FR524882A - High efficiency, uniform distribution and adjustable intensity transparency lighting device - Google Patents

High efficiency, uniform distribution and adjustable intensity transparency lighting device

Info

Publication number
FR524882A
FR524882A FR524882A FR524882DA FR524882A FR 524882 A FR524882 A FR 524882A FR 524882 A FR524882 A FR 524882A FR 524882D A FR524882D A FR 524882DA FR 524882 A FR524882 A FR 524882A
Authority
FR
France
Prior art keywords
lighting device
high efficiency
uniform distribution
adjustable intensity
transparency lighting
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
FR524882A
Other languages
French (fr)
Inventor
Aron Polack
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 FR524882A publication Critical patent/FR524882A/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
    • G09F13/14—Arrangements of reflectors therein

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR524882A 1917-03-05 1917-03-05 High efficiency, uniform distribution and adjustable intensity transparency lighting device Expired FR524882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR524882T 1917-03-05

Publications (1)

Publication Number Publication Date
FR524882A true FR524882A (en) 1921-09-12

Family

ID=8919644

Family Applications (1)

Application Number Title Priority Date Filing Date
FR524882A Expired FR524882A (en) 1917-03-05 1917-03-05 High efficiency, uniform distribution and adjustable intensity transparency lighting device

Country Status (1)

Country Link
FR (1) FR524882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603896A (en) * 1948-02-25 1952-07-22 Jack O Bennett Chart holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603896A (en) * 1948-02-25 1952-07-22 Jack O Bennett Chart holder

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