EP0061526A1 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP0061526A1
EP0061526A1 EP81109266A EP81109266A EP0061526A1 EP 0061526 A1 EP0061526 A1 EP 0061526A1 EP 81109266 A EP81109266 A EP 81109266A EP 81109266 A EP81109266 A EP 81109266A EP 0061526 A1 EP0061526 A1 EP 0061526A1
Authority
EP
European Patent Office
Prior art keywords
lamp
mirror
top surface
transverse
cover piece
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
EP81109266A
Other languages
German (de)
English (en)
Inventor
Joachim Dipl.-Ing. Leibig
Reiner Dr. Pusch
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0061526A1 publication Critical patent/EP0061526A1/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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs

Definitions

  • the invention relates to a mirror lamp for a rod-shaped lamp according to the preamble of claim 1.
  • the opening of the wedge-shaped space between the two walls of each transverse lamella is filled at the top by a strip through which the walls of the transverse lamella are pressed against the edges of corresponding recesses in the longitudinal mirrors. If these strips - as usual - have a reflective top surface, mirror images are created in the longitudinal mirrors above the transverse slats, which radiate directly or indirectly into the shielded area of the lamp.
  • the shielded area is the angular area that does not receive direct light from the lamp, i.e., e.g. is completely shielded by a housing wall; the size of this angular range varies depending on the application of the lamp.
  • top surface is understood to mean the upper horizontal projection of a transverse lamella.
  • the invention has for its object to use the light rays impinging on the top surface of a transverse lamella in a mirror lamp of the type mentioned without disturbing mirror images occurring in the longitudinal mirrors.
  • the cover surface is designed to be reflective in the invention, light losses are kept as low as possible.
  • the corresponding curvature of the cover surface ensures that the light from the lamp striking it does not radiate into the shielded area: in the case of a light which only radiates downwards, the curvature of the cover surface is designed, for example, in such a way that the rays deflected by it are so high lying section of the side mirror radiate that the resulting mirror image of the lamp is no longer visible from the shielded area. This mirror image does not shine in the shielded area but increases the light intensity in the desired radiation area of the lamp.
  • the top surface parallel to the longitudinal axis of the lamp will have an essentially V-shaped cross-sectional profile, the height of which is equal to or less than half the horizontal projection of the top surface; the middle edge between the two legs of the V-shaped cross-sectional profile can point upwards or downwards.
  • the legs themselves are preferably slightly curved outwards in the manner of a bird's wing.
  • mirror lights with an upper and a lower light exit opening will have an upward-radiating upper mirror that runs parallel to the lamp, as shown in DE-Gbm 79 10 659.
  • the curvature of the top surface is preferably selected so that the light rays striking it are reflected by the upper light exit opening.
  • the top surface preferably extends to the lower boundary edge of the upper mirror.
  • the upper mirror and the top surface are preferably curved in the transition area in such a way that there is a continuous transition.
  • the lower boundary edge of the upper mirror is preferably in or below the lower horizontal tangential plane on the lamp.
  • the known transverse lamellae have a constant height, irrespective of whether the transverse lamellae as a hollow body made of sheet metal or as a solid body, e.g. made of coated plastic.
  • a cover piece with the curved cover surface is provided for placement on known transverse lamellae.
  • This cover piece can in turn be a solid molded part made of plastic or a bent part made of sheet metal.
  • a longitudinal mirror 2 is arranged in the housing 1 with a lower light exit opening 11 and an upper light exit opening 12, which runs parallel to a rod-shaped fluorescent lamp 6 and consists of a downward-reflecting lower mirror 21 and an upward-radiating upper mirror 22; these two mirrors meet in a boundary edge 20 running parallel to the lamp 6.
  • Transverse lamellae 3 and longitudinal mirror 2 form a mirror unit which can be removed from the housing 1.
  • a central web 5 is arranged above the transverse lamella 3, which is symmetrical to its vertical axis V and has two V-shaped lower longitudinal walls 51 and upper longitudinal walls 52 converging upwards; these longitudinal walls have a reflective surface on the outside.
  • a cover piece 4 is held in a form-fitting manner, which has an upwardly directed, concave, reflective cover surface 43 and upwardly converging reflective side walls 41, 42. These side walls have an inward bottom angled guide edges 411, 421, which engage in the opening 33 of the transverse lamella 3 and thereby align the transverse lamella and cover piece.
  • the cover piece 4 is held in the position shown in the figures on the transverse lamella 3 by the upwardly converging transverse walls 44, 45, the course of which is adapted to that of the lower mirror 21 or the lower longitudinal walls 51 of the central web 5.
  • the cover pieces 4 are placed on the transverse slats 3 before the mirror unit (2 + 3) is inserted, and are held in a form-fitting manner between the side mirror 2 and the central web 5 after the insertion.
  • FIG 1 some center rays S1 to S4 are entered: They show that the lower mirror 21 and the upper mirror 22 radiate crosswise (S1, S2).
  • the top surface 43 forms, together with the top mirror 12, a continuous curve which is curved so that the rays of the lamp 6 impinging on the top surface 43 of the cover 4 are reflected by the upper light exit opening 12 (rays S3, S4).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP81109266A 1981-03-27 1981-10-29 Luminaire Ceased EP0061526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3112210 1981-03-27
DE19813112210 DE3112210C2 (de) 1981-03-27 1981-03-27 Spiegelleuchte

