Top 100 US Patents in Lenses
section g - physics > optics > optical elements, systems, or apparatus
Sorted by IPQ® Score, an objective measure of patent quality. View scores and methodology at PatentRatings.com. You can also view all by publication date instead.
US4495313 (A), filed
Fri Mar 19 00:00:00 CST 1982
, published
Tue Jan 22 00:00:00 CST 1985
- MIA LENS PROD
Soft contact lenses are made by polymerizing a substantially anhydrous polymerization mixture containing a polymerizable acrylic or methacrylic monomer, and a water displaceable ester of boric acid and a compound containing 3 or more hydroxyl groups so as to...
US4714321 (A), filed
Mon Jul 28 00:00:00 CDT 1986
, published
Tue Dec 22 00:00:00 CST 1987
- FERRANTI PLC
The apparatus permits an external target to be viewed along a sight-line by a sensing device and for the projection of a beam of laser radiation (12) towards the target. The apparatus includes a viewing window (10) transparent to radiation at a wavelength to...
US6321989 (B1), filed
Mon Jul 06 00:00:00 CDT 1998
, published
Tue Nov 27 00:00:00 CST 2001
- METROLOGIC INSTR INC
A novel system and method of programming the function parameters of programmable bar code symbol readers and scanners, while avoiding the need to couple the data communication port of a function parameter computer system and the programmable bar code symbol...
US6439462 (B1), filed
Thu Feb 18 00:00:00 CST 1999
, published
Tue Aug 27 00:00:00 CDT 2002
- METROLOGIC INSTR INC
An automatic bar code symbol reading system for automatically reading bar code symbols on packages transported along a conveyor belt through a 3-D scanning volume. The system includes a holographic-based bar code symbol detector and a bar code symbol scanner...
US6517001 (B1), filed
Wed Feb 16 00:00:00 CST 2000
, published
Tue Feb 11 00:00:00 CST 2003
- METROLOGIC INSTR INC
A laser scanner of ultra-compact and modular design capable of reading bar and other types of graphical indicia, and also a method of designing and operating the same for use in diverse applications.
US6819822 (B2), filed
Thu Dec 28 00:00:00 CST 2000
, published
Tue Nov 16 00:00:00 CST 2004
- ANALOG DEVICES INC
A two-dimensional scanner consists of a rotatable gimbal structure with vertical electrostatic comb-drive actuators and sensors. The scanner's two axes of rotation may be controlled independently by activating two sets of vertical comb-drive actuators. The...
US5815293 (A), filed
Wed May 31 00:00:00 CDT 1995
, published
Tue Sep 29 00:00:00 CDT 1998
- MATSUSHITA ELECTRIC IND CO LTD
A compound objective lens is composed of a hologram lens or transmitting a part of incident light without any diffraction to form a beam of transmitted light and diffracting a remaining part of the incident light to form a beam of first-order diffracted light,...
USRE34955 (E), filed
Fri Feb 26 00:00:00 CST 1993
, published
Tue May 30 00:00:00 CDT 1995
- ADC TELECOMMUNICATIONS INC
US5288987 (A), filed
Thu Sep 24 00:00:00 CDT 1992
, published
Tue Feb 22 00:00:00 CST 1994
- ZEISS STIFTUNG
The invention relates to a high-precision autofocusing arrangement for a stereomicroscope wherein a bar-shaped marking is projected via a cylinder optic on an object. The imaged bar-shaped marking is at least in one dimension less or equal to the resolution of...
US6829417 (B2), filed
Tue Sep 02 00:00:00 CDT 2003
, published
Tue Dec 07 00:00:00 CST 2004
A distributed optical structure comprises a set of diffractive elements. Individual diffractive element transfer functions collectively yield an overall transfer function between entrance and exit ports. Diffractive elements are defined relative to virtual...
US6547144 (B1), filed
Thu Dec 23 00:00:00 CST 1999
, published
Tue Apr 15 00:00:00 CDT 2003
- METROLOGIC INSTR INC
A holographic laser scanning system for carrying out laser beam scanning operations with improved light collection efficiency. The holographic laser scanning system comprises: a housing of compact construction; a plurality of laser beam sources; a holographic...
