EP0768492B1 - Breitstrahlende Indirektleuchte - Google Patents
Breitstrahlende Indirektleuchte Download PDFInfo
- Publication number
- EP0768492B1 EP0768492B1 EP96114285A EP96114285A EP0768492B1 EP 0768492 B1 EP0768492 B1 EP 0768492B1 EP 96114285 A EP96114285 A EP 96114285A EP 96114285 A EP96114285 A EP 96114285A EP 0768492 B1 EP0768492 B1 EP 0768492B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- luminaire
- centre plane
- indirect
- housing
- luminaire housing
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- 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
- F21V7/0008—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
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Definitions
- the invention relates to a wide-beam indirect light according to the preamble of claim 1.
- the invention is a luminaire of the aforementioned Art be improved so that on the one hand too strong Luminance on the ceiling immediately above the luminaire on the other hand, the greater part of the radiated light sideways and obliquely upward is radiated to a good and uniform illumination to achieve the space.
- additional reflector becomes a part of the inside directed light emission of the fluorescent tubes upwards deflected, resulting in a more uniform illumination of the located directly above the luminaire housing Ceiling area is reached.
- Luminaire housing 14 Since the distance A from the ceiling 10 to the lower edge 12 of Luminaire housing 14 according to Figure 1 from the above The reasons should be as small as possible, this is proportionate flat luminaire housing 14 by means of a short lamp shaft 16 and an approximately conical ceiling rosette 18 in short distance from the ceiling 10 attached.
- the lower part 20 the lamp housing 14 is curved slightly convex downward and is made of opaque material, however e.g. in the form of a perforated plate or by means of other breakthroughs Optionally let more or less light down can.
- each in upwardly bent portions 22nd At the upper ends of the obliquely upwards and inwards Sections 22 may be a well-translucent top Connect 24 of the light housing 14 in an advantageous manner.
- the luminaire housing 14 is symmetrical to one in the direction the longitudinal extension of the lamp housing 14 extending vertical center plane 26 is formed. At equal intervals from the median plane 26 and at the same height above the Lower part 20, i. approximately at the height of the bent sections 22 of the lamp housing 14, one is parallel to the Midplane 26 extending arc tube 28 is arranged. Above each arc tube is each a substantially strip-shaped, flat down concave curved reflector 30 attached, the lower edge at a location 32 at the top Half of the luminous tube circumference approximately rests or in low Distance from the same is arranged. In the illustrated Embodiment is this point 32 from the apex line 34th each arc tube 28 shifted to the center plane 26 out.
- each reflector 30 On his remote from the respective associated arc tube 28 At the end, each reflector 30 has a stiffener in it Serving in the longitudinal direction, pointing obliquely outwards and downwards Bend 36 on.
- the relatively flat reflectors 30 are upwardly and inwardly, i. towards the median plane 26, slightly convex and slightly concave curved outwards and downwards.
- each inclined obliquely upwards and inwards level reflector surface 40 forms, with the respective opposite reflector 30 an upwardly flared includes acute angle. This angle goes here from the mean inclination of the vertical section of the reflector 30 regardless of its curvature. Every level Reflector surface 40 has at its lower edge to the Center plane 26 pointing towards bending 42.
- Each reflector 30 serves essentially to that of the Incandescent tube 28 outgoing light for the most part in one indicated by dashed lines, obliquely laterally to direct the above-pointing angle range B.
- the lower limit 44 of the angular range B is thereby through the upper edge of the bent portion 22 determines while the upper limit 46 is determined by the outer edge of the bend 36.
- the outer boundary 48 of the angular range C is determined by the convexly curved inner side of the reflector 30, while the outer limit 50 is determined by the reflection surface 40 of the reflector 38.
- the remaining light of the fluorescent tubes 28 goes down the inner surface of the lower part 20 of the lamp housing 14. Es is reflected from here also partly upwards and on the other hand, to a small extent, down, e.g. through holes in a perforated plate or the like, from.
- the bends 42 of the central auxiliary reflector 38 are used for more uniform lightening of the lower part 20 to one to achieve uniform brightness effect, if one uses the Luminaire viewed from below.
- the lamp shown in Figure 1 is in its short Suspension on the ceiling 10 in approximate relation to Room height shown, while in Figure 3 in their arrangement on a standing on the floor 13 high stand 17 with Stand 15 is shown.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Luminescent Compositions (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Colloid Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Laser Surgery Devices (AREA)
Description
- Fig.1
- einen schematischen Schnitt senkrecht zur Längserstreckung der an einer Raumdecke kurz abgehängten Indirektleuchte gemäß der Erfindung,
- Fig.2
- eine verkleinerte Darstellung der Leuchte gemäß Fig.1, und
- Fig.3
- die auf einem hohen Ständer nahe der Raumdecke angebrachte Leuchte gemäß Fig.1 ohne die der Aufhängung dienenden Teile.
