FR1136615A - Light item - Google Patents

Light item

Info

Publication number
FR1136615A
FR1136615A FR1136615DA FR1136615A FR 1136615 A FR1136615 A FR 1136615A FR 1136615D A FR1136615D A FR 1136615DA FR 1136615 A FR1136615 A FR 1136615A
Authority
FR
France
Prior art keywords
light item
item
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Eugene Desfourneaux
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 FR1136615A publication Critical patent/FR1136615A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1136615D 1955-03-11 1955-11-29 Light item Expired FR1136615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1136615X 1955-03-11

Publications (1)

Publication Number Publication Date
FR1136615A true FR1136615A (en) 1957-05-16

Family

ID=4559466

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1136615D Expired FR1136615A (en) 1955-03-11 1955-11-29 Light item

Country Status (1)

Country Link
FR (1) FR1136615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472340B1 (en) * 2011-01-03 2021-03-03 Patek Philippe SA Genève Timepiece component and method for manufacturing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472340B1 (en) * 2011-01-03 2021-03-03 Patek Philippe SA Genève Timepiece component and method for manufacturing same

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