KR970032036A - Correction amount generator of projection type projector - Google Patents

Correction amount generator of projection type projector Download PDF

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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
Application number
KR1019950044564A
Other languages
Korean (ko)
Other versions
KR100188193B1 (en
Inventor
우성재
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950044564A priority Critical patent/KR100188193B1/en
Publication of KR970032036A publication Critical patent/KR970032036A/en
Application granted granted Critical
Publication of KR100188193B1 publication Critical patent/KR100188193B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191Testing thereof
    • H04N9/3194Testing thereof including sensor feedback
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/06Means for illuminating specimens
    • G02B21/08Condensers
    • G02B21/10Condensers affording dark-field illumination
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179Video signal processing therefor
    • H04N9/3182Colour adjustment, e.g. white balance, shading or gamut

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  • 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

투사형 프로젝터의 보정량생성장치Correction amount generator of projection type projector

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)

투사렌즈(12)의 투사각에 근거하여 스크린상에 화상을 투사하여 재생하는 투사형 프로젝터에 있어서, 해당의 프로젝터(10)에 설치되어 상기 스크린상에 투사되는 화면을 촬상하는 촬상수단(16)과, 그 촬상수단(16)에서 촬상된 화상을 전체의 화면패턴으로 형성하는 화면패턴형성수단(18), 상기 촬상된 화면패턴과 기준화면패턴메모리내에 격납된 정형의 화면패턴을 비교하여 보정량을 산출하는 보정량생성수단(20), 그 보정량을 2진데이타로 변환하여 비대칭화면보정수단(26)에 의해 상기 보정량에 기초하는 비대칭화면의 보정이 수행되도록 하는 보정량데이타변환수단(24)를 포함하여 구성된 것을 특징으로 하는 투사형 프로젝터의 보정량생성장치.A projection type projector for projecting and reproducing an image on a screen based on the projection angle of the projection lens (12), comprising: imaging means (16) mounted on a corresponding projector (10) for imaging a screen projected on the screen; A screen pattern forming means (18) for forming an image picked up by the imaging means (16) into a whole screen pattern, and comparing the picked up screen pattern with a standard screen pattern stored in a reference screen pattern memory to calculate a correction amount. A correction amount generating means 20 and correction amount data converting means 24 for converting the correction amount into binary data so that the asymmetrical screen correction means 26 performs correction of the asymmetrical screen based on the correction amount. A correction amount generating device for a projection projector. 제 1항에 있어서, 상기 촬상수단(26)은 상기 스크린에 투사된 화상의 화면 전체를 촬상하는 비디오카메라 또는 CCD(Charge coupled device)가 채용되는 것을 특징으로 하는 투사형 프로젝터의 보정량생성장치.The apparatus according to claim 1, wherein the imaging means (26) employs a video camera or a charge coupled device (CCD) for capturing the entire screen of the image projected on the screen. 제 1항에 있어서, 상기 기준화면패턴은 상기 투사렌즈(12)에서 스크린상에 수평적으로 투사되는 경우의 화면이 패턴화되어 설정되는 것을 특징으로 하는 투사형 프로젝터의 보정량생성장치.The apparatus of claim 1, wherein the reference screen pattern is set by patterning the screen when the projection lens (12) is projected horizontally on the screen. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950044564A 1995-11-29 1995-11-29 Automatic distorted picture ratio control apparatus for projector KR100188193B1 (en)

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

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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

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KR (1) KR100188193B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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