FR1109510A - Improvements to shadowless type lighting fixtures - Google Patents

Improvements to shadowless type lighting fixtures

Info

Publication number
FR1109510A
FR1109510A FR1109510DA FR1109510A FR 1109510 A FR1109510 A FR 1109510A FR 1109510D A FR1109510D A FR 1109510DA FR 1109510 A FR1109510 A FR 1109510A
Authority
FR
France
Prior art keywords
shadowless
lighting fixtures
type lighting
type
fixtures
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)
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.)
Anciens Etablissements Barbier Benard and Turenne SA
Original Assignee
Anciens Etablissements Barbier Benard and Turenne SA
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 Anciens Etablissements Barbier Benard and Turenne SA filed Critical Anciens Etablissements Barbier Benard and Turenne SA
Application granted granted Critical
Publication of FR1109510A publication Critical patent/FR1109510A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
FR1109510D 1954-07-28 1954-07-28 Improvements to shadowless type lighting fixtures Expired FR1109510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1109510T 1954-07-28

Publications (1)

Publication Number Publication Date
FR1109510A true FR1109510A (en) 1956-01-30

Family

ID=9625621

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1109510D Expired FR1109510A (en) 1954-07-28 1954-07-28 Improvements to shadowless type lighting fixtures

Country Status (1)

Country Link
FR (1) FR1109510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457401A (en) * 1966-01-08 1969-07-22 Philips Corp Light projection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457401A (en) * 1966-01-08 1969-07-22 Philips Corp Light projection system

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