IT1058441B - Portatore di frequenza spaziale e processo per la sua preparazione - Google Patents

Portatore di frequenza spaziale e processo per la sua preparazione

Info

Publication number
IT1058441B
IT1058441B IT21265/76A IT2126576A IT1058441B IT 1058441 B IT1058441 B IT 1058441B IT 21265/76 A IT21265/76 A IT 21265/76A IT 2126576 A IT2126576 A IT 2126576A IT 1058441 B IT1058441 B IT 1058441B
Authority
IT
Italy
Prior art keywords
spaceful
bearer
preparation
spaceful bearer
Prior art date
Application number
IT21265/76A
Other languages
English (en)
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Application granted granted Critical
Publication of IT1058441B publication Critical patent/IT1058441B/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1828—Diffraction gratings having means for producing variable diffraction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4294—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect in multispectral systems, e.g. UV and visible

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
IT21265/76A 1975-03-17 1976-03-16 Portatore di frequenza spaziale e processo per la sua preparazione IT1058441B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/559,168 US4017158A (en) 1975-03-17 1975-03-17 Spatial frequency carrier and process of preparing same

Publications (1)

Publication Number Publication Date
IT1058441B true IT1058441B (it) 1982-04-10

Family

ID=24232545

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21265/76A IT1058441B (it) 1975-03-17 1976-03-16 Portatore di frequenza spaziale e processo per la sua preparazione

Country Status (7)

Country Link
US (1) US4017158A (it)
JP (1) JPS51117645A (it)
CA (1) CA1049303A (it)
DE (1) DE2611097A1 (it)
FR (1) FR2304949A1 (it)
GB (1) GB1537286A (it)
IT (1) IT1058441B (it)

