ATE89082T1 - Projektionslinsensystem. - Google Patents

Projektionslinsensystem.

Info

Publication number
ATE89082T1
ATE89082T1 AT87202254T AT87202254T ATE89082T1 AT E89082 T1 ATE89082 T1 AT E89082T1 AT 87202254 T AT87202254 T AT 87202254T AT 87202254 T AT87202254 T AT 87202254T AT E89082 T1 ATE89082 T1 AT E89082T1
Authority
AT
Austria
Prior art keywords
lens system
image
facing
lens group
projection lens
Prior art date
Application number
AT87202254T
Other languages
English (en)
Inventor
Josephus Johannes Maria Braat
Original Assignee
Philips 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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of ATE89082T1 publication Critical patent/ATE89082T1/de

Links

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
    • 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
    • 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]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Transforming Electric Information Into Light Information (AREA)
AT87202254T 1986-11-24 1987-11-18 Projektionslinsensystem. ATE89082T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8602974A NL8602974A (nl) 1986-11-24 1986-11-24 Projektielenzenstelsel.
EP87202254A EP0272719B1 (de) 1986-11-24 1987-11-18 Projektionslinsensystem

Publications (1)

Publication Number Publication Date
ATE89082T1 true ATE89082T1 (de) 1993-05-15

Family

ID=19848873

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87202254T ATE89082T1 (de) 1986-11-24 1987-11-18 Projektionslinsensystem.

Country Status (8)

Country Link
US (1) US5026149A (de)
EP (1) EP0272719B1 (de)
JP (1) JPS63148219A (de)
AT (1) ATE89082T1 (de)
AU (1) AU8143587A (de)
CA (1) CA1308583C (de)
DE (1) DE3785734T2 (de)
NL (1) NL8602974A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970011873B1 (ko) * 1994-09-08 1997-07-18 대우전자 주식회사 3빔분리방식 프로젝터의 투사각조정장치
US6124979A (en) * 1997-09-10 2000-09-26 Hitachi, Ltd. Projection display apparatus and projection lens device for use therein
CN100432736C (zh) * 2005-06-02 2008-11-12 深圳市科创数字显示技术有限公司 转90度角背投影物镜
TWI545365B (zh) 2015-02-17 2016-08-11 大立光電股份有限公司 取像鏡頭組、取像裝置及電子裝置
TWI601994B (zh) 2015-12-15 2017-10-11 大立光電股份有限公司 取像用光學鏡頭組、取像裝置及電子裝置
CN105785557B (zh) * 2016-03-10 2018-05-01 浙江水晶光电科技股份有限公司 一种超短焦投影物镜
TWI613480B (zh) 2017-02-08 2018-02-01 大立光電股份有限公司 光學取像鏡片系統、取像裝置及電子裝置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2256421B1 (de) * 1973-12-28 1976-11-19 Sopelem
US4526442A (en) * 1981-01-28 1985-07-02 U.S. Precision Lens, Inc. Compact projection lens
JPS57185401A (en) * 1981-05-12 1982-11-15 Ricoh Co Ltd Image forming element
JPS6049311A (ja) * 1983-08-29 1985-03-18 Nippon Kogaku Kk <Nikon> 投影レンズ
NL8304212A (nl) * 1983-12-07 1984-10-01 Philips Nv Enkelvoudige collimatorlens met een asferisch oppervlak.
JPH0740086B2 (ja) * 1984-02-22 1995-05-01 株式会社日立製作所 投射型テレビ装置
JPS60243601A (ja) * 1984-05-18 1985-12-03 Hitachi Ltd 非球面レンズ、及びその製造方法
US4679069A (en) * 1984-07-13 1987-07-07 Nap Consumer Electronics Corp. Color picture projection system with a wavelength-selective reflector for filtering out undesired light from a monochrome picture display source
NL8500454A (nl) * 1985-02-18 1986-09-16 Philips Nv Projektielenzenstelsel.

Also Published As

Publication number Publication date
CA1308583C (en) 1992-10-13
EP0272719A1 (de) 1988-06-29
DE3785734D1 (de) 1993-06-09
JPS63148219A (ja) 1988-06-21
DE3785734T2 (de) 1993-11-11
EP0272719B1 (de) 1993-05-05
US5026149A (en) 1991-06-25
NL8602974A (nl) 1988-06-16
AU8143587A (en) 1988-05-26

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