US5485195 (A), filed
Mon Jun 21 00:00:00 CDT 1993
, published
Tue Jan 16 00:00:00 CST 1996
- XEROX CORP
Fast scan jitter in a ROS scanning system is substantially reduced by use of a multi-phase clock derived from a crystal oscillator. The rising edge of a start-of-scan signal is compared to the clock signal and the phase of that clock signal which is next in...
US4337990 (A), filed
Thu May 27 00:00:00 CDT 1976
, published
Tue Jul 06 00:00:00 CDT 1982
- MASSACHUSETTS INST TECHNOLOGY
Transparent heat-mirrors are disclosed which are comprised of composite films. These films include a discrete and continuous layer of metallic silver sandwiched between a transparent, outer, protective, anti-reflection layer and a transparent, phase-matching...
US4636624 (A), filed
Tue Jan 10 00:00:00 CST 1984
, published
Tue Jan 13 00:00:00 CST 1987
- MINOLTA CAMERA KK
A focus detecting device is provided with first and second line sensors and first and second image forming lenses which are located behind a predetermined focal plane of the objective lens to receive the object lights for forming first and second images on the...
US6375074 (B1), filed
Wed Feb 17 00:00:00 CST 1999
, published
Tue Apr 23 00:00:00 CDT 2002
- METROLOGIC INSTR INC
A holographic laser scanner for scanning bar code symbols, in which a plurality of scanning planes are projected through a plurality of different focal regions in order to provide, at each such focal region, a plurality of scanlines that are substantially...
US6760511 (B2), filed
Thu Feb 14 00:00:00 CST 2002
, published
Tue Jul 06 00:00:00 CDT 2004
- CAPELLA PHOTONICS INC
This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel...
US6474556 (B2), filed
Wed Feb 17 00:00:00 CST 1999
, published
Tue Nov 05 00:00:00 CST 2002
- METROLOGIC INSTR INC
An over-the-conveyor bar code symbol reading system for scanning bar coded packages transported through a 3-D scanning volume having a plurality of focal planes. The system comprises a conveyor belt, first and second laser scanning subsystems mounted...
US6085978 (A), filed
Mon May 12 00:00:00 CDT 1997
, published
Tue Jul 11 00:00:00 CDT 2000
- METROLOGIC INSTR INC
A holographic laser scanners of ultra-compact and modular design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visible laser diodes, and also a method of designing and...
US6134003 (A), filed
Tue Feb 27 00:00:00 CST 1996
, published
Tue Oct 17 00:00:00 CDT 2000
- MASSACHUSETTS INST TECHNOLOGY
An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The...
US4905032 (A), filed
Fri Nov 04 00:00:00 CST 1988
, published
Tue Feb 27 00:00:00 CST 1990
- MINOLTA CAMERA KK
An automatic focusing condition detecting device comprising an objective lens; a light receiving unit having a plurality of receiving portions, each receiving portion being adapted to receive through the objective lens light from one of a plurality of focusing...
US6687431 (B2), filed
Wed Nov 07 00:00:00 CST 2001
, published
Tue Feb 03 00:00:00 CST 2004
- CAPELLA PHOTONICS INC
This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding...
US6057896 (A), filed
Wed Nov 26 00:00:00 CST 1997
, published
Tue May 02 00:00:00 CDT 2000
- SAMSUNG ELECTRONICS CO LTD
A passivation layer is formed by coating a flowable insulating material on the substrate where a thin film transistor and a storage capacitor electrode, and a pixel electrode is formed on the passivation layer. A portion of the passivation layer is etched...
US6457642 (B1), filed
Wed Mar 24 00:00:00 CST 1999
, published
Tue Oct 01 00:00:00 CDT 2002
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US6457646 (B1), filed
Fri Sep 17 00:00:00 CDT 1999
, published
Tue Oct 01 00:00:00 CDT 2002
- METROLOGIC INSTR INC
The first scanner generates an omnidirectional laser scanning pattern within a large 3-D scanning volume in order to detect the location of a code symbol therewithin and produce data indicative of its location therewithin. Using this location data, the second...
