KR940021266A - 공간 광 변조기들을 사용한 그레이 스케일 프린팅 - Google Patents

공간 광 변조기들을 사용한 그레이 스케일 프린팅 Download PDF

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Publication number
KR940021266A
KR940021266A KR1019940006206A KR19940006206A KR940021266A KR 940021266 A KR940021266 A KR 940021266A KR 1019940006206 A KR1019940006206 A KR 1019940006206A KR 19940006206 A KR19940006206 A KR 19940006206A KR 940021266 A KR940021266 A KR 940021266A
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South Korea
Prior art keywords
pulse width
width modulation
spatial light
row
area
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KR1019940006206A
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English (en)
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KR100318033B1 (ko
Inventor
벤카테스워 바드람만티
세인트 클레어 제임스
이.넬슨 윌리엄
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윌리엄 이.힐러
텍사스 인스트루먼츠 인코포레이티드
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Publication of KR940021266A publication Critical patent/KR940021266A/ko
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Publication of KR100318033B1 publication Critical patent/KR100318033B1/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Laser Beam Printer (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Image Processing (AREA)

Abstract

행정분 및 펄스폭 변조를 결합한 그레이 스케일 프린팅에 관한 것이다. 공간 광 변조기(102)는 주어진 라인 시간안에 PWM을 수행하도록 지정된 1개 라인(104)를 갖는다. 변조기(106)의 다른 영역은 보다 많은 그레이 레벨을 고려하여, 프린트 영상상의 행적분을 수행하도록 지정된 라인들을 갖는다. 부가적인 영역(108)이 조사 형상 및 프린트 영상내의 결함들을 수정하기 위해 지정될 수 있다.

Description

공간 광 변조기들을 사용한 그레이 스케일 프린팅
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 행 적분 및 수정 행 적분 영역을 갖는 이진 공간 광 변조기 표면상의 행의 펄스폭 변조를 도시한 블럭도,
제2a도 ~제2e도는 요소들의 라인안에서의 장치 표면상에 데이타 이동도를 도시한 도면,
제3도는 데이타 로드 및 재설정 스퀸스의 타이밍 다이어그램,
제4도는 노출 시간의 막대 그래프.

Claims (6)

  1. a. 공간 광 변조기의 영역 안의 행 안에서 펄스폭 변조를 수행하는 단계, 및 b. 펄스폭 변조를 수행한 상기 행을 포함하지 않는 공간 광 변조기의 적어도 한 영역안에서 행병합을 수행하며 행병합이 그레이 레벨의 정수 부분을 결정하고, 상기 펄스폭 변조가 프린트 영상에 대한 상기 그레이 레벨의 분수 부분을 결정하도록 하는 단계를 포함하는 것을 특징으로 하는 그레이 스케일 프린팅 방법.
  2. 제1항에 있어서, 상기 펄스폭 변조 영역 및 상기 행병합 영역 이외의 상기 변조기 영역의 다른 영역에서 상기 프린트 영상에 대한 수정을 행하는 단계를 더 포함하는 것을 특징으로 하는 그레이 스케일 프린팅 방법.
  3. 제1항에 있어서, 상기 펄스폭 변조가 이진 펄스폭 변조인 것을 특징으로 하는 그레이 스케일 프린팅 방법.
  4. 제1항에 있어서, 상기 펄스폭 변조가 대칭 펄스폭 변조인 것을 특징으로 하는 그레이 스케일 프린팅 방법.
  5. 그레이 스케일에 대한 펄스폭 변조 방법에 있어서, a. 공간 광 변조기의 행 안의 각 요소를 라인 시간 간격의 중심에 대해 대칭인 특정 시간 간격에 대응하는 데이타로 로딩하는 단계, 및 b. 상기 중심에 대해 대칭인 여러 시간 간격들에서 장치를 재설정하는 단계를 포함하는 것을 특징으로 하는 방법.
  6. 제5항에 있어서, 상기 공간 광 변조기가 디지탈 마이크로미러 장치인 것을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940006206A 1993-03-29 1994-03-28 공간광변조기들을사용한그레이스케일프린팅 KR100318033B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/038,391 US5461410A (en) 1993-03-29 1993-03-29 Gray scale printing using spatial light modulators
US08/038,391 1993-03-29

Publications (2)

Publication Number Publication Date
KR940021266A true KR940021266A (ko) 1994-10-17
KR100318033B1 KR100318033B1 (ko) 2002-04-06

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Country Status (8)

