EP0768492A1 - Appareil d'éclairage indirect à faisceau large - Google Patents

Appareil d'éclairage indirect à faisceau large Download PDF

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Publication number
EP0768492A1
EP0768492A1 EP96114285A EP96114285A EP0768492A1 EP 0768492 A1 EP0768492 A1 EP 0768492A1 EP 96114285 A EP96114285 A EP 96114285A EP 96114285 A EP96114285 A EP 96114285A EP 0768492 A1 EP0768492 A1 EP 0768492A1
Authority
EP
European Patent Office
Prior art keywords
indirect
central plane
luminaire
reflector
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.)
Granted
Application number
EP96114285A
Other languages
German (de)
English (en)
Other versions
EP0768492B1 (fr
Inventor
Gerhard Waldmann
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.)
Herbert Waldmann GmbH and Co KG
Original Assignee
Herbert Waldmann GmbH and Co KG
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 Herbert Waldmann GmbH and Co KG filed Critical Herbert Waldmann GmbH and Co KG
Publication of EP0768492A1 publication Critical patent/EP0768492A1/fr
Application granted granted Critical
Publication of EP0768492B1 publication Critical patent/EP0768492B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 therefore intended to improve a luminaire of the type mentioned at the outset in such a way that on the one hand excessive luminance on the ceiling directly above the luminaire is avoided, and on the other hand the greater part of the emitted light is emitted laterally and obliquely upwards in order to achieve a good and to achieve uniform illumination of the room.
  • the greater part of the light radiation is deflected laterally upwards in a large angular range, while only the light component emerging upwards on the inner side of the reflectors towards the central plane of the luminaire housing is directly above the Illuminated ceiling area illuminated in a suitable strength.
  • the relatively flat lamp housing 14 is by means of a short lamp shaft 16 and an approximately conical ceiling rose 18 at a short distance from the Ceiling 10 attached.
  • the lower part 20 of the lamp housing 14 is curved slightly convex downwards and consists of an opaque material, which, however, e.g. in the form of a perforated plate or by means of other breakthroughs can optionally let more or less light down.
  • the lower part 20 ends in sections 22 which are bent upwards.
  • a well translucent upper part 24 of the lamp housing 14 can advantageously be connected to the upper ends of the sections 22 which are inclined upwards and inwards.
  • the luminaire housing 14 is formed symmetrically to a vertical central plane 26 which extends in the direction of the longitudinal extent of the luminaire housing 14.
  • a fluorescent tube 28 running parallel to the central plane 26 is arranged.
  • a substantially strip-shaped reflector 30 with a flat downward concavity is attached above each fluorescent tube, the lower edge of which rests approximately at a point 32 on the upper half of the circumference of the fluorescent tube or to a small extent Distance from the same is arranged. In the embodiment shown, this point 32 is displaced from the apex line 34 of each tube 28 to the central plane 26.
  • each reflector 30 has an angled portion 36 which serves to stiffen it in the longitudinal direction and points obliquely outwards and downwards.
  • the relatively flat reflectors 30 are slightly convex upwards and inwards, ie towards the central plane 26 and slightly concave outwards and downwards.
  • an additional reflector 38 is provided which is arranged symmetrically with respect to the central plane 26 and which forms an obliquely upward and inward inclined plane reflector surface 40 on both sides of the central plane 26, which coincides with the respective opposite reflector 30 includes an upward widening acute angle. This angle is based on the average inclination of the vertical section of the reflector 30 without taking into account its curvature.
  • Each flat reflector surface 40 has at its lower edge an angled portion 42 pointing towards the central plane 26.
  • Each reflector 30 essentially serves to direct the light emanating from the light tube 28 for the most part into an angular region B, indicated by dashed lines and pointing obliquely upwards to the side.
  • the lower limit 44 of the angular range B is determined by the upper edge of the bent section 22, 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 inside of the reflector 30, while the outer boundary 50 is determined by the reflective surface 40 of the reflector 38.
  • the rest of the light from the fluorescent tubes 28 goes down onto the inner surface of the lower part 20 of the lamp housing 14. It is also partly reflected upwards from here and on the other hand comes down to a small part, e.g. through holes in a perforated plate or the like.
  • the bends 42 of the central additional reflector 38 serve to illuminate the lower part 20 more uniformly in order to achieve a uniform brightness effect when the lamp is viewed from below.
  • an area 52 of the inner surface of the lamp housing 14 (visible reflection area of the reflector 30 in viewing direction D) can be designed with less reflection.
  • the lamp shown in FIG. 1 is shown in its short suspension on the ceiling 10 in an approximate relationship to the room height, while in FIG is.

