EP0288668A2 - Boîtier de luminaire - Google Patents

Boîtier de luminaire Download PDF

Info

Publication number
EP0288668A2
EP0288668A2 EP88101837A EP88101837A EP0288668A2 EP 0288668 A2 EP0288668 A2 EP 0288668A2 EP 88101837 A EP88101837 A EP 88101837A EP 88101837 A EP88101837 A EP 88101837A EP 0288668 A2 EP0288668 A2 EP 0288668A2
Authority
EP
European Patent Office
Prior art keywords
luminaire
trough
lamp
light fixture
light
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.)
Ceased
Application number
EP88101837A
Other languages
German (de)
English (en)
Other versions
EP0288668A3 (fr
Inventor
Karl-Heinz Thiele
Mathias Decker
Werner Stoltefaut
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.)
Trilux GmbH and Co KG
Original Assignee
Trilux Lenze 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 Trilux Lenze GmbH and Co KG filed Critical Trilux Lenze GmbH and Co KG
Publication of EP0288668A2 publication Critical patent/EP0288668A2/fr
Publication of EP0288668A3 publication Critical patent/EP0288668A3/fr
Ceased legal-status Critical Current

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts

Definitions

  • the invention relates to a luminaire housing according to the preamble of claim 1.
  • luminaire housings which have an opaque upper part which contains the fastening devices, lamp holders, electrical supply devices and connectors and which is closed at the bottom by a translucent luminaire trough.
  • the lamp tray which is mostly made of plastic, can be transparent, opal (milky) or equipped with a light-scattering prism structure. It is known to provide the outer surface of the upper part of the lamp with a granular, rough structure in order to prevent any unevenness or irregularities in this outer surface from appearing strongly.
  • the luminaire trays of the well-known luminaire housings stand out visually from the luminaire upper part. If the luminaire trays have a smooth outer surface, they have a certain mirror effect. If extraneous light falls on the luminaire pan when the lamp is switched off, this is reflected. There are bumps and irregularities, e.g. Wave formation, clearly recognizable, even if these irregularities are very weak. As is well known, bumps or wave formations are very clearly visible in the reflected light. In the case of a smooth, reflecting trough, when the lamp is switched off, all bumps can be recognized by reflection, e.g. also such unevenness caused by sagging. If the luminaire tray has a prism structure, the light effect of the prisms means that no uniform light scatter and light distribution can be achieved.
  • the invention has for its object to provide a lamp housing of the type specified in the preamble of claim 1, which has a pleasing uniform appearance and which is designed so that there is a uniform light scattering while avoiding mirror effects.
  • the luminaire upper part and luminaire trough are provided with a grainy structured outer surface.
  • the luminaire housing has one unit neat appearance with a matt outer surface. The luminaire housing appears to be "from a single source", as the granular structure of the luminaire top continues in the tub.
  • a particular advantage is that the granular structure of the outside of the luminaire trough prevents reflections because the light is diffusely reflected in Lambertian scattering. In this way, reflection effects are avoided, so that any deformation of the luminaire tray is not recognizable even under the influence of extraneous light.
  • the luminaire trough appears equally bright from all directions due to the light-scattering outer surface. There is therefore no glare and largely ideal Lambertian light scattering.
  • Claims 2 and 3 relate to preferred ranges of the average roughness.
  • the luminaire housing forms uniform appearing areas at the points where the luminaire upper part and luminaire trough meet.
  • the transition between the upper part and the bath is hardly recognizable.
  • the lamp housing in the joint area of the upper part and the tub has a kink line that blurs any inaccuracies in the color matching.
  • the drawing shows an end view of the lamp.
  • the ceiling lamp shown has a lamp upper part 10 made of metal or plastic and a lamp trough 11 closing the upper part 10 downwards.
  • the lamp top 10 is closed at the top and on the sides and has the shape of an inverted trough.
  • the luminaire trough 11 is inserted into the lower opening of the upper luminaire part 10 in such a way that the outer walls of the upper part 10 and trough 11 abut one another flush in the transition region 14.
  • the lamp trough 11 continues the lower vertical region of the outer wall of the upper part 10 downwards.
  • the outer surface of the upper part 10 of the lamp is structured in a granular manner in a known manner.
  • This structure can be produced in that a metallic upper part of the lamp is coated with a structural lacquer or that an upper part made of plastic is made in a blow or injection mold, the walls of which are sandblasted, eroded, etched or the like. have a granular structure.
  • the lamp tray 11 which is made of a translucent plastic, is produced by injection molding or by blowing.
  • the mold used for this is treated by sandblasting, erosion processes or by etching, so that the mold wall that forms the outer surface of the luminaire trough is given a fine-grained structure.
  • the outer surfaces of the upper part of the lamp 10 and the luminaire trough are thus irregularly fine-grained, the roughness depth and roughness distribution being approximately the same for the two parts mentioned.
  • the inner surface of the lamp trough 11 can also be structured accordingly.
  • the luminaire tray is made of a material that has constant thickness over the entire surface area and in which the material thickness is much greater than the roughness depth of the surface structure.
  • the roughness depth of the luminaire tray is between 10 ⁇ m and 80 ⁇ m, and preferably between 16 ⁇ m and 40 ⁇ m.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP88101837A 1987-04-29 1988-02-09 Boítier de luminaire Ceased EP0288668A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8706137U 1987-04-29
DE8706137U DE8706137U1 (de) 1987-04-29 1987-04-29 Leuchtengehäuse

Publications (2)

Publication Number Publication Date
EP0288668A2 true EP0288668A2 (fr) 1988-11-02
EP0288668A3 EP0288668A3 (fr) 1989-11-08

Family

ID=6807492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101837A Ceased EP0288668A3 (fr) 1987-04-29 1988-02-09 Boítier de luminaire

Country Status (2)

Country Link
EP (1) EP0288668A3 (fr)
DE (1) DE8706137U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050087A1 (fr) 2003-11-21 2005-06-02 Zumtobel Staff Gmbh Lampe a element de sortie de lumiere transparent

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413644A1 (de) * 1994-04-20 1995-10-26 Cristallux Werk Waldachtal Gmb Lichtabdeckung und Verfahren zu ihrer Herstellung
DE19621986B4 (de) * 1996-04-04 2012-07-19 Bts Gmbh & Co. Kg Einschlagdübel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR583356A (fr) * 1923-10-01 1925-01-12 Procédé de décoration cristallisée transparente ou translucide pour ampoules électriques, verreries d'éclairage ou autre, verroterie, etc.
US3524051A (en) * 1968-08-19 1970-08-11 Gen Electric Luminaire
GB1359325A (en) * 1972-05-24 1974-07-10 Merchant Adventurers Ltd Lighting units
IT209727Z2 (it) * 1985-12-20 1988-10-24 Acrilux Srl Struttura per un corpo illuminante, particolarmente del tipo a plafoniera.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050087A1 (fr) 2003-11-21 2005-06-02 Zumtobel Staff Gmbh Lampe a element de sortie de lumiere transparent

Also Published As

Publication number Publication date
EP0288668A3 (fr) 1989-11-08
DE8706137U1 (de) 1987-06-11

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