DE3884171D1 - Lichtmodulator-Projektionssystem mit verbesserter Beleuchtung. - Google Patents

Lichtmodulator-Projektionssystem mit verbesserter Beleuchtung.

Info

Publication number
DE3884171D1
DE3884171D1 DE88202957T DE3884171T DE3884171D1 DE 3884171 D1 DE3884171 D1 DE 3884171D1 DE 88202957 T DE88202957 T DE 88202957T DE 3884171 T DE3884171 T DE 3884171T DE 3884171 D1 DE3884171 D1 DE 3884171D1
Authority
DE
Germany
Prior art keywords
light modulator
projection system
improved lighting
modulator projection
lighting
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.)
Expired - Fee Related
Application number
DE88202957T
Other languages
English (en)
Other versions
DE3884171T2 (de
Inventor
Arne Lex Duwaer
Jill Forer Goldenberg
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3884171D1 publication Critical patent/DE3884171D1/de
Publication of DE3884171T2 publication Critical patent/DE3884171T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
    • G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3152—Modulator illumination systems for shaping the light beam
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Projection Apparatus (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
DE88202957T 1987-12-23 1988-12-19 Lichtmodulator-Projektionssystem mit verbesserter Beleuchtung. Expired - Fee Related DE3884171T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13704987A 1987-12-23 1987-12-23

Publications (2)

Publication Number Publication Date
DE3884171D1 true DE3884171D1 (de) 1993-10-21
DE3884171T2 DE3884171T2 (de) 1994-04-07

Family

ID=22475607

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88202957T Expired - Fee Related DE3884171T2 (de) 1987-12-23 1988-12-19 Lichtmodulator-Projektionssystem mit verbesserter Beleuchtung.

Country Status (4)

Country Link
EP (1) EP0322069B1 (de)
JP (1) JP2556895B2 (de)
KR (1) KR970006205B1 (de)
DE (1) DE3884171T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956759A (en) * 1988-12-30 1990-09-11 North American Philips Corporation Illumination system for non-imaging reflective collector
JPH03210548A (ja) * 1990-01-16 1991-09-13 Ushio Inc 投光器
US5142387A (en) * 1990-04-11 1992-08-25 Mitsubishi Denki Kabushiki Kaisha Projection-type display device having light source means including a first and second concave mirrors
US6123436A (en) * 1997-08-05 2000-09-26 Vari-Lite, Inc. Optical device for modifying the angular and spatial distribution of illuminating energy
TW472491B (en) * 1999-03-19 2002-01-11 Seiko Epson Corp Projection system and projector
CA2366802A1 (en) 2001-01-17 2002-07-17 Bayer Corporation Method and apparatus for using infrared readings to detect misidentification of a diagnostic test strip in a reflectance spectrometer
US7131736B2 (en) * 2002-05-17 2006-11-07 Bierhuizen Serge J A Efficient illumination systems for reduced étendue color video projection systems
US7234820B2 (en) * 2005-04-11 2007-06-26 Philips Lumileds Lighting Company, Llc Illuminators using reflective optics with recycling and color mixing
US20070165186A1 (en) * 2006-01-13 2007-07-19 Copner Nigel J Light source system and an image projection system
JP2007264339A (ja) * 2006-03-29 2007-10-11 Seiko Epson Corp 変調装置及びプロジェクタ
DE102006050880A1 (de) 2006-06-30 2008-04-17 Osram Opto Semiconductors Gmbh Optoelektronisches Bauteil und Beleuchtungseinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588669B1 (fr) * 1985-03-19 1990-11-09 Malifaud Pierre Projecteur de rayonnement produisant un flux a haut rendement utile et a haute homogeneite dans des angles d'ouvertures controles, notamment a partir d'une source ponctuelle ou quasi-ponctuelle
EP0258927A3 (de) * 1986-08-22 1991-01-09 North American Philips Corporation Anzeigesystem

Also Published As

Publication number Publication date
JP2556895B2 (ja) 1996-11-27
EP0322069B1 (de) 1993-09-15
DE3884171T2 (de) 1994-04-07
KR970006205B1 (ko) 1997-04-24
KR890010589A (ko) 1989-08-09
EP0322069A1 (de) 1989-06-28
JPH021818A (ja) 1990-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee