DE69315315D1 - Bildprojektionssystem mit automatischer Scharfeinstellung - Google Patents

Bildprojektionssystem mit automatischer Scharfeinstellung

Info

Publication number
DE69315315D1
DE69315315D1 DE69315315T DE69315315T DE69315315D1 DE 69315315 D1 DE69315315 D1 DE 69315315D1 DE 69315315 T DE69315315 T DE 69315315T DE 69315315 T DE69315315 T DE 69315315T DE 69315315 D1 DE69315315 D1 DE 69315315D1
Authority
DE
Germany
Prior art keywords
projection system
image projection
automatic focus
focus
automatic
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
DE69315315T
Other languages
English (en)
Other versions
DE69315315T2 (de
Inventor
Wilhelmus Adrianus G Timmers
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
Koninklijke Philips Electronics NV
Philips Electronics 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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69315315D1 publication Critical patent/DE69315315D1/de
Application granted granted Critical
Publication of DE69315315T2 publication Critical patent/DE69315315T2/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
    • 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
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • G03B33/10—Simultaneous recording or projection
    • G03B33/12—Simultaneous recording or projection using beam-splitting or beam-combining systems, e.g. dichroic mirrors
    • 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
    • H04N9/317—Convergence or focusing systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Automatic Focus Adjustment (AREA)
  • Transforming Electric Information Into Light Information (AREA)
DE69315315T 1992-12-28 1993-12-23 Bildprojektionssystem mit automatischer Scharfeinstellung Expired - Fee Related DE69315315T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92204088 1992-12-28

Publications (2)

Publication Number Publication Date
DE69315315D1 true DE69315315D1 (de) 1998-01-02
DE69315315T2 DE69315315T2 (de) 1998-04-30

Family

ID=8211175

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69315315T Expired - Fee Related DE69315315T2 (de) 1992-12-28 1993-12-23 Bildprojektionssystem mit automatischer Scharfeinstellung

Country Status (3)

Country Link
US (1) US5400093A (de)
JP (1) JPH06284362A (de)
DE (1) DE69315315T2 (de)