US6360947 (B1), filed
Tue Mar 24 00:00:00 CST 1998
, published
Tue Mar 26 00:00:00 CST 2002
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional laser scanning system are used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US6969635 (B2), filed
Mon Dec 03 00:00:00 CST 2001
, published
Tue Nov 29 00:00:00 CST 2005
- REFLECTIVITY INC
A method for forming a MEMS device is disclosed, where a final release step is performed just prior to a wafer bonding step to protect the MEMS device from contamination, physical contact, or other deleterious external events. Without additional changes to the...
US4387297 (A), filed
Fri Feb 29 00:00:00 CST 1980
, published
Tue Jun 07 00:00:00 CDT 1983
- SYMBOL TECHNOLOGIES INC
An entirely field-portable laser scanning system for reading bar code symbols includes a light-weight and small-sized laser scanning head. The laser source, power supply component, optics, scanning elements, sensor circuit, and signal processing circuitry are...
US4387297 (B1), filed
Fri Feb 29 00:00:00 CST 1980
, published
Tue Sep 12 00:00:00 CDT 1995
- SYMBOL TECHNOLOGIES INC
US7042643 (B2), filed
Tue Feb 19 00:00:00 CST 2002
, published
Tue May 09 00:00:00 CDT 2006
- IDC LLC
An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical...
US6629640 (B2), filed
Mon May 07 00:00:00 CDT 2001
, published
Tue Oct 07 00:00:00 CDT 2003
- METROLOGIC INSTR INC
A method of and system for automatically identifying packages during manual package sortation operations, wherein, a laser scanning system is supported above a workspace environment of 3-D spatial extent, which can be occupied by a human operator involved in...
US5998925 (A), filed
Tue Jul 29 00:00:00 CDT 1997
, published
Tue Dec 07 00:00:00 CST 1999
- NICHIA KAGAKU KOGYO KABUSHIKI
The white light emitting diode comprising a light emitting component using a semiconductor as a light emitting layer and a phosphor which absorbs a part of light emitted by the light emitting component and emits light of wavelength different from that of the...
US4986622 (A), filed
Thu Jun 08 00:00:00 CDT 1989
, published
Tue Jan 22 00:00:00 CST 1991
- MARTINEZ MIGUEL
It is a problem in the field of light transmission systems to use unbreakable heat sensitive light guides such as plastic optical fibers, with a high thermal output light source. The heat sensitive light guide is damaged by the thermal output of the light...
US5319528 (A), filed
Fri Jan 31 00:00:00 CST 1992
, published
Tue Jun 07 00:00:00 CDT 1994
- DIOMED LTD
PCT No. PCT/GB91/01310 Sec. 371 Date Jan. 31, 1992 Sec. 102(e) Date Jan. 31, 1992 PCT Filed Aug. 1, 1991 PCT Pub. No. WO92/02844 PCT Pub. Date Feb. 20, 1992.An optical system for producing a high power light source comprises a number of laser diodes, or...
US6948659 (B2), filed
Fri Mar 22 00:00:00 CST 2002
, published
Tue Sep 27 00:00:00 CDT 2005
- METROLOGIC INSTR INC
A hand-supportable linear-type planar laser illumination and imaging (PLIIM) based device comprising a linear image formation and detection (IFD) module having a linear array of image detection elements and also image formation optics having a field of view...
US6445840 (B1), filed
Thu Jan 13 00:00:00 CST 2000
, published
Tue Sep 03 00:00:00 CDT 2002
- OMM INC
Various 3-port and 4-port micromachined optomechanical matrix switches are disclosed herein. In accordance with one aspect of the invention there is provided an optomechanical matrix switch including a substrate and a first plurality of optomechanical...
US6840449 (B2), filed
Wed Nov 20 00:00:00 CST 2002
, published
Tue Jan 11 00:00:00 CST 2005
- METROLOGIC INSTR INC
A holographic laser scanner of ultra-compact design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visable laser diodes. The holographic optical elements are arranged on the...
