WO2000072231A3 - Wedged-shape holographic collector - Google Patents

Wedged-shape holographic collector Download PDF

Info

Publication number
WO2000072231A3
WO2000072231A3 PCT/US2000/008228 US0008228W WO0072231A3 WO 2000072231 A3 WO2000072231 A3 WO 2000072231A3 US 0008228 W US0008228 W US 0008228W WO 0072231 A3 WO0072231 A3 WO 0072231A3
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
wedged
collector
light
shaped
Prior art date
Application number
PCT/US2000/008228
Other languages
French (fr)
Other versions
WO2000072231A2 (en
Inventor
Kevin J Whitcomb
Brian J Mcmaster
Alan Shearin
Anna M Dean
Original Assignee
Psc Scanning Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Psc Scanning Inc filed Critical Psc Scanning Inc
Priority to EP00937511A priority Critical patent/EP1179200B1/en
Priority to DE60001647T priority patent/DE60001647T2/en
Publication of WO2000072231A2 publication Critical patent/WO2000072231A2/en
Publication of WO2000072231A3 publication Critical patent/WO2000072231A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/125—Details of the optical system between the polygonal mirror and the image plane
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10663—Basic scanning using moving elements using hologram
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B2006/0098—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings for scanning
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms

Abstract

A diffractive collector for an optical scanner includes a wedged-shaped substrate having holographic grating provided on a front surface, a conical-shaped back surface, and at least one detector. Substantially parallel light is made incident upon the front surface of the substrate, and the light is diffracted within the substrate to the back surface. The wedged shaped of the collector and the holographic grating cause the light to reflect back within the substrate at such an angle that the light remains within the substrate as the light propagates to the at least one detector.
PCT/US2000/008228 1999-05-21 2000-05-18 Wedged-shape holographic collector WO2000072231A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00937511A EP1179200B1 (en) 1999-05-21 2000-05-18 Wedged-shape holographic collector
DE60001647T DE60001647T2 (en) 1999-05-21 2000-05-18 WEDGE-SHAPED HOLOGRAPHIC COLLECTOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/316,030 US6169614B1 (en) 1999-05-21 1999-05-21 Wedged-shape holographic collector
US09/316,030 1999-05-21

Publications (2)

Publication Number Publication Date
WO2000072231A2 WO2000072231A2 (en) 2000-11-30
WO2000072231A3 true WO2000072231A3 (en) 2001-04-19

Family

ID=23227164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/008228 WO2000072231A2 (en) 1999-05-21 2000-05-18 Wedged-shape holographic collector

Country Status (4)

Country Link
US (2) US6169614B1 (en)
EP (1) EP1179200B1 (en)
DE (1) DE60001647T2 (en)
WO (1) WO2000072231A2 (en)

