ES289624A1 - Shadowless lighting apparatus - Google Patents

Shadowless lighting apparatus

Info

Publication number
ES289624A1
ES289624A1 ES0289624A ES289624A ES289624A1 ES 289624 A1 ES289624 A1 ES 289624A1 ES 0289624 A ES0289624 A ES 0289624A ES 289624 A ES289624 A ES 289624A ES 289624 A1 ES289624 A1 ES 289624A1
Authority
ES
Spain
Prior art keywords
refractor
light source
revolution
axis
fresnel
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
ES0289624A
Other languages
Spanish (es)
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
Publication of ES289624A1 publication Critical patent/ES289624A1/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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Improvements in lighting fixtures without cast shadow, particularly intended for medical, surgical or dental use, characterized by the fact that it comprises in combination: a light source, a refractor of revolution consisting of a Fresnel lens; and a cylinder-elliptical shaped reflector as a general rule whose focal axis is confused with the axis of revolution of the Fresnel optics, the light source being displaced in relation to the focal plane of the Fresnel optics that forms the refractor, but placed in the reflector focus. (Machine-translation by Google Translate, not legally binding)
ES0289624A 1962-07-06 1963-07-04 Shadowless lighting apparatus Expired ES289624A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR903268A FR1335044A (en) 1962-07-06 1962-07-06 Light fixture without drop shadow

Publications (1)

Publication Number Publication Date
ES289624A1 true ES289624A1 (en) 1963-11-01

Family

ID=8782712

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0289624A Expired ES289624A1 (en) 1962-07-06 1963-07-04 Shadowless lighting apparatus

Country Status (3)

Country Link
ES (1) ES289624A1 (en)
FR (1) FR1335044A (en)
GB (1) GB985836A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023408A1 (en) * 1990-07-23 1992-01-30 Delma Elektro Med App OPERATION LIGHT

Also Published As

Publication number Publication date
FR1335044A (en) 1963-08-16
GB985836A (en) 1965-03-10

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