US4359598 (A), filed
Mon Dec 29 00:00:00 CST 1980
, published
Tue Nov 16 00:00:00 CST 1982
- BRITISH INSULATED CALLENDERS
A flexible stranded body, such as an electric conductor of an overhead electric transmission or distribution system, comprises at least one stranded layer of elongate elements of metal or metal alloy, at least one elongate compartment within and extending...
US5214462 (A), filed
Wed Feb 14 00:00:00 CST 1990
, published
Tue May 25 00:00:00 CDT 1993
- ASAHI OPTICAL CO LTD
US6382515 (B1), filed
Mon Mar 22 00:00:00 CST 1999
, published
Tue May 07 00:00:00 CDT 2002
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US5255262 (A), filed
Tue Jun 04 00:00:00 CDT 1991
, published
Tue Oct 19 00:00:00 CDT 1993
- IBM
US7338159 (B2), filed
Tue Mar 21 00:00:00 CST 2006
, published
Tue Mar 04 00:00:00 CST 2008
- SPIVEY BRETT
A lens unit with two lens elements each having special surfaces such that an adjustment of the position of one of the two lens elements relative to the other in a direction generally perpendicular to a viewing direction changes the focusing power of the lens...
US6530522 (B1), filed
Wed Feb 16 00:00:00 CST 2000
, published
Tue Mar 11 00:00:00 CST 2003
- METROLOGIC INSTR INC
A holographic laser scanner of ultra-compact design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visible laser diodes. The holographic optical elements are arranged on the...
US6705528 (B2), filed
Tue Feb 19 00:00:00 CST 2002
, published
Tue Mar 16 00:00:00 CST 2004
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US7104454 (B2), filed
Thu May 15 00:00:00 CDT 2003
, published
Tue Sep 12 00:00:00 CDT 2006
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US6403985 (B1), filed
Fri Dec 23 00:00:00 CST 1994
, published
Tue Jun 11 00:00:00 CDT 2002
- KOPIN CORP
Light emitting diodes (LEDs) and LED bars and LED arrays formed of semiconductive material, such as III-V, and particularly AlGaAs/CaAs material, are formed in very thin structures using organometallic vapor deposition (OMCVD). Semiconductor p-n junctions are...
US5648832 (A), filed
Tue Dec 05 00:00:00 CST 1995
, published
Tue Jul 15 00:00:00 CDT 1997
- OAKLEY INC
Disclosed is an optically corrected lens for nonprescription, dual lens eyeglasses. In a preferred embodiment, the anterior surface of the lens lies on a portion of a first sphere having a first center. The posterior surface of the lens lies on the surface of...
US4913142 (A), filed
Tue May 26 00:00:00 CDT 1987
, published
Tue Apr 03 00:00:00 CDT 1990
- MASSACHUSETTS INST TECHNOLOGY
A laser catheter is disclosed wherein optical fibers carrying laser light are mounted in a catheter for insertion into an artery to provide controlled delivery of a laser beam for percutaneous intravascular laser treatment of atherosclerotic disease. A...
US6338807 (B1), filed
Fri Jan 24 00:00:00 CST 1997
, published
Tue Jan 15 00:00:00 CST 2002
- REVEO INC
In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient...
US4687917 (A), filed
Tue Oct 16 00:00:00 CDT 1984
, published
Tue Aug 18 00:00:00 CDT 1987
- NIPPON KOGAKU KK
A focus detecting device for detecting the focus adjusted state of an imaging optical system with respect to an object body comprises first and second photoelectric element arrays each including a plurality of photoelectric elements arranged in one direction,...
US5144493 (A), filed
Fri Jun 02 00:00:00 CDT 1989
, published
Tue Sep 01 00:00:00 CDT 1992
- ASAHI OPTICAL CO LTD
US6947200 (B2), filed
Fri Sep 24 00:00:00 CDT 2004
, published
Tue Sep 20 00:00:00 CDT 2005
- REFLECTIVITY INC
A spatial light modulator includes an upper optically transmissive substrate held above a lower substrate containing addressing circuitry. One or more electrostatically deflectable elements are suspended by hinges from the upper substrate. In operation,...
