EP2999918A1 - Système de guidage de lumière - Google Patents

Système de guidage de lumière

Info

Publication number
EP2999918A1
EP2999918A1 EP14731306.8A EP14731306A EP2999918A1 EP 2999918 A1 EP2999918 A1 EP 2999918A1 EP 14731306 A EP14731306 A EP 14731306A EP 2999918 A1 EP2999918 A1 EP 2999918A1
Authority
EP
European Patent Office
Prior art keywords
light
light guide
guide system
elements
opening
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Withdrawn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
EP14731306.8A
Other languages
German (de)
English (en)
Inventor
Hannu Hukkanen
Tero MÄKINEN
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.)
Ledil Oy
Original Assignee
Ledil Oy
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 Ledil Oy filed Critical Ledil Oy
Publication of EP2999918A1 publication Critical patent/EP2999918A1/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Withdrawn legal-status Critical Current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
    • F21V7/10—Construction
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity

Definitions

  • the invention relates generally to illuminating engineering. More particularly, the invention relates to a light guide system for modifying a light distribution pattern of a light source that can be, for example but not necessarily, a light emitting diode "LED".
  • a light source that can be, for example but not necessarily, a light emitting diode "LED”.
  • the light source can comprise, for example but not necessarily, one or more light emitting diodes "LED", one or more filament lamps, or one or more gas-discharge lamps.
  • Figure 1 shows an exemplifying light guide 101 according to the prior art for modifying a light distribution pattern of a light source 102. Electrical wires connected to the light source 102 are not shown in figure 1 .
  • the light guide comprises a reflective surface 103 for reflecting at least a part of a first portion of the light emitted by the light source 102 and an opening 104 for constituting a passage for a second portion of the light.
  • light guides of the kind described above can be used, for example, for decoration purposes so that the first and second portions of the light are illuminating a wall or a ceiling.
  • the term "light guide” is not limited to mean only devices designed to transport light from a light source to a point at some distance by means of total internal reflection but the term "light guide” covers different devices for modifying a light distribution pattern of a light source by means of e.g. the total internal reflection, surface reflection, refraction, etc. and their various combinations.
  • the first element comprises the fastening section for fastening the first element to an external mechanical structure, the first element can be used also without any second element.
  • - mold casting a single piece that comprises a first section having the form of the above-mentioned first element, one or more second sections each hav- ing the form of one of the above-mentioned second elements, and breakable lamps connecting the first section and the one or more second sections to constitute the single piece, and
  • figure 1 shows a light guide according to the prior art
  • figures 2a, 2b and 2c illustrate a light guide system according to an exemplifying embodiment of the invention
  • figure 3 shows a light guide system according to an exemplifying embodiment of the invention
  • figure 4 shows a light guide system according to an exemplifying embodiment of the invention
  • figure 5 shows an illuminator device according to an exemplifying embodiment of the invention
  • figure 6 shows a flowchart of a method according to an exemplifying embodiment of the invention for manufacturing a light guide system according to an exemplifying embodiment of the invention.
  • the first element 201 comprises a first reflective surface 203 for reflecting at least a part of a first portion of the light emitted by the light source 202, and an opening 204 for constituting a passage for a second portion of the light.
  • the first element 201 further comprises a fastening section 210 for fastening the first element to an external mechanical structure e.g. a wall.
  • the fastening section can be a same piece of material as the other portion of the first element or the fastening section can be a separate piece attached to the other portion of the first element.
  • the second element 205c does not comprise any opening and thus the second element 205c is configured to reflect substantially the entire second portion of the light when the second element 205c has been attached to the first element.
  • the amount of the light directed substantially to the positive y-direction of the coordinate system 299 can be altered by changing the second element.
  • the first element 201 comprises a third reflective surface 208 for modifying the distribution of light that has passed the open- ing 204 of the first element in a case where there is no second element or in a case where there is a second element provided with an opening.
  • the amount of the light directed substantially to the negative y-direction of the coordinate system 299 is dependent only in a small extent on the second element being used.
  • the first element 201 and the second elements 205a-205c of the light guide sys- tern illustrated in figures 2a-2c can be, for example, metal or metal coated plastic.
  • the metal can be, for example, aluminum or silver.
  • FIG. 3 shows a light guide system according to an exemplifying embodiment of the invention.
  • the light guide system comprises a first element 301 and second elements 305a and 305b.
  • the first element 301 comprises a first reflective surface 303 and an opening 304.
  • the first element 301 further comprises a fastening section 310 for fastening the first element to an external mechanical structure.
  • Each of the second elements 305a and 305b comprises a second reflective surface.
  • Each of the second elements 305a and 305b is shaped to fit with the opening 304 of the first element so that the second element is attachable to the first element and thereafter non-destructively detachable from the first element.
  • the second element 305a comprises an opening 307 that is a through hole and the second element 305b is configured to fully close the opening 304 of the first element 301 .
  • the first reflec- tive surface 303 can be considered to be defined substantially by a concave side of an arc 322 of a parabola that is rotated around a symmetry axis 323 that is parallel with the y-axis of the coordinate system 399.
  • FIG. 4 shows a light guide system according to an exemplifying embodiment of the invention.
  • the light guide system comprises a first element 401 and second elements 405a, 405b, and 405b.
  • the first element 401 comprises a first reflective surface 403 and an opening 404.
  • the first element 401 further comprises a fastening section 410 for fastening the first element to an external mechanical structure.
  • Each of the second elements 405a-405c comprises a second reflective surface.
  • Each of the second elements 405a-405c is shaped to fit with the opening 404 of the first element so that the second element is attachable to the first element and thereafter non-destructively detachable from the first element.
  • the light guide system further comprises breaka- ble lamps 409a, 409b, and 409c connecting the first element 401 and the second elements 405a-405c to constitute a single piece that is straightforward to manufacture and handle in a product management system.
  • Figure 6 shows a flowchart of a method according to an exemplifying embodiment of the invention for manufacturing a light guide system according to an exemplifying embodiment of the invention.
  • the method comprises the following actions: - action 601 : mold casting a single piece that comprises a first section having the form of the first element of the light guide system, one or more second sections each having the form of one of the second elements of the light guide system, and breakable lamps connecting the first section and the one or more second sections to constitute the single piece, and - action 602: coating the single piece with a layer of metal.

