FR2386833A1 - Dispositif pour la vision ou reproduction de radiographies ou photographies sur support transparent faisant ecran automatiquement - Google Patents

Dispositif pour la vision ou reproduction de radiographies ou photographies sur support transparent faisant ecran automatiquement

Info

Publication number
FR2386833A1
FR2386833A1 FR7809285A FR7809285A FR2386833A1 FR 2386833 A1 FR2386833 A1 FR 2386833A1 FR 7809285 A FR7809285 A FR 7809285A FR 7809285 A FR7809285 A FR 7809285A FR 2386833 A1 FR2386833 A1 FR 2386833A1
Authority
FR
France
Prior art keywords
light source
ray images
viewing screen
image
uniform light
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.)
Withdrawn
Application number
FR7809285A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2386833A1 publication Critical patent/FR2386833A1/fr
Withdrawn legal-status Critical Current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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/545—Lamp housings; Illuminating means for enlargers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

a. dispositif pour l'examen par transparence d'une diapositive ou d'une radiographie appliquée sur un support transparent. b. Dispositif caractérisé par l'extinction de la lumière frappant les surfaces des bords en excédant par rapport à l'épreuve à observer au moyen de deux filtres de polarisation à axes orthogonaux entre lesquels est placée l'epreuve à observer disposée sur une surface transparente. c. Dispositif applicable à une vision précise des détails d'une épreuve photographique ou radiographique sans éclairage parasite.
FR7809285A 1977-04-07 1978-03-30 Dispositif pour la vision ou reproduction de radiographies ou photographies sur support transparent faisant ecran automatiquement Withdrawn FR2386833A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2219477A IT1075746B (it) 1977-04-07 1977-04-07 Dispositivo per visione o riproduzione fotografica di radiografie e fotografie su supporto trasparente,con mascheratura automatica

Publications (1)

Publication Number Publication Date
FR2386833A1 true FR2386833A1 (fr) 1978-11-03

Family

ID=11192865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809285A Withdrawn FR2386833A1 (fr) 1977-04-07 1978-03-30 Dispositif pour la vision ou reproduction de radiographies ou photographies sur support transparent faisant ecran automatiquement

Country Status (3)

Country Link
DE (1) DE2815164A1 (fr)
FR (1) FR2386833A1 (fr)
IT (1) IT1075746B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2719672A1 (fr) * 1994-05-06 1995-11-10 Badet Henri Paul Dispositif compact d'examen de films transparents du type négatoscope.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106137A1 (de) * 1991-02-27 1991-09-12 Reil Philipp Dip Soz Wiss Vorrichtung zur abbildung von sich abwechselnd in positiver und negativer form darstellenden auswechselbaren und veraenderbaren bild- und schriftzeichen
JP2004039392A (ja) * 2002-07-02 2004-02-05 Sumitomo Rubber Ind Ltd 光源ユニット及び当該光源ユニットを備えた発光装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2719672A1 (fr) * 1994-05-06 1995-11-10 Badet Henri Paul Dispositif compact d'examen de films transparents du type négatoscope.
WO1995030980A1 (fr) * 1994-05-06 1995-11-16 Badet Henri Paul Dispositif compact d'examen de films transparents du type negatoscope

Also Published As

Publication number Publication date
DE2815164A1 (de) 1978-10-19
IT1075746B (it) 1985-04-22

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Legal Events

Date Code Title Description
ST Notification of lapse