[go: up one dir, main page]

ES312971A1 - A lighting device. (Machine-translation by Google Translate, not legally binding) - Google Patents

A lighting device. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES312971A1
ES312971A1 ES0312971A ES312971A ES312971A1 ES 312971 A1 ES312971 A1 ES 312971A1 ES 0312971 A ES0312971 A ES 0312971A ES 312971 A ES312971 A ES 312971A ES 312971 A1 ES312971 A1 ES 312971A1
Authority
ES
Spain
Prior art keywords
ellipsoid
translation
machine
lighting device
legally binding
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
ES0312971A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES312971A1 publication Critical patent/ES312971A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/30—Envelopes; Vessels incorporating 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
    • F21V7/08—Optical design with elliptical curvature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A lighting device, specially designed to be mounted on ceilings, consisting of a hollow mirror formed by an ellipsoid of revolution, located at least mainly in the space between two planes perpendicular to the major axis of the ellipsoid and passing through the light source located approximately at a focus of the ellipsoid and by the apex or crest of the ellipsoid closest to said focus respectively, characterized in that the device further comprises means for refracting the light formed by a divergent refractor, whose axis coincides with the axis of the ellipsoid, and which is located between the first and second foci of said ellipsoid. (Machine-translation by Google Translate, not legally binding)
ES0312971A 1964-05-16 1965-05-14 A lighting device. (Machine-translation by Google Translate, not legally binding) Expired ES312971A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6405515A NL6405515A (en) 1964-05-16 1964-05-16

Publications (1)

Publication Number Publication Date
ES312971A1 true ES312971A1 (en) 1965-10-16

Family

ID=19790095

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0312971A Expired ES312971A1 (en) 1964-05-16 1965-05-14 A lighting device. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES312971A1 (en)
NL (1) NL6405515A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089047A (en) * 1976-04-26 1978-05-09 Willy Luderitz Trifocal mirror-reflector

Also Published As

Publication number Publication date
NL6405515A (en) 1965-11-17

Similar Documents

Publication Publication Date Title
ES331410A1 (en) A simulated fire disposal for chimneys. (Machine-translation by Google Translate, not legally binding)
ES178055U (en) Prism and switch that includes it. (Machine-translation by Google Translate, not legally binding)
ES441897A1 (en) Lamp assembly
ES312971A1 (en) A lighting device. (Machine-translation by Google Translate, not legally binding)
ES313134A1 (en) Dual beam electric lamp
ES306890A1 (en) Catoptrical-dioptrical device for electric lighting
ES196602U (en) Lighting device, particularly for vehicles automóviles. (Machine-translation by Google Translate, not legally binding)
ES299797A1 (en) Device that allows to obtain at the will the road light or the crossing light (Machine-translation by Google Translate, not legally binding)
CH453135A (en) Soundproofing device with parabolic reflector
ES315703A1 (en) A balancing device with self-lighting lamp. (Machine-translation by Google Translate, not legally binding)
ES184328U (en) Torch. (Machine-translation by Google Translate, not legally binding)
ES81185U (en) Reflective diffuser screen of raddades (Machine-translation by Google Translate, not legally binding)
ES247728A1 (en) Improvements in reflector headlights through elliptic surfaces of revolution (Machine-translation by Google Translate, not legally binding)
ES110187U (en) A recessed apparatus, for the lighting of walls and paraments. (Machine-translation by Google Translate, not legally binding)
ES133901U (en) Improved lighting device. (Machine-translation by Google Translate, not legally binding)
ES125737U (en) Lighting device for toys (Machine-translation by Google Translate, not legally binding)
ES406826A1 (en) An illumination system. (Machine-translation by Google Translate, not legally binding)
ES120174Y (en) LIGHTING LAMP WITH REFLECTING ELEMENTS.
ES335855A1 (en) Headlight of crossing and turning light for automobiles. (Machine-translation by Google Translate, not legally binding)
ES120173Y (en) LAMP WITH DIFFUSING SCREEN FOR LIGHTING.
ES153712U (en) New perfected lantern (Machine-translation by Google Translate, not legally binding)
FR1512784A (en) Automatic adjustment of gas absorption units, especially hydrocarbons
ES145345U (en) Diffusing celosy for lighting. (Machine-translation by Google Translate, not legally binding)
ES295087A1 (en) Improvements introduced in the exterior lighting appliances (Machine-translation by Google Translate, not legally binding)
ES173303U (en) Streetlight. (Machine-translation by Google Translate, not legally binding)