| CH638632A5
              (de)
            
            * | 1979-01-31 | 1983-09-30 | Landis & Gyr Ag | Verfahren und einrichtung zur kennzeichnung und zur nachtraeglichen erkennung von dokumenten. | 
        
          | EP0057271B1
              (de)
            
            * | 1981-02-03 | 1984-10-10 | LGZ LANDIS & GYR ZUG AG | Verfahren zur Verhinderung erfolgreicher Fälschungen von Dokumenten und Anordnung zur Durchführung des Verfahrens | 
        
          | US4433437A
              (en)
            
            * | 1981-05-12 | 1984-02-21 | Polaroid Corporation | Method and apparatus for verifying security labels | 
        
          | CH653160A5
              (de)
            
            * | 1981-09-10 | 1985-12-13 | Landis & Gyr Ag | Wertdokument mit maschinenlesbaren optischen echtheitsmarkierungen. | 
        
          | CH653782A5
              (de)
            
            * | 1981-10-15 | 1986-01-15 | Landis & Gyr Ag | Kinoform. | 
        
          | CH653161A5
              (de)
            
            * | 1981-10-27 | 1985-12-13 | Landis & Gyr Ag | Dokument mit einem sicherheitsmerkmal und verfahren zur echtheitspruefung des dokumentes. | 
        
          | US4641017A
              (en)
            
            * | 1983-12-15 | 1987-02-03 | Herman Lopata | Fraud resistant credit card system | 
        
          | US6454167B1
              (en)
            
            * | 1985-02-28 | 2002-09-24 | Symbol Technologies, Inc. | Laser focusing aperture and method | 
        
          | CN85100700A
              (zh)
            
            * | 1985-04-01 | 1987-01-31 | 陆伯祥 | 计算机莫尔条纹证件及其识别系统 | 
        
          | CH669275A5
              (de)
            
            * | 1985-08-21 | 1989-02-28 | Landis & Gyr Ag | Verfahren und einrichtung zum auswerten und loeschen von wertmarkierungen auf wertdokumenten. | 
        
          | US4788116A
              (en)
            
            * | 1986-03-31 | 1988-11-29 | Xerox Corporation | Full color images using multiple diffraction gratings and masking techniques | 
        
          | US4737448A
              (en)
            
            * | 1986-03-31 | 1988-04-12 | Xerox Corporation | Color images formed by multiple diffraction gratings | 
        
          | JPS6345812U
              (en0)
            
            * | 1986-09-06 | 1988-03-28 |  |  | 
        
          | US4968064A
              (en)
            
            * | 1987-01-13 | 1990-11-06 | Mancuso Robert J | Variable color print | 
        
          | US4932685A
              (en)
            
            * | 1987-01-13 | 1990-06-12 | Mancuso Robert J | Variable color print and method of making same | 
        
          | US4924078A
              (en)
            
            * | 1987-11-25 | 1990-05-08 | Sant Anselmo Carl | Identification symbol, system and method | 
        
          | US4849624A
              (en)
            
            * | 1988-06-24 | 1989-07-18 | The Boeing Company | Optical wavelength division multiplexing of digital encoder tracks | 
        
          | ATE98795T1
              (de)
            
            * | 1988-09-30 | 1994-01-15 | Landis & Gyr Business Support | Beugungselement. | 
        
          | ATE125967T1
              (de)
            
            * | 1988-09-30 | 1995-08-15 | Landis & Gry Tech Innovat Ag | Strichkodefeld und strichkodeleser. | 
        
          | US5098661A
              (en)
            
            * | 1988-11-16 | 1992-03-24 | Medical Laboratory Automation, Inc. | Coded cuvette for use in testing apparatus | 
        
          | JPH02166577A
              (ja)
            
            * | 1988-12-21 | 1990-06-27 | Hitachi Ltd | 自動取引処理装置 | 
        
          | US5046841A
              (en)
            
            * | 1989-01-19 | 1991-09-10 | Idx, Inc. | Token having a predetermined optical characteristic, and a token validation device for use therewith | 
        
          | US5200794A
              (en)
            
            * | 1989-08-11 | 1993-04-06 | Nhk Spring Co., Ltd. | Optical head for an optical authenticity identifing system | 
        
          | US5291006A
              (en)
            
            * | 1989-08-11 | 1994-03-01 | Nhk Spring Co., Ltd. | Authenticity identifying system for information storage cards | 
        
          | US5442433A
              (en)
            
