FR1142655A - Appareil pour la vision des clichés diapositifs - Google Patents

Appareil pour la vision des clichés diapositifs

Info

Publication number
FR1142655A
FR1142655A FR1142655DA FR1142655A FR 1142655 A FR1142655 A FR 1142655A FR 1142655D A FR1142655D A FR 1142655DA FR 1142655 A FR1142655 A FR 1142655A
Authority
FR
France
Prior art keywords
viewing slides
viewing
slides
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.)
Expired
Application number
Other languages
English (en)
Inventor
Rene-Georges Martin
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 filed Critical
Application granted granted Critical
Publication of FR1142655A publication Critical patent/FR1142655A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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)
FR1142655D 1956-02-13 1956-02-13 Appareil pour la vision des clichés diapositifs Expired FR1142655A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1142655T 1956-02-13

Publications (1)

Publication Number Publication Date
FR1142655A true FR1142655A (fr) 1957-09-20

Family

ID=9643418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1142655D Expired FR1142655A (fr) 1956-02-13 1956-02-13 Appareil pour la vision des clichés diapositifs

Country Status (1)

Country Link
FR (1) FR1142655A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201883A (en) * 1965-08-24 Schleisner-meyer
US3402491A (en) * 1968-02-09 1968-09-24 Xicom Inc Portable visual display device
US4035939A (en) * 1976-01-08 1977-07-19 The United States Of America As Represented By The Secretary Of The Air Force Lighting system for selective back lighting
US4637150A (en) * 1984-05-18 1987-01-20 N.V. Optische Industrie "De Oude Delft" Light box for providing a background illumination having brightness values locally adjusted to the density of a transparency to be viewed by means of the light box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201883A (en) * 1965-08-24 Schleisner-meyer
US3402491A (en) * 1968-02-09 1968-09-24 Xicom Inc Portable visual display device
US4035939A (en) * 1976-01-08 1977-07-19 The United States Of America As Represented By The Secretary Of The Air Force Lighting system for selective back lighting
US4637150A (en) * 1984-05-18 1987-01-20 N.V. Optische Industrie "De Oude Delft" Light box for providing a background illumination having brightness values locally adjusted to the density of a transparency to be viewed by means of the light box

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