Country Link
US (1) US5461410A (ko)
EP (1) EP0655858B1 (ko)
JP (1) JPH07131648A (ko)
KR (1) KR100318033B1 (ko)
CN (1) CN1050724C (ko)
CA (1) CA2118729C (ko)
DE (1) DE69421894T2 (ko)
TW (1) TW267218B (ko)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6219015B1 (en) 1992-04-28 2001-04-17 The Board Of Directors Of The Leland Stanford, Junior University Method and apparatus for using an array of grating light valves to produce multicolor optical images
US5615016A (en) 1994-11-04 1997-03-25 Texas Instruments Incorporated Exposure scheme for minimizing microbanding inslm-based printers
US5630027A (en) * 1994-12-28 1997-05-13 Texas Instruments Incorporated Method and apparatus for compensating horizontal and vertical alignment errors in display systems
US5841579A (en) 1995-06-07 1998-11-24 Silicon Light Machines Flat diffraction grating light valve
KR100449129B1 (ko) * 1995-10-25 2005-01-24 인스트루먼츠 인코포레이티드 텍사스 조사시스템
US5841956A (en) * 1996-01-05 1998-11-24 Texas Instruments Incorporated Anti-aliasing for digital printing with dot shape modulation and greyscale
EP0785524A3 (en) 1996-01-05 1999-01-13 Texas Instruments Incorporated Printing with dot shape modulation and greyscale
EP0795995B1 (en) * 1996-03-14 2001-11-21 Agfa-Gevaert N.V. Halftone reproduction by single spot multibeam laser recording
JPH09314910A (ja) * 1996-05-30 1997-12-09 Fuji Photo Film Co Ltd カラープリンタ
JPH09318892A (ja) 1996-05-30 1997-12-12 Fuji Photo Film Co Ltd プリンタ及び露光方法
US5982553A (en) 1997-03-20 1999-11-09 Silicon Light Machines Display device incorporating one-dimensional grating light-valve array
US6088102A (en) 1997-10-31 2000-07-11 Silicon Light Machines Display apparatus including grating light-valve array and interferometric optical system
EP0933925A3 (en) * 1997-12-31 2002-06-26 Texas Instruments Inc. Photofinishing utilizing modulated light source array
US6271808B1 (en) 1998-06-05 2001-08-07 Silicon Light Machines Stereo head mounted display using a single display device
US6130770A (en) 1998-06-23 2000-10-10 Silicon Light Machines Electron gun activated grating light valve
US6101036A (en) 1998-06-23 2000-08-08 Silicon Light Machines Embossed diffraction grating alone and in combination with changeable image display
US6215579B1 (en) 1998-06-24 2001-04-10 Silicon Light Machines Method and apparatus for modulating an incident light beam for forming a two-dimensional image
US6303986B1 (en) 1998-07-29 2001-10-16 Silicon Light Machines Method of and apparatus for sealing an hermetic lid to a semiconductor die
EP0997841A3 (en) 1998-10-30 2004-01-02 Texas Instruments Incorporated High resolution digital printing with spatial light modulation
US6215547B1 (en) * 1998-11-19 2001-04-10 Eastman Kodak Company Reflective liquid crystal modulator based printing system
US6456421B1 (en) * 1999-09-01 2002-09-24 Polaroid Corporation System for printing with programmable spatial light modulator and method
US6330018B1 (en) 1999-12-22 2001-12-11 Eastman Kodak Company Method and apparatus for printing high resolution images using reflective LCD modulators
US6396530B1 (en) 2000-06-12 2002-05-28 Eastman Kodak Company Method for improving exposure resolution using multiple exposures
US6407766B1 (en) 2000-07-18 2002-06-18 Eastman Kodak Company Method and apparatus for printing to a photosensitive media using multiple spatial light modulators
US6646716B1 (en) 2000-07-27 2003-11-11 Eastman Kodak Company Method and apparatus for printing multiple simultaneous images onto a photosensitive media
US6614462B1 (en) 2000-10-19 2003-09-02 Eastman Kodak Company Method and apparatus for printing high resolution images using reflective LCD modulators
US6930797B2 (en) * 2001-02-27 2005-08-16 Eastman Kodak Company Method and apparatus for printing high resolution images using multiple reflective spatial light modulators
US6707591B2 (en) 2001-04-10 2004-03-16 Silicon Light Machines Angled illumination for a single order light modulator based projection system
US6747781B2 (en) 2001-06-25 2004-06-08 Silicon Light Machines, Inc. Method, apparatus, and diffuser for reducing laser speckle
US6782205B2 (en) 2001-06-25 2004-08-24 Silicon Light Machines Method and apparatus for dynamic equalization in wavelength division multiplexing
US6829092B2 (en) 2001-08-15 2004-12-07 Silicon Light Machines, Inc. Blazed grating light valve