            * | 1989-08-11 | 1995-08-15 | Nhk Spring Co., Ltd. | Identification system for an article having individually attached patches | 
        
          | DE3932505C2
              (de)
            
            * | 1989-09-28 | 2001-03-15 | Gao Ges Automation Org | Datenträger mit einem optisch variablen Element | 
        
          | JPH041886A
              (ja)
            
            * | 1990-04-19 | 1992-01-07 | Csk Corp | 磁気カードのパンチ孔検出システム | 
        
          | US5149948A
              (en)
            
            * | 1990-07-16 | 1992-09-22 | Computer Identics | Improved bar code reader system for reading bar codes under high specular reflection conditions with a variety of surface effects | 
        
          | US5128528A
              (en)
            
            * | 1990-10-15 | 1992-07-07 | Dittler Brothers, Inc. | Matrix encoding devices and methods | 
        
          | US5224712A
              (en)
            
            * | 1991-03-01 | 1993-07-06 | No Peek 21 | Card mark sensor and methods for blackjack | 
        
          | US5219172A
              (en)
            
            * | 1991-03-01 | 1993-06-15 | No Peek 21 | Playing card marks and card mark sensor for blackjack | 
        
          | US5110134A
              (en)
            
            * | 1991-03-01 | 1992-05-05 | No Peek 21 | Card mark sensor and methods for blackjack | 
        
          | DE4131964A1
              (de)
            
            * | 1991-09-25 | 1993-04-08 | Holtronic Gmbh | Verfahren zur beschriftung oder kennzeichnung von hologrammen | 
        
          | AU3232793A
              (en)
            
            * | 1991-12-19 | 1993-07-19 | Control Module Inc. | Secure optomagnetic identification | 
        
          | JPH07111726B2
              (ja)
            
            * | 1991-12-26 | 1995-11-29 | 日本発条株式会社 | 対象物の識別構造及び識別体 | 
        
          | DE4200746A1
              (de)
            
            * | 1992-01-14 | 1993-07-15 | Inform Vertriebsgesellschaft F | Maschinenlesbarer ausweis und lesegeraet hierfuer | 
        
          | US5432329A
              (en)
            
            * | 1992-02-07 | 1995-07-11 | American Bank Note Holographics | Automated holographic optical recognition and decoding system for verification | 
        
          | US6219015B1
              (en)
            
            * | 1992-04-28 | 2001-04-17 | The Board Of Directors Of The Leland Stanford, Junior University | Method and apparatus for using an array of grating light valves to produce multicolor optical images | 
        
          | JP2520346B2
              (ja)
            
            * | 1992-04-28 | 1996-07-31 | 日本発条株式会社 | 対象物の識別構造 | 
        
          | JPH07210071A
              (ja)
            
            * | 1994-01-25 | 1995-08-11 | Nhk Spring Co Ltd | 対象物の識別システム | 
        
          | US5593017A
              (en)
            
            * | 1994-03-18 | 1997-01-14 | Environmental Products Corporation | Method and apparatus for identifying information contained in surface deviations | 
        
          | US6280891B2
              (en) | 1994-05-04 | 2001-08-28 | Hologram Industries S.A. | Multi-layer assembly and method for marking articles and resulting marked articles | 
        
          | FR2719687B1
              (fr)
            
            * | 1994-05-04 | 1996-09-06 | Hologram Ind Sarl | Procédé de marquage de produits ou de documents, produit ainsi marqué et moyens pour la mise en Óoeuvre du procédé et un dispositif de vérification d'un tel produit ou document. | 
        
          | US5754520A
              (en)
            
            * | 1994-12-22 | 1998-05-19 | Landis & Gyr Technology Innovation Ag | Optical data carriers and reading devices therefor | 
        
          | US5661592A
              (en)
            
            * | 1995-06-07 | 1997-08-26 | Silicon Light Machines | Method of making and an apparatus for a flat diffraction grating light valve | 
        
          | US5841579A
              (en)
            
            * | 1995-06-07 | 1998-11-24 | Silicon Light Machines | Flat diffraction grating light valve | 
        
          | US5629801A
              (en)
            
            * | 1995-06-07 | 1997-05-13 | Silicon Light Machines | Diffraction grating light doubling collection system | 
        
          | US5798743A
              (en)
            
            * | 1995-06-07 | 1998-08-25 | Silicon Light Machines | Clear-behind matrix addressing for display systems | 
        
          | RU2115168C1
              (ru)
            