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657246C2 (de) * 1976-12-17 1978-09-28 Hoechst Ag, 6000 Frankfurt Original eines Informationsträgers, Verfahren zum Herstellen des Originals, Verfahren zum Herstellen einer Matrize zum Prägen des Originals sowie Informa tionsträger, der mit der Matrize hergestellt ist
DE2734580C2 (de) * 1977-08-01 1979-02-15 Hoechst Ag, 6000 Frankfurt Verfahren zum Herstellen eines Originals eines Informationsträgers
DE2734581C2 (de) * 1977-08-01 1979-02-15 Hoechst Ag, 6000 Frankfurt Original eines Informationsträgers und Verfahren zum Herstellen des Originals
DE3176833D1 (en) * 1980-11-05 1988-09-08 Stephen Paul Mcgrew Diffractive color and texture effects for the graphic arts
US4589686A (en) * 1980-11-05 1986-05-20 Mcgrew Stephen P Anticounterfeiting method and device
US4717221A (en) * 1980-11-05 1988-01-05 Mcgrew Stephen P Diffractive color and texture effects for the graphic arts
US4629282A (en) * 1980-11-05 1986-12-16 Mcgrew Stephen P Diffractive color and texture effects for the graphic arts
US4447111A (en) * 1982-02-25 1984-05-08 Grumman Aerospace Corporation Achromatic holographic element
US4671603A (en) * 1983-11-17 1987-06-09 Pilkington P.E. Limited Optical filters and multiplexing-demultiplexing devices using the same
US4669811A (en) * 1983-11-17 1987-06-02 Pilkington P.E. Limited Optical filtering apparatus
US4737448A (en) * 1986-03-31 1988-04-12 Xerox Corporation Color images formed by multiple diffraction gratings
US4788116A (en) * 1986-03-31 1988-11-29 Xerox Corporation Full color images using multiple diffraction gratings and masking techniques
US5340637A (en) * 1986-09-16 1994-08-23 Hitachi, Ltd. Optical device diffraction gratings and a photomask for use in the same
US5292620A (en) * 1988-01-15 1994-03-08 E. I. Du Pont De Nemours And Company Optical waveguide devices, elements for making the devices and methods of making the devices and elements
US5015059A (en) * 1988-01-15 1991-05-14 E. I. Du Pont De Nemours And Company Optical fiber connector assemblies and methods of making the assemblies
US4883743A (en) * 1988-01-15 1989-11-28 E. I. Du Pont De Nemours And Company Optical fiber connector assemblies and methods of making the assemblies
US5822092A (en) 1988-07-18 1998-10-13 Dimensional Arts System for making a hologram of an image by manipulating object beam characteristics to reflect image data
US5058992A (en) * 1988-09-07 1991-10-22 Toppan Printing Co., Ltd. Method for producing a display with a diffraction grating pattern and a display produced by the method
US5098804A (en) * 1989-01-13 1992-03-24 E. I. Du Pont De Nemours And Company Multiplexer-demultiplexer for integrated optic circuit
US5267060A (en) * 1990-09-28 1993-11-30 Rockwell International Corporation Reflective color light filter and method of manufacture
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
DE4307277A1 (de) * 1992-10-10 1994-09-15 Hoerdum Martin Fernsicht-Hologramme
US7132200B1 (en) * 1992-11-27 2006-11-07 Dai Nippon Printing Co., Ltd. Hologram recording sheet, holographic optical element using said sheet, and its production process
US5537232A (en) * 1993-10-05 1996-07-16 In Focus Systems, Inc. Reflection hologram multiple-color filter array formed by sequential exposure to a light source
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
US5661592A (en) * 1995-06-07 1997-08-26 Silicon Light Machines Method of making and an apparatus for a flat diffraction grating light valve
US5798743A (en) * 1995-06-07 1998-08-25 Silicon Light Machines Clear-behind matrix addressing for display systems
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
US5982553A (en) * 1997-03-20 1999-11-09 Silicon Light Machines Display device incorporating one-dimensional grating light-valve array
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
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
US6303986B1 (en) * 1998-07-29 2001-10-16 Silicon Light Machines Method of and apparatus for sealing an hermetic lid to a semiconductor die
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
US6782205B2 (en) * 2001-06-25 2004-08-24 Silicon Light Machines Method and apparatus for dynamic equalization in wavelength division multiplexing
US6747781B2 (en) * 2001-06-25 2004-06-08 Silicon Light Machines, Inc. Method, apparatus, and diffuser for reducing laser speckle
US6646778B2 (en) * 2001-08-01 2003-11-11 Silicon Light Machines Grating light valve with encapsulated dampening gas
US6829092B2 (en) * 2001-08-15 2004-12-07 Silicon Light Machines, Inc. Blazed grating light valve
US6639722B2 (en) * 2001-08-15 2003-10-28 Silicon Light Machines Stress tuned 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
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
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
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
US6987600B1 (en) 2002-12-17 2006-01-17 Silicon Light Machines Corporation Arbitrary phase profile for better equalization in dynamic gain equalizer
US7057819B1 (en) 2002-12-17 2006-06-06 Silicon Light Machines Corporation High contrast tilting ribbon blazed grating
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
US6822795B2 (en) * 2003-01-13 2004-11-23 Kuo-Yen Lai Dynamic image device with diffractive optical element
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
US6829077B1 (en) 2003-02-28 2004-12-07 Silicon Light Machines, Inc. Diffractive light modulator with dynamically rotatable diffraction plane
US7391973B1 (en) 2003-02-28 2008-06-24 Silicon Light Machines Corporation Two-stage gain equalizer
US7027202B1 (en) 2003-02-28 2006-04-11 Silicon Light Machines Corp Silicon substrate as a light modulator sacrificial layer
US6922273B1 (en) 2003-02-28 2005-07-26 Silicon Light Machines Corporation PDL mitigation structure for diffractive MEMS and gratings
US6806997B1 (en) 2003-02-28 2004-10-19 Silicon Light Machines, Inc. Patterned diffractive light modulator ribbon for PDL reduction
US7042611B1 (en) 2003-03-03 2006-05-09 Silicon Light Machines Corporation Pre-deflected bias ribbons
US20070194239A1 (en) * 2006-01-31 2007-08-23 Mcallister Abraham Apparatus and method providing a hand-held spectrometer
US7891818B2 (en) * 2006-12-12 2011-02-22 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
US20090219491A1 (en) * 2007-10-18 2009-09-03 Evans & Sutherland Computer Corporation Method of combining multiple Gaussian beams for efficient uniform illumination of one-dimensional light modulators
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
US10180520B2 (en) 2015-08-24 2019-01-15 Akonia Holographics, Llc Skew mirrors, methods of use, and methods of manufacture
JP7013384B2 (ja) * 2016-04-04 2022-01-31 アコニア ホログラフィックス、エルエルシー 瞳等化
US10317679B2 (en) 2016-04-04 2019-06-11 Akonia Holographics, Llc Light homogenization
US10649143B2 (en) 2016-06-20 2020-05-12 Akonia Holographics Llc Polarization management
US11774657B2 (en) 2016-10-12 2023-10-03 Akonia Holographics Llc Spatially varying skew mirrors
EP3692400B1 (en) 2017-10-04 2023-10-11 Akonia Holographics, LLC Comb-shifted skew mirrors
WO2019079014A1 (en) * 2017-10-16 2019-04-25 Akonia Holographics Llc HOMOGENIZATION OF TWO-DIMENSIONAL LIGHT
US11409238B2 (en) 2017-11-30 2022-08-09 Google Llc Systems, devices, and methods for aperture-free hologram recording
KR20210113594A (ko) 2019-01-15 2021-09-16 루머스 리미티드 대칭 광 가이드 광학 요소를 제작하는 방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314052A (en) * 1963-04-12 1967-04-11 Ibm Light modulation system
US3561859A (en) * 1968-02-14 1971-02-09 Technical Operations Inc Optical apparatus and methods for viewing or displaying images
BE755251A (fr) * 1969-08-25 1971-02-25 Du Pont Enregistrement holographique dans des couches photopoly- merisables
US3716286A (en) * 1969-12-11 1973-02-13 Holotron Corp Holographic television record system
US3667946A (en) * 1970-09-23 1972-06-06 Holotron Corp Surface treatment of photopolymer film used for recording holograms
US3695744A (en) * 1971-01-14 1972-10-03 Rca Corp Holographic multicolor technique
US3732363A (en) * 1971-08-16 1973-05-08 Columbia Broadcasting Syst Inc Information record utilizing diffraction grating and methods of recording and reproducing the information thereof
US3947105A (en) * 1973-09-21 1976-03-30 Technical Operations, Incorporated Production of colored designs

Also Published As

Publication number Publication date
CA1049303A (en) 1979-02-27
GB1537286A (en) 1978-12-29
FR2304949B1 (it) 1982-02-26
JPS51117645A (en) 1976-10-15
FR2304949A1 (fr) 1976-10-15
DE2611097A1 (de) 1976-09-30
US4017158A (en) 1977-04-12

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