Landscapes

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

Abstract

La présente invention concerne un système de guidage de lumière comprenant un premier élément (201) qui comprend une première surface réfléchissante (203) pour réfléchir au moins une partie d'une première portion de lumière émise par une source de lumière (202) et une ouverture (204) pour constituer un passage pour une deuxième portion de la lumière. Le système de guidage de lumière comprend en outre un ou plusieurs deuxièmes éléments (205a-205c) comprenant chacun une deuxième surface réfléchissante (206a-206c) et étant façonnés de façon à s'ajuster à l'ouverture du premier élément de telle sorte que le deuxième élément puisse être attaché au premier élément de façon à disposer la deuxième surface réfléchissante de telle sorte qu'elle réfléchisse au moins une partie de la deuxième portion de la lumière vers une région spatiale vers laquelle la première portion de la lumière est dirigée. Différents motifs de répartition de la lumière peuvent être obtenus grâce à l'utilisation de deuxièmes éléments différents avec le premier élément.
EP14731306.8A 2013-05-21 2014-05-20 Système de guidage de lumière Withdrawn EP2999918A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20135545 2013-05-21
PCT/FI2014/050379 WO2014188066A1 (fr) 2013-05-21 2014-05-20 Système de guidage de lumière

Publications (1)

Publication Number Publication Date
EP2999918A1 true EP2999918A1 (fr) 2016-03-30

Family

ID=50976663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14731306.8A Withdrawn EP2999918A1 (fr) 2013-05-21 2014-05-20 Système de guidage de lumière

Country Status (2)

Country Link
EP (1) EP2999918A1 (fr)
WO (1) WO2014188066A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11867365B2 (en) 2014-11-07 2024-01-09 Axis Lighting Inc. Luminaire for emitting directional and non-directional light
US11553566B2 (en) 2014-11-07 2023-01-10 Axis Lighting Inc. Luminaire for emitting directional and non-directional light

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635431A1 (de) * 1976-08-06 1978-02-09 Zeiss Ikon Ag Beleuchtungsanlage fuer direkte und indirekte beleuchtung
DE202007015112U1 (de) * 2007-10-29 2008-01-03 Ansorg Gmbh Leuchte mit einer Kombination von Reflektoren
DE102009007308B4 (de) * 2009-02-03 2014-11-20 Herbert Waldmann Gmbh & Co Kg Anbau- bzw. Wandleuchte

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014188066A1 *

Also Published As

Publication number Publication date
WO2014188066A1 (fr) 2014-11-27

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