FR1025896A - Lighting device without cast shadow of a notable elongated surface such as a table - Google Patents

Lighting device without cast shadow of a notable elongated surface such as a table

Info

Publication number
FR1025896A
FR1025896A FR1025896DA FR1025896A FR 1025896 A FR1025896 A FR 1025896A FR 1025896D A FR1025896D A FR 1025896DA FR 1025896 A FR1025896 A FR 1025896A
Authority
FR
France
Prior art keywords
notable
lighting device
elongated surface
cast shadow
shadow
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)
Inventor
Jean-Henri-Pierre Blin
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 filed Critical
Application granted granted Critical
Publication of FR1025896A publication Critical patent/FR1025896A/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
    • F21V7/08—Optical design with elliptical curvature
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1025896D 1950-10-12 1950-10-12 Lighting device without cast shadow of a notable elongated surface such as a table Expired FR1025896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1025896T 1950-10-12

Publications (1)

Publication Number Publication Date
FR1025896A true FR1025896A (en) 1953-04-21

Family

ID=9579750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1025896D Expired FR1025896A (en) 1950-10-12 1950-10-12 Lighting device without cast shadow of a notable elongated surface such as a table

Country Status (1)

Country Link
FR (1) FR1025896A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103994341A (en) * 2013-02-18 2014-08-20 孝感市捷能特种光源照明器具有限公司 High-reflectance three-way elliptic surface reflector grading and lighting method and bulb

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103994341A (en) * 2013-02-18 2014-08-20 孝感市捷能特种光源照明器具有限公司 High-reflectance three-way elliptic surface reflector grading and lighting method and bulb

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