KR100465100B1 - 픽셀화된판넬을사용하는미니-줌투사렌즈 - Google Patents

픽셀화된판넬을사용하는미니-줌투사렌즈 Download PDF

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Publication number
KR100465100B1
KR100465100B1 KR1019970039083A KR19970039083A KR100465100B1 KR 100465100 B1 KR100465100 B1 KR 100465100B1 KR 1019970039083 A KR1019970039083 A KR 1019970039083A KR 19970039083 A KR19970039083 A KR 19970039083A KR 100465100 B1 KR100465100 B1 KR 100465100B1
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KR
South Korea
Prior art keywords
lens
projection lens
zoom
mini
range
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
KR1019970039083A
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English (en)
Korean (ko)
Other versions
KR19980018720A (ko
Inventor
멜빈 에이취. 크레이쳐
Original Assignee
쓰리엠 이노베이티브 프로퍼티즈 컴파니
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.)
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Publication of KR19980018720A publication Critical patent/KR19980018720A/ko
Application granted granted Critical
Publication of KR100465100B1 publication Critical patent/KR100465100B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
    • G02B15/143103—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged ++-
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
    • G02B15/143105—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +-+
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1441—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive
    • G02B15/144111—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive arranged ++-+
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1441—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive
    • G02B15/144113—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive arranged +-++
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)
KR1019970039083A 1996-08-16 1997-08-16 픽셀화된판넬을사용하는미니-줌투사렌즈 Expired - Fee Related KR100465100B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US2408396P 1996-08-16 1996-08-16
US60/024,083 1996-08-16
US3726697P 1997-01-31 1997-01-31
US60/037,265 1997-01-31
US60/037,266 1997-01-31

Publications (2)

Publication Number Publication Date
KR19980018720A KR19980018720A (ko) 1998-06-05
KR100465100B1 true KR100465100B1 (ko) 2005-06-13

Family

ID=26698017

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970039083A Expired - Fee Related KR100465100B1 (ko) 1996-08-16 1997-08-16 픽셀화된판넬을사용하는미니-줌투사렌즈

Country Status (6)

Country Link
US (2) US6023375A (https=)
EP (1) EP0825474B1 (https=)
JP (2) JPH10186232A (https=)
KR (1) KR100465100B1 (https=)
CN (2) CN1153995C (https=)
DE (1) DE69726352T2 (https=)

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US7009777B2 (en) * 2004-06-02 2006-03-07 3M Innovative Properties Company Compact projection lenses for use with large format pixelized panels
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Also Published As

Publication number Publication date
CN1153995C (zh) 2004-06-16
KR19980018720A (ko) 1998-06-05
CN1147753C (zh) 2004-04-28
DE69726352T2 (de) 2004-09-09
EP0825474A3 (en) 1998-10-28
US6023375A (en) 2000-02-08
CN1177115A (zh) 1998-03-25
JPH10186233A (ja) 1998-07-14
EP0825474A2 (en) 1998-02-25
JPH10186232A (ja) 1998-07-14
CN1186254A (zh) 1998-07-01
US5900989A (en) 1999-05-04
EP0825474B1 (en) 2003-11-26
DE69726352D1 (de) 2004-01-08

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