KR970010480B1 - 화상투사장치 - Google Patents
화상투사장치 Download PDFInfo
- Publication number
- KR970010480B1 KR970010480B1 KR1019940013119A KR19940013119A KR970010480B1 KR 970010480 B1 KR970010480 B1 KR 970010480B1 KR 1019940013119 A KR1019940013119 A KR 1019940013119A KR 19940013119 A KR19940013119 A KR 19940013119A KR 970010480 B1 KR970010480 B1 KR 970010480B1
- Authority
- KR
- South Korea
- Prior art keywords
- reflector
- image projection
- lamps
- screen
- projection apparatus
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
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
- 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]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
-
- 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]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3155—Modulator illumination systems for controlling the light source
-
- 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]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3164—Modulator illumination systems using multiple light sources
-
- 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
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
Abstract
Description
Claims (6)
- 빛을 방사시키기 위한 복수의 광원과, 상기 광원에서 반사된 빛을 받아 일정한 방향으로 반사시키기 위한 반사경과, 화면의 종횡비에 따라 상기 반사경의 위치를 조절하기 위한 반사경 제어부와, 상기 반사경 및 복수의 램프 동작을 제어하기 위한 마이크로 컴퓨터를 포함하여 구성된 것을 특징으로 하는 화상투사장치.
- 제1항에 있어서, 상기 광원은 반사경을 중심으로 상, 하로 배치된 두개의 램프로 구성된 것을 특징으로 하는 화상투사장치.
- 제2항에 있어서, 상기 두개의 램프는 화면 종횡비에 따라 화면 종횡비가 4 : 3이면 하나만 온되고, 상기 화면 종횡비가 16 : 9이면 모두 온되도록 구성된 것을 특징으로 하는 화상투사장치.
- 제2항에 있어서, 상기 반사경은 두개의 램프의 온/오프 상태에 따라 반사가 잘 이루어지도록 수직방향(↓↑)으로 상, 하로 이동할 수 있게 구성된 것을 특징으로 하는 화상투사장치.
- 제2항에 있어서, 상기 반사경은 일부는 고정되고, 나머지 부분은 화면의 종횡비에 따라 접거나 펼칠수 있도록 구성된 것을 특징으로 하는 화상투사장치.
- 제5항에 있어서, 상기 반사경은 상기 두개의 램프의 온/오프 상태에 따라 반사가 잘 이루어지도록 사선방향(↘↖)상, 하로 이동할 수 있게 구성된 것을 특징으로 하는 화상투사장치.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940013119A KR970010480B1 (ko) | 1994-06-10 | 1994-06-10 | 화상투사장치 |
| US08/458,680 US5669686A (en) | 1994-06-10 | 1995-06-02 | Image projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940013119A KR970010480B1 (ko) | 1994-06-10 | 1994-06-10 | 화상투사장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960003357A KR960003357A (ko) | 1996-01-26 |
| KR970010480B1 true KR970010480B1 (ko) | 1997-06-26 |
Family
ID=19385077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940013119A Expired - Fee Related KR970010480B1 (ko) | 1994-06-10 | 1994-06-10 | 화상투사장치 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5669686A (ko) |
| KR (1) | KR970010480B1 (ko) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998009113A1 (fr) * | 1996-08-26 | 1998-03-05 | Seiko Epson Corporation | Appareil et ecran de projection |
| US5860721A (en) * | 1997-06-09 | 1999-01-19 | Electrohome Limited | Optical resizing apparatus |
| JP2000171901A (ja) * | 1998-09-28 | 2000-06-23 | Matsushita Electric Ind Co Ltd | 照明光学装置および投写型表示装置 |
| JP4769369B2 (ja) * | 2000-05-29 | 2011-09-07 | キヤノン株式会社 | プロジェクション装置 |
| US6488379B2 (en) * | 2001-04-13 | 2002-12-03 | Phillips Electronics | Video projector illumination system using two lamps having complementary beams patterns |
| CN1214838C (zh) * | 2002-01-31 | 2005-08-17 | 精工爱普生株式会社 | 游戏机用显示装置和游戏机 |
| CN100523996C (zh) * | 2002-10-10 | 2009-08-05 | 松下电器产业株式会社 | 照明设备 |
| JP3693999B2 (ja) * | 2003-02-14 | 2005-09-14 | Necビューテクノロジー株式会社 | 液晶プロジェクタの液晶パネル駆動回路および駆動方法 |
| US7055962B2 (en) * | 2003-11-21 | 2006-06-06 | Dell Products L.P. | System and method for managing projector bulb life |
| KR20200000031U (ko) | 2018-06-26 | 2020-01-06 | 주식회사 한국가스기술공사 | 공기압밸브의 수동조작장치 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3158484B2 (ja) * | 1991-05-23 | 2001-04-23 | 日本電信電話株式会社 | 投射型表示装置 |
| JP3094529B2 (ja) * | 1991-08-27 | 2000-10-03 | 株式会社日立製作所 | 画像投写方式及び投写型ディスプレイ装置 |
| US5521658A (en) * | 1994-07-08 | 1996-05-28 | Donohoe; Vincent | Optical aspect ratio control for video projection |
-
1994
- 1994-06-10 KR KR1019940013119A patent/KR970010480B1/ko not_active Expired - Fee Related
-
1995
- 1995-06-02 US US08/458,680 patent/US5669686A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5669686A (en) | 1997-09-23 |
| KR960003357A (ko) | 1996-01-26 |
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