US6980321B2 (en) * 2001-08-20 2005-12-27 Eastman Kodak Company Method and apparatus for printing high resolution images using multiple reflective spatial light modulators
US6800238B1 (en) 2002-01-15 2004-10-05 Silicon Light Machines, Inc. Method for domain patterning in low coercive field ferroelectrics
US6767751B2 (en) 2002-05-28 2004-07-27 Silicon Light Machines, Inc. Integrated driver process flow
US6728023B1 (en) 2002-05-28 2004-04-27 Silicon Light Machines Optical device arrays with optimized image resolution
US6822797B1 (en) 2002-05-31 2004-11-23 Silicon Light Machines, Inc. Light modulator structure for producing high-contrast operation using zero-order light
US6829258B1 (en) 2002-06-26 2004-12-07 Silicon Light Machines, Inc. Rapidly tunable external cavity laser
US6813059B2 (en) 2002-06-28 2004-11-02 Silicon Light Machines, Inc. Reduced formation of asperities in contact micro-structures
US6801354B1 (en) 2002-08-20 2004-10-05 Silicon Light Machines, Inc. 2-D diffraction grating for substantially eliminating polarization dependent losses
US6734889B2 (en) 2002-09-10 2004-05-11 Eastman Kodak Company Color printer comprising a linear grating spatial light modulator
US6712480B1 (en) 2002-09-27 2004-03-30 Silicon Light Machines Controlled curvature of stressed micro-structures
US6917462B2 (en) * 2003-02-24 2005-07-12 Eastman Kodak Company Method and apparatus for translating a spatial light modulator to provide dithering
US6806997B1 (en) 2003-02-28 2004-10-19 Silicon Light Machines, Inc. Patterned diffractive light modulator ribbon for PDL reduction
US6829077B1 (en) 2003-02-28 2004-12-07 Silicon Light Machines, Inc. Diffractive light modulator with dynamically rotatable diffraction plane
US8519937B2 (en) * 2005-03-31 2013-08-27 Intel Corporation Digitally modulated image projection system
US8451427B2 (en) 2007-09-14 2013-05-28 Nikon Corporation Illumination optical system, exposure apparatus, optical element and manufacturing method thereof, and device manufacturing method
US20090091730A1 (en) * 2007-10-03 2009-04-09 Nikon Corporation Spatial light modulation unit, illumination apparatus, exposure apparatus, and device manufacturing method
JP5267029B2 (ja) 2007-10-12 2013-08-21 株式会社ニコン 照明光学装置、露光装置及びデバイスの製造方法
KR101562073B1 (ko) * 2007-10-16 2015-10-21 가부시키가이샤 니콘 조명 광학 시스템, 노광 장치 및 디바이스 제조 방법
KR101546987B1 (ko) * 2007-10-16 2015-08-24 가부시키가이샤 니콘 조명 광학 시스템, 노광 장치 및 디바이스 제조 방법
US8379187B2 (en) 2007-10-24 2013-02-19 Nikon Corporation Optical unit, illumination optical apparatus, exposure apparatus, and device manufacturing method
US9116346B2 (en) * 2007-11-06 2015-08-25 Nikon Corporation Illumination apparatus, illumination method, exposure apparatus, and device manufacturing method
WO2009145048A1 (ja) 2008-05-28 2009-12-03 株式会社ニコン 空間光変調器の検査装置および検査方法、照明光学系、照明光学系の調整方法、露光装置、およびデバイス製造方法
WO2023230586A2 (en) * 2022-05-27 2023-11-30 Seurat Technologies, Inc. Grayscale area printing for additive manufacturing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074319A (en) * 1976-12-13 1978-02-14 Bell Telephone Laboratories, Incorporated Light emitting diode array imaging system - parallel approach
US4558328A (en) * 1982-10-26 1985-12-10 Victor Company Of Japan, Ltd. High resolution thermal ink transfer printer
JPS59163952A (ja) * 1983-03-08 1984-09-17 Canon Inc 画像処理装置
JPS6070486A (ja) * 1983-09-28 1985-04-22 株式会社日立製作所 Ｃｒｔ画像表示装置
US5061049A (en) * 1984-08-31 1991-10-29 Texas Instruments Incorporated Spatial light modulator and method
JPS6374664A (ja) * 1986-09-18 1988-04-05 Sony Corp 感熱ヘツドの駆動回路
US4750010A (en) * 1987-01-02 1988-06-07 Eastman Kodak Company Circuit for generating center pulse width modulated waveforms and non-impact printer using same
US4816846A (en) * 1987-12-17 1989-03-28 American Telephone And Telegraph Company, At&T Bell Laboratories Method and apparatus for direct color printing
DE69113150T2 (de) * 1990-06-29 1996-04-04 Texas Instruments Inc Deformierbare Spiegelvorrichtung mit aktualisiertem Raster.

Also Published As

Publication number Publication date
US5461410A (en) 1995-10-24
CN1101136A (zh) 1995-04-05
CA2118729C (en) 2003-09-16
EP0655858B1 (en) 1999-12-01
KR100318033B1 (ko) 2002-04-06
DE69421894T2 (de) 2000-06-29
JPH07131648A (ja) 1995-05-19
CN1050724C (zh) 2000-03-22
CA2118729A1 (en) 1994-09-30
EP0655858A1 (en) 1995-05-31
TW267218B (ko) 1996-01-01
DE69421894D1 (de) 2000-01-05

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