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 PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- temperature
- image projection
- medium layer
- lens
- change
- Prior art date
Links
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
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)
- Transforming Electric Information Into Light Information (AREA)
- Lenses (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
내용 없음.
Description
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)
- 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.
- 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.
- 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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP85-1058774 | 1983-06-15 | ||
JP58105874A JPS59232314A (ja) | 1983-06-15 | 1983-06-15 | 温度補償付画像投写装置 |
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)
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)
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 |
-
1983
- 1983-06-15 JP JP58105874A patent/JPS59232314A/ja active Granted
-
1984
- 1984-06-08 KR KR8403193A patent/KR870001868B1/ko not_active IP Right Cessation
- 1984-06-15 US US06/620,930 patent/US4609945A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0521211B2 (ko) | 1993-03-23 |
KR870001868B1 (en) | 1987-10-17 |
US4609945A (en) | 1986-09-02 |
JPS59232314A (ja) | 1984-12-27 |
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E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20031006 Year of fee payment: 17 |
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EXPY | Expiration of term |