Claims (9)
- Breitstrahlende Indirektleuchte mit einem langgestreckten, symmetrisch zu einer vertikalen Mittelebene (26) verlaufenden, den Lichtaustritt nach unten wenigstens größtenteils abschirmenden Leuchtengehäuse (14), zwei in demselben in gleichem Abstand zu beiden Seiten der Mittelebene (26) angeordneten Leuchtröhren (28) und mindestens je einem im Leuchtengehäuse (14) zwischen der Mittelebene (26) und der Leuchtröhre (28) parallel zu dieser angeordneten Reflektor (30),
dadurch gekennzeichnet, daß im Bereich zwischen den beiden Reflektoren (30) und den beiden Leuchtröhren (28) ein symmetrisch zur Mittelebene (26) des Leuchtengehäuses (14) angeordneter Zusatzreflektor (38) vorgesehen ist, der wenigstens zwei, jeweils mit einem der Reflektoren (30) einen sich nach oben erweiternden spitzen Winkel (C) einschließende ebene Reflexionsflächen (40) aufweist. - Indirektleuchte nach Anspruch 1,
dadurch gekennzeichnet, daß jede Reflexionsfläche (40) an ihrem unteren Ende eine zur Mittelebene (26) des Leuchtengehäuses (14) hinweisende Abwinkelung (42) aufweist. - Indirektleuchte nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß das Leuchtengehäuse (14) einen Unterteil (20) aufweist, der nach unten leicht konvex gekrümmt ist und aus durchbrochenem, teilweise lichtdurchlässigem Material besteht, daß die Reflektoren (30) zur Mittelebene (26) des Leuchtengehäuses (14) hin konvex und auf der entgegengesetzten Seite entsprechend konkav gekrümmt sind und jeweils von einer Stelle (32) an der oberen Hälfte des Umfangs der zugehörigen Leuchtröhre (28) schräg nach oben von der Mittelebene (26) weg leicht geneigt verlaufen, während das Licht der Leuchtröhren (28) nach unten unmittelbar auf die Innenfläche des Unterteils (20) des Leuchtengehäuses (14) auftrifft. - Indirektleuchte nach Anspruch 3,
dadurch gekennzeichnet, daß die Stelle (32) an der oberen Hälfte des Umfangs der Leuchtröhre (28) von der Scheitellinie (34) desselben zur Mittelebene (26) des Leuchtengehäuses (14) hin verschoben ist. - Indirektleuchte nach Anspruch 3 oder 4,
dadurch gekennzeichnet, daß jeder Reflektor (30) an seinem von der zugehörigen Leuchtröhre (28) abgelegenen Ende eine von der Mittelebene (26) des Leuchtengehäuses (14) wegweisende Abwinklung (36) aufweist. - Indirektleuchte nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, daß die Innenseite des Leuchtengehäuses (14) im Reflexionsbereich (52) jedes Reflektors (30) reflexionsarm ausgebildet ist. - Indirektleuchte nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, daß das Leuchtengehäuse (14) einen lichtdurchlässigen Oberteil (24) aufweist. - Indirektleuchte nach einem der vorangehenden Ansprüche,
gekennzeichnet durch einen nach oben ragenden Leuchtenschaft (16) zur Aufhängung an einer Raumdecke (10). - Indirektleuchte nach einem der Ansprüche 1-7,
gekennzeichnet durch einen das Leuchtengehäuse (14) tragenden Ständer (17) mit einem auf dem Boden aufliegenden Standfuß (15).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19537685A DE19537685C1 (de) | 1995-10-10 | 1995-10-10 | Breitstrahlende Indirektleuchte |
DE19537685 | 1995-10-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0768492A1 EP0768492A1 (de) | 1997-04-16 |
EP0768492B1 true EP0768492B1 (de) | 2003-01-08 |
Family
ID=7774474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96114285A Expired - Lifetime EP0768492B1 (de) | 1995-10-10 | 1996-09-06 | Breitstrahlende Indirektleuchte |
Country Status (10)
Country | Link |
---|---|
US (1) | US5823656A (de) |
EP (1) | EP0768492B1 (de) |
JP (1) | JPH09115319A (de) |
AT (1) | ATE230839T1 (de) |
CZ (1) | CZ289619B6 (de) |
DE (2) | DE19537685C1 (de) |
DK (1) | DK0768492T3 (de) |
NO (1) | NO317321B1 (de) |
PL (1) | PL180394B1 (de) |
