WO2009057522A1 - Scan type projection device - Google Patents

Scan type projection device Download PDF

Info

Publication number
WO2009057522A1
WO2009057522A1 PCT/JP2008/069319 JP2008069319W WO2009057522A1 WO 2009057522 A1 WO2009057522 A1 WO 2009057522A1 JP 2008069319 W JP2008069319 W JP 2008069319W WO 2009057522 A1 WO2009057522 A1 WO 2009057522A1
Authority
WO
WIPO (PCT)
Prior art keywords
scan type
projection device
optical system
correct
screen
Prior art date
Application number
PCT/JP2008/069319
Other languages
French (fr)
Japanese (ja)
Inventor
Keiko Yamada
Original Assignee
Konica Minolta Opto, Inc.
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 Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Priority to JP2009539036A priority Critical patent/JPWO2009057522A1/en
Publication of WO2009057522A1 publication Critical patent/WO2009057522A1/en

Links

Classifications

    • 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
    • G03B21/28—Reflectors in projection beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G02B26/0858—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting means being moved or deformed by piezoelectric means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/082—Catadioptric systems using three curved mirrors
    • G02B17/0832—Catadioptric systems using three curved mirrors off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry, e.g. at least one of the mirrors is warped, tilted or decentered with respect to the other elements

Abstract

In a scan type projection device (PJ), light emitted from a light source (1) is two-dimensionally deflected by a deflection element (3) and obliquely projected via a projection optical system (7) onto a screen (SC). The projection optical system (7) has a plurality of reflection surfaces (S5, S8) and a refraction surface (S6). By appropriately setting the surface shape of each of the optical surfaces of the projection optical system (7), the reflection surface (S8) arranged nearest to the screen (SC) can have the function to correct a trapezoid distortion and the refraction surface (S6) can have the function to correct an image surface warp. Thus, it is possible to reduce the entire size of the scan type projection device (PJ) which performs oblique projection and to preferably correct both of the trapezoid distortion and the image surface warp, thereby forming a preferable image on the entire screen.
PCT/JP2008/069319 2007-10-30 2008-10-24 Scan type projection device WO2009057522A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009539036A JPWO2009057522A1 (en) 2007-10-30 2008-10-24 Scanning projector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007281816 2007-10-30
JP2007-281816 2007-10-30

Publications (1)

Publication Number Publication Date
WO2009057522A1 true WO2009057522A1 (en) 2009-05-07

Family

ID=40590913

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069319 WO2009057522A1 (en) 2007-10-30 2008-10-24 Scan type projection device

Country Status (2)

Country Link
JP (1) JPWO2009057522A1 (en)
WO (1) WO2009057522A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011037259A1 (en) * 2009-09-28 2011-03-31 京セラ株式会社 Image projection apparatus
WO2012176235A1 (en) * 2011-06-22 2012-12-27 日立コンシューマエレクトロニクス株式会社 Image display device
WO2023084840A1 (en) * 2021-11-12 2023-05-19 パナソニックＩｐマネジメント株式会社 Optical system, image projection device, and imaging device
WO2023229742A1 (en) * 2022-05-26 2023-11-30 Microsoft Technology Licensing, Llc Piezoelectrically-actuated resonant scanning mirror

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6459226A (en) * 1987-08-31 1989-03-06 Mitsubishi Rayon Co Projection type projector
JP2003075767A (en) * 2001-09-04 2003-03-12 Canon Inc Projection optical system, image projection device, optical system and optical equipment
JP2004077549A (en) * 2002-08-09 2004-03-11 Canon Inc Scanning display optical system, scanning image display apparatus, and scanning image display system
JP2005234157A (en) * 2004-02-19 2005-09-02 Canon Inc Two dimensional scanner and scanning type image display device using the scanner
JP2006178346A (en) * 2004-12-24 2006-07-06 Canon Inc Optical scanner and picture display apparatus using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6459226A (en) * 1987-08-31 1989-03-06 Mitsubishi Rayon Co Projection type projector
JP2003075767A (en) * 2001-09-04 2003-03-12 Canon Inc Projection optical system, image projection device, optical system and optical equipment
JP2004077549A (en) * 2002-08-09 2004-03-11 Canon Inc Scanning display optical system, scanning image display apparatus, and scanning image display system
JP2005234157A (en) * 2004-02-19 2005-09-02 Canon Inc Two dimensional scanner and scanning type image display device using the scanner
JP2006178346A (en) * 2004-12-24 2006-07-06 Canon Inc Optical scanner and picture display apparatus using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011037259A1 (en) * 2009-09-28 2011-03-31 京セラ株式会社 Image projection apparatus
JP2011070135A (en) * 2009-09-28 2011-04-07 Kyocera Corp Image projection device
US8876300B2 (en) 2009-09-28 2014-11-04 Kyocera Corporation Image projecting apparatus having function of changing light emission direction for emitting obliquely inclined light
WO2012176235A1 (en) * 2011-06-22 2012-12-27 日立コンシューマエレクトロニクス株式会社 Image display device
JPWO2012176235A1 (en) * 2011-06-22 2015-02-23 日立コンシューマエレクトロニクス株式会社 Image display device
US9116349B2 (en) 2011-06-22 2015-08-25 Hitachi Maxell, Ltd. Image display device
WO2023084840A1 (en) * 2021-11-12 2023-05-19 パナソニックＩｐマネジメント株式会社 Optical system, image projection device, and imaging device
WO2023229742A1 (en) * 2022-05-26 2023-11-30 Microsoft Technology Licensing, Llc Piezoelectrically-actuated resonant scanning mirror

Also Published As

Publication number Publication date
JPWO2009057522A1 (en) 2011-03-10

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