FR799750A - Optical system for lighting a well-defined area - Google Patents

Optical system for lighting a well-defined area

Info

Publication number
FR799750A
FR799750A FR799750DA FR799750A FR 799750 A FR799750 A FR 799750A FR 799750D A FR799750D A FR 799750DA FR 799750 A FR799750 A FR 799750A
Authority
FR
France
Prior art keywords
lighting
well
optical system
defined area
area
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 FR799750A publication Critical patent/FR799750A/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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR799750D 1935-12-20 1935-12-20 Optical system for lighting a well-defined area Expired FR799750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR799750T 1935-12-20

Publications (1)

Publication Number Publication Date
FR799750A true FR799750A (en) 1936-06-18

Family

ID=9236982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR799750D Expired FR799750A (en) 1935-12-20 1935-12-20 Optical system for lighting a well-defined area

Country Status (1)

Country Link
FR (1) FR799750A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE952918C (en) * 1953-12-29 1956-11-22 Helmut Naumann Dr Ing Luminaire for light sources of great length but with a small diameter, preferably for flashlight discharge lamps
DE1127834B (en) * 1959-08-26 1962-04-19 Johann Winkelmeier Lighting device for indirect light with an elongated light source
DE1168363B (en) * 1954-01-27 1964-04-23 Gustaf Rikard Hassel Luminaire for room and street lighting with one or more cylindrical light sources in a cylindrical mirror reflector
US3184592A (en) * 1956-11-21 1965-05-18 Cibie Pierre Projectors, more particularly motor vehicle headlights
DE1195246B (en) * 1958-10-17 1965-06-24 Samuel Leon Perret reflector
US3251984A (en) * 1963-02-18 1966-05-17 Chicago Aerial Ind Inc Illumination optical system for aerial photography
DE1231185B (en) * 1962-08-06 1966-12-29 Willi Luederitz Dipl Ing Canal mirror light

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE952918C (en) * 1953-12-29 1956-11-22 Helmut Naumann Dr Ing Luminaire for light sources of great length but with a small diameter, preferably for flashlight discharge lamps
DE1168363B (en) * 1954-01-27 1964-04-23 Gustaf Rikard Hassel Luminaire for room and street lighting with one or more cylindrical light sources in a cylindrical mirror reflector
US3184592A (en) * 1956-11-21 1965-05-18 Cibie Pierre Projectors, more particularly motor vehicle headlights
DE1195246B (en) * 1958-10-17 1965-06-24 Samuel Leon Perret reflector
DE1127834B (en) * 1959-08-26 1962-04-19 Johann Winkelmeier Lighting device for indirect light with an elongated light source
DE1231185B (en) * 1962-08-06 1966-12-29 Willi Luederitz Dipl Ing Canal mirror light
US3251984A (en) * 1963-02-18 1966-05-17 Chicago Aerial Ind Inc Illumination optical system for aerial photography

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