EP0916228A1 - Dispositif pour moduler l'intensite d'un faisceau lumineux, procede permettant de produire ledit dispositif, procede pour moduler l'intensite d'un faisceau lumineux et utilisation dudit dispositif - Google Patents

Dispositif pour moduler l'intensite d'un faisceau lumineux, procede permettant de produire ledit dispositif, procede pour moduler l'intensite d'un faisceau lumineux et utilisation dudit dispositif

Info

Publication number
EP0916228A1
EP0916228A1 EP98909461A EP98909461A EP0916228A1 EP 0916228 A1 EP0916228 A1 EP 0916228A1 EP 98909461 A EP98909461 A EP 98909461A EP 98909461 A EP98909461 A EP 98909461A EP 0916228 A1 EP0916228 A1 EP 0916228A1
Authority
EP
European Patent Office
Prior art keywords
modulator
modulators
bundle
intensity
ucht
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98909461A
Other languages
German (de)
English (en)
Inventor
Christhard Deter
Jörg WUNDERLICH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LDT Laser Display Technology GmbH
Original Assignee
LDT GmbH and Co Laser Display Technologie KG
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 LDT GmbH and Co Laser Display Technologie KG filed Critical LDT GmbH and Co Laser Display Technologie KG
Publication of EP0916228A1 publication Critical patent/EP0916228A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0305—Constructional arrangements
    • G02F1/0322—Arrangements comprising two or more independently controlled crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/11—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B27/00—Planetaria; Globes
    • G09B27/02—Tellurions; Orreries
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
    • G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
    • G09B9/30—Simulation of view from aircraft
    • G09B9/32—Simulation of view from aircraft by projected image
    • G09B9/326—Simulation of view from aircraft by projected image the image being transformed by optical means

Abstract

L'invention concerne un dispositif (14) servant à moduler l'intensité d'un faisceau lumineux (12) qui arrive dans l'entrée d'un modulateur (50), pilotable avec un signal de commande (54) entre deux états. Dans un premier état, une part minimale du faisceau lumineux (12) et dans un second état, une part maximale du faisceau lumineux (12) émergent d'une sortie du modulateur. Il est prévu que le dispositif (14) présente au moins deux modulateurs (50, 50', 50') disposés en une configuration où un faisceau lumineux sortant d'un des modulateurs (50, 50', 50') soit introduit dans l'entrée d'un modulateur (50', 50') suivant, disposé dans le sens de diffusion de la lumière. Le faisceau lumineux (16) modulé en intensité à l'aide dudit dispositif peut être extrait du dernier des modulateurs (50), dans la série ainsi formée, de manière à améliorer l'extinction du dispositif (14) par rapport à chaque modulateur (50) individuel.
EP98909461A 1997-06-03 1998-02-13 Dispositif pour moduler l'intensite d'un faisceau lumineux, procede permettant de produire ledit dispositif, procede pour moduler l'intensite d'un faisceau lumineux et utilisation dudit dispositif Withdrawn EP0916228A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19723208A DE19723208A1 (de) 1997-06-03 1997-06-03 Vorrichtung zum Intensitätsmodulieren eines Lichtbündels, ein Herstellungsverfahren für diese, ein Verfahren zum Intensitätsmodulieren eines Lichtbündels sowie Verwendungen von der Vorrichtung
DE19723208 1997-06-03
PCT/EP1998/000824 WO1998056186A1 (fr) 1997-06-03 1998-02-13 Dispositif pour moduler l'intensite d'un faisceau lumineux, procede permettant de produire ledit dispositif, procede pour moduler l'intensite d'un faisceau lumineux et utilisation dudit dispositif

Publications (1)

Publication Number Publication Date
EP0916228A1 true EP0916228A1 (fr) 1999-05-19

Family

ID=7831251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909461A Withdrawn EP0916228A1 (fr) 1997-06-03 1998-02-13 Dispositif pour moduler l'intensite d'un faisceau lumineux, procede permettant de produire ledit dispositif, procede pour moduler l'intensite d'un faisceau lumineux et utilisation dudit dispositif

Country Status (5)

Country Link
EP (1) EP0916228A1 (fr)
JP (1) JPH11514109A (fr)
DE (1) DE19723208A1 (fr)
IL (1) IL127413A0 (fr)
WO (1) WO1998056186A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2002029477A1 (ja) * 2000-10-04 2004-02-12 三菱電機株式会社 光可変減衰装置
JP4104844B2 (ja) * 2001-10-17 2008-06-18 コニカミノルタプラネタリウム株式会社 プラネタリウムおよび星野投映原板
DE102007057129B4 (de) * 2007-11-24 2010-07-22 Hochschule Mittweida (Fh) Verfahren und Einrichtung zur Hochleistungs-Mikrobearbeitung eines Körpers oder einer Pulverschicht mit einem Laser hoher Brillanz
DE102008029786B4 (de) 2008-06-24 2013-10-24 Carl Zeiss Ag Projektor und Verfahren zum Projizieren eines Bildes
GB2473393B (en) 2008-06-24 2011-12-07 Zeiss Carl Ag Projector and method for projecting an image
BRPI0910156B1 (pt) 2008-06-24 2019-12-24 Zeiss Carl Ag sistema de projeção
JP5853332B2 (ja) * 2011-07-11 2016-02-09 株式会社ブイ・テクノロジー レーザ用アッテネータ及びレーザ発生装置
KR101915628B1 (ko) 2011-07-11 2018-11-06 브이 테크놀로지 씨오. 엘티디 펄스 레이저 발진기 및 펄스 레이저 발진 제어 방법
US11035789B2 (en) * 2019-04-03 2021-06-15 Picomole Inc. Cavity ring-down spectroscopy system and method of modulating a light beam therein

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788710A (en) * 1952-08-14 1957-04-16 Polaroid Corp Electro-optical devices
DE1964648A1 (de) * 1968-12-26 1970-07-09 Thomson Csf Lichtwellenmodulationssystem,insbesondere fuer Sichtgeraete
JP2590988B2 (ja) * 1987-12-11 1997-03-19 ミノルタ株式会社 光シャッタアレイ
DE3830455A1 (de) * 1988-09-08 1990-03-22 Klaus Dipl Phys Kinzinger Grossflaechige anzeigeeinrichtung
JPH02126219A (ja) * 1988-11-04 1990-05-15 Fuji Elelctrochem Co Ltd 光アイソレータ
US5546139A (en) * 1993-06-28 1996-08-13 Bacs, Jr.; Aron Moving imagery projection system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9856186A1 *

Also Published As

Publication number Publication date
IL127413A0 (en) 1999-10-28
JPH11514109A (ja) 1999-11-30
DE19723208A1 (de) 1998-12-10
WO1998056186A1 (fr) 1998-12-10

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