EP0959294B1 - Breitstrahlende Indirektleuchte - Google Patents

Breitstrahlende Indirektleuchte Download PDF

Info

Publication number
EP0959294B1
EP0959294B1 EP99107617A EP99107617A EP0959294B1 EP 0959294 B1 EP0959294 B1 EP 0959294B1 EP 99107617 A EP99107617 A EP 99107617A EP 99107617 A EP99107617 A EP 99107617A EP 0959294 B1 EP0959294 B1 EP 0959294B1
Authority
EP
European Patent Office
Prior art keywords
reflector
centre plane
section
centre
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
Application number
EP99107617A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0959294A2 (de
EP0959294A3 (de
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 EP0959294A2 publication Critical patent/EP0959294A2/de
Publication of EP0959294A3 publication Critical patent/EP0959294A3/de
Application granted granted Critical
Publication of EP0959294B1 publication Critical patent/EP0959294B1/de
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
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing

Definitions

  • the invention relates to a wide-beam indirect light according to the preamble of claim 1.
  • the invention is therefore a luminaire of the type mentioned to be improved so that even with fluorescent tubes with a smaller diameter, a good and uniform illumination of the room while avoiding excessive luminance on the ceiling can be achieved directly above the lamp.
  • the relatively flat light housing 14 by means of a short lamp shaft 16 and an approximately conical ceiling rosette 18 is mounted at a short distance from the ceiling 10.
  • the luminaire housing 14 is slightly convexly curved downwards and is made of translucent material, however, e.g. in the form of perforated metal sheet, mesh fabric, grid mesh, frosted glass or by means of other perforated material optionally more or less light can pass down.
  • At the side edges of the lamp housing 14 ends the same in each case bent-over portions 22. Upward, the lamp housing 14 is open.
  • the luminaire housing 14 is formed symmetrically to a vertical center plane 26 extending in the direction of the longitudinal extent of the luminaire housing 14. At equal distances from the median plane 26 and at the same height above the housing 14, ie, approximately at the height of the bent portions 22 of the lamp housing 14, one is parallel to the median plane 26 extending arc tube 28 is arranged.
  • each arc tube 28 there is arranged a high-gloss reflector consisting of perforated sheet, which is designated generally by 30.
  • a first approximately vertical portion 32 abuts against the middle plane 26 facing side of the associated arc tube 28 and protrudes slightly above the same.
  • a second approximately horizontal portion 34 of the reflector 30 whose length corresponds approximately to the diameter of the arc tube 28.
  • the second portion 34 then passes into a third, away from the median plane 26 upwardly inclined longer portion 36, which is slightly convex upward and convex slightly curved downwards. In the illustrated embodiment, it has an average slope of about 45 °.
  • the length of the third section 36 is a multiple of the first section 32 and the second section 34, respectively.
  • center reflector 38 In the area between the two reflectors 30 and the two fluorescent tubes 28 a symmetrical to the median plane 26 arranged center reflector 38 is provided on both sides of the median plane 26 each have an upper, upwardly to the median plane 26 inclined planar reflector surface 40 and one lower, according to Having downwardly inclined to the center plane, substantially flat reflector surface 42.
  • the center reflector 38 further includes a respective downwardly from the center plane 26 inclined away, in each case below one of the light tubes 28 arranged sub-reflector 44, which is connected to it in one piece or otherwise rigidly connected.
  • a parallel to the median plane 26 extending over the length of the entire luminaire opening 48 is provided, which at best by not shown, thin Haltstege or the like may be interrupted.
  • the entire center reflector 38 including the sub-reflector 44 is preferably made of closed high-gloss material.
  • the lower edge 50 of the first vertical section 32 of each reflector 30 preferably abuts the upper side of the associated lower reflector 44.
  • lateral portions D of the lamp housing 14 is in each case at a distance approximately parallel to these ever a side reflector 52 is attached. It extends approximately from the bent portions 22 of the housing 14 to its inner edge 54 at a short distance below the associated arc tube 28 and above the associated sub-reflector 44 and is substantially flat except for the outer edge regions. It is preferably also made of closed high-gloss material and is slightly inclined down to the center plane, so that between the side reflector 52 and the third portion 36 of the associated reflector 30 is an upwardly opening, unobstructed by reflectors beam angle B for the light of the associated arc tube 28th is formed.
  • the Abstrahlwinkel Society B has obliquely laterally upward, whereby glare in the direction of arrow G from obliquely downwards are avoided, however, a good and uniform illumination of the space is achieved laterally and upwards.
  • the third curved portion 36 of the perforated plate reflector 30 determines the size of the radiation angle B.
  • the direct radiation from the arc tube 28 down toward the housing 14 is prevented by the side reflector 52 and the sub-reflector 44.
  • the side reflector 52 in each case supports the wide-angle characteristic of the luminaire, which is essentially determined by the angle B.
  • a translucent horizontal cover plate 56 is attached, which provides some protection against contamination of the central reflector 38 and the tubes 28.
  • the described shape of the three sections of the two perforated plate reflectors 30 serves for a certain, but not complete shading of the fluorescent tubes 28 in the direction of the ceiling 10 above the reflectors 30.
  • the result is a perforated plate of these reflectors 30, a radiation area determined by the angle C immediately after up against the ceiling 10.
  • the gap between the inner edge 54 of the side reflector 52 and the upper side of the lower reflector 44 each directly light from the arc tube 28 in an angular range D 'irradiated to the lateral portions D of the housing 14th lighten.
  • Light emitted by the first sections 32 of the perforated plate reflectors 30 is reflected via the lower reflection surfaces 42 of the center reflector 38 through the opening 48 of the same downward in an angular range E 'on the central portion E of the housing 14, while directly through the openings 48 of the Luminous tubes 28 radiated light in angular ranges E '' on the middle section E incident.
  • the angle of incidence is so shallow that no direct light would penetrate through holes of a perforated sheet material of the housing 14 to the outside.
  • a largely uniform lightening of the housing 14 is achieved.
  • a transparent film could advantageously be placed on the inside of the housing 14.
  • the lamp shown in Figure 1 is shown in its short suspension on the ceiling 10 in approximately proportion to the room height, while shown in Figure 4 in their arrangement on a standing on the floor 58 tall stand 60 with stand 62 is.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Laser Surgery Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP99107617A 1998-05-18 1999-04-16 Breitstrahlende Indirektleuchte Expired - Lifetime EP0959294B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19822305 1998-05-18
DE19822305A DE19822305C1 (de) 1998-05-18 1998-05-18 Breitstrahlende Indirektleuchte

