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6891182 Apparatus for automatically detecting size to be detected and automatic analyzer using the same  
In the automatic analyzer, the height of the test tubes is measured using the function of the optical information reader installed for discrimination of a sample. Various sensors installed so as...
6849860 Detection system and a detection method  
The invention relates to a detection system and a detection method for the detection and tracking of optical codes on objects which are transported along a monitored zone, comprising a plurality...
6774374 Isolation mounts for use with vacuum chambers and their application in lithographic projection apparatuses  
A reference frame provided in a vacuum chamber is supported by support pillars extending through and isolated from the vacuum chamber walls to isolate the reference frame from vibrations in the...
6618132 Miniature laser tracker  
This small, inexpensive, non-contact laser sensor can detect the location of a retroreflective target in a relatively large volume and up to six degrees of position. The tracker's laser beam is...
RE37925 High speed imaging apparatus for CCD based scanners  
A high speed imaging apparatus for CCD based scanners comprises a housing having separate compartments which complement modular assemblies installed therein. A decoder compartment houses...
6465787 Covert surveillance system for tracking light sensitive tagged moving vehicles  
A surveillance system uses pulsed laser near infrared light to illuminate a retroreflecting tag attached to a target for providing a return image that pulsates and that can be monitored by a...
6410931 Electro-optical reader with hands-free and hand-held modes of operation  
An optical scan module, for example for an optical scanner, includes an integrally molded plastics material member which defines not only the laser focusing lens, but also the laser focusing...
6225641 Optical reader for scanning optical indicia by movement of an aperture relative to an image plane  
An optical reader for reading optical indicia which includes an imaging element for forming an image of the optical indicia at an image plane. The optical reader further includes an aperture...
6177683 Portable viewer for invisible bar codes  
A portable viewer for viewing bar codes and other markings printed at least in part with invisible inks includes a light source for illuminating and exciting the ink of the bar code, a camera for...
6073851 Multi-focus optical reader with masked or apodized lens  
A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and...
6060722 Optical reader having illumination assembly including improved aiming pattern generator  
An optical assembly for use with optoelectronic readers. An imaging optical assembly having an imaging optical axis forms an image of a two-dimensional region on an optoelectronic imaging device....
6042012 Method and apparatus for reading images without need for self-generated illumination source  
A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and...
6021946 Self-focusing bar code reader and optical receiving system  
The invention relates to an optoelectronic sensor, in particular a bar code reader, with an optical receiving system positioned in front of a light receiver for the deflection of a light beam...
6017125 Bar coded retroreflective target  
This small, inexpensive, non-contact laser sensor can detect the location of a retroreflective target in a relatively large volume and up to six degrees of position. The tracker's laser beam is...
5991102 Beam protecting device  
A beam projecting apparatus which includes a light source emitting a laser beam; and a beam projecting device which includes a beam projecting portion from which the laser beam is projected...
5969323 Noise-reduced electro-optical readers with optical bandpass filter  
An optical reader for reading indicia such as bar codes comprises a first and second light source for generating first and second light beams of mutually orthogonal polarization orientations, and...
5945670 Optical system for data reading having large depth of field  
An optical system and method for data reading in which a light source generates an optical beam directed toward an object to be read and a variable aperture mechanism positioned in the outgoing...
5814802 High speed imaging apparatus for CCD based scanners  
A high speed imaging apparatus for CCD based scanners comprises a housing having separate compartments which complement modular assemblies installed therein. A decoder compartment houses...
5814803 Image reader with multi-focus lens  
A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and...
5777311 Optoelectronic a device employing a digital filter which operates in different coefficient sets  
An optoelectronic device for identifying a mark having a defined contrast pattern includes a transmitting element for emitting a beam of transmitted light. A deflector unit periodically guides the...
5770847 Bar code reader with multi-focus lens  
A method and apparatus are provided for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader comprises an efficient optical...
5744790 Split optics focusing apparatus for CCD-based bar code scanner  
A bar code scanner comprises a radiant energy source for generating a radiant energy beam of a given configuration, a detector for generating output electrical signals indicative of radiant energy...
5717221 Multiple laser indicia reader optionally utilizing a charge coupled device (CCD) detector and operating method therefor  
An electro-optical scanning device reads indicia having parts of different light reflectivity, including bar codes and matrix arrays such as UPSCODES. The scanning device includes laser or light...
5696370 Bar code scanning system for automatically calculating the optical power output levels of the light source  
A system for bar code reading and scanning is provided having automatic bar code signal size control. The scanner includes a processor which calculates, in response to a signal power level of the...
5693929 Scanning module with spring made resistant to overflexing  
An elongated, flexible, generally planar spring used for mounting an oscillatable scanning component in an electro-optical scanning module for reading coded indicia is rendered resistant to over...
5691534 Digital signal ouput device having a transparent gear wheel  
A digital signal output device including a revolving shaft, a transparent gear wheel fixedly mounted around the revolving shaft and turned by it, the transparent gear wheel having a plurality of...