US6951894 (B1), filed
Thu Aug 17 00:00:00 CDT 2000
, published
Tue Oct 04 00:00:00 CDT 2005
- CIBA VISION CORP
An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeabilit...
US6629641 (B2), filed
Fri Feb 09 00:00:00 CST 2001
, published
Tue Oct 07 00:00:00 CDT 2003
- METROLOGIC INSTR INC
Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such...
US6742707 (B1), filed
Mon Feb 12 00:00:00 CST 2001
, published
Tue Jun 01 00:00:00 CDT 2004
- METROLOGIC INSTR INC
A planar laser illumination and imaging (PLIIM) based camera system capable of producing digital images with reduced levels of speckle-pattern noise. The PLIIM based camera system comprises a planar laser illumination array (PLIA) including a plurality of...
US6114018 (A), filed
Mon Oct 27 00:00:00 CST 1997
, published
Tue Sep 05 00:00:00 CDT 2000
- FLEX PRODUCTS INC
An optically variable article comprising of a substrate and at least one non-overlapping pair of optically variable structures on the surface of the substrate, the optically variable structures having the same color at one angle of incidence and different...
US4493528 (A), filed
Fri Apr 11 00:00:00 CST 1980
, published
Tue Jan 15 00:00:00 CST 1985
- UNIV LELAND STANFORD JUNIOR
Apparatus and method of manufacture for coupling optical power between two strands of fiber optic material in a given direction of propagation. The coupler employs generally parallel, intersecting strands of fiber optic material having the cladding removed on...
US6328215 (B1), filed
Thu Jan 06 00:00:00 CST 2000
, published
Tue Dec 11 00:00:00 CST 2001
- METROLOGIC INSTR INC
A method of and system for automatically identifying packages during manual package sortation operations, wherein, a laser scanning system is supported above a workspace environment of 3-D spatial extent, which is occupied by a human operator involved in the...
US7017813 (B2), filed
Wed Feb 06 00:00:00 CST 2002
, published
Tue Mar 28 00:00:00 CST 2006
- METROLOGIC INSTR INC
Method and apparatus for automatically reading bar code symbols using a reading device containing a laser beam configured to provide a scan field. The method involves automatically detecting the presence of a bar code within the scan field by flickering the...
US7051922 (B2), filed
Wed Apr 18 00:00:00 CDT 2001
, published
Tue May 30 00:00:00 CDT 2006
- METROLOGIC INSTR INC
A bioptical holographic laser scanning system employing a plurality of laser scanning stations about a holographic scanning disc having scanning facets with high and low elevation angle characteristics, as well as positive, negative and zero skew angle...
US5546281 (A), filed
Fri Jan 13 00:00:00 CST 1995
, published
Tue Aug 13 00:00:00 CDT 1996
- METHODE ELECTRONICS INC
A robust optoelectronic transceiver module which is quick, easy, and inexpensive to manufacture. The transceiver module has a main housing which consists of a potting box with potting material inserted therein. In addition, a circuit board is encased by the...
US4850685 (A), filed
Thu Aug 18 00:00:00 CDT 1988
, published
Tue Jul 25 00:00:00 CDT 1989
- SEIKO EPSON CORP
A projection-type color display device. The display device includes a light source which provides light and a color separation member which receives the light and which separates the received light into the different colors of red, blue and green light. A...
US7383069 (B2), filed
Tue May 18 00:00:00 CDT 2004
, published
Tue Jun 03 00:00:00 CDT 2008
- SENSYS MEDICAL INC
A method and apparatus for easing the use of an optically based noninvasive analyzer is presented. More particularly, a simplified algorithm is used that removes the daily requirement of collecting and using a noninvasive spectrum to update a calibration...
US6862143 (B2), filed
Fri Jan 31 00:00:00 CST 2003
, published
Tue Mar 01 00:00:00 CST 2005
- CANON KK
A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens...
