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FR462817A - Device for adjusting closed light sources - Google Patents

Device for adjusting closed light sources

Info

Publication number
FR462817A
FR462817A FR462817A FR462817DA FR462817A FR 462817 A FR462817 A FR 462817A FR 462817 A FR462817 A FR 462817A FR 462817D A FR462817D A FR 462817DA FR 462817 A FR462817 A FR 462817A
Authority
FR
France
Prior art keywords
light sources
closed light
adjusting closed
adjusting
sources
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
FR462817A
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.)
CIE GENERALE D ELECTRICITE DE
Original Assignee
CIE GENERALE D ELECTRICITE DE
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 CIE GENERALE D ELECTRICITE DE filed Critical CIE GENERALE D ELECTRICITE DE
Application granted granted Critical
Publication of FR462817A publication Critical patent/FR462817A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR462817A 1912-09-21 1913-09-20 Device for adjusting closed light sources Expired FR462817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE462817X 1912-09-21

Publications (1)

Publication Number Publication Date
FR462817A true FR462817A (en) 1914-02-05

Family

ID=1501960

Family Applications (1)

Application Number Title Priority Date Filing Date
FR462817A Expired FR462817A (en) 1912-09-21 1913-09-20 Device for adjusting closed light sources

Country Status (1)

Country Link
FR (1) FR462817A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151475B (en) * 1960-05-06 1963-07-18 Paul Wittstock Anti-glare device for lights, especially for street lights
EP0053922A1 (en) * 1980-12-10 1982-06-16 Invisible Optics Inc. Light masking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151475B (en) * 1960-05-06 1963-07-18 Paul Wittstock Anti-glare device for lights, especially for street lights
EP0053922A1 (en) * 1980-12-10 1982-06-16 Invisible Optics Inc. Light masking device

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