5641958 Optical system for data reading having wide range of focus  
An optical system and method for data reading in which a light source generates an optical beam directed toward an object to be read and a variable aperture mechanism positioned in the outgoing...
5598007 Symbology reader with fixed focus spotter beam  
A symbology reader having a pair of optical sources for producing cursor beams. The cursor beams are emitted from two spaced apart locations on the reader and angled with respect to an image...
5585616 Camera for capturing and decoding machine-readable matrix symbol images applied to reflective surfaces  
The present invention relates to a method and an apparatus for enhancing the optical image of information-containing symbols captured off reflective surfaces/using a conventional optical scanning...
5576531 Hand held bar code scanning device having a manually operated optical trigger switch  
A hand held bar code scanning device includes scanning circuitry to conduct bar code scanning and a manually actuated optical trigger switch, connected to the scanning circuitry, to initiate bar...
5541397 Hand held bar code scanning device having a manually operated optical trigger switch  
A hand held bar code scanning device includes scanning circuitry to conduct bar code scanning and a manually actuated optical trigger switch, connected to the scanning circuitry, to initiate bar...
5541419 Symbology reader wth reduced specular reflection  
A symbology reader which reduces the effects of specular reflection. A plurality of illumination sources emit light toward a target object. A first polarization filter receives the unpolarized...
5507527 Two dimensional code for processing data  
A system for reading two-dimensional code marks on an article includes a camera for imaging the marks and signal processing means coupled to the camera for processing information contained in the...
5506411 Optical reader with improved response to change in reflected signal  
An optical reader, such as a bar code reader, includes improved circuitry to enable the bar code reader to respond more quickly and more accurately to signal variations due to changes in the...
5498868 Optical data reader capable of quickly changing a condensing position of a light beam  
An optical data reader including a device for producing a light beam, and a device for changing a condensing position of the light beams before the light beam is reflected from a target such as a...
5491346 Anamorphic lens system for a hand-held symbology reader  
A portable symbology reader utilizing an anamorphic lens system. The anamorphic lens system allows a low cost, high volume CCD sensor to be used in a hand-held, point and shoot, portable imaging...
5479026 System having optically encoded information  
A optical system having optically encoded information includes a microptic multiplet (MOM) optical system on compact arrays or cards for both secure (encrypted) and non-secure applications where...
5479011 Variable focus optical system for data reading  
An optical system and method for data reading in which a light source generates an optical beam directed toward an object to be read and a variable aperture mechanism positioned in the outgoing...
5479164 Photonic data compression system and method  
A photonic system for compressing and decompressing data using a hologram that converts a plurality of spatially modulated light beams into a single reference beam that has a wavelength unique to...
5404009 Integrated optical information detector for an optical information processing apparatus with a plurality of photo detecting strips and a common bonding pad  
An information processing apparatus such as an optical disc device which is provided with an integrated photo detector for transducing a reflected light beam from an optical information medium to...
5376780 Method of and arrangement for reading a bar code on photographic material  
A bar code is scanned to generate a signal which is representative of the bar code and contains a series of maxima and minima. The signal is sampled to detect the maxima and minima corresponding...
5347121 Variable focus optical system for data reading  
An optical system and method for data reading in which a light source generates an optical beam directed toward an object to be read and a variable aperture mechanism positioned in the outgoing...
5345089 System and method for optical scanner sensitivity adjustment  
An optical scanning system comprises an optical scanner, a first circuit for generating a reference pulse and a second circuit for comparing a benchmark pulse scanned by the scanner to the...
5332892 Optical systems for bar code scanners  
The invention facilitates operation of a bar code reader over a wider range of working angle, a wider range of distances from the bar code and a wider range of bar code densities. The invention...
5321436 Franking machine with means for checking operation of printing elements  
A franking machine in which the franking impression is printed by means of an ink jet print head. In order to determine whether all the ink jet nozzles are functional all of the nozzles are...
5317166 A system for decoding bar coded labels upon different size containers  
A system apparatus for altering the depth of field of a lens mechanism for use with a bar code. The altering of the mechanism allows different focal points and increased depths of field to be...
5298728 Signal processing apparatus and method  
A signal processing apparatus and method adapted for use in bar code scanners is described. The apparatus forms a derivative signal, and utilizes the derivative signal to detect transition points...
5291028 Optical device for sensing marks on a surface using green light impinging at least sixty-five degrees to the normal  
An optical device for sensing marks carried on an area to be sensed of a medium, especially printed and/or handwritten patterns, is disclosed. Sensing of marks is accomplished by inclined...
5260554 System for automatically reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scanner  
A bar code label is read by automatically initiated scanning of the bar code symbol by a beam of light, as from a laser in a bar code scanner. Initially, the scanner is operated in a pulsed mode...
5237161 System for automatically reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scanner  
A bar code label is ready by automatically initiated scanning of the bar code symbol by a scanner on a stand. Light is reflected back to the scanner as from the bars of a code being scanned....

Matches 1 - 50 out of 248 1 2 3 4 5 >