US6422467 (B2), filed
Tue Feb 02 00:00:00 CST 1999
, published
Tue Jul 23 00:00:00 CDT 2002
- METROLOGIC INSTR INC
The effects of papers/substrate noise are significantly reduced in multi-focal zone laser scanning systems by processing analog scan data signals with a scan data signal processor having a plurality of pass-band filters and amplifiers that are automatically...
US6199759 (B1), filed
Tue Sep 30 00:00:00 CDT 1997
, published
Tue Mar 13 00:00:00 CST 2001
- METROLOGIC INSTR INC
A bar code symbol scanning system having a holographic laser scanning disc utilizing maximum light collection surface area thereof and having scanning facets with optimized light collection efficiency. The holographic scanning disc has a plurality of...
US5760100 (A), filed
Fri Dec 08 00:00:00 CST 1995
, published
Tue Jun 02 00:00:00 CDT 1998
- COMMW SCIENT IND RES ORG
An ophthalmic lens suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water...
US5760100 (B1), filed
Fri Dec 08 00:00:00 CST 1995
, published
Tue Nov 14 00:00:00 CST 2000
- COMMW SCIENT IND RES ORG
US4419675 (A), filed
Thu May 24 00:00:00 CDT 1979
, published
Tue Dec 06 00:00:00 CST 1983
- HOECHST CO AMERICAN
Imaging system and method suitable for producing artwork masters for use in the manufacture of printed circuit boards. A beam of coherent radiation is modulated in accordance with data from a source defining the image to be produced, and the modulated beam is...
US5381401 (A), filed
Fri Jun 18 00:00:00 CDT 1993
, published
Tue Jan 10 00:00:00 CST 1995
- IBM
An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a light...
US5525792 (A), filed
Mon Sep 26 00:00:00 CDT 1994
, published
Tue Jun 11 00:00:00 CDT 1996
- NIPPON KOGAKU KK
Disclosed is a focus detecting device for use in a camera comprising a phototaking optical system for forming an image of the object on a reference plane. A focus detecting optical system separates light passing through the phototaking system from at least a...
US6967145 (B2), filed
Fri Nov 28 00:00:00 CST 2003
, published
Tue Nov 22 00:00:00 CST 2005
- ASIA PACIFIC MICROSYSTEMS INC
A method of maintaining photolithographic precision alignment for a wafer after being bonded, wherein two cavities are formed at the rear surface of a top wafer at the position corresponding to alignment marks made on a bottom wafer. The depth of both cavities...
US5613751 (A), filed
Tue Jun 27 00:00:00 CDT 1995
, published
Tue Mar 25 00:00:00 CST 1997
- LUMITEX INC
Light emitting panel assemblies include light emitting panel members and one or more light sources positioned/embedded in a light transition area, which increases the efficiency of light entering the panel members along the light input area to be emitted from...
US4333165 (A), filed
Thu Dec 01 00:00:00 CST 1977
, published
Tue Jun 01 00:00:00 CDT 1982
- FORMIGRAPHIC ENGINE CORP
Method and active media for controlled production of physical and refractive index inhomogeneities in a volume of a suspension medium by use of at least two intersecting beams of electromagnetic radiation matched to the excited state properties of molecules in...
US5300788 (A), filed
Fri Jan 18 00:00:00 CST 1991
, published
Tue Apr 05 00:00:00 CDT 1994
- KOPIN CORP
Light emitting diodes (LEDs) and LED bars and LED arrays formed of semiconductive material, such as III-V, and particularly AlGaAs/GaAs material, are formed in very thin structures using organometallic vapor deposition (OMCVD). Semiconductor p-n junctions are...
US5808805 (A), filed
Thu Apr 27 00:00:00 CDT 1995
, published
Tue Sep 15 00:00:00 CDT 1998
- NIPPON KOGAKU KK
To use a beam splitting optical system smaller than the conventional beam splitters and to set a longer optical path between a concave, reflective mirror and an image plane. A light beam from an object surface travels through a first converging group to enter...