ZA (1) | ZA968394B (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19822305C1 (de) * | 1998-05-18 | 1999-12-02 | Waldmann Gmbh & Co Herbert | Breitstrahlende Indirektleuchte |
US6186642B1 (en) * | 1999-03-12 | 2001-02-13 | Steelcase Inc. | On-site fabricated linear ambient lighting system |
US6305816B1 (en) | 1999-03-12 | 2001-10-23 | Steelcase Development Corporation | On-site fabricated linear ambient lighting system |
US6729741B1 (en) | 1999-05-13 | 2004-05-04 | Trevor James Murray | Light fittings |
US6505953B1 (en) | 2000-04-06 | 2003-01-14 | Genlyte Thomas Group Llc | Luminaire optical system |
US6837592B1 (en) | 2000-04-06 | 2005-01-04 | Genlyte Thomas Group, Llc | Indirect luminaire optical system |
KR20030017090A (ko) * | 2001-08-23 | 2003-03-03 | 강성지 | 가로등 |
US6644830B2 (en) | 2001-12-03 | 2003-11-11 | Cooper Technologies Company | High output lamp softener |
DE20321833U1 (de) * | 2003-08-05 | 2010-11-25 | Grimm, Manfred | Pendelleuchte |
US8002446B1 (en) | 2008-06-09 | 2011-08-23 | Koninklijke Philips Electronics N.V. | Virtual direct and indirect suspended lighting fixture |
CN101994933B (zh) * | 2009-08-14 | 2013-01-09 | 鸿富锦精密工业(深圳)有限公司 | 照明装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA641632A (en) * | 1962-05-22 | P. Foulds John | Luminaire | |
CA602537A (en) * | 1960-07-26 | E. Barnhouse John | Lighting fixture | |
DE7414939U (de) * | 1974-10-03 | Licentia Gmbh | ||
CH193757A (fr) * | 1937-01-26 | 1937-10-31 | Jacob Henri | Lampe. |
US2306700A (en) * | 1940-08-03 | 1942-12-29 | Curtis Lighting Inc | Lighting fixture |
US2312618A (en) * | 1940-11-16 | 1943-03-02 | Morris B Beck | Fluorescent tube lighting fixture |
US2759094A (en) * | 1953-12-28 | 1956-08-14 | Sylvania Electric Prod | Lighting and sound absorbing fixture |
DE3644335C2 (de) * | 1986-12-23 | 1998-07-02 | Hartmut S Engel | Systemleuchte zur Erzeugung lichtbandartiger Leuchtstrukturen |
US4866584A (en) * | 1988-05-27 | 1989-09-12 | Columbia Lighting, Inc. | Indirect luminaire |
DE8908742U1 (de) * | 1989-07-14 | 1989-09-07 | Peuker, Alfred, 1000 Berlin | Deckenleuchte |
US5075827A (en) * | 1990-10-31 | 1991-12-24 | Smith David H | Indirect light fixture amplification reflector system |
US5276597A (en) * | 1991-06-11 | 1994-01-04 | Peerless Lighting Corporation | Configurable furniture integrated ambient lighting system and method |
-
1995
- 1995-10-10 DE DE19537685A patent/DE19537685C1/de not_active Expired - Fee Related
-
1996
- 1996-09-06 DK DK96114285T patent/DK0768492T3/da active
- 1996-09-06 DE DE59610039T patent/DE59610039D1/de not_active Expired - Lifetime
- 1996-09-06 AT AT96114285T patent/ATE230839T1/de active
- 1996-09-06 EP EP96114285A patent/EP0768492B1/de not_active Expired - Lifetime
- 1996-09-30 JP JP8258211A patent/JPH09115319A/ja active Pending
- 1996-10-02 CZ CZ19962894A patent/CZ289619B6/cs not_active IP Right Cessation
- 1996-10-04 ZA ZA968394A patent/ZA968394B/xx unknown
- 1996-10-08 NO NO19964270A patent/NO317321B1/no not_active IP Right Cessation
- 1996-10-09 US US08/731,080 patent/US5823656A/en not_active Expired - Lifetime
- 1996-10-10 PL PL96316474A patent/PL180394B1/pl not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PL180394B1 (pl) | 2001-01-31 |
DK0768492T3 (da) | 2003-04-22 |
NO964270L (no) | 1997-04-11 |
ZA968394B (en) | 1997-05-13 |
NO964270D0 (no) | 1996-10-08 |
PL316474A1 (en) | 1997-04-14 |
DE19537685C1 (de) | 1997-03-13 |
ATE230839T1 (de) | 2003-01-15 |
CZ289619B6 (cs) | 2002-03-13 |
US5823656A (en) | 1998-10-20 |
NO317321B1 (no) | 2004-10-11 |
JPH09115319A (ja) | 1997-05-02 |
DE59610039D1 (de) | 2003-02-13 |
EP0768492A1 (de) | 1997-04-16 |
CZ289496A3 (en) | 1997-09-17 |
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