FR2350624A1 - Lecteur de microfilms - Google Patents

Lecteur de microfilms

Info

Publication number
FR2350624A1
FR2350624A1 FR7713280A FR7713280A FR2350624A1 FR 2350624 A1 FR2350624 A1 FR 2350624A1 FR 7713280 A FR7713280 A FR 7713280A FR 7713280 A FR7713280 A FR 7713280A FR 2350624 A1 FR2350624 A1 FR 2350624A1
Authority
FR
France
Prior art keywords
microfilms
player
microfilms player
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
FR7713280A
Other languages
English (en)
Other versions
FR2350624B1 (fr
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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
Priority claimed from US05/682,304 external-priority patent/US4072411A/en
Priority claimed from US05/682,305 external-priority patent/US4125319A/en
Priority claimed from US05/682,303 external-priority patent/US4057337A/en
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of FR2350624A1 publication Critical patent/FR2350624A1/fr
Application granted granted Critical
Publication of FR2350624B1 publication Critical patent/FR2350624B1/fr
Granted 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 
    • G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G02F1/172—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • G02B26/026—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light based on the rotation of particles under the influence of an external field, e.g. gyricons, twisting ball displays
    • 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 
    • G02F1/0128—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 electro-mechanical, magneto-mechanical, elasto-optic effects
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)
FR7713280A 1976-05-03 1977-05-03 Lecteur de microfilms Granted FR2350624A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/682,304 US4072411A (en) 1976-05-03 1976-05-03 Display device having image sense reversal capability
US05/682,305 US4125319A (en) 1976-05-03 1976-05-03 Active light control device
US05/682,303 US4057337A (en) 1976-05-03 1976-05-03 Compact viewer

Publications (2)

Publication Number Publication Date
FR2350624A1 true FR2350624A1 (fr) 1977-12-02
FR2350624B1 FR2350624B1 (fr) 1979-07-13

Family

ID=27418400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713280A Granted FR2350624A1 (fr) 1976-05-03 1977-05-03 Lecteur de microfilms

Country Status (3)

Country Link
DE (1) DE2719483A1 (fr)
FR (1) FR2350624A1 (fr)
GB (1) GB1581575A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2827052A1 (fr) * 2001-07-06 2003-01-10 Centre Nat Rech Scient Dispositif electro-optique perfectionne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4428873A (en) * 1980-08-30 1984-01-31 Kureha Kagaku Kogyo Kabushiki Kaisha Electrooptical element
US4657349A (en) * 1984-08-14 1987-04-14 Temple University Electro- and magneto-optic devices
JPH0344621A (ja) * 1989-07-12 1991-02-26 Alps Electric Co Ltd 表示方法及び装置並びにこれに用いる表示媒体

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RESEARCH DISCLOSURE, NO. 155, MARCH 1977, HAVANT HANTS UK L.F. FRANK ET AL: "IMPROVED LIGHT CONTROL AND DISPLAY DEVICES", PAGES 64 A 71) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2827052A1 (fr) * 2001-07-06 2003-01-10 Centre Nat Rech Scient Dispositif electro-optique perfectionne

Also Published As

Publication number Publication date
GB1581575A (en) 1980-12-17
DE2719483A1 (de) 1977-11-24
FR2350624B1 (fr) 1979-07-13

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Legal Events

Date Code Title Description
ST Notification of lapse