            * | 1995-11-03 | 1998-07-10 | Швейцарская корпорация "Пинпоинт С.А." | Способ идентификации объекта и идентификационная метка | 
        
          | US6064404A
              (en)
            
            * | 1996-11-05 | 2000-05-16 | Silicon Light Machines | Bandwidth and frame buffer size reduction in a digital pulse-width-modulated display system | 
        
          | US7513417B2
              (en) | 1996-11-15 | 2009-04-07 | Diebold, Incorporated | Automated banking machine | 
        
          | US6573983B1
              (en) | 1996-11-15 | 2003-06-03 | Diebold, Incorporated | Apparatus and method for processing bank notes and other documents in an automated banking machine | 
        
          | US7584883B2
              (en) | 1996-11-15 | 2009-09-08 | Diebold, Incorporated | Check cashing automated banking machine | 
        
          | US5923413A
              (en)
            
            * | 1996-11-15 | 1999-07-13 | Interbold | Universal bank note denominator and validator | 
        
          | US7559460B2
              (en) | 1996-11-15 | 2009-07-14 | Diebold Incorporated | Automated banking machine | 
        
          | DE19706315A1
              (de) | 1997-02-18 | 1998-08-20 | Zahoransky Anton Gmbh & Co | Bürstenherstellungsmaschine | 
        
          | US5982553A
              (en)
            
            * | 1997-03-20 | 1999-11-09 | Silicon Light Machines | Display device incorporating one-dimensional grating light-valve array | 
        
          | DE19702475A1
              (de)
            
            * | 1997-04-22 | 1998-10-29 | Heinrich Grafenhorst | Einrichtung zum Identifizieren von Informationsträgern | 
        
          | US7129709B2
              (en)
            
            * | 1997-04-25 | 2006-10-31 | Whd Electronische Prueftechnik | Method of testing documents provided with optico-diffractively effective markings | 
        
          | US5825475A
              (en)
            
            * | 1997-07-29 | 1998-10-20 | Van Leer Metallized Products (Usa) Limited | System and method for determining which of a plurality of visually indistinguishable objects have been marked with a covert indicator | 
        
          | US6088102A
              (en)
            
            * | 1997-10-31 | 2000-07-11 | Silicon Light Machines | Display apparatus including grating light-valve array and interferometric optical system | 
        
          | US6271808B1
              (en) | 1998-06-05 | 2001-08-07 | Silicon Light Machines | Stereo head mounted display using a single display device | 
        
          | US6101036A
              (en)
            
            * | 1998-06-23 | 2000-08-08 | Silicon Light Machines | Embossed diffraction grating alone and in combination with changeable image display | 
        
          | US6130770A
              (en)
            
            * | 1998-06-23 | 2000-10-10 | Silicon Light Machines | Electron gun activated grating light valve | 
        
          | US6215579B1
              (en) | 1998-06-24 | 2001-04-10 | Silicon Light Machines | Method and apparatus for modulating an incident light beam for forming a two-dimensional image | 
        
          | US6303986B1
              (en)
            
            * | 1998-07-29 | 2001-10-16 | Silicon Light Machines | Method of and apparatus for sealing an hermetic lid to a semiconductor die | 
        
          | US6872984B1
              (en) | 1998-07-29 | 2005-03-29 | Silicon Light Machines Corporation | Method of sealing a hermetic lid to a semiconductor die at an angle | 
        
          | JP3367434B2
              (ja)
            
            * | 1998-11-06 | 2003-01-14 | 日本ビクター株式会社 | 光記録媒体及び偽造品検出装置 | 
        
          | DE19924750C2
              (de)
            
            * | 1999-04-08 | 2002-11-14 | Ovd Kinegram Ag Zug | Leseanordnung für Informationsstreifen mit optisch kodierter Information | 
        
          | WO2000073991A1
              (en) | 1999-06-01 | 2000-12-07 | De La Rue International Limited | Security device | 
        
          | US7266527B1
              (en) | 1999-06-30 | 2007-09-04 | Martin David A | Method and device for preventing check fraud | 
        
          | US20020184152A1
              (en)
            
            * | 1999-06-30 | 2002-12-05 | Martin David A. | Method and device for preventing check fraud | 
        
          | US6956878B1
              (en) | 2000-02-07 | 2005-10-18 | Silicon Light Machines Corporation | Method and apparatus for reducing laser speckle using polarization averaging | 
        
          | US6387723B1
              (en)
            
            * | 2001-01-19 | 2002-05-14 | Silicon Light Machines | Reduced surface charging in silicon-based devices | 
        
          | US7177081B2
              (en)
            
