DE68922265D1 - System zur Darstellung eines Bildes oder Objekts in Gegenwart von Umgebungslicht. - Google Patents

System zur Darstellung eines Bildes oder Objekts in Gegenwart von Umgebungslicht.

Info

Publication number
DE68922265D1
DE68922265D1 DE68922265T DE68922265T DE68922265D1 DE 68922265 D1 DE68922265 D1 DE 68922265D1 DE 68922265 T DE68922265 T DE 68922265T DE 68922265 T DE68922265 T DE 68922265T DE 68922265 D1 DE68922265 D1 DE 68922265D1
Authority
DE
Germany
Prior art keywords
light
source
mode
visual signal
ambient light
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
DE68922265T
Other languages
English (en)
Other versions
DE68922265T2 (de
Inventor
Ian Alexander Shanks
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.)
Central Research Laboratories Ltd
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Application granted granted Critical
Publication of DE68922265D1 publication Critical patent/DE68922265D1/de
Publication of DE68922265T2 publication Critical patent/DE68922265T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Eye Examination Apparatus (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
DE68922265T 1988-10-06 1989-10-05 System zur Darstellung eines Bildes oder Objekts in Gegenwart von Umgebungslicht. Expired - Fee Related DE68922265T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888823523A GB8823523D0 (en) 1988-10-06 1988-10-06 Method & apparatus for producing required visual signal for direct observation from first source of light in presence of second source of light

Publications (2)

Publication Number Publication Date
DE68922265D1 true DE68922265D1 (de) 1995-05-24
DE68922265T2 DE68922265T2 (de) 1995-11-23

Family

ID=10644838

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68922265T Expired - Fee Related DE68922265T2 (de) 1988-10-06 1989-10-05 System zur Darstellung eines Bildes oder Objekts in Gegenwart von Umgebungslicht.

Country Status (8)

Country Link
US (1) US4997271A (de)
EP (1) EP0363207B1 (de)
JP (1) JP3242909B2 (de)
CN (1) CN1045458A (de)
AT (1) ATE121584T1 (de)
CA (1) CA2000317A1 (de)
DE (1) DE68922265T2 (de)
GB (1) GB8823523D0 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175637A (en) * 1990-04-05 1992-12-29 Raychem Corporation Displays having improved contrast
US5379083A (en) * 1994-02-15 1995-01-03 Raychem Corporation Projector
JP2001166377A (ja) * 1999-12-09 2001-06-22 Olympus Optical Co Ltd 画像投影システム
US7221374B2 (en) * 2003-10-21 2007-05-22 Hewlett-Packard Development Company, L.P. Adjustment of color in displayed images based on identification of ambient light sources
WO2006060785A2 (en) * 2004-12-01 2006-06-08 Datalogic Scanning, Inc. Triggering illumination for a data reader
US7234641B2 (en) * 2004-12-01 2007-06-26 Datalogic Scanning, Inc. Illumination pulsing method for a data reader
US7614753B2 (en) * 2005-10-31 2009-11-10 Hewlett-Packard Development Company, L.P. Determining an adjustment
US20070206280A1 (en) * 2006-03-06 2007-09-06 Hewlett-Packard Development Company Lp Light source and screen
JP6200798B2 (ja) * 2013-12-18 2017-09-20 株式会社 オルタステクノロジー 液晶表示装置及びヘッドアップディスプレイ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1047953A (en) * 1962-07-26 1966-11-09 David Marshall Goodman Improved cathode ray tubes
US4072411A (en) * 1976-05-03 1978-02-07 Eastman Kodak Company Display device having image sense reversal capability
JPS60165632A (ja) * 1984-02-08 1985-08-28 Fujitsu Ltd 立体スクリ−ン装置
WO1986006237A1 (en) * 1984-09-29 1986-10-23 Masataka Negishi Apparatus for forming images
US4726662A (en) * 1985-09-24 1988-02-23 Talig Corporation Display including a prismatic lens system or a prismatic reflective system

Also Published As

Publication number Publication date
DE68922265T2 (de) 1995-11-23
EP0363207B1 (de) 1995-04-19
EP0363207A3 (de) 1991-07-03
ATE121584T1 (de) 1995-05-15
CA2000317A1 (en) 1990-04-06
EP0363207A2 (de) 1990-04-11
JP3242909B2 (ja) 2001-12-25
GB8823523D0 (en) 1988-11-16
US4997271A (en) 1991-03-05
JPH02168293A (ja) 1990-06-28
CN1045458A (zh) 1990-09-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: CENTRAL RESEARCH LABORATORIES LTD., HAYES, MIDDLES

8339 Ceased/non-payment of the annual fee