EP0953800A1 - Dispositif de contrÔle de la lumière émise par une lampe allongée - Google Patents

Dispositif de contrÔle de la lumière émise par une lampe allongée Download PDF

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Publication number
EP0953800A1
EP0953800A1 EP98890139A EP98890139A EP0953800A1 EP 0953800 A1 EP0953800 A1 EP 0953800A1 EP 98890139 A EP98890139 A EP 98890139A EP 98890139 A EP98890139 A EP 98890139A EP 0953800 A1 EP0953800 A1 EP 0953800A1
Authority
EP
European Patent Office
Prior art keywords
light source
grooves
reflector
light
axis
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Withdrawn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
EP98890139A
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German (de)
English (en)
Inventor
Johannes Mag. Huter
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3486349&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0953800(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to NZ507603A priority Critical patent/NZ507603A/en
Priority to DK99917682T priority patent/DK1073862T4/da
Priority to DE59904630T priority patent/DE59904630D1/de
Priority to AT99917682T priority patent/ATE235019T1/de
Priority to US09/673,780 priority patent/US6400086B1/en
Priority to ES99917682T priority patent/ES2195562T5/es
Priority to PCT/AT1999/000107 priority patent/WO1999056058A1/fr
Priority to AU35886/99A priority patent/AU755027B2/en
Priority to EP99917682A priority patent/EP1073862B2/fr
Publication of EP0953800A1 publication Critical patent/EP0953800A1/fr
Withdrawn legal-status Critical Current

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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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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

