WO2001065171A2 - Reflector arrangement for a lamp - Google Patents
Reflector arrangement for a lamp Download PDFInfo
- Publication number
- WO2001065171A2 WO2001065171A2 PCT/EP2001/002244 EP0102244W WO0165171A2 WO 2001065171 A2 WO2001065171 A2 WO 2001065171A2 EP 0102244 W EP0102244 W EP 0102244W WO 0165171 A2 WO0165171 A2 WO 0165171A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lamp
- reflector
- longitudinal direction
- reflector arrangement
- arrangement according
- Prior art date
Links
- 241000446313 Lamella Species 0.000 claims abstract description 9
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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
- F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
-
- 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
-
- 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
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
Definitions
- the invention relates to a reflector arrangement for a luminaire with at least one elongated lamp, a longitudinal reflector extending in the longitudinal direction of the lamp and a plurality of spaced, reflecting transverse lamellae being provided transversely to the longitudinal direction of the lamp, which - seen in the longitudinal direction - on the side (s) facing the lamp (s) have a lowered area in the middle.
- Such reflector arrangements are used to optimize and suppress the light distribution of elongated lamps, in particular fluorescent tubes.
- US Pat. No. 5,758,954 and US Pat. No. 5,528,478 show such reflector arrangements, which are also referred to as mirror grids.
- the object of the invention is to provide an improved reflector arrangement of the type mentioned which, without additional adaptation of the reflector shape, gives a reasonable light distribution both when fitted with one lamp and with a plurality of lamps.
- the reflector arrangement should be used without changing a large part of the reflector shape either as a purely directly radiating lamp or partly directly, partly indirectly radiating lamp.
- the transverse lamella has an essentially flat, reflecting central part lying parallel to the outlet opening of the reflector arrangement.
- the essentially flat, reflecting central part of the transverse lamellae creates enough space to allow both a single-lamp and a two-lamp version of the lamp.
- a single fluorescent tube will be attached centrally to the flashy version.
- two spaced elongated Larpen in particular fluorescent tubes, are used.
- the longitudinal reflector has two different parabolic sections in a cross section perpendicular to the longitudinal direction of the lamp.
- This feature makes it possible to achieve a light distribution which is centrally located below the main outlet opening of the reflector arrangement, with a large proportion of this light intensity not originating from the uppermost area of the long reflector.
- the light distribution below the luminaire is only slightly influenced in relation to a long reflector closed at the top, so that the luminaire or the reflector arrangement simply as a purely direct light (long reflector closed at the top) or can be used as a direct / indirect light (long reflector open at the top) without the lower one having the two parabolic sections Long reflector and without having to change the cross slats.
- FIG. 1 shows an exemplary embodiment of a reflector arrangement according to the invention in a schematic perspective view
- FIG. 2 shows a schematic cross section through a further exemplary embodiment of a reflector arrangement according to the invention perpendicular to the lamp axis
- 4a - show, in a cross section perpendicular to the 4d lamp axis, direct / indirect radiating or purely direct radiating versions with both flame and double-flame lamps,
- FIG. 5 shows the boundary radiation diagram of a reflector arrangement according to the invention with a flammable configuration in a direct / m direct emitting embodiment.
- 1 shows an exemplary embodiment of a reflector arrangement according to the invention for a lamp with at least one elongated light source 1, for example a fluorescent tube.
- elongated light source for example a fluorescent tube.
- the lower area, ie below the elongated lamp 1 there are a plurality of spaced, reflecting transverse lamellae 4 which are oriented transversely to the lamp longitudinal direction.
- the transverse lamellae 4 as seen in the lamp longitudinal direction, have a lowered region 5 in the center on the side facing the lamp 1.
- the lowered region 5 of the transverse lamellae 4 has a substantially flat reflecting central part 6 lying parallel to the outlet opening 2.
