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FR1007957A - Appareillage lumineux permettant de réaliser un éclairage sans ombres portées, concentré sur un champ limité - Google Patents

Appareillage lumineux permettant de réaliser un éclairage sans ombres portées, concentré sur un champ limité

Info

Publication number
FR1007957A
FR1007957A FR1007957DA FR1007957A FR 1007957 A FR1007957 A FR 1007957A FR 1007957D A FR1007957D A FR 1007957DA FR 1007957 A FR1007957 A FR 1007957A
Authority
FR
France
Prior art keywords
lighting
concentrated
limited field
cast shadows
equipment allowing
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.)
M CHENAILLE ET CH RAULOT LAPOI
Original Assignee
M CHENAILLE ET CH RAULOT LAPOI
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 M CHENAILLE ET CH RAULOT LAPOI filed Critical M CHENAILLE ET CH RAULOT LAPOI
Application granted granted Critical
Publication of FR1007957A publication Critical patent/FR1007957A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • 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
    • 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
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres
    • 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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1007957D 1948-04-21 1948-04-21 Appareillage lumineux permettant de réaliser un éclairage sans ombres portées, concentré sur un champ limité Expired FR1007957A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1007957T 1948-04-21

Publications (1)

Publication Number Publication Date
FR1007957A true FR1007957A (fr) 1952-05-12

Family

ID=9567017

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1007957D Expired FR1007957A (fr) 1948-04-21 1948-04-21 Appareillage lumineux permettant de réaliser un éclairage sans ombres portées, concentré sur un champ limité

Country Status (1)

Country Link
FR (1) FR1007957A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763772A (en) * 1952-08-25 1956-09-18 Sheldon H Hine Photographic illuminating device
DE19952502A1 (de) * 1999-10-29 2001-05-03 Acl Lichttechnik Gmbh Deckenleuchte mit zwei ringförmigen Leuchtmitteln

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763772A (en) * 1952-08-25 1956-09-18 Sheldon H Hine Photographic illuminating device
DE19952502A1 (de) * 1999-10-29 2001-05-03 Acl Lichttechnik Gmbh Deckenleuchte mit zwei ringförmigen Leuchtmitteln

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