EP0959294A2 - Appareil d'éclairage indirect à faisceau large - Google Patents

Appareil d'éclairage indirect à faisceau large Download PDF

Info

Publication number
EP0959294A2
EP0959294A2 EP99107617A EP99107617A EP0959294A2 EP 0959294 A2 EP0959294 A2 EP 0959294A2 EP 99107617 A EP99107617 A EP 99107617A EP 99107617 A EP99107617 A EP 99107617A EP 0959294 A2 EP0959294 A2 EP 0959294A2
Authority
EP
European Patent Office
Prior art keywords
reflector
section
light
indirect
plane
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
EP99107617A
Other languages
German (de)
English (en)
Other versions
EP0959294A3 (fr
EP0959294B1 (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 EP0959294A2 publication Critical patent/EP0959294A2/fr
Publication of EP0959294A3 publication Critical patent/EP0959294A3/fr
Application granted granted Critical
Publication of EP0959294B1 publication Critical patent/EP0959294B1/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
    • 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 intended to be a lamp of the beginning mentioned type can be improved so that even with fluorescent tubes with a smaller diameter a good and even illumination of the room while avoiding excessive luminance achieved on the ceiling directly above the lamp can be.
  • the arrangement of perforated sheet metal parts in the housing together with other reflectors in the middle, side and bottom of the interior of the Luminaire housing can optionally be used for an even smoother Light distribution and avoidance of shadows and especially for uniform lightening of the housing worry down.
  • the relatively flat lamp housing 14 Since the distance A from the ceiling 10 to the lower edge 12 of the 1 should be as small as possible, is the relatively flat lamp housing 14 by means of a short lamp shaft 16 and an approximately conical one Ceiling rosette 18 attached at a short distance from the ceiling 10.
  • the lamp housing 14 is slightly convex downwards curved and is made of translucent material that however e.g. in the form of perforated sheet, mesh, mesh, Frosted glass or other perforated material optionally let more or less light down can. Ends at the side edges of the lamp housing 14 the same in each case in sections 22 bent over the lamp housing 14 is open at the top.
  • the lamp housing 14 is symmetrical to one in the direction the longitudinal extent of the lamp housing 14 extending vertical center plane 26 formed. At equal intervals from the central plane 26 and at the same height above the Housing 14, i.e. approximately at the level of the bent sections 22 of the lamp housing 14, one is parallel to the central plane 26 extending tube 28 arranged.
  • each tube 28 is a perforated plate High-gloss reflector arranged, generally designated 30 is.
  • a first approximately vertical section 32 lies on the the central plane 26 side of the associated fluorescent tube 28 and protrudes slightly above it. In a little Distance from the top of the tube 28 closes to the first section 32 a second approximately horizontal Section 34 of the reflector 30, the length of which approximately Diameter of the fluorescent tube 28 corresponds.
  • the second section 34 then goes into a third, from the middle level 26 away upward sloping longer section 36 over the slightly convex upwards and slightly concave downwards is. In the illustrated embodiment, it has one 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.
  • Center reflector 38 provided on both sides the middle plane 26 an upper, up to the middle plane 26 inclined flat reflector surface 40 and a lower, essentially sloping down towards the median plane has flat reflector surface 42.
  • the center reflector 38 also points downward from the central plane 26 inclined, each arranged below one of the fluorescent tubes 28 Sub-reflector 44, which is integral with it or is otherwise rigidly connected. Between each lower flat reflector surface 42 and the upper edge 46 of the Sub-reflector 44 is parallel to the central plane 26 the length of the entire opening 48 provided, at most by thin, not shown Retaining bars or the like can 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 each Reflector 30 is preferably on the top of the associated Sub-reflector 44 on.
  • Section D of the lamp housing 14 is spaced apart a side reflector 52 is attached approximately parallel to each. It runs approximately from the bent portions 22 of the Housing 14 up to its inner edge 54 each in a small amount Distance below the associated fluorescent tube 28 and above of the associated sub-reflector 44 and is except for the outer Edge areas essentially flat. It preferably exists also made of closed high-gloss material and is for Median plane slightly inclined downwards, so that between the side reflector 52 and the third section 36 of the associated reflector 30 an opening upwards from Reflectors unobstructed beam angle B for the light of the associated fluorescent tube 28 is formed.
  • the beam angle range B points diagonally upwards, causing glare safely avoided in the direction of arrow G from obliquely below a good and even illumination of the room is reached laterally and upwards.
  • the third curved section 36 of the perforated plate reflector 30 is decisive for the size of the beam angle B.
  • the direct beam from the tube 28 down towards the Housing 14 is through the side reflector 52 and the sub-reflector 44 prevented.
  • the side reflector supports 52 each have the wide-beam characteristic of Luminaire essentially determined by the angle B. becomes.
  • the described shape of the three sections of the two perforated sheet reflectors 30 serves for a certain, but not complete Shading of the fluorescent tubes 28 towards the ceiling 10 above the reflectors 30. It results from the perforated plate of these reflectors 30 determined by the angle C. Beam area directly up against the ceiling 10.
  • the angle of incidence is partial so flat that there is no direct light, for example, through holes in a perforated sheet material of the housing 14 would penetrate to the outside. Thereby is a largely uniform lightening of the case 14 reached. To optimize this, it could be advantageous a transparent film is placed on the inside of the housing 14 become.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Laser Surgery Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP99107617A 1998-05-18 1999-04-16 Appareil d'éclairage indirect à faisceau large Expired - Lifetime EP0959294B1 (fr)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=7868198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107617A Expired - Lifetime EP0959294B1 (fr) 1998-05-18 1999-04-16 Appareil d'éclairage indirect à faisceau large

Country Status (7)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537685C1 (de) 1995-10-10 1997-03-13 Waldmann Gmbh & Co Herbert Breitstrahlende Indirektleuchte

Family Cites Families (5)

* 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 (fr) * 1985-10-02 1989-03-08 THORN LICHT GmbH Dispositif et procédé d'éclairage
US5075827A (en) * 1990-10-31 1991-12-24 Smith David H Indirect light fixture amplification reflector system
ATE123335T1 (de) * 1991-10-24 1995-06-15 Zumtobel Licht Reflektor für eine leuchte.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537685C1 (de) 1995-10-10 1997-03-13 Waldmann Gmbh & Co Herbert Breitstrahlende Indirektleuchte

Also Published As

Publication number Publication date
DE59913806D1 (de) 2006-10-12
EP0959294A3 (fr) 2001-04-11
SG77233A1 (en) 2000-12-19
CN1236077A (zh) 1999-11-24
US6042246A (en) 2000-03-28
ATE338246T1 (de) 2006-09-15
DE19822305C1 (de) 1999-12-02
CN1109217C (zh) 2003-05-21
DK0959294T3 (da) 2007-01-08
EP0959294B1 (fr) 2006-08-30

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