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KR0142783B1 (ko) * 1994-03-19 1998-07-15 구자홍 프로젝터의 경사면 투사시 화상보정장치 및 방법
JP3380083B2 (ja) * 1994-08-12 2003-02-24 ペンタックス株式会社 投影装置及び投影装置のピント調整方法
US5795047A (en) * 1994-12-09 1998-08-18 Matsushita Electric Industrial Co., Ltd. Projection lens and projection display apparatus
US6422704B1 (en) * 1998-06-26 2002-07-23 Matsushita Electric Industrial Co., Ltd. Projector that automatically adjusts the projection parameters
US6548795B1 (en) * 1999-10-21 2003-04-15 3M Innovative Properties Company Autofocus Z stage
EP1269756B1 (de) * 2000-03-15 2004-05-26 Imax Corporation Verbesserungen an dmd-bildanzeigevorrichtungen
WO2001096907A2 (en) * 2000-03-31 2001-12-20 Imax Corporation Digital projection equipment and techniques
CA2409254C (en) * 2000-04-18 2010-07-06 Imax Corporation Methods and systems for low loss separation and combination of light
CA2414359C (en) * 2000-07-03 2011-04-19 Imax Corporation Equipment and techniques for providing invisible seaming of multiple projection displays
TW446848B (en) * 2000-11-29 2001-07-21 Acer Comm & Amp Multimedia Inc Projection system for automatically adjusting focal length and method thereof
WO2002095487A1 (en) * 2001-05-18 2002-11-28 3M Innovative Properties Company Polarization arrangement
US20060007406A1 (en) * 2002-10-21 2006-01-12 Sean Adkins Equipment, systems and methods for control of color in projection displays
KR100933291B1 (ko) * 2003-09-20 2009-12-22 삼성전자주식회사 2파장 레이저 다이오드의 사용을 위한 광검출기
JP2006003427A (ja) * 2004-06-15 2006-01-05 Canon Inc 焦点検出装置及び撮影装置
US8251512B2 (en) * 2004-07-08 2012-08-28 Imax Corporation Equipment and methods for the display of high resolution images using multiple projection displays
JP2006317795A (ja) * 2005-05-13 2006-11-24 Toshiba Corp 投射装置と投射装置の測距方法
US7123811B1 (en) 2005-09-01 2006-10-17 Chunghwa Picture Tubes, Ltd. Circular display device with a projective light source
US7620309B2 (en) * 2006-04-04 2009-11-17 Adobe Systems, Incorporated Plenoptic camera
TWI292052B (en) * 2006-05-09 2008-01-01 Young Optics Inc Optical projection and image detection apparatus
US7872796B2 (en) 2007-01-25 2011-01-18 Adobe Systems Incorporated Light field microscope with lenslet array
US8290358B1 (en) 2007-06-25 2012-10-16 Adobe Systems Incorporated Methods and apparatus for light-field imaging
WO2009020977A1 (en) 2007-08-06 2009-02-12 Adobe Systems Incorporated Method and apparatus for radiance capture by multiplexing in the frequency domain
US7956924B2 (en) * 2007-10-18 2011-06-07 Adobe Systems Incorporated Fast computational camera based on two arrays of lenses
US8189065B2 (en) * 2008-01-23 2012-05-29 Adobe Systems Incorporated Methods and apparatus for full-resolution light-field capture and rendering
US7962033B2 (en) * 2008-01-23 2011-06-14 Adobe Systems Incorporated Methods and apparatus for full-resolution light-field capture and rendering
US8155456B2 (en) 2008-04-29 2012-04-10 Adobe Systems Incorporated Method and apparatus for block-based compression of light-field images
US8244058B1 (en) 2008-05-30 2012-08-14 Adobe Systems Incorporated Method and apparatus for managing artifacts in frequency domain processing of light-field images
EP2133726B1 (de) * 2008-06-10 2011-06-01 Thomson Licensing Mehrbildaufnahmesystem mit verbesserter Tiefenbildauflösung
US7949252B1 (en) 2008-12-11 2011-05-24 Adobe Systems Incorporated Plenoptic camera with large depth of field
US8189089B1 (en) 2009-01-20 2012-05-29 Adobe Systems Incorporated Methods and apparatus for reducing plenoptic camera artifacts
JP5640420B2 (ja) * 2009-05-29 2014-12-17 株式会社リコー 投影型画像表示装置
US8345144B1 (en) 2009-07-15 2013-01-01 Adobe Systems Incorporated Methods and apparatus for rich image capture with focused plenoptic cameras
US8228417B1 (en) 2009-07-15 2012-07-24 Adobe Systems Incorporated Focused plenoptic camera employing different apertures or filtering at different microlenses
US8400555B1 (en) 2009-12-01 2013-03-19 Adobe Systems Incorporated Focused plenoptic camera employing microlenses with different focal lengths
US8665367B2 (en) * 2010-01-29 2014-03-04 Sharp Laboratories Of America, Inc. Video resolution enhancement technique
PL2531880T3 (pl) * 2010-02-01 2017-09-29 Illumina Inc. Sposoby ogniskowania oraz układy optyczne i zespoły optyczne realizujące te sposoby
US8817015B2 (en) 2010-03-03 2014-08-26 Adobe Systems Incorporated Methods, apparatus, and computer-readable storage media for depth-based rendering of focused plenoptic camera data
US8358366B1 (en) 2010-05-28 2013-01-22 Adobe Systems Incorporate Methods and apparatus for high-speed digital imaging
US8665341B2 (en) 2010-08-27 2014-03-04 Adobe Systems Incorporated Methods and apparatus for rendering output images with simulated artistic effects from focused plenoptic camera data
US8749694B2 (en) 2010-08-27 2014-06-10 Adobe Systems Incorporated Methods and apparatus for rendering focused plenoptic camera data using super-resolved demosaicing
US8724000B2 (en) 2010-08-27 2014-05-13 Adobe Systems Incorporated Methods and apparatus for super-resolution in integral photography
US8803918B2 (en) 2010-08-27 2014-08-12 Adobe Systems Incorporated Methods and apparatus for calibrating focused plenoptic camera data
US9197798B2 (en) 2011-03-25 2015-11-24 Adobe Systems Incorporated Thin plenoptic cameras using microspheres
CN203012335U (zh) * 2012-11-30 2013-06-19 神画科技（深圳）有限公司 自动调焦的投影***
WO2014101018A1 (zh) * 2012-12-26 2014-07-03 神画科技（深圳）有限公司 带红外光源的投影***
WO2014209352A1 (en) 2013-06-28 2014-12-31 Thomson Licensing Highlighting an object displayed by a pico projector
US9538075B2 (en) 2013-12-30 2017-01-03 Indiana University Research And Technology Corporation Frequency domain processing techniques for plenoptic images
US10073567B2 (en) * 2014-05-23 2018-09-11 Piqs Technology (Shenzhen) Limited Interactive display systems
EP3185747A1 (de) 2014-08-31 2017-07-05 Berestka, John Systeme und verfahren zur analyse des auges

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US3469925A (en) * 1966-03-25 1969-09-30 Eastman Kodak Co Method for determining image sharpness
US3620613A (en) * 1968-05-10 1971-11-16 Fuji Photo Film Co Ltd Automatic focusing device for projectors
US3672757A (en) * 1970-09-14 1972-06-27 Gaf Corp Automatic focusing system for projectors and the like
EP0266184B1 (de) * 1986-10-31 1995-04-12 Seiko Epson Corporation Anzeigevorrichtung vom Projektionstyp
NL8801348A (nl) * 1988-05-26 1989-12-18 Philips Nv Belichtingsstelsel.
NL8901077A (nl) * 1989-04-28 1990-11-16 Koninkl Philips Electronics Nv Optische belichtingsstelsel en projectie-apparaat voorzien van een dergelijk stelsel.
JPH03141336A (ja) * 1989-10-27 1991-06-17 Canon Inc 投射型表示装置
JPH03149538A (ja) * 1989-11-07 1991-06-26 Seiko Epson Corp 投写型表示装置
US5276523A (en) * 1990-03-08 1994-01-04 Canon Kabushiki Kaisha Liquid crystal television projector with automatic focus
NL9001610A (nl) * 1990-07-16 1992-02-17 Philips Nv Beeldprojektie-inrichting.

Also Published As

Publication number Publication date
US5400093A (en) 1995-03-21
JPH06284362A (ja) 1994-10-07
DE69315315T2 (de) 1998-04-30

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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: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: VOLMER, G., DIPL.-ING., PAT.-ANW., 52066 AACHEN

8339 Ceased/non-payment of the annual fee