JPS5698967A - Printer - Google Patents

Printer

Info

Publication number
JPS5698967A
JPS5698967A JP157680A JP157680A JPS5698967A JP S5698967 A JPS5698967 A JP S5698967A JP 157680 A JP157680 A JP 157680A JP 157680 A JP157680 A JP 157680A JP S5698967 A JPS5698967 A JP S5698967A
Authority
JP
Japan
Prior art keywords
liquid crystal
signal
light bulb
common electrode
section
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.)
Granted
Application number
JP157680A
Other languages
Japanese (ja)
Other versions
JPS6040609B2 (en
Inventor
Haruo Nakamura
Mitsuo Nagata
Teiji Miura
Kenji Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55001576A priority Critical patent/JPS6040609B2/en
Priority to US06/220,484 priority patent/US4386836A/en
Publication of JPS5698967A publication Critical patent/JPS5698967A/en
Publication of JPS6040609B2 publication Critical patent/JPS6040609B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • 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
    • G06K15/1238—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 simultaneously exposing more than one point
    • G06K15/1242—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 simultaneously exposing more than one point on one main scanning line
    • G06K15/1252—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 simultaneously exposing more than one point on one main scanning line using an array of light modulators, e.g. a linear array

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Facsimile Heads (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

PURPOSE:To enable to print with good quality and high speed, by alternately applying lower and higher frequency signals than the cross-over frequency in which dielectric anisotropy is zero at normal temperature, to the common electrode of a liquid crystal display element used for a liquid crystal light bulb. CONSTITUTION:The printer consists of a photo signal generating section providing the light source, liquid crystal light bulb and drive circuit, photo sensing section, development section, and print section. The liquid crystal light bulb consists of the glass substrate 11 having the common electrode 13 and transparent electrode 14, independent signal electrodes 16, and glass substrate 12 having transparent electrodes 15, and nematic construction in which the liquid crystal layer between the substrates 11 and 12 is twisted, is adopted. Further, to the common electrode 13, the signal having lower fe and higher fh frequency than the cross-over frequency fc in which the dielectric anisotropy is zero at normal temperature is alternately fed, to the signal electrode 16, the signal of opposite phase is given when fe and in-phase or opposite phase is given when fh, allowing high speed and good quality printing.
JP55001576A 1979-12-28 1980-01-10 lcd light bulb Expired JPS6040609B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55001576A JPS6040609B2 (en) 1980-01-10 1980-01-10 lcd light bulb
US06/220,484 US4386836A (en) 1979-12-28 1980-12-29 Electro-photographic printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55001576A JPS6040609B2 (en) 1980-01-10 1980-01-10 lcd light bulb

Publications (2)

Publication Number Publication Date
JPS5698967A true JPS5698967A (en) 1981-08-08
JPS6040609B2 JPS6040609B2 (en) 1985-09-11

Family

ID=11505337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55001576A Expired JPS6040609B2 (en) 1979-12-28 1980-01-10 lcd light bulb

Country Status (1)

Country Link
JP (1) JPS6040609B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176620A (en) * 1982-04-09 1983-10-17 Seiko Epson Corp Optical imaging device
US5448383A (en) * 1983-04-19 1995-09-05 Canon Kabushiki Kaisha Method of driving ferroelectric liquid crystal optical modulation device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176620A (en) * 1982-04-09 1983-10-17 Seiko Epson Corp Optical imaging device
US6091388A (en) * 1983-04-13 2000-07-18 Canon Kabushiki Kaisha Method of driving optical modulation device
US5696525A (en) * 1983-04-19 1997-12-09 Canon Kabushiki Kaisha Method of driving optical modulation device
US5565884A (en) * 1983-04-19 1996-10-15 Canon Kabushiki Kaisha Method of driving optical modulation device
US5592192A (en) * 1983-04-19 1997-01-07 Canon Kabushiki Kaisha Method of driving optical modulation device
US5621427A (en) * 1983-04-19 1997-04-15 Canon Kabushiki Kaisha Method of driving optical modulation device
US5548303A (en) * 1983-04-19 1996-08-20 Canon Kabushiki Kaisha Method of driving optical modulation device
US5696526A (en) * 1983-04-19 1997-12-09 Canon Kabushiki Kaisha Method of driving optical modulation device
US5790449A (en) * 1983-04-19 1998-08-04 Canon Kabushiki Kaisha Method of driving optical modulation device
US5825390A (en) * 1983-04-19 1998-10-20 Canon Kabushiki Kaisha Method of driving optical modulation device
US5831587A (en) * 1983-04-19 1998-11-03 Canon Kabushiki Kaisha Method of driving optical modulation device
US5841417A (en) * 1983-04-19 1998-11-24 Canon Kabushiki Kaisha Method of driving optical modulation device
US5886680A (en) * 1983-04-19 1999-03-23 Canon Kabushiki Kaisha Method of driving optical modulation device
US5448383A (en) * 1983-04-19 1995-09-05 Canon Kabushiki Kaisha Method of driving ferroelectric liquid crystal optical modulation device

Also Published As

Publication number Publication date
JPS6040609B2 (en) 1985-09-11

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