KR850000871A - 온도보상(溫度補償)장치를 가진 화상투사(畵像投寫) - Google Patents

온도보상(溫度補償)장치를 가진 화상투사(畵像投寫) Download PDF

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Publication number
KR850000871A
KR850000871A KR1019840003193A KR840003193A KR850000871A KR 850000871 A KR850000871 A KR 850000871A KR 1019840003193 A KR1019840003193 A KR 1019840003193A KR 840003193 A KR840003193 A KR 840003193A KR 850000871 A KR850000871 A KR 850000871A
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KR
South Korea
Prior art keywords
temperature
image projection
medium layer
lens
change
Prior art date
Application number
KR1019840003193A
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English (en)
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KR870001868B1 (en
Inventor
마사노리 오키이노
Original Assignee
미쓰다 가쓰시게
가부시기 가이샤 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.)
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Application filed by 미쓰다 가쓰시게, 가부시기 가이샤 히다찌 세이사꾸쇼 filed Critical 미쓰다 가쓰시게
Publication of KR850000871A publication Critical patent/KR850000871A/ko
Application granted granted Critical
Publication of KR870001868B1 publication Critical patent/KR870001868B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • H01J29/894—Arrangements combined with the vessel for the purpose of image projection on a screen
    • 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
    • H04N5/7408—Direct viewing projectors, e.g. an image displayed on a video CRT or LCD display being projected on a screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)
  • Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

내용 없음.

Description

온도보상(溫度補償)장치를 가진 화상투사(畵像投寫)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명에 있어서 채용하는 기본원리를 설명하는 도면.
제4도는 본 발명의 기본 구성을 표시하는 설명도.
제5도는 본 발명의 구체적 실시예를 표시하는 설명도.

Claims (3)

  1. 주렌즈와 음극선관 페이스 프레이트와의 사이에 그 굴절율 np가 온도 상승과 함께 저하하는 매질층이 배치되고, 관축상에서의 해당 매질층의 두께 ℓp를 변화시키는 온도 보상 장치를 갖고, 상기 주렌즈의 초점 거리의 온도에 의한 변화특성을 보상하는 온도보상 장치를 가진 화상 투사 장치.
  2. 상기 매질층의 두께 ℓp가 실질적으로 다음식을 만족하는 특허청구의 범위 제1항 기재의 화상 투사장치.
    단, T:온도 변화분, Δnp; 온도 변화분 ΔT에 따른 굴절율의 변화분, f; 주렌즈의 초점거리, K; 주렌즈가 하이브리이드 렌즈 일때, 가중의 플라스틱 렌즈의 점유하는 파우어의 전체의 파우어에 대한 비율, Δf; 온도 벼화분 ΔT에 따른 초점거리 f의 변화분, M; 투사비율.
  3. 상기 식의 좌변에 절대치가 우변의 절대치의 30%이상이 되도록 상기 매질층의 두께ℓp가 선정된 특허청구의 범위 제2항 기재의 화상 투사 장치.
    ※참고사항:최초출원 내용에 의하여 공개하는 것임.
KR8403193A 1983-06-15 1984-06-08 Video projection apparatus with temperature compensation device KR870001868B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58105874A JPS59232314A (ja) 1983-06-15 1983-06-15 温度補償付画像投写装置
JP85-1058774 1983-06-15

Publications (2)

Publication Number Publication Date
KR850000871A true KR850000871A (ko) 1985-03-09
KR870001868B1 KR870001868B1 (en) 1987-10-17

Family

ID=14419089

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8403193A KR870001868B1 (en) 1983-06-15 1984-06-08 Video projection apparatus with temperature compensation device

Country Status (3)

Country Link
US (1) US4609945A (ko)
JP (1) JPS59232314A (ko)
KR (1) KR870001868B1 (ko)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755868A (en) * 1984-02-08 1988-07-05 Tds Patent Management, Inc. High brightness projection TV system using one or more CRTs with a concave phosphor surface acting to concentrate light into a lens system
JPS61116306A (ja) * 1984-10-19 1986-06-03 Fuji Photo Film Co Ltd 結像レンズの保持装置
JPS61162014A (ja) * 1985-01-10 1986-07-22 Ricoh Co Ltd 平行レ−ザ−ビ−ム用光源装置
NL8500842A (nl) * 1985-03-22 1986-10-16 Philips Nv Projectietelevisiebeeldbuis.
US4777532A (en) * 1985-08-06 1988-10-11 Pioneer Electronic Corporation Projection apparatus for a projection television receiver
GB8608925D0 (en) * 1986-04-11 1986-05-14 Philips Nv Projection television system
JPS62277117A (ja) * 1986-05-26 1987-12-02 Jiyuujiyouha Giken Kk 濾過装置
JPS6329129U (ko) * 1986-08-09 1988-02-25
JPS63155523A (ja) * 1986-12-19 1988-06-28 Pioneer Electronic Corp ビデオプロジエクタ−用冷却装置
NL8700440A (nl) * 1987-02-23 1988-09-16 Philips Nv Optische inrichting bevattende een houder met daarin aangebracht een optisch stelsel.
US4982289A (en) * 1989-05-15 1991-01-01 Matsushita Electric Industrial Co., Ltd. Liquid cooled cathode ray tube apparatus for video projection system
US5412510A (en) * 1989-05-15 1995-05-02 Asahi Kogaku Kogyo Kabushiki Kaisha Imaging optical system for compensating change of temperature
US5196957A (en) * 1990-03-20 1993-03-23 Olive Tree Technology, Inc. Laser scanner with post-facet lens system
JPH0481801A (ja) * 1990-07-25 1992-03-16 Kuraray Co Ltd 光学用成形品
JP3193062B2 (ja) * 1990-12-26 2001-07-30 パイオニア株式会社 ３管式プロジェクションテレビ
JP3210361B2 (ja) * 1991-05-30 2001-09-17 ソニー株式会社 プロジェクター
JP2869694B2 (ja) * 1992-10-26 1999-03-10 三菱電機株式会社 投写型表示装置
JP3627252B2 (ja) * 1994-03-30 2005-03-09 ソニー株式会社 プロジェクションテレビのレンズ組立体およびプロジェクションテレビ装置
US6104554A (en) * 1999-05-06 2000-08-15 U.S. Precision Lens Projection television lens assembly
US7570386B2 (en) * 2005-09-15 2009-08-04 Lexmark International, Inc. Systems and methods that compensate for scan path errors in a multi-beam electrophotographic imaging apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405949A (en) * 1982-03-22 1983-09-20 Zenith Radio Corporation Liquid cooling in projection cathode ray tubes
US4511927A (en) * 1983-01-10 1985-04-16 National Viewtech Corp. Liquid coupling system for video projectors

Also Published As

Publication number Publication date
KR870001868B1 (en) 1987-10-17
US4609945A (en) 1986-09-02
JPH0521211B2 (ko) 1993-03-23
JPS59232314A (ja) 1984-12-27

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