US4217027 (A), filed
Mon Aug 29 00:00:00 CDT 1977
, published
Tue Aug 12 00:00:00 CDT 1980
- BELL TELEPHONE LABOR INC
A preform for fabrication of a glass fiber optical transmission line is prepared by chemical reaction of vapor ingredients within a glass tube. Reaction, which may be between chlorides or hydrides of, for example, silicon and germanium with oxygen, occurs...
US4217027 (B1), filed
Mon Aug 29 00:00:00 CDT 1977
, published
Tue Jul 15 00:00:00 CDT 1986
US7409327 (B2), filed
Fri Feb 15 00:00:00 CST 2002
, published
Tue Aug 05 00:00:00 CDT 2008
- SIOPTICAL INC
A method for forming a hybrid active electronic and optical circuit using a lithography mask. The hybrid active electronic and optical circuit comprising an active electronic device and at least one optical device on a Silicon-On-Insulator (SOI) wafer. The SOI...
US6354505 (B1), filed
Tue Feb 02 00:00:00 CST 1999
, published
Tue Mar 12 00:00:00 CST 2002
- METROLOGIC INSTR INC
The effects of paper/substrate noise are significantly reduced in multi-focal zone laser scanning systems by processing analog scan data signals with a scan data signal processor having a plurality of pass-band filters and amplifiers that are automatically...
US6422466 (B1), filed
Fri Jan 07 00:00:00 CST 2000
, published
Tue Jul 23 00:00:00 CDT 2002
- METROLOGIC INSTR INC
A method of and system for automatically identifying packages during package transport operations carried out by a human operator walking through the doorway of a storage container parked up to a loading dock, wherein a laser scanning system is supported above...
US4766302 (A), filed
Fri May 17 00:00:00 CDT 1985
, published
Tue Aug 23 00:00:00 CDT 1988
- MINOLTA CAMERA KK
In a focus detection system for detecting focus condition of an objective lens, there is disposed a pair of photo sensor arrays each having a plurality of photo cells lined up in one direction to receive a first image and second image passed through respective...
US6299067 (B1), filed
Thu Jul 27 00:00:00 CDT 2000
, published
Tue Oct 09 00:00:00 CDT 2001
- METROLOGIC INSTR INC
A fully automatic bar code symbol reading system having an automatic (i.e., triggerless) portable bar code symbol reading device with an omnidirectional projection laser scanning engine mounted within the head portion of its hand-supportable housing, and an...
US7123413 (B2), filed
Tue Jul 17 00:00:00 CDT 2001
, published
Tue Oct 17 00:00:00 CDT 2006
- METROLOGIC INSTR INC
Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser diodes, over an extended...
US5218395 (A), filed
Fri Sep 21 00:00:00 CDT 1990
, published
Tue Jun 08 00:00:00 CDT 1993
- MINOLTA CAMERA KK
A camera with a multi-zone focus detecting device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a focusing condition is detected based on the image formed by the objective...
US4265510 (A), filed
Wed May 16 00:00:00 CDT 1979
, published
Tue May 05 00:00:00 CDT 1981
- HUGHES AIRCRAFT CO
Primary mirror 12, secondary mirror 14 and tertiary mirror 16 form an anastigmatic relayed image forming optical system which is off-axis and decentered in both aperture and field angle. The secondary and tertiary mirrors are tilted and decenter relative to...
US7152796 (B2), filed
Mon Jan 10 00:00:00 CST 2005
, published
Tue Dec 26 00:00:00 CST 2006
- METROLOGIC INSTR INC
A holographic laser scanner of ultra-compact design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visible laser diodes. The holographic optical elements are arranged on the...
US6651890 (B2), filed
Fri Jul 06 00:00:00 CDT 2001
, published
Tue Nov 25 00:00:00 CST 2003
A bar code scanner for either fixed or hand-held disposition at a counter. The scanner includes a compact housing including a spherical head with a window and a downwardly protruding stem, and a sliding carriage attached to the base of the stem. The stem and...
