FR974743A - Perfectionnements aux réflecteurs paraboliques, notamment pour lampes électriques portatives - Google Patents

Perfectionnements aux réflecteurs paraboliques, notamment pour lampes électriques portatives

Info

Publication number
FR974743A
FR974743A FR974743DA FR974743A FR 974743 A FR974743 A FR 974743A FR 974743D A FR974743D A FR 974743DA FR 974743 A FR974743 A FR 974743A
Authority
FR
France
Prior art keywords
portable electric
electric lamps
parabolic reflectors
reflectors
parabolic
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
English (en)
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.)
AMEL ETS
Original Assignee
AMEL ETS
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 AMEL ETS filed Critical AMEL ETS
Application granted granted Critical
Publication of FR974743A publication Critical patent/FR974743A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0075—Reflectors for light sources for portable lighting devices
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR974743D 1948-11-08 1948-11-08 Perfectionnements aux réflecteurs paraboliques, notamment pour lampes électriques portatives Expired FR974743A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR974743T 1948-11-08

Publications (1)

Publication Number Publication Date
FR974743A true FR974743A (fr) 1951-02-26

Family

ID=9517659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974743D Expired FR974743A (fr) 1948-11-08 1948-11-08 Perfectionnements aux réflecteurs paraboliques, notamment pour lampes électriques portatives

Country Status (1)

Country Link
FR (1) FR974743A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646215A (en) * 1985-08-30 1987-02-24 Gte Products Corporation Lamp reflector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646215A (en) * 1985-08-30 1987-02-24 Gte Products Corporation Lamp reflector

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