WO2012127323A3 - Projection lens apparatus - Google Patents

Projection lens apparatus Download PDF

Info

Publication number
WO2012127323A3
WO2012127323A3 PCT/IB2012/000699 IB2012000699W WO2012127323A3 WO 2012127323 A3 WO2012127323 A3 WO 2012127323A3 IB 2012000699 W IB2012000699 W IB 2012000699W WO 2012127323 A3 WO2012127323 A3 WO 2012127323A3
Authority
WO
WIPO (PCT)
Prior art keywords
lens
lens group
screen
positive power
group
Prior art date
Application number
PCT/IB2012/000699
Other languages
French (fr)
Other versions
WO2012127323A2 (en
Inventor
Dongha Kim
Mankyum Kim
Byeongsoo Son
Original Assignee
Scram Technologies Asia Limited
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 Scram Technologies Asia Limited filed Critical Scram Technologies Asia Limited
Publication of WO2012127323A2 publication Critical patent/WO2012127323A2/en
Publication of WO2012127323A3 publication Critical patent/WO2012127323A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • 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
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

A projection lens apparatus for enlarging an image of a pixelized panel on a screen includes a first lens group, a second lens group, and a third lens group. The first lens group has a positive power and includes a telecentric lens for telecentrically adjusting a beam emitting from the panel, and an achromatic lens for calibrating a chromatic aberration of the beam which has passed through the telecentric lens. The second lens group has a positive power and includes an aperture stop for adjusting an amount of beams introduced from the first lens group, a first lens having a convex lens shape to have a positive power and configured to adjust power of the beam introduced through the aperture stop, and a second lens having a meniscus shape concavely curved toward the screen to reduce a size of the beam introduced from the first lens. The third lens group calibrates a distortion of the beam introduced from the second lens group, using a non-spherical lens having a meniscus shape convexly curved toward the screen so as to have a negative power.
PCT/IB2012/000699 2011-03-24 2012-03-20 Projection lens apparatus WO2012127323A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0026111 2011-03-24
KR1020110026111A KR101193518B1 (en) 2011-03-24 2011-03-24 Projection Lens

Publications (2)

Publication Number Publication Date
WO2012127323A2 WO2012127323A2 (en) 2012-09-27
WO2012127323A3 true WO2012127323A3 (en) 2013-01-17

Family

ID=46879822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/000699 WO2012127323A2 (en) 2011-03-24 2012-03-20 Projection lens apparatus

Country Status (2)

Country Link
KR (1) KR101193518B1 (en)
WO (1) WO2012127323A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104456430B (en) * 2014-12-22 2017-07-07 四川九洲视讯科技有限责任公司 A kind of lens combination for light path adjustment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914818A (en) * 1996-11-29 1999-06-22 Texas Instruments Incorporated Offset projection lens for use with reflective spatial light modulators
JP2005164839A (en) * 2003-12-01 2005-06-23 Canon Inc Lens system and image projecting device having the same
JP2008158198A (en) * 2006-12-22 2008-07-10 Olympus Imaging Corp Image formation optical system and imaging apparatus using the same
JP2011053508A (en) * 2009-09-03 2011-03-17 Fujifilm Corp Projection type variable focus lens and projection type display device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563650B2 (en) 2001-01-17 2003-05-13 3M Innovative Properties Company Compact, telecentric projection lenses for use with pixelized panels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914818A (en) * 1996-11-29 1999-06-22 Texas Instruments Incorporated Offset projection lens for use with reflective spatial light modulators
JP2005164839A (en) * 2003-12-01 2005-06-23 Canon Inc Lens system and image projecting device having the same
JP2008158198A (en) * 2006-12-22 2008-07-10 Olympus Imaging Corp Image formation optical system and imaging apparatus using the same
JP2011053508A (en) * 2009-09-03 2011-03-17 Fujifilm Corp Projection type variable focus lens and projection type display device

Also Published As

Publication number Publication date
WO2012127323A2 (en) 2012-09-27
KR20120109002A (en) 2012-10-08
KR101193518B1 (en) 2012-10-22

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