Definitions

  • the present invention relates to a device for Light guidance for an elongated light source, in particular Fluorescent tube.
  • a light guide is often desired in order to to maintain the specified radiation angle, outside of which one extensive suppression of that emitted by the light source Light is done.
  • These can be refracting or reflecting Devices are used; a well-known type of reflective Devices are mirror grids made of longitudinal and transverse reflector slats. Combinations of refractory and reflective devices are possible.
  • the present invention is particularly concerned with a Light guiding device of the refracting type, which used alone or in conjunction with reflective elements can be.
  • the invention aims to be a refractory To create light guiding device, which one Simplified construction of lights, especially one cost-effective alternative to grid lights.
  • this structure redirects axially close Rays of light in a direction closer to the radial.
  • the Light radiation from such a device (at least partially) encased fluorescent tube is placed in an angle cone faded out around the axial, i.e. the beam angle is normal to Fluorescent tube axis (e.g. downwards) is restricted. in the The result can be based on the standard axially normal for mirror louvres Slats are dispensed with, since the invention Light guiding device the light suppression in the longitudinal direction takes over.
  • the grooves are preferred evenly over the inner circumference of the body, and are particularly preferred at least 20 marks provided. This will make the light distribution equalized over the radiation range.
  • Embodiment arises when according to another feature of the invention the flanks of the grooves in an axially normal Section seen at an angle of 40 ° to 46 °, preferably 43 °, are inclined with respect to the radial direction.
  • the distance between half the depth of the grooves is preferred and axis of the body 1.4 to 1.7 times the radius of the light source to be recorded, which is a particularly compact design enables.
  • the refractive index the transparent material is at least 1.45, which has a larger shading angle, i.e. a lesser Beam angle allows.
  • Another aspect of the invention is the creation a lamp with an elongated light source, in particular Fluorescent tube by a roof-like reflector is overlapped and with a light guide device according to the invention is equipped with a tubular body, which encloses the light source. If a light guiding device is used with tubular sector-shaped body, this surrounds the Light source on its side facing away from the reflector.
  • the length of the lamp shown in section in Fig. 1 in The direction of axis 2 can be chosen freely.
  • a fluorescent tube is any known form of an "elongated Light source "possible, e.g. halogen rods, chains from individual light sources such as incandescent lamps, etc.
  • the axis 2 of the Light source 1 need not necessarily be straight, but can also be slightly curved or polygonal, in which Cases of the body 3 according to the course of the light source 1 is adjusted.
  • the inside of the body 3 is parallel to the axis 2 running, adjacent grooves 5, notches or the like. Mistake. In the example shown, 12 grooves are 5 evenly distributed over the inner circumference of the body 3.
  • the grooves 5 have concave flanks 6, 7, seen in an axially normal section.
  • the radius R 1 of the flanks 6, 7 is approximately 0.5 to 2.0 times the distance R 2 between half the depth of the Grooves 5 and the common axis 2 of light source 1 and body 3.
  • the average angle ( ⁇ 1 + ⁇ 2 ) / 2 of the flanks 6, 7 to the radial 8 is in the range of 40 ° - 46 °, preferably about 43 °.
  • the distance R 2 between approximately half the depth of the grooves 5 and the common axis 2 of the light source 1 and body 3 is approximately 1.4 to 1.7 times the radius R L of the light source 1.
  • the outer radius R 3 of the body 3 is chosen to be as small as possible, ie in such a way that there is just sufficient strength for the body 3.
  • the valley bottoms 9 of the grooves 5 therefore extend close to the outer circumference of the body 3.
  • the number of grooves 5 can be chosen as large as desired and is limited in practice by manufacturing restrictions.
  • the flanks 6, 7 of the grooves 5 can of course also just be trained.
  • the operation of the device is as follows.
  • the light rays emanating from the light source 2 are deflected by the prism-like structure of the body 3 formed by the grooves 5 not only in the axially normal plane (as shown in FIG. 1) but also in each axially parallel plane, an example of which is shown in FIG. 2 is shown.
  • the body 3 shines in each Direction perpendicular to the axis wider than light source 1.
  • FIGS. 4 and 5 show a spatial representation of the Combination of the refraction effects outlined in FIGS. 1 and 2. All rays of light coming from a point 10 on the light source 2 at a cone shell angle 11 based on the axis 2 go out (Fig. 4), with the interposition of the body 3rd (Fig. 5) in the form of a "compressed" cone shell 12, a shading cone 13 is formed about the axis 2.
  • the shading cone 13 creates a downward limitation of the radiation angle of the lamp shown in FIG. 1 normal to the plane of the drawing in FIG. 1, as could otherwise only be achieved by axially normal transverse slats within the reflector 4.
  • the shading in the axial direction is advantageous Effect because the light rays deflected from the shading area the radiation intensity of the light source / body arrangement increase on the reflector 4 so that it is better used becomes.
  • a special advantage arises in connection with reflectors which do not measure the angle of rays to the axis change the apex angle of the shading cone of the entire Luminaire is therefore not smaller than that of the light guide.
  • axially normal flat reflectors which as bilateral Conclusion of the reflector 4 serve, or axially parallel trough-shaped reflectors, where every point of the Reflector has an axially parallel tangential plane on which the angle of each ray to the axis is only mirrored, but the amount does not change. With such reflectors the longitudinal blanking of the light guide is not reduced.
  • the body 3 do not enclose the light source 2 on all sides, for example it is sufficient a tubular sector body, which is the light source 2 e.g. partially ring-shaped on its side facing away from the reflector 4 surrounds, for example 1/4, half or 3/4.
  • both the reflector and the body coinciding open positions, axially parallel slots or open sectors, etc., which have an unobstructed passage enable certain light rays from the light source.
  • This variant is for example for suspended ceiling lights useful where the body and the reflector are on the top have a longitudinal slot through which the ceiling of is illuminated directly below, thereby creating a partially indirect To create lighting of the room.
  • the body 3 can be extruded from a transparent plastic become. Alternatively, the body 3 can be made accordingly profiled film are made, which around the Light source 2 partially or completely bent around it becomes. It is also possible to have several coaxial bodies 3 with each other surrounding or surrounding (adjacent or with play) use, so that cascading their effects, i. a Increasing the shading angle 13 results.
  • the light source 1 can also be other than circular Have cross section and need not be arranged coaxially to the body 3 be.
  • tubular body 3 is not only understood a cylindrical tubular body, but a generally tubular body, e.g. with elliptical profile, rounded square profile etc.
  • the body 3 can be different from that shown at the light source 1, i.e. the neighboring between the flanks 6, 7 Grooves 5 formed apex 14 lie on the outer surface the light source 1.
  • the body 3 can be made in one piece with the outer wall of the light source 1, for example as a sleeve for a fluorescent tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Eye Examination Apparatus (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Endoscopes (AREA)
EP98890139A 1998-04-29 1998-05-12 Dispositif de contrÔle de la lumière émise par une lampe allongée Withdrawn EP0953800A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP99917682A EP1073862B2 (fr) 1998-04-29 1999-04-29 Dispositif de guidage de lumiere pour source lumineuse oblongue
US09/673,780 US6400086B1 (en) 1998-04-29 1999-04-29 Light guiding device for an oblong light source
DK99917682T DK1073862T4 (da) 1998-04-29 1999-04-29 Anordning til lysstyring for en langstrakt lyskilde
DE59904630T DE59904630D1 (de) 1998-04-29 1999-04-29 Vorrichtung zur lichtführung für eine langgestreckte lichtquelle
AT99917682T ATE235019T1 (de) 1998-04-29 1999-04-29 Vorrichtung zur lichtführung für eine langgestreckte lichtquelle
NZ507603A NZ507603A (en) 1998-04-29 1999-04-29 Light guiding device for a fluorescent light source surmounted by a roof-like reflector
ES99917682T ES2195562T5 (es) 1998-04-29 1999-04-29 Dispositivo para la guia de luz para una fuente de luz extendida alargada.
PCT/AT1999/000107 WO1999056058A1 (fr) 1998-04-29 1999-04-29 Dispositif de guidage de lumiere pour source lumineuse oblongue
AU35886/99A AU755027B2 (en) 1998-04-29 1999-04-29 Light guiding device for an oblong light source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT28098U 1998-04-29
AT28098 1998-04-29

