FR406975A - Indirect light panel - Google Patents

Indirect light panel

Info

Publication number
FR406975A
FR406975A FR406975DA FR406975A FR 406975 A FR406975 A FR 406975A FR 406975D A FR406975D A FR 406975DA FR 406975 A FR406975 A FR 406975A
Authority
FR
France
Prior art keywords
light panel
indirect light
indirect
panel
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
Gustave Weissmann
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
Application granted granted Critical
Publication of FR406975A publication Critical patent/FR406975A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR406975D 1909-09-13 1909-09-13 Indirect light panel Expired FR406975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR406975T 1909-09-13

Publications (1)

Publication Number Publication Date
FR406975A true FR406975A (en) 1910-02-16

Family

ID=1451319

Family Applications (1)

Application Number Title Priority Date Filing Date
FR406975D Expired FR406975A (en) 1909-09-13 1909-09-13 Indirect light panel

Country Status (1)

Country Link
FR (1) FR406975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607145A (en) * 1946-06-10 1952-08-19 Winslow B Pope Illuminated greeting card

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607145A (en) * 1946-06-10 1952-08-19 Winslow B Pope Illuminated greeting card

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