. Prior to the first scanning cycle, a memory circuit presets the counter. At the end of the first scanning cycle the counter presets the memory circuit. The arrangement is such that the first scanning cycle of each new scanning sequence begins at the co...

A device is provided for scanning the field of view of an optical instrument. The device includes a housing for connection to the optical instrument and a scanning means which has freedom to move in any direction to cover the area of an aperture in the housing which communicates with the optical instrument. Holding means releasably fix the position of the scanning means with relation to any given portion of the aperture and, therefore, the field of view. Interchangeable optical means may be moun...

An optical scanner for orthogonal scanning in read and/or write modes has a framing mirror (20) for linear vertical scanning and a rotating disc (30) with a circular array of concave reflectors (32) for horizontal scanning. Primary imagers (24, 164) focus the linear vertical scan onto a strip mirror (26) which reflects the scanned pixels to the concave reflectors. Preferably, the concave reflectors reflect the pixel image in a collimated beam which is focused by a collection optic (38, 200) onto...