            * | 2001-03-08 | 2007-02-13 | Silicon Light Machines Corporation | High contrast grating light valve type device | 
        
          | US20030208753A1
              (en)
            
            * | 2001-04-10 | 2003-11-06 | Silicon Light Machines | Method, system, and display apparatus for encrypted cinema | 
        
          | US6707591B2
              (en)
            
            * | 2001-04-10 | 2004-03-16 | Silicon Light Machines | Angled illumination for a single order light modulator based projection system | 
        
          | US6865346B1
              (en) | 2001-06-05 | 2005-03-08 | Silicon Light Machines Corporation | Fiber optic transceiver | 
        
          | US6747781B2
              (en)
            
            * | 2001-06-25 | 2004-06-08 | Silicon Light Machines, Inc. | Method, apparatus, and diffuser for reducing laser speckle | 
        
          | US6782205B2
              (en)
            
            * | 2001-06-25 | 2004-08-24 | Silicon Light Machines | Method and apparatus for dynamic equalization in wavelength division multiplexing | 
        
          | US6646778B2
              (en)
            
            * | 2001-08-01 | 2003-11-11 | Silicon Light Machines | Grating light valve with encapsulated dampening gas | 
        
          | US6639722B2
              (en)
            
            * | 2001-08-15 | 2003-10-28 | Silicon Light Machines | Stress tuned blazed grating light valve | 
        
          | US6829092B2
              (en) | 2001-08-15 | 2004-12-07 | Silicon Light Machines, Inc. | Blazed grating light valve | 
        
          | US6930364B2
              (en) | 2001-09-13 | 2005-08-16 | Silicon Light Machines Corporation | Microelectronic mechanical system and methods | 
        
          | US6956995B1
              (en) | 2001-11-09 | 2005-10-18 | Silicon Light Machines Corporation | Optical communication arrangement | 
        
          | US6692129B2
              (en)
            
            * | 2001-11-30 | 2004-02-17 | Silicon Light Machines | Display apparatus including RGB color combiner and 1D light valve relay including schlieren filter | 
        
          | US6800238B1
              (en) | 2002-01-15 | 2004-10-05 | Silicon Light Machines, Inc. | Method for domain patterning in low coercive field ferroelectrics | 
        
          | US6728023B1
              (en) | 2002-05-28 | 2004-04-27 | Silicon Light Machines | Optical device arrays with optimized image resolution | 
        
          | US6767751B2
              (en) | 2002-05-28 | 2004-07-27 | Silicon Light Machines, Inc. | Integrated driver process flow | 
        
          | US6839479B2
              (en)
            
            * | 2002-05-29 | 2005-01-04 | Silicon Light Machines Corporation | Optical switch | 
        
          | US7054515B1
              (en) | 2002-05-30 | 2006-05-30 | Silicon Light Machines Corporation | Diffractive light modulator-based dynamic equalizer with integrated spectral monitor | 
        
          | US6822797B1
              (en) | 2002-05-31 | 2004-11-23 | Silicon Light Machines, Inc. | Light modulator structure for producing high-contrast operation using zero-order light | 
        
          | US6829258B1
              (en) | 2002-06-26 | 2004-12-07 | Silicon Light Machines, Inc. | Rapidly tunable external cavity laser | 
        
          | US6714337B1
              (en) | 2002-06-28 | 2004-03-30 | Silicon Light Machines | Method and device for modulating a light beam and having an improved gamma response | 
        
          | US6813059B2
              (en)
            
            * | 2002-06-28 | 2004-11-02 | Silicon Light Machines, Inc. | Reduced formation of asperities in contact micro-structures | 
        
          | US6908201B2
              (en)
            
            * | 2002-06-28 | 2005-06-21 | Silicon Light Machines Corporation | Micro-support structures | 
        
          | US7057795B2
              (en) | 2002-08-20 | 2006-06-06 | Silicon Light Machines Corporation | Micro-structures with individually addressable ribbon pairs | 
        
          | US6801354B1
              (en) | 2002-08-20 | 2004-10-05 | Silicon Light Machines, Inc. | 2-D diffraction grating for substantially eliminating polarization dependent losses | 
        
          | US6712480B1
              (en) | 2002-09-27 | 2004-03-30 | Silicon Light Machines | Controlled curvature of stressed micro-structures | 
        
