FR1081957A - Improvements to illuminated objects in the dark - Google Patents

Improvements to illuminated objects in the dark

Info

Publication number
FR1081957A
FR1081957A FR1081957DA FR1081957A FR 1081957 A FR1081957 A FR 1081957A FR 1081957D A FR1081957D A FR 1081957DA FR 1081957 A FR1081957 A FR 1081957A
Authority
FR
France
Prior art keywords
dark
illuminated objects
illuminated
objects
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
French (fr)
Inventor
Helene Dubois
Jean-Marie Bernard
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 FR1081957A publication Critical patent/FR1081957A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/30—Illumination of dials or hands
    • G04B19/32—Illumination of dials or hands by luminescent substances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1081957D 1953-05-15 1953-05-15 Improvements to illuminated objects in the dark Expired FR1081957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1081957T 1953-05-15

Publications (1)

Publication Number Publication Date
FR1081957A true FR1081957A (en) 1954-12-24

Family

ID=9610423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1081957D Expired FR1081957A (en) 1953-05-15 1953-05-15 Improvements to illuminated objects in the dark

Country Status (1)

Country Link
FR (1) FR1081957A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851731A (en) * 1955-04-21 1958-09-16 Jules P Gits Method of molding arcuate indiciacontaining articles
EP0199237A2 (en) * 1985-04-25 1986-10-29 Agfa-Gevaert AG Viewing window for cassettes
EP0282606A1 (en) * 1987-03-14 1988-09-21 Sen Yuan Fan Fluorescent clock dial and process for producing the same
WO1994022062A1 (en) * 1993-03-18 1994-09-29 Billight S.A. Luminescent element

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851731A (en) * 1955-04-21 1958-09-16 Jules P Gits Method of molding arcuate indiciacontaining articles
EP0199237A2 (en) * 1985-04-25 1986-10-29 Agfa-Gevaert AG Viewing window for cassettes
EP0199237A3 (en) * 1985-04-25 1988-03-23 Agfa-Gevaert AG Viewing window for cassettes
EP0282606A1 (en) * 1987-03-14 1988-09-21 Sen Yuan Fan Fluorescent clock dial and process for producing the same
WO1994022062A1 (en) * 1993-03-18 1994-09-29 Billight S.A. Luminescent element
CH687289GA3 (en) * 1993-03-18 1996-11-15 Promatec Systems Sa Luminescent element and method of manufacturing a luminescent element.

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