Publications (1)

Publication Number Publication Date
EP0953800A1 true EP0953800A1 (fr) 1999-11-03

Family

ID=3486349

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98890139A Withdrawn EP0953800A1 (fr) 1998-04-29 1998-05-12 Dispositif de contrÔle de la lumière émise par une lampe allongée
EP99917682A Expired - Lifetime EP1073862B2 (fr) 1998-04-29 1999-04-29 Dispositif de guidage de lumiere pour source lumineuse oblongue

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99917682A Expired - Lifetime EP1073862B2 (fr) 1998-04-29 1999-04-29 Dispositif de guidage de lumiere pour source lumineuse oblongue

Country Status (8)

Country Link
US (1) US6400086B1 (fr)
EP (2) EP0953800A1 (fr)
AT (1) ATE235019T1 (fr)
AU (1) AU755027B2 (fr)
DK (1) DK1073862T4 (fr)
ES (1) ES2195562T5 (fr)
NZ (1) NZ507603A (fr)
WO (1) WO1999056058A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071246A1 (fr) * 2000-03-20 2001-09-27 Bartenbach, Christian Dispositif de guidage de lumiere d'une source lumineuse oblongue

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658514B2 (en) * 2006-04-13 2010-02-09 Lg Electronics Inc. Light guide, method and apparatus for manufacturing the same, and illuminating system having the same
US9690029B2 (en) * 2013-01-30 2017-06-27 Cree, Inc. Optical waveguides and luminaires incorporating same
US9869432B2 (en) 2013-01-30 2018-01-16 Cree, Inc. Luminaires using waveguide bodies and optical elements
US9366396B2 (en) 2013-01-30 2016-06-14 Cree, Inc. Optical waveguide and lamp including same
US9442243B2 (en) 2013-01-30 2016-09-13 Cree, Inc. Waveguide bodies including redirection features and methods of producing same
US9291320B2 (en) 2013-01-30 2016-03-22 Cree, Inc. Consolidated troffer
US10436969B2 (en) 2013-01-30 2019-10-08 Ideal Industries Lighting Llc Optical waveguide and luminaire incorporating same
US9625638B2 (en) 2013-03-15 2017-04-18 Cree, Inc. Optical waveguide body
US10502899B2 (en) * 2013-03-15 2019-12-10 Ideal Industries Lighting Llc Outdoor and/or enclosed structure LED luminaire
US10400984B2 (en) 2013-03-15 2019-09-03 Cree, Inc. LED light fixture and unitary optic member therefor
US10209429B2 (en) 2013-03-15 2019-02-19 Cree, Inc. Luminaire with selectable luminous intensity pattern
US10379278B2 (en) * 2013-03-15 2019-08-13 Ideal Industries Lighting Llc Outdoor and/or enclosed structure LED luminaire outdoor and/or enclosed structure LED luminaire having outward illumination
US9366799B2 (en) 2013-03-15 2016-06-14 Cree, Inc. Optical waveguide bodies and luminaires utilizing same
US9798072B2 (en) 2013-03-15 2017-10-24 Cree, Inc. Optical element and method of forming an optical element
US9920901B2 (en) 2013-03-15 2018-03-20 Cree, Inc. LED lensing arrangement
US9645303B2 (en) 2013-03-15 2017-05-09 Cree, Inc. Luminaires utilizing edge coupling
US10436970B2 (en) 2013-03-15 2019-10-08 Ideal Industries Lighting Llc Shaped optical waveguide bodies
US11719882B2 (en) 2016-05-06 2023-08-08 Ideal Industries Lighting Llc Waveguide-based light sources with dynamic beam shaping
US10416377B2 (en) 2016-05-06 2019-09-17 Cree, Inc. Luminaire with controllable light emission
US10739513B2 (en) 2018-08-31 2020-08-11 RAB Lighting Inc. Apparatuses and methods for efficiently directing light toward and away from a mounting surface
US10801679B2 (en) 2018-10-08 2020-10-13 RAB Lighting Inc. Apparatuses and methods for assembling luminaires

