KR850006825A - 투사형 시스템 - Google Patents

투사형 시스템 Download PDF

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Publication number
KR850006825A
KR850006825A KR1019850001686A KR850001686A KR850006825A KR 850006825 A KR850006825 A KR 850006825A KR 1019850001686 A KR1019850001686 A KR 1019850001686A KR 850001686 A KR850001686 A KR 850001686A KR 850006825 A KR850006825 A KR 850006825A
Authority
KR
South Korea
Prior art keywords
lens
curvature
center
screen
projective system
Prior art date
Application number
KR1019850001686A
Other languages
English (en)
Other versions
KR900008365B1 (ko
Inventor
교헤이 후구다
Original Assignee
미쓰다 가쓰시게
가부시기가이샤 히다찌 세이사꾸쇼
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 미쓰다 가쓰시게, 가부시기가이샤 히다찌 세이사꾸쇼 filed Critical 미쓰다 가쓰시게
Publication of KR850006825A publication Critical patent/KR850006825A/ko
Application granted granted Critical
Publication of KR900008365B1 publication Critical patent/KR900008365B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
    • 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
    • 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

Abstract

내용 없음

Description

투사형 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제13도는 본 발명에 관한 셋트 구성을 도시한 측면 단면도.
제14도는 본 발명의 다른 렌즈 구성의 1예를 도시한 평면도.
제15도는 제14도에 도시한 각 실시예의 MTF특성을 도시한 특성도.

Claims (1)

  1. 스크린과, 중심부에서는, 접속 작용을 행하고, 주변부에서는, 발산작용을 행하는 렌즈와, 1매 또는 2매의 렌즈로 되는 凸렌즈와, 凹렌즈와 내면에 형광체를 도포하고, 또한 렌즈 작용을 행하는 유리부를 가지며, 이 유리부 내면의 중심부의 곡율 중심이 스크린 측으로 위치하고, 유리부 내면 각부의 곡율 반경이 중심에서 주변에 가까워짐에 따라서 증대하도록 된 영상광으로 되는 것을 특징으로 하는 투사형 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850001686A 1984-03-26 1985-03-15 투사형 광학시스템 KR900008365B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59-56061 1984-03-26
JP56061 1984-03-26
JP59-56062 1984-03-26
JP59056061A JPH0711626B2 (ja) 1984-03-26 1984-03-26 投写形テレビ用レンズ

Publications (2)

Publication Number Publication Date
KR850006825A true KR850006825A (ko) 1985-10-16
KR900008365B1 KR900008365B1 (ko) 1990-11-17

Family

ID=13016563

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1019850001686A KR900008365B1 (ko) 1984-03-26 1985-03-15 투사형 광학시스템
KR1019900009297A KR910005257B1 (ko) 1984-03-26 1990-06-22 투사형 화상 표시장치

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1019900009297A KR910005257B1 (ko) 1984-03-26 1990-06-22 투사형 화상 표시장치

Country Status (2)

Country Link
JP (1) JPH0711626B2 (ko)
KR (2) KR900008365B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030078138A (ko) * 2002-03-28 2003-10-08 장두근 반사면을 이용한 영상물 시청장치

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2523106B2 (ja) * 1986-01-29 1996-08-07 株式会社日立製作所 投写形テレビ用光学系
JPH0820594B2 (ja) * 1986-05-28 1996-03-04 株式会社日立製作所 投写形テレビ用光学装置
JP2629095B2 (ja) * 1991-09-13 1997-07-09 三菱電機株式会社 投写レンズ
JP2813744B2 (ja) * 1992-06-26 1998-10-22 三菱電機株式会社 投写レンズ
JP2764778B2 (ja) * 1992-10-30 1998-06-11 株式会社日立製作所 投写形テレビ用光学系

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030078138A (ko) * 2002-03-28 2003-10-08 장두근 반사면을 이용한 영상물 시청장치

Also Published As

Publication number Publication date
JPS60200215A (ja) 1985-10-09
KR900008365B1 (ko) 1990-11-17
JPH0711626B2 (ja) 1995-02-08
KR910005257B1 (ko) 1991-07-24

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