EP0676022A1 - Reflecteur pyramidal a source radiante axiale - Google Patents

Reflecteur pyramidal a source radiante axiale

Info

Publication number
EP0676022A1
EP0676022A1 EP93924792A EP93924792A EP0676022A1 EP 0676022 A1 EP0676022 A1 EP 0676022A1 EP 93924792 A EP93924792 A EP 93924792A EP 93924792 A EP93924792 A EP 93924792A EP 0676022 A1 EP0676022 A1 EP 0676022A1
Authority
EP
European Patent Office
Prior art keywords
triangles
isosceles
light
shape
reflector
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.)
Withdrawn
Application number
EP93924792A
Other languages
German (de)
English (en)
Inventor
Sesto Severino Donati
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0676022A1 publication Critical patent/EP0676022A1/fr
Withdrawn legal-status Critical Current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
    • F21V7/05—Optical design plane

Definitions

  • the present invention concerns a reflector device having an internal structure in the shape of a regular pyramid, whose specular surfaces consist of isosceles, equal triangles, with a light or heat source provided onto the central median axis.
  • the aim set forth is reached by means of the device according to the present invention, comprising an internal specular surface having the shape of a regular pyramid consisting of a plurality of isosceles triangles so as to have at the basis of said pyramid a shape of a regular polygon; the sum of the angles at the vertex of said triangles is of about 256" and the inclination is constant - about 32° - with respect to the central axis, where the light or heat source is provided, so as to produce a multipolar and not dazzling reflection.
  • the specular surfaces of said isosceles triangles may be slightly concave instead of being plane.
  • Figures 1 and 2 show an axonometric and transparent view of two variants of the reflector device with an internal structure in the shape of a regular pyramid having respectively a square and octagonal basis, and with a light or heat source on the central median axis.
  • the enclosed figures show a reflector device with an internal structure in the shape of a regular pyramid, having a square or a polygon basis with a plurality of sides, comprising:
  • a structure 4 of the reflector having the shape of a regular pyramid, consisting of a plurality of isosceles specular triangles 5, and the angles at the vertex, in correspondence with said sleeve 2, reach a sum of 256° when they are inclined of 32° with respect to the median axis M; said inclination remains constant even if the number of said isosceles triangles, and therefore the base polygon of said pyramidal shape - side 6 - varies;
  • the number of the sides 6 of said base polygon and therefore the number of said isosceles triangles 5 and the pyramidal shapes of the structure 4 may change from three to any other number, maintaining the regular structure of the base polygon and the sum of the angles of the vertex of the isosceles triangles 5, corresponding to about 256°, so as to be each 64° in case of a square pyramidal structure and 32° in the octagonal structure.

Landscapes

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

Abstract

Réflecteur dont la structure interne est un miroir pyramidal (4) fait de plusieurs triangles isocèles (5) formant à la base de ladite pyramide un polygone régulier à trois cotés ou plus. La somme des angles au sommet desdits triangles (5) totalisant env. 256°, et leur inclinaison par rapport à l'axe central où se trouve la source radiante est de 32°, d'où une réflexion multipolaire non éblouissante.
EP93924792A 1993-10-15 1993-10-15 Reflecteur pyramidal a source radiante axiale Withdrawn EP0676022A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1993/000111 WO1995010731A1 (fr) 1993-10-15 1993-10-15 Reflecteur pyramidal a source radiante axiale

Publications (1)

Publication Number Publication Date
EP0676022A1 true EP0676022A1 (fr) 1995-10-11

Family

ID=11331942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93924792A Withdrawn EP0676022A1 (fr) 1993-10-15 1993-10-15 Reflecteur pyramidal a source radiante axiale

Country Status (2)

Country Link
EP (1) EP0676022A1 (fr)
WO (1) WO1995010731A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0123979D0 (en) * 2001-10-05 2001-11-28 Nicotech Ltd Opticle systems
GB2384549B (en) * 2002-01-23 2003-12-10 Aurora Ltd Lamps
US7246923B2 (en) * 2004-02-11 2007-07-24 3M Innovative Properties Company Reshaping light source modules and illumination systems using the same
CN101720405B (zh) * 2008-07-31 2011-09-07 香港应用科技研究院有限公司 光反射罩
CN101963326B (zh) * 2009-07-23 2012-03-14 富士迈半导体精密工业（上海）有限公司 反射罩及照明装置
TWI382141B (zh) * 2009-08-21 2013-01-11 Foxsemicon Integrated Tech Inc 反射罩及照明裝置
CN102466201B (zh) * 2010-11-16 2014-03-12 海洋王照明科技股份有限公司 一种灯具反射器及便携灯具
DE202013003573U1 (de) * 2013-04-16 2013-06-04 Gerhard Saalmann Ganzkörper-Belichtungseinheit
ITRM20130677A1 (it) * 2013-12-09 2015-06-10 Alba Tek 2013 Gruppo ottico

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE459203A (fr) *
GB440487A (en) * 1933-05-19 1935-12-23 Edward Gerald De Mey Improvements in the art of illumination
US4264947A (en) * 1978-06-09 1981-04-28 Eastman Kodak Company Reflector arrangement for providing high intensity, uniform and specular illumination of a relatively large exposure area

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9510731A1 *

Also Published As

Publication number Publication date
WO1995010731A1 (fr) 1995-04-20

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19951020

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Effective date: 19970501