- the transverse lamella 4 adjoins the flat central part 6] on both sides at an acute angle ⁇ 2 reflecting and itself preferably flat inclined surfaces 7.
- the angle ⁇ 2 is favorably between 20 ° and 30 °.
- FIG. 2 double-flame configuration shown in dashed lines
- FIGS. 4a and 4b double-flame configuration shown in dashed lines
- FIGS. 4c and 4d on the other hand
- FIG. 2 double-flame configuration shown in dashed lines
- FIGS. 4c and 4d double-flame configuration shown in dashed lines
- FIGS. 4c and 4d on the other hand
- the reflector arrangement according to the invention is described in more detail using an exemplary embodiment.
- the elongated lamp 1 has a diameter D and is arranged centrally when the lamp is fitted.
- the transverse lamella 4 has a flat central part 6, to which inclined surfaces 7 connect at the angle ⁇ 2.
- the middle part 6 and the inclined surfaces 7 are designed as flat mirrored surfaces. This can be seen in the central longitudinal section of FIG.
- FIG. 3 which shows that the transverse lamellae have two parabolically concave side surfaces 8 which converge to a point.
- preferred dimensional information based on the lamp diameter D is given in FIG. 3.
- the ratio of the lamella height of the transverse lamellae to the lamella spacing of the transverse lamellae determines the blanking angle ß m in the longitudinal direction of the lamp.
- the blanking angle is denoted by ⁇ l.
- the longitudinal reflector 3 has, in a cross section perpendicular to the longitudinal direction of the lamp (FIG. 2), two different parabolic sections P1 and P2, each symmetrical to the longitudinal median plane 9.
- the parabolic section P1 extends from the lower edge AI of the reflector arrangement (lateral end of the outlet opening 2) up to the point A2, which lies at the height of the flat central part 6 of the transverse slats.
- the second parabola section P2 extends from this point A2 to point A4.
- the axes a1 and a2 of the two parabolic sections P1 and P2 run parallel to one another at a distance, to be precise under the blanking angle ⁇ 1, which is preferably greater than the angle of inclination ⁇ 2 of the inclined surfaces 7.
- the focal points Fl un ⁇ F2 of the parabolic sections? 1 and P2 lie exactly on the lateral edge of the flat central part 6 of the transverse lamellae 4
- FIG. 5 shows a boundary radiation diagram, with such an embodiment a light distribution with a high central portion is achieved, even if the longitudinal reflector 3 is open at the top for the purpose of creating indirect lighting.
- parabolic-shaped additional reflector sections P3 are provided. These range in Fig. 2 from point A2 to point A5 or A5 *.
- the alignment of these parabolic sections P 3 is such that their axis A3 runs at the angle ⁇ 3 to the horizontal, the axis containing the upper end point A5 or A5 'of the entire reflector arrangement and the imaginary tangential intersection with the lamp in the case of two-lamp equipment. This intersection F3 also forms the focal point of the parabola P3.
- the reflector arrangement can simply be closed at the top by an involute-shaped reflector section E. 4a to 4d show that one can make a mt 1 lamp or two lamps 1 'with the same transverse lamellae and essentially the same Langsre lector 3.
