FR2388297A1 - Lecteur de microfilms - Google Patents

Lecteur de microfilms

Info

Publication number
FR2388297A1
FR2388297A1 FR7806940A FR7806940A FR2388297A1 FR 2388297 A1 FR2388297 A1 FR 2388297A1 FR 7806940 A FR7806940 A FR 7806940A FR 7806940 A FR7806940 A FR 7806940A FR 2388297 A1 FR2388297 A1 FR 2388297A1
Authority
FR
France
Prior art keywords
screen
viewing
mirror
reflected light
projection
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
FR7806940A
Other languages
English (en)
Other versions
FR2388297B3 (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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of FR2388297A1 publication Critical patent/FR2388297A1/fr
Application granted granted Critical
Publication of FR2388297B3 publication Critical patent/FR2388297B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

L'invention concerne un lecteur de microfilms. Ce lecteur comprend un dispositif d'éclairage 4 destiné à éclairer les micro-images à observer, une surface d'appui 3 qui reçoit le support de micro-images, un écran pour projection par transparence 9 un écran de projection à lumière incidente 8 et au moins un miroir 10 qui renvoie le faisceau lumineux de projection 13 sélectivement sur l'un ou l'autre desdits écrans. Application à l'observation de microfilms.
FR7806940A 1977-03-30 1978-03-10 Lecteur de microfilms Granted FR2388297A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772714166 DE2714166C2 (de) 1977-03-30 1977-03-30 Für Auflichtprojektion verwendbares Mikrofilm-Lesegerät

Publications (2)

Publication Number Publication Date
FR2388297A1 true FR2388297A1 (fr) 1978-11-17
FR2388297B3 FR2388297B3 (fr) 1980-12-12

Family

ID=6005143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806940A Granted FR2388297A1 (fr) 1977-03-30 1978-03-10 Lecteur de microfilms

Country Status (2)

Country Link
DE (1) DE2714166C2 (fr)
FR (1) FR2388297A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416541A (en) * 1994-05-16 1995-05-16 Fog; Stephen C. Folding portable overhead projector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020184A1 (de) * 1970-04-24 1971-11-04 Nat Registrier Kassen Gmbh Mikrobildlesegeraet

Also Published As

Publication number Publication date
DE2714166A1 (de) 1978-10-05
FR2388297B3 (fr) 1980-12-12
DE2714166C2 (de) 1983-07-28

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Legal Events

Date Code Title Description
ST Notification of lapse