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)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Laser Surgery Devices (AREA)
  • Colloid Chemistry (AREA)
EP96114285A 1995-10-10 1996-09-06 Appareil d'éclairage indirect à faisceau large Expired - Lifetime EP0768492B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537685 1995-10-10
DE19537685A DE19537685C1 (de) 1995-10-10 1995-10-10 Breitstrahlende Indirektleuchte

Publications (2)

Publication Number Publication Date
EP0768492A1 true EP0768492A1 (fr) 1997-04-16
EP0768492B1 EP0768492B1 (fr) 2003-01-08

Family

ID=7774474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114285A Expired - Lifetime EP0768492B1 (fr) 1995-10-10 1996-09-06 Appareil d'éclairage indirect à faisceau large

Country Status (10)

Country Link
US (1) US5823656A (fr)
EP (1) EP0768492B1 (fr)
JP (1) JPH09115319A (fr)
AT (1) ATE230839T1 (fr)
CZ (1) CZ289619B6 (fr)
DE (2) DE19537685C1 (fr)
DK (1) DK0768492T3 (fr)
NO (1) NO317321B1 (fr)
PL (1) PL180394B1 (fr)
ZA (1) ZA968394B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
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
US6837592B1 (en) 2000-04-06 2005-01-04 Genlyte Thomas Group, Llc Indirect luminaire optical system
US6505953B1 (en) 2000-04-06 2003-01-14 Genlyte Thomas Group Llc 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312618A (en) * 1940-11-16 1943-03-02 Morris B Beck Fluorescent tube lighting fixture
US4866584A (en) * 1988-05-27 1989-09-12 Columbia Lighting, Inc. Indirect luminaire
US5075827A (en) * 1990-10-31 1991-12-24 Smith David H Indirect light fixture amplification reflector system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA641632A (en) * 1962-05-22 P. Foulds John Luminaire
DE7414939U (fr) * 1974-10-03 Licentia Gmbh
CA602537A (en) * 1960-07-26 E. Barnhouse John Lighting fixture
CH193757A (fr) * 1937-01-26 1937-10-31 Jacob Henri Lampe.
US2306700A (en) * 1940-08-03 1942-12-29 Curtis Lighting Inc 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
DE8908742U1 (fr) * 1989-07-14 1989-09-07 Peuker, Alfred, 1000 Berlin, De
US5276597A (en) * 1991-06-11 1994-01-04 Peerless Lighting Corporation Configurable furniture integrated ambient lighting system and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312618A (en) * 1940-11-16 1943-03-02 Morris B Beck Fluorescent tube lighting fixture
US4866584A (en) * 1988-05-27 1989-09-12 Columbia Lighting, Inc. Indirect luminaire
US5075827A (en) * 1990-10-31 1991-12-24 Smith David H Indirect light fixture amplification reflector system

Also Published As

Publication number Publication date
DE19537685C1 (de) 1997-03-13
ZA968394B (en) 1997-05-13
NO964270L (no) 1997-04-11
US5823656A (en) 1998-10-20
ATE230839T1 (de) 2003-01-15
CZ289619B6 (cs) 2002-03-13
NO964270D0 (no) 1996-10-08
DK0768492T3 (da) 2003-04-22
PL180394B1 (pl) 2001-01-31
PL316474A1 (en) 1997-04-14
CZ289496A3 (en) 1997-09-17
EP0768492B1 (fr) 2003-01-08
DE59610039D1 (de) 2003-02-13
JPH09115319A (ja) 1997-05-02
NO317321B1 (no) 2004-10-11

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