- the lamp can be closed at the top or open at the top his.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL01357189A PL357189A1 (en) | 2000-02-29 | 2001-02-28 | Reflector arrangement for a lamp |
HU0204206A HUP0204206A2 (en) | 2000-02-29 | 2001-02-28 | Reflector arrangement for a lamp |
EP01929372A EP1259756A2 (en) | 2000-02-29 | 2001-02-28 | Reflector arrangement for a lamp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT3132000 | 2000-02-29 | ||
ATA313/2000 | 2000-02-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001065171A2 true WO2001065171A2 (en) | 2001-09-07 |
WO2001065171A3 WO2001065171A3 (en) | 2002-02-28 |
Family
ID=3671387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/002244 WO2001065171A2 (en) | 2000-02-29 | 2001-02-28 | Reflector arrangement for a lamp |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1259756A2 (en) |
HU (1) | HUP0204206A2 (en) |
PL (1) | PL357189A1 (en) |
WO (1) | WO2001065171A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005090854A1 (en) * | 2004-03-12 | 2005-09-29 | Honeywell International Inc. | Luminaires for artificial lighting |
WO2005103558A1 (en) * | 2004-04-19 | 2005-11-03 | Honeywell International Inc. | Luminaires with batwing light distribution |
WO2006098765A1 (en) * | 2005-03-14 | 2006-09-21 | Honeywell International Inc. | Low profile direct/indirect luminaires |
US7195374B2 (en) | 2004-03-12 | 2007-03-27 | Honeywell International, Inc. | Luminaires for artificial lighting |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5528478A (en) | 1995-10-04 | 1996-06-18 | Cooper Industries, Inc. | Lighting fixture having a parabolic louver |
US5758954A (en) | 1995-02-14 | 1998-06-02 | U.S. Philips Corporation | Luminaire |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8106507U1 (en) * | 1981-03-07 | 1981-08-27 | Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg | "LUMINAIRE WITH A LONG ELASTIC LAMP AND A MIRROR GRID BELOW IT" |
DE3112253A1 (en) * | 1981-03-27 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | PENDANT LAMP |
DE3246547C2 (en) * | 1982-12-16 | 1986-07-10 | Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg | lamp |
AT381577B (en) * | 1983-04-08 | 1986-11-10 | Bartenbach Christian | GLARE-FREE LAMP FOR A ROD-SHAPED LIGHT SOURCE |
US4494175A (en) * | 1984-01-09 | 1985-01-15 | Gte Products Corporation | Recessed lighting fixture with improved louver mounting |
US4888668A (en) * | 1987-09-28 | 1989-12-19 | Siemens Aktiengesellschaft | Mirror light unit |
IT1238880B (en) * | 1990-02-16 | 1993-09-04 | Targetti Sankey Spa | MIXED PROFILE OPTICAL REFLECTOR FOR LIGHTING. |
DE19916601C2 (en) * | 1999-04-13 | 2002-08-01 | Siteco Beleuchtungstech Gmbh | Slat, luminaire grid for glare control and luminaire |
-
2001
- 2001-02-28 WO PCT/EP2001/002244 patent/WO2001065171A2/en not_active Application Discontinuation
- 2001-02-28 HU HU0204206A patent/HUP0204206A2/en unknown
- 2001-02-28 PL PL01357189A patent/PL357189A1/en unknown
- 2001-02-28 EP EP01929372A patent/EP1259756A2/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5758954A (en) | 1995-02-14 | 1998-06-02 | U.S. Philips Corporation | Luminaire |
US5528478A (en) | 1995-10-04 | 1996-06-18 | Cooper Industries, Inc. | Lighting fixture having a parabolic louver |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005090854A1 (en) * | 2004-03-12 | 2005-09-29 | Honeywell International Inc. | Luminaires for artificial lighting |
US7195374B2 (en) | 2004-03-12 | 2007-03-27 | Honeywell International, Inc. | Luminaires for artificial lighting |
US7258467B2 (en) | 2004-03-12 | 2007-08-21 | Honeywell International, Inc. | Low profile direct/indirect luminaires |
WO2005103558A1 (en) * | 2004-04-19 | 2005-11-03 | Honeywell International Inc. | Luminaires with batwing light distribution |
WO2006098765A1 (en) * | 2005-03-14 | 2006-09-21 | Honeywell International Inc. | Low profile direct/indirect luminaires |
Also Published As
Publication number | Publication date |
---|---|
WO2001065171A3 (en) | 2002-02-28 |
PL357189A1 (en) | 2004-07-26 |
HUP0204206A2 (en) | 2003-04-28 |
EP1259756A2 (en) | 2002-11-27 |
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