US6523750 (B1), filed
Mon Nov 15 00:00:00 CST 1999
, published
Tue Feb 25 00:00:00 CST 2003
- METROLOGIC INSTR INC
A holographic laser scanning system for scanning bar code symbols. The system comprises a holographic scanning disc having a plurality of holographic optical elements disposed thereon for scanning the plurality of laser beams directed at the same incident...
US7156310 (B2), filed
Mon Dec 08 00:00:00 CST 2003
, published
Tue Jan 02 00:00:00 CST 2007
- METROLOGIC INSTR INC
An automatically-activated bar code symbol reading system for carrying out bar code symbol reading operations, comprising a hand-supportable housing; a manually-actuatable data transmission activation switch integrated with the hand-supportable housing; and an...
US5278699 (A), filed
Thu Jul 02 00:00:00 CDT 1992
, published
Tue Jan 11 00:00:00 CST 1994
- ASAHI OPTICAL CO LTD
A zoom lens system for a compact camera, having a zoom ratio of approximately 2 or 3 and a smaller overall lens length at the telephoto end than the focal distance at the telephoto end, and which optically experiences only a small focus shift due to environmen...
US4576850 (A), filed
Thu Jul 20 00:00:00 CDT 1978
, published
Tue Mar 18 00:00:00 CST 1986
- MINNESOTA MINING MFG
An article comprising a shaped, plastic layer or body comprising crosslinked polymer with hard and soft segments or moieties and having a microstructure-bearing surface is prepared by a process comprising filling a mold master, bearing or encoded with the...
US5334681 (A), filed
Fri Dec 17 00:00:00 CST 1993
, published
Tue Aug 02 00:00:00 CDT 1994
- CIBA GEIGY CORP
Fluorine and/or silicone containing block copolymers are described which are the copolymerization product of mono; di- or trivinyl substituted poly(ethylene oxide) prepolymers (A) and fluoroalkyl-alkylene acrylates or methacrylates (B1), oligosiloxy-silyl...
US5717518 (A), filed
Mon Jul 22 00:00:00 CDT 1996
, published
Tue Feb 10 00:00:00 CST 1998
- KLA INSTR CORP
An ultraviolet (UV) catadioptric imaging system, with broad spectrum correction of primary and residual, longitudinal and lateral, chromatic aberrations for wavelengths extending into the deep UV (as short as about 0.16 mu m), comprises a focusing lens group...
US4950879 (A), filed
Tue Dec 19 00:00:00 CST 1989
, published
Tue Aug 21 00:00:00 CDT 1990
- MINOLTA CAMERA KK
US6549699 (B2), filed
Tue Jan 29 00:00:00 CST 2002
, published
Tue Apr 15 00:00:00 CDT 2003
- CAPELLA PHOTONICS INC
This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding...
US5835255 (A), filed
Thu May 05 00:00:00 CDT 1994
, published
Tue Nov 10 00:00:00 CST 1998
- ETALON INC
Light in the visible spectrum is modulated using an array of modulation elements, and control circuitry connected to the array for controlling each of the modulation elements independently, each of the modulation elements having a surface which is caused to...
US7000839 (B2), filed
Tue Sep 02 00:00:00 CDT 2003
, published
Tue Feb 21 00:00:00 CST 2006
- METROLOGIC INSTR INC
A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the...
US6021237 (A), filed
Thu Feb 12 00:00:00 CST 1998
, published
Tue Feb 01 00:00:00 CST 2000
- KOREA INST SCIENCE TECHNOLOGY
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical...
US5978125 (A), filed
Thu Nov 30 00:00:00 CST 1995
, published
Tue Nov 02 00:00:00 CST 1999
Optical variable delay devices for providing variable true time delay to multiple optical beams simultaneously. A ladder-structured variable delay device comprises multiple basic building blocks stacked on top of each other resembling a ladder. Each basic...
US6176430 (B1), filed
Fri Apr 24 00:00:00 CDT 1998
, published
Tue Jan 23 00:00:00 CST 2001
- LENSCARD U S LLC
A wallet card adapted for use in reading externally stored information includes a transparent, substantially non-foldable semi-rigid base. The semi-rigid base includes a magnifying lens. The lens is formed by heating a lens forming die to a temperature...