          | US6928207B1
              (en) | 2002-12-12 | 2005-08-09 | Silicon Light Machines Corporation | Apparatus for selectively blocking WDM channels | 
        
          | US7057819B1
              (en) | 2002-12-17 | 2006-06-06 | Silicon Light Machines Corporation | High contrast tilting ribbon blazed grating | 
        
          | US6987600B1
              (en) | 2002-12-17 | 2006-01-17 | Silicon Light Machines Corporation | Arbitrary phase profile for better equalization in dynamic gain equalizer | 
        
          | US6934070B1
              (en) | 2002-12-18 | 2005-08-23 | Silicon Light Machines Corporation | Chirped optical MEM device | 
        
          | US6927891B1
              (en) | 2002-12-23 | 2005-08-09 | Silicon Light Machines Corporation | Tilt-able grating plane for improved crosstalk in 1×N blaze switches | 
        
          | US7068372B1
              (en) | 2003-01-28 | 2006-06-27 | Silicon Light Machines Corporation | MEMS interferometer-based reconfigurable optical add-and-drop multiplexor | 
        
          | US7286764B1
              (en) | 2003-02-03 | 2007-10-23 | Silicon Light Machines Corporation | Reconfigurable modulator-based optical add-and-drop multiplexer | 
        
          | US6947613B1
              (en) | 2003-02-11 | 2005-09-20 | Silicon Light Machines Corporation | Wavelength selective switch and equalizer | 
        
          | US6922272B1
              (en) | 2003-02-14 | 2005-07-26 | Silicon Light Machines Corporation | Method and apparatus for leveling thermal stress variations in multi-layer MEMS devices | 
        
          | US7027202B1
              (en) | 2003-02-28 | 2006-04-11 | Silicon Light Machines Corp | Silicon substrate as a light modulator sacrificial layer | 
        
          | US6806997B1
              (en) | 2003-02-28 | 2004-10-19 | Silicon Light Machines, Inc. | Patterned diffractive light modulator ribbon for PDL reduction | 
        
          | US6922273B1
              (en) | 2003-02-28 | 2005-07-26 | Silicon Light Machines Corporation | PDL mitigation structure for diffractive MEMS and gratings | 
        
          | US7391973B1
              (en) | 2003-02-28 | 2008-06-24 | Silicon Light Machines Corporation | Two-stage gain equalizer | 
        
          | US7042611B1
              (en) | 2003-03-03 | 2006-05-09 | Silicon Light Machines Corporation | Pre-deflected bias ribbons | 
        
          | CN1910627B
              (zh)
            
            * | 2004-01-09 | 2010-12-15 | 证券票据国际有限公司 | 用来检查安全物品的方法和设备 | 
        
          | RU2268495C1
              (ru)
            
            * | 2004-06-16 | 2006-01-20 | Сергей Васильевич Андреев | Устройство для идентификации объекта | 
        
          | WO2007089770A2
              (en)
            
            * | 2006-01-31 | 2007-08-09 | Polychromix Corporation | Hand-held ir spectrometer with a fixed grating and a diffractive mems-array | 
        
          | EP2104930A2
              (en) | 2006-12-12 | 2009-09-30 | Evans & Sutherland Computer Corporation | System and method for aligning rgb light in a single modulator projector | 
        
          | US20080259988A1
              (en)
            
            * | 2007-01-19 | 2008-10-23 | Evans & Sutherland Computer Corporation | Optical actuator with improved response time and method of making the same | 
        
          | WO2008144749A1
              (en)
            
            * | 2007-05-21 | 2008-11-27 | Evans & Sutherland Computer Corporation | Invisible scanning safety system | 
        
          | WO2009033122A1
              (en)
            
            * | 2007-09-07 | 2009-03-12 | Evans & Sutherland Computer Corporation | Device and method for reducing etendue in a diode laser | 
        
          | US8358317B2
              (en) | 2008-05-23 | 2013-01-22 | Evans & Sutherland Computer Corporation | System and method for displaying a planar image on a curved surface | 
        
          | US8702248B1
              (en) | 2008-06-11 | 2014-04-22 | Evans & Sutherland Computer Corporation | Projection method for reducing interpixel gaps on a viewing surface | 
        
          | US8077378B1
              (en) | 2008-11-12 | 2011-12-13 | Evans & Sutherland Computer Corporation | Calibration system and method for light modulation device | 
        
          | US9641826B1
              (en) | 2011-10-06 | 2017-05-02 | Evans & Sutherland Computer Corporation | System and method for displaying distant 3-D stereo on a dome surface |