KR970032036A - Correction amount generator of projection type projector - Google Patents
Correction amount generator of projection type projector Download PDFInfo
- Publication number
- KR970032036A KR970032036A KR1019950044564A KR19950044564A KR970032036A KR 970032036 A KR970032036 A KR 970032036A KR 1019950044564 A KR1019950044564 A KR 1019950044564A KR 19950044564 A KR19950044564 A KR 19950044564A KR 970032036 A KR970032036 A KR 970032036A
- Authority
- KR
- South Korea
- Prior art keywords
- screen
- correction amount
- screen pattern
- correction
- picked
- Prior art date
Links
Classifications
-
- 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]
- H04N9/3191—Testing thereof
- H04N9/3194—Testing thereof including sensor feedback
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
- G02B21/10—Condensers affording dark-field illumination
-
- 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]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
본 발명은 투사형 프로젝터의 보정량생성장치에 관한 것으로, 해당의 프로젝터(10)에 설치되어 상기 스크린상에 투사되는 화면을 촬상하는 비디오카메라 또는 CCD소자에 의한 촬상장치(16)와, 그 촬상장치(16)에서 촬상된 화상을 전체의 화면패턴으로 형성하는 화면패턴형성부(18), 상기 촬상된 화면패턴과 기준화면패턴메모리에 격납된 정형의 화면패턴을 비교하여 보정량을 산출하는 보정량생성부(20), 그 보정량을 2진데이타로 변환하여 비대칭화면 보정수단(26)에 의해 상기 보정량에 기초하는 비대칭화면의 보정이 수행되도록 하는 보정량데이타변환부(24)를 포함하여 구성되어, 스크린상에 투사되는 화상을 촬상장치(16)에서 촬상하여 그 촬상된 화면패턴을 기준화면패턴과 비교해서 보정량을 자동으로 생성하도록 된 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a correction amount generating device of a projection type projector, comprising: an imaging device (16) by a video camera or CCD element mounted on a corresponding projector (10) for imaging a screen projected on the screen; A screen pattern forming unit 18 for forming the image picked up in 16 into an entire screen pattern, and a correction amount generating unit for comparing the picked-up screen pattern with a standard screen pattern stored in the reference screen pattern memory to calculate a correction amount ( 20) and a correction amount data converting section 24 for converting the correction amount into binary data so that correction of the asymmetrical screen based on the correction amount is performed by the asymmetrical screen correction means 26. The image to be projected is picked up by the imaging device 16, and the picked-up screen pattern is compared with the reference screen pattern to automatically generate a correction amount.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제 1도는 본 발명이 적용되는 투사형 프로젝터를 설명하는 도면1 is a diagram for explaining a projection type projector to which the present invention is applied.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950044564A KR100188193B1 (en) | 1995-11-29 | 1995-11-29 | Automatic distorted picture ratio control apparatus for projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950044564A KR100188193B1 (en) | 1995-11-29 | 1995-11-29 | Automatic distorted picture ratio control apparatus for projector |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970032036A true KR970032036A (en) | 1997-06-26 |
KR100188193B1 KR100188193B1 (en) | 1999-06-01 |
Family
ID=19436312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950044564A KR100188193B1 (en) | 1995-11-29 | 1995-11-29 | Automatic distorted picture ratio control apparatus for projector |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100188193B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8107018B2 (en) | 2006-08-11 | 2012-01-31 | Samsung Electronics Co., Ltd. | Apparatus and method for providing image-correction function in projector |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100849309B1 (en) | 2005-12-29 | 2008-07-29 | 삼성전자주식회사 | Method and apparatus for adjusting projecting screen in projector |
KR20210074608A (en) | 2019-12-12 | 2021-06-22 | 주식회사 케이세이프티 | Mask length adjustable and manufacturing method thereof |
KR20220091136A (en) | 2020-12-23 | 2022-06-30 | 주식회사 두지 | Mask with strap separation structure |
KR20220111474A (en) | 2021-02-02 | 2022-08-09 | 주식회사 두지 | Mask with strap separation structure |
KR20220114938A (en) | 2021-02-09 | 2022-08-17 | 조현태 | Mask with strap separation and connection structure |
-
1995
- 1995-11-29 KR KR1019950044564A patent/KR100188193B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8107018B2 (en) | 2006-08-11 | 2012-01-31 | Samsung Electronics Co., Ltd. | Apparatus and method for providing image-correction function in projector |
Also Published As
Publication number | Publication date |
---|---|
KR100188193B1 (en) | 1999-06-01 |
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A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20070103 Year of fee payment: 9 |
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LAPS | Lapse due to unpaid annual fee |