Publications (1)

Publication Number Publication Date
EP0061526A1 true EP0061526A1 (fr) 1982-10-06

Family

ID=6128511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109266A Ceased EP0061526A1 (fr) 1981-03-27 1981-10-29 Luminaire

Country Status (2)

Country Link
EP (1) EP0061526A1 (fr)
DE (1) DE3112210C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138747A1 (fr) * 1983-10-18 1985-04-24 Semperlux GmbH Elément parabolique à lamelles pour lampes allongées
FR2554549A1 (fr) * 1983-11-03 1985-05-10 Sabir Dispositif anti-eblouissement pour luminaires a sources lineaires
EP0309832A1 (fr) * 1987-09-28 1989-04-05 Siemens Aktiengesellschaft Appareil d'éclairage
US5343373A (en) * 1993-02-19 1994-08-30 Thomas Industries, Inc. Suspended up/down light
NL1007835C2 (nl) * 1997-12-18 1999-06-21 Veco Products B V Verlichtingsarmatuur.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8702921U1 (de) * 1987-02-25 1987-07-30 Metaprint Metallverarbeitung GmbH, 8000 München Leuchte
AU700856B2 (en) * 1995-02-14 1999-01-14 Koninklijke Philips Electronics N.V. Luminaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB814354A (en) * 1956-09-19 1959-06-03 Leitz Ernst Gmbh Improvements in or relating to reflector arrangements for elongated tubular light sources
DE2655702A1 (de) * 1976-12-09 1978-06-15 Trilux Lenze Gmbh & Co Kg Leuchtenraster

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413460A (en) * 1964-12-28 1968-11-26 Sjolander Karl Lennart Ingemar Optical anti-dazzling device
DE7910659U1 (de) * 1979-04-11 1979-07-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Pendelleuchte mit teilweise nach oben strahlender optik
DE3014365A1 (de) * 1980-04-15 1981-10-22 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Leuchte mit einer langgestreckten lampe und einem darunter angeordneten spiegelraster

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB814354A (en) * 1956-09-19 1959-06-03 Leitz Ernst Gmbh Improvements in or relating to reflector arrangements for elongated tubular light sources
DE2655702A1 (de) * 1976-12-09 1978-06-15 Trilux Lenze Gmbh & Co Kg Leuchtenraster

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138747A1 (fr) * 1983-10-18 1985-04-24 Semperlux GmbH Elément parabolique à lamelles pour lampes allongées
FR2554549A1 (fr) * 1983-11-03 1985-05-10 Sabir Dispositif anti-eblouissement pour luminaires a sources lineaires
EP0309832A1 (fr) * 1987-09-28 1989-04-05 Siemens Aktiengesellschaft Appareil d'éclairage
US4888668A (en) * 1987-09-28 1989-12-19 Siemens Aktiengesellschaft Mirror light unit
US5343373A (en) * 1993-02-19 1994-08-30 Thomas Industries, Inc. Suspended up/down light
NL1007835C2 (nl) * 1997-12-18 1999-06-21 Veco Products B V Verlichtingsarmatuur.

Also Published As

Publication number Publication date
DE3112210C2 (de) 1985-01-10
DE3112210A1 (de) 1982-10-14

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811029

AK Designated contracting states

Designated state(s): AT CH SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19840923

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LEIBIG, JOACHIM, DIPL.-ING.

Inventor name: PUSCH, REINER, DR.