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DE29917623U1 (en) * 1999-10-06 1999-12-16 Reitter & Schefenacker Gmbh Display or illumination element for motor vehicles
US7773842B2 (en) * 2001-08-27 2010-08-10 Greiner Christoph M Amplitude and phase control in distributed optical structures
USRE42206E1 (en) 2000-03-16 2011-03-08 Steyphi Services De Llc Multiple wavelength optical source
USRE42407E1 (en) 2000-03-16 2011-05-31 Steyphi Services De Llc Distributed optical structures with improved diffraction efficiency and/or improved optical coupling
US6879441B1 (en) * 2000-03-16 2005-04-12 Thomas Mossberg Holographic spectral filter
USRE41570E1 (en) 2000-03-16 2010-08-24 Greiner Christoph M Distributed optical structures in a planar waveguide coupling in-plane and out-of-plane optical signals
US7194164B2 (en) 2000-03-16 2007-03-20 Lightsmyth Technologies Inc Distributed optical structures with improved diffraction efficiency and/or improved optical coupling
US6987911B2 (en) * 2000-03-16 2006-01-17 Lightsmyth Technologies, Inc. Multimode planar waveguide spectral filter
US7519248B2 (en) 2000-03-16 2009-04-14 Lightsmyth Technologies Inc Transmission gratings designed by computed interference between simulated optical signals and fabricated by reduction lithography
US7260290B1 (en) 2003-12-24 2007-08-21 Lightsmyth Technologies Inc Distributed optical structures exhibiting reduced optical loss
US7181103B1 (en) 2004-02-20 2007-02-20 Lightsmyth Technologies Inc Optical interconnect structures incorporating sets of diffractive elements
US20060015825A1 (en) * 2004-07-13 2006-01-19 Shinichi Mizuno 2-D symbol reading system with guide window for confirmation
US7359597B1 (en) 2004-08-23 2008-04-15 Lightsmyth Technologies Inc Birefringence control in planar optical waveguides
US7120334B1 (en) 2004-08-25 2006-10-10 Lightsmyth Technologies Inc Optical resonator formed in a planar optical waveguide with distributed optical structures
US7330614B1 (en) 2004-12-10 2008-02-12 Lightsmyth Technologies Inc. Integrated optical spectrometer incorporating sets of diffractive elements
US7327908B1 (en) 2005-03-07 2008-02-05 Lightsmyth Technologies Inc. Integrated optical sensor incorporating sets of diffractive elements
US7349599B1 (en) 2005-03-14 2008-03-25 Lightsmyth Technologies Inc Etched surface gratings fabricated using computed interference between simulated optical signals and reduction lithography
US7643400B1 (en) 2005-03-24 2010-01-05 Lightsmyth Technologies Inc Optical encoding of data with distributed diffractive structures
US7190856B1 (en) 2005-03-28 2007-03-13 Lightsmyth Technologies Inc Reconfigurable optical add-drop multiplexer incorporating sets of diffractive elements
US8068709B2 (en) * 2005-09-12 2011-11-29 Lightsmyth Technologies Inc. Transmission gratings designed by computed interference between simulated optical signals and fabricated by reduction lithography
US20070103756A1 (en) * 2005-11-08 2007-05-10 Poco Graphite, Inc. System, method, and apparatus for conversion bonding of precursor subcomponents into a unitary monolith
US7810976B2 (en) * 2007-07-19 2010-10-12 Panasonic Corporation Surface emitting apparatus and image display apparatus using the surface emitting apparatus
KR101753739B1 (en) 2010-12-08 2017-07-05 삼성전자주식회사 Solar light concentration plate
KR101880729B1 (en) 2011-02-01 2018-08-20 삼성전자주식회사 Solar light concentration plate
US9033236B2 (en) * 2011-04-26 2015-05-19 Symbol Technologies, Inc. Point-of-transaction workstation for and method of imaging indicia over full coverage scan zone occupied by unskewed subfields of view
DE112018000879T5 (en) * 2017-02-15 2019-10-24 Akonia Holographics, Llc SLANT ILLUMINATOR
US11119261B1 (en) 2017-11-01 2021-09-14 Akonia Holographics Llc Coherent skew mirrors
DE102018105607B4 (en) * 2018-03-12 2022-05-25 Sick Ag Photoelectric sensor and method for detecting objects in a surveillance area
DE102019124265B4 (en) * 2019-09-10 2023-08-10 Sick Ag Photoelectric sensor and method for detecting objects in a surveillance area
DE102019124266A1 (en) * 2019-09-10 2021-03-11 Sick Ag Optoelectronic sensor and method for detecting objects in a surveillance area

Citations (8)