Publications (3)

Publication Number Publication Date
EP0959294A2 EP0959294A2 (de) 1999-11-24
EP0959294A3 EP0959294A3 (de) 2001-04-11
EP0959294B1 true EP0959294B1 (de) 2006-08-30

Family

ID=7868198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107617A Expired - Lifetime EP0959294B1 (de) 1998-05-18 1999-04-16 Breitstrahlende Indirektleuchte

Country Status (7)

Country Link
US (1) US6042246A (zh)
EP (1) EP0959294B1 (zh)
CN (1) CN1109217C (zh)
AT (1) ATE338246T1 (zh)
DE (2) DE19822305C1 (zh)
DK (1) DK0959294T3 (zh)
SG (1) SG77233A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20050201103A1 (en) * 2004-03-12 2005-09-15 Honeywell International Inc. Luminaires with batwing light distribution
US7621133B2 (en) * 2005-11-18 2009-11-24 General Electric Company Methods and apparatus for starting up combined cycle power systems
US8002446B1 (en) 2008-06-09 2011-08-23 Koninklijke Philips Electronics N.V. Virtual direct and indirect suspended lighting fixture
US8342722B1 (en) * 2010-02-12 2013-01-01 Opdahl Nicholas C Light system
US9140420B2 (en) * 2011-06-14 2015-09-22 Osram Sylvania Inc. Edge-lit light panel having a downlight within a lined indentation in the panel
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
CN112147115B (zh) * 2020-08-31 2023-10-27 中国科学院苏州生物医学工程技术研究所 一种荧光采集装置及核酸检测装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545058A (en) * 1948-07-26 1951-03-13 John S Walsh Lighting fixture for use with elogated tubular lamps
US3803401A (en) * 1970-10-21 1974-04-09 H Drews Reflectors for strip type fluorescent lighting
EP0217323A3 (de) * 1985-10-02 1989-03-08 THORN LICHT GmbH Leuchte und Beleuchtungsverfahren
US5075827A (en) * 1990-10-31 1991-12-24 Smith David H Indirect light fixture amplification reflector system
EP0538727B1 (de) * 1991-10-24 1995-05-31 ZUMTOBEL LICHT GmbH Reflektor für eine Leuchte
DE19537685C1 (de) * 1995-10-10 1997-03-13 Waldmann Gmbh & Co Herbert Breitstrahlende Indirektleuchte

Also Published As

Publication number Publication date
DE19822305C1 (de) 1999-12-02
SG77233A1 (en) 2000-12-19
ATE338246T1 (de) 2006-09-15
EP0959294A2 (de) 1999-11-24
US6042246A (en) 2000-03-28
CN1109217C (zh) 2003-05-21
DE59913806D1 (de) 2006-10-12
EP0959294A3 (de) 2001-04-11
CN1236077A (zh) 1999-11-24
DK0959294T3 (da) 2007-01-08

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