Citations (3)

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Publication number Priority date Publication date Assignee Title
CH389538A (de) * 1961-08-29 1965-03-31 Belmag Beleuchtungs & Metallin Beleuchtungskörper mit Abschlussglas
FR2668838A1 (fr) * 1990-11-07 1992-05-07 Faure Pierre Dispositif a enceinte transparente munie d'une zone interne invisible de l'exterieur de l'enceinte.
EP0513713A2 (fr) * 1991-05-15 1992-11-19 AUGUST JORDAN GMBH & CO. Armature lumineuse à source lumineuse linéaire

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CH156501A (fr) † 1930-08-25 1932-08-15 Works Corning Glass Lentille à dispersion pour projecteurs.
CH289538A (de) * 1949-10-22 1953-03-15 Rheinpreussen Ag Verfahren zur Herstellung des Diäthylaminoäthylesters der 4-Amino-2-oxy-benzoesäure.
DE875938C (de) † 1951-09-29 1953-05-07 Fritz Schnebel Vorrichtung zum Abblenden von Lichtquellen
GB953813A (en) † 1962-03-15 1964-04-02 Gen Electric Co Ltd Improvements relating to lighting fittings and to refractors for use in such fittings
GB1372024A (en) * 1970-10-07 1974-10-30 Oram J A Lighting device
US4188657A (en) * 1973-07-13 1980-02-12 Whiteway Manufacturing Co., Inc. Reflector and method of producing different, distinctive and predictable light patterns therefrom
DE7808786U1 (de) † 1977-03-29 1978-07-13 Zumtobel Ag, Dornbirn (Oesterreich) Abdeckung aus lichtdurchlaessigem material fuer leuchtstofflampen
US5183323A (en) * 1982-09-29 1993-02-02 Maurice Daniel Flat panel illumination system
CH664817A5 (de) † 1984-10-17 1988-03-31 Peter A Balla Beleuchtung fuer geschlossene laengliche raeume.
US5199787A (en) * 1992-01-08 1993-04-06 North American Philips Corporation Reflector lamp having improved lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH389538A (de) * 1961-08-29 1965-03-31 Belmag Beleuchtungs & Metallin Beleuchtungskörper mit Abschlussglas
FR2668838A1 (fr) * 1990-11-07 1992-05-07 Faure Pierre Dispositif a enceinte transparente munie d'une zone interne invisible de l'exterieur de l'enceinte.
EP0513713A2 (fr) * 1991-05-15 1992-11-19 AUGUST JORDAN GMBH & CO. Armature lumineuse à source lumineuse linéaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071246A1 (fr) * 2000-03-20 2001-09-27 Bartenbach, Christian Dispositif de guidage de lumiere d'une source lumineuse oblongue

Also Published As

Publication number Publication date
DK1073862T3 (da) 2003-06-23
AU3588699A (en) 1999-11-16
EP1073862B2 (fr) 2007-03-14
NZ507603A (en) 2002-05-31
ES2195562T5 (es) 2007-11-01
EP1073862B1 (fr) 2003-03-19
DK1073862T4 (da) 2007-07-16
AU755027B2 (en) 2002-11-28
ES2195562T3 (es) 2003-12-01
WO1999056058A1 (fr) 1999-11-04
EP1073862A1 (fr) 2001-02-07
US6400086B1 (en) 2002-06-04
ATE235019T1 (de) 2003-04-15

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