KR880006577A - 동적 보정식 순람표 발생방법 및 전자 사진 필름 연속 조색용 노출 조절 시스템 - Google Patents

동적 보정식 순람표 발생방법 및 전자 사진 필름 연속 조색용 노출 조절 시스템 Download PDF

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KR880006577A
KR880006577A KR870013302A KR870013302A KR880006577A KR 880006577 A KR880006577 A KR 880006577A KR 870013302 A KR870013302 A KR 870013302A KR 870013302 A KR870013302 A KR 870013302A KR 880006577 A KR880006577 A KR 880006577A
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South Korea
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image
optical density
stepped
generating
lookup table
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KR870013302A
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KR910004682B1 (ko
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랩 옌 리이 데니
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제임즈 죠오지프 플린
이 아이 듀우판 디 네모아 앤드 캄파니
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Publication of KR880006577A publication Critical patent/KR880006577A/ko
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5062—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an image on the copy material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
    • G03G15/326—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array
    • G03G15/328—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array using a CRT
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/128—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers generating or processing printable items, e.g. characters
    • 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture
    • 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture
    • H04N1/4078—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture using gradational references, e.g. grey-scale test pattern analysis

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Color Electrophotography (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

내용 없음

Description

동적 보정식 순람표 발생방법 및 전자 사진 필름 연속 조색용 노출 조절 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 다음의 단계들로 구성되는, 화상요소에 투사된 화학선 강도를 변조시키는 동적 보정식 순람표를 발생하는 방법:(a) 동적 보정식 순람표에 따라 소정 갯수의 가변 광학적 밀도 수준들을 갖는 상을 나타내는 화학선의 강도를 변조하는 단계;(b) 상기 상을 나타내는 변조된 화학선에 화상요소를 노출시키는 단계;(c) 동적 보정식 순람표를 이용해서 소정 갯수의 지지 광학적 밀도 수준들을 갖는 계단형 쐐기를 나타내는 정보로 상기 화학선의 강도를 변조하는 단계;(d)상기 계단형 쐐기정보에 의하여 상기 화학선에 상기 화상 요소를 노출시키는 단계;(e) 상기 화상요소에 상기 상과 계단형 쐐기를 현상하는 단계;(f) 현상된 계단형 쐐기의 광학적 밀도 수준들과 기지의 광학적 밀도 수준들을 비교하는 단계;(g) 현상된 계단형 쐐기의 광학적 밀도와 기지의 광학적 밀도 수준 사이의 차이에 근거한 적정 신호를 발생하는 단계; 및 (h) 상기 적정 신호에 따라 상기 순람표를 보정하는 단계.
  2. 제1항에 있어서, 단계(a)와 (c)가 동시에 수행되는 방법.
  3. 노출 보정 인자들로 된 순람표를 기억하는 수단;계단형 쐐기의 상의 실제 광학적 밀도를 측정하고 그를 표시하는 신호를 발생시키는 수단;상기 계단형 쐐기의 표시 신호화 상기 계단형 쐐기에 상응하는 기지의 광학적 밀도 수준들 세트를 비교하여 보정 값 세트를 발생시키는 수단; 및 노출 보정 인자들로 된 상기 순람표를 변경하도록 상기 보정값 세트를 인가해 줌으로써 화상 요소에 투사된 화학선의 강도를 조절하기에 유용한 노출 보정 인자들로 된 동적 보정식 순람표를 형성하는 수단;으로 구성되는 노출 조절 시스템.
  4. (a) 제1, 제2이격 위치들을 포함하는 소정 경로를 따라 화상요소를 이송하는 수단;(b) 상기 이송수단 표면 가까이에 설치되어 상기 이송수단위로 윗면이 화상면인 화상요소를 한번에 하나씩 분배하는 화상요소 분배기;(c) 상기 이송수단의 운동 방향을 따라 상기 분배기 뒤로 상기 이송수단 가까이에 설치되어 상기 화상요소 표면에 균일한 전기 전하를 설정해주는 하전수단;(d) 상기 화상 면에 정전잠상을 생성시키는 수단;(e) 상기 화상면의 정전잠상에 정전 안료를 도포하여 상기 잠상을 보이게하는 조색수단;및 (f) 상기 색상을 영구히 고착시키는 수단;으로 구성되는 연속적인 안료조색 전자사진상 생성 장치로서;(g) 상기 정전잠상 생성 수단자체가 노출 보정 인자들로 된 순람표를 기억하는 수단;계단형 쐐기의 상의 실제 광학적 밀도를 측정하여 그것을 타나내는 신호를 발생하는 수단;상기 계단형 쐐기의 표시 신호의 상기 계단형 쐐기에 상응하는 기지의 광학적 밀도수준을 세트로 비교하여 보정값 세트를 발생하는 수단; 노출보정인자들로 된 상기 순람표를 변경하도록 상기 보정값 세트를 인가해 줌으로써 화상요소에 투사된 화학선의 강도를 조절하는데 유용한 노출 보정 인자들로 된 동적 보정식 순람표를 형성하는 수단으로 구성되는, 연속적인 안료 조색 전자 사진상 생성장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870013302A 1986-11-25 1987-11-24 동적 보정식 순람표 발생방법 및 전자사진 필름 연속 조색용 노출 조절 시스템 KR910004682B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US934,802 1986-11-25
US934802 1986-11-25
US06/934,802 US4816863A (en) 1986-11-25 1986-11-25 Exposure control system for continuous tone electrophotographic film

Publications (2)

Publication Number Publication Date
KR880006577A true KR880006577A (ko) 1988-07-23
KR910004682B1 KR910004682B1 (ko) 1991-07-09

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KR1019870013302A KR910004682B1 (ko) 1986-11-25 1987-11-24 동적 보정식 순람표 발생방법 및 전자사진 필름 연속 조색용 노출 조절 시스템

Country Status (9)

Country Link
US (1) US4816863A (ko)
EP (1) EP0269033B1 (ko)
JP (1) JPS63246768A (ko)
KR (1) KR910004682B1 (ko)
AU (1) AU600321B2 (ko)
BR (1) BR8706312A (ko)
CA (1) CA1295651C (ko)
DE (1) DE3777098D1 (ko)
HK (1) HK66792A (ko)

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Also Published As

Publication number Publication date
HK66792A (en) 1992-09-11
AU8165287A (en) 1988-06-02
BR8706312A (pt) 1988-07-19
DE3777098D1 (de) 1992-04-09
EP0269033A2 (en) 1988-06-01
JPS63246768A (ja) 1988-10-13
KR910004682B1 (ko) 1991-07-09
EP0269033B1 (en) 1992-03-04
CA1295651C (en) 1992-02-11
EP0269033A3 (en) 1989-01-18
US4816863A (en) 1989-03-28
AU600321B2 (en) 1990-08-09

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