CN1098464C - 具有大的后焦距与焦距之比的投影透镜 - Google Patents

具有大的后焦距与焦距之比的投影透镜 Download PDF

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Publication number
CN1098464C
CN1098464C CN97105524A CN97105524A CN1098464C CN 1098464 C CN1098464 C CN 1098464C CN 97105524 A CN97105524 A CN 97105524A CN 97105524 A CN97105524 A CN 97105524A CN 1098464 C CN1098464 C CN 1098464C
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China
Prior art keywords
lens
projection lens
bfl
image
lens unit
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Expired - Fee Related
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CN97105524A
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Chinese (zh)
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CN1180841A (zh
Inventor
梅尔文·H·克赖泽尔
雅各布·莫斯科维奇
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3M Innovative Properties Co
3M Precision Optics Inc
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US Precision Lens Inc
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
CN97105524A 1996-05-24 1997-05-26 具有大的后焦距与焦距之比的投影透镜 Expired - Fee Related CN1098464C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1832596P 1996-05-24 1996-05-24
US60/018325 1996-05-24
US60/018,325 1996-05-24

Publications (2)

Publication Number Publication Date
CN1180841A CN1180841A (zh) 1998-05-06
CN1098464C true CN1098464C (zh) 2003-01-08

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CN97105524A Expired - Fee Related CN1098464C (zh) 1996-05-24 1997-05-26 具有大的后焦距与焦距之比的投影透镜

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US (2) US5870228A (enExample)
EP (1) EP0809407B1 (enExample)
JP (1) JPH10142503A (enExample)
KR (1) KR100465099B1 (enExample)
CN (1) CN1098464C (enExample)
DE (1) DE69723772T2 (enExample)
TW (1) TW328114B (enExample)

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US6317171B1 (en) * 1997-10-21 2001-11-13 Texas Instruments Incorporated Rear-screen projection television with spatial light modulator and positionable anamorphic lens
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US6853493B2 (en) 2003-01-07 2005-02-08 3M Innovative Properties Company Folded, telecentric projection lenses for use with pixelized panels
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US7438423B2 (en) * 2005-08-29 2008-10-21 3M Innovative Properties Company Illumination system and projection system incorporating same
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Also Published As

Publication number Publication date
CN1180841A (zh) 1998-05-06
US5870228A (en) 1999-02-09
TW328114B (en) 1998-03-11
KR970075961A (ko) 1997-12-10
DE69723772T2 (de) 2004-06-03
JPH10142503A (ja) 1998-05-29
EP0809407B1 (en) 2003-07-30
DE69723772D1 (de) 2003-09-04
EP0809407A1 (en) 1997-11-26
KR100465099B1 (ko) 2005-06-17
US5969876A (en) 1999-10-19

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