An electrooptical scanner includes an optical system having mirrors for directing light from one side of a document through a lens to a charge coupled device and from the other side of the document through the same lens to a different charge coupled device. The scanner scans both sides at the same time using a straight paper path.

An optical scanner for imaging lines in an object plane (10) onto a linear array (18) in a focal plane (16) either continuously or discretely and comprising a set of four mutually perpendicularly oriented plane corner mirrors (28, 30, 32, 34) providing a reflecting path (L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5) describing a parallelogram and a plane parallel scanning mirror (22) with a front and back reflecting surface (M.sub.o, M.sub.oo) located mid-way between the first and fourth corner m...

A coded representation of a verification number is printed in a bar code strip. The strip is embedded in a face of a die. The face is scanned by a scanner that is programmed to provide an indication that the coded representation is printed on the strip.

An optical scanner according to the present invention comprises a collimator lens, a cylindrical lens, a light deflector, an f-.theta. lens and an anamorphic lens. The f-.theta. lens is constituted by three groups of five lenses, i.e., a first cemented lens formed by bonding a first lens and a second lens to each other, a second cemented lens formed by boding a third lens and a fourth lens to each other and a fifth lens having positive refracting power. The f-.theta. lens is formed to satisfy re...

A pulse-echo sonar scanner for a mobile robot includes a transmitter which generates a pulse signal, an acoustic transducer which transmits and receives acoustic signals, a receiver, means for determining performance characteristics of the transducer for a given pulse, means for storing the performance characteristics, and means for determining threshold levels for an echo based on the stored performance characteristics.

A film scanner performs a main-scan of a film by an imaging device and performs a sub-scan of the imaging device so as to enable scanning at any resolution using a simple configuration. The scanning mechanism, for the sub-scan of the film with respect to the imaging device, has a transport table for supporting the film held by a film holder and transporting it in a sub-scan direction and a transport mechanism for moving the transport table in the sub-scan direction. The source of the drive power...

The image scanning system of the present invention scans slides and film strips containing photographic images and creates a corresponding plurality of digital representations of the photographic images. The system includes a touch screen monitor, a computer, a scanner, a high speed interface and a printer. The scanner includes a light source for projecting light through the film strip. A light sensor senses the light projected through the film strip and generates pixel data. A film drive advanc...

An analog scanner for the control of various industrial, agricultural and domestic operations and processes comprising at least two pairs of probes utilized for measuring a physical property of a medium therebetween including at least a pair of control signal sources, at least a pair of reference level controllers, at least a pair of sensor selectors, and at least a pair of control actuators. A timing mechanism including a counter is connected to the signal sources for selectively energizing one...

A folded retro-reflective optical scanner using common major optics for both scanning and reading and achieving a long scan line (8.25 inches) with a short throw distance and little bow. Astigmatic effects in the reading beam are minimized by utilizing only the center portion of the return beam for reading.

A duplex scanner comprising a first scanning module, a second scanning module, a transmission mechanism, a power source and a control processing unit is provided. The first scanning module scans a front side of a to-be-scanned document and captures a front side image of the to-be-scanned document. The second scanning module scans a back side of the to-be-scanned document and captures a back side image of the to-be-scanned document. The transmission mechanism moves the to-be-scanned document rela...