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US3763372A (en) * 1967-07-13 1973-10-02 Inventors & Investors Inc Zone plate optics monolithically integrated with photoelectric elements
US4886341A (en) * 1986-07-02 1989-12-12 Hitachi, Ltd. Diffraction grating having a plurality of different grating constants
EP0464284A2 (en) * 1990-06-26 1992-01-08 Photographic Sciences Corporation Scan modules for bar code readers
US5268985A (en) * 1991-07-30 1993-12-07 Nippondenso Co., Ltd. Light-guiding device having a hologram layer
WO1996011450A1 (en) * 1994-10-05 1996-04-18 Psc Inc. Bar code scanning and reading apparatus and diffractive light collection device suitable for use therein
US5680257A (en) * 1995-07-31 1997-10-21 Texas Instruments Incorporated Light collection optics for spatial light modulator
US5786585A (en) * 1992-12-04 1998-07-28 Psc, Inc. Optical symbol (bar code) reading systems and devices
WO1999056234A1 (en) * 1998-04-29 1999-11-04 Psc Inc. Scanner having movable laser, detector arrangement and two flexures

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DE3069558D1 (en) 1980-08-21 1984-12-06 Ibm Identification card comprising information in holographic form
EP0360969B1 (en) 1988-09-30 1993-12-15 Landis & Gyr Business Support AG Diffraction element
US5013133A (en) 1988-10-31 1991-05-07 The University Of Rochester Diffractive optical imaging lens systems
US5231277A (en) 1988-12-20 1993-07-27 Fujitsu Limited Optical scanner using plannar reflecting holograms
US5019698A (en) 1989-08-07 1991-05-28 Photographic Sciences Corporation Bar code reading systems having electrical power conservation and laser radiation power limiting means
KR940010808B1 (en) 1989-09-18 1994-11-16 후지쓰 가부시끼가이샤 Laser scanner for bar code reader
US5099110A (en) * 1989-10-30 1992-03-24 Symbol Technologies, Inc. Power saving scanning arrangement
US5184002A (en) * 1989-11-24 1993-02-02 Optical Recording Corporation Optical scanner
US5141420A (en) 1990-06-18 1992-08-25 Copeland Corporation Scroll compressor discharge valve
US5268564A (en) 1990-08-03 1993-12-07 Symbol Technologies, Inc. Bar code scanner actuated by detection of scanner motion
US5237161A (en) 1991-06-05 1993-08-17 Psc, Inc. 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
US5200597A (en) 1991-02-07 1993-04-06 Psc, Inc. Digitally controlled system for scanning and reading bar codes
US5212371A (en) 1991-03-01 1993-05-18 Psc, Inc. Hand held bar code scanner with improved aiming means
US5258604A (en) 1992-01-28 1993-11-02 Psc, Inc. Bar code scanner
US6112993A (en) * 1998-09-03 2000-09-05 Psc Scanning, Inc. Flexible dither mount with rotation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763372A (en) * 1967-07-13 1973-10-02 Inventors & Investors Inc Zone plate optics monolithically integrated with photoelectric elements
US4886341A (en) * 1986-07-02 1989-12-12 Hitachi, Ltd. Diffraction grating having a plurality of different grating constants
EP0464284A2 (en) * 1990-06-26 1992-01-08 Photographic Sciences Corporation Scan modules for bar code readers
US5268985A (en) * 1991-07-30 1993-12-07 Nippondenso Co., Ltd. Light-guiding device having a hologram layer
US5786585A (en) * 1992-12-04 1998-07-28 Psc, Inc. Optical symbol (bar code) reading systems and devices
WO1996011450A1 (en) * 1994-10-05 1996-04-18 Psc Inc. Bar code scanning and reading apparatus and diffractive light collection device suitable for use therein
US5680257A (en) * 1995-07-31 1997-10-21 Texas Instruments Incorporated Light collection optics for spatial light modulator
WO1999056234A1 (en) * 1998-04-29 1999-11-04 Psc Inc. Scanner having movable laser, detector arrangement and two flexures

Also Published As

Publication number Publication date
EP1179200B1 (en) 2003-03-12
US6169614B1 (en) 2001-01-02
EP1179200A2 (en) 2002-02-13
DE60001647T2 (en) 2004-04-08
US6259545B1 (en) 2001-07-10
WO2000072231A2 (en) 2000-11-30
DE60001647D1 (en) 2003-04-17

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