FR991885A - Anti-blind device for lighting devices - Google Patents

Anti-blind device for lighting devices

Info

Publication number
FR991885A
FR991885A FR991885DA FR991885A FR 991885 A FR991885 A FR 991885A FR 991885D A FR991885D A FR 991885DA FR 991885 A FR991885 A FR 991885A
Authority
FR
France
Prior art keywords
lighting devices
blind device
blind
lighting
devices
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
Rene-Jean Le Guillou
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 FR991885A publication Critical patent/FR991885A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR991885D 1949-05-21 1949-05-21 Anti-blind device for lighting devices Expired FR991885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR991885T 1949-05-21

Publications (1)

Publication Number Publication Date
FR991885A true FR991885A (en) 1951-10-11

Family

ID=9554362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991885D Expired FR991885A (en) 1949-05-21 1949-05-21 Anti-blind device for lighting devices

Country Status (1)

Country Link
FR (1) FR991885A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483983A1 (en) * 1980-06-10 1981-12-11 Durlumen Sarl Ets Corrugated backing for reflector - has aluminium strip of specified thickness passed through forming rollers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483983A1 (en) * 1980-06-10 1981-12-11 Durlumen Sarl Ets Corrugated backing for reflector - has aluminium strip of specified thickness passed through forming rollers

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