ATE11693T1 - PENDANT LAMP. - Google Patents

PENDANT LAMP.

Info

Publication number
ATE11693T1
ATE11693T1 AT81109267T AT81109267T ATE11693T1 AT E11693 T1 ATE11693 T1 AT E11693T1 AT 81109267 T AT81109267 T AT 81109267T AT 81109267 T AT81109267 T AT 81109267T AT E11693 T1 ATE11693 T1 AT E11693T1
Authority
AT
Austria
Prior art keywords
lamp
mirrors
light outlet
radiate
beam angle
Prior art date
Application number
AT81109267T
Other languages
German (de)
Inventor
Joachim Dipl.-Ing. Leibig
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Application granted granted Critical
Publication of ATE11693T1 publication Critical patent/ATE11693T1/en

Links

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
    • 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
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1. A pendant light-fitting having upper (21) and lower (22) light outlet apertures for a rod-shaped lamp (1) which radiates evenly in all directions during operation, and is horizontally arranged between said outlet apertures ; - having two side reflectors (3) ; -- each side reflector having a lower mirror (32) which radiates through the lower light outlet aperture (22), overlaid by an upper mirror (31) bordering on the lower mirror (32) at a boundary edge (30) to radiate through the upper light outlet aperture (21) ; -- the side reflectors (3) being arranged parallel to the lamp (1) on each side thereof, whereby : - the lower mirrors (32) radiate crosswise, - the upper free beam angle (alpha) is at least as large as the lower free beam angle (beta), where this free beam angle lies between the boundary beams at the edges of the upper and lower light outlet apertures which are simultaneously tangents to the lamp enclosing it between them, characterised in - that the boundary edge (30) of each side reflector (3) lies in or below the lower horizontal tangential plane of the lamp (1) ; - that the upper mirrors (31) also radiate crosswise ; - that the lamp (1) is arranged at such a height and the upper mirrors (31) are so designed that the maximum of the light distribution curve produced thereby is below 130 degrees, - and that transverse lamellae (4) are arranged between the lower mirrors (32) in the lower light outlet aperture (22).
AT81109267T 1981-03-27 1981-10-29 PENDANT LAMP. ATE11693T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813112253 DE3112253A1 (en) 1981-03-27 1981-03-27 PENDANT LAMP
EP81109267A EP0061527B1 (en) 1981-03-27 1981-10-29 Pendant lighting fixture

Publications (1)

Publication Number Publication Date
ATE11693T1 true ATE11693T1 (en) 1985-02-15

Family

ID=6128526

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81109267T ATE11693T1 (en) 1981-03-27 1981-10-29 PENDANT LAMP.

Country Status (3)

Country Link
EP (1) EP0061527B1 (en)
AT (1) ATE11693T1 (en)
DE (1) DE3112253A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346786A1 (en) * 1983-12-23 1985-08-22 Maschinenfabrik Georg Kiefer Gmbh, 7000 Stuttgart Pendant luminaire
DE4001839A1 (en) * 1990-01-23 1991-07-25 Adp Automaten Gmbh Suspended lighting unit - has side panels transmitting light and with advertising information
DE4413070A1 (en) * 1994-04-15 1995-10-19 Thorn Licht Gmbh Workplace lamp
EP1259756A2 (en) * 2000-02-29 2002-11-27 LT-LICHT-TECHNIK GmbH Reflector arrangement for a lamp
DE102014119616A1 (en) 2014-12-23 2016-06-23 Siteco Beleuchtungstechnik Gmbh LED lens body for generating a direct and indirect light component

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341895A (en) * 1940-07-12 1944-02-15 Morris B Beck Fluorescent tube lighting fixture
FR1074976A (en) * 1953-02-21 1954-10-11 Lighting device to prevent glare and control the light flow
US3158327A (en) * 1961-09-15 1964-11-24 Herst Lighting Corp Fluorescent lighting unit
DE1963881A1 (en) * 1969-12-20 1971-06-24 Licentia Gmbh Luminaire with reflective coating fluorescent lamp
DE7910659U1 (en) * 1979-04-11 1979-07-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen SUSPENSION LAMP WITH PARTIAL LIGHTING UPWARDS
DE3014336A1 (en) * 1980-04-15 1981-10-22 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Upwards and downwards radiating light fitting - has cover for fully open upper side, which comprises prismatic section on which reflectors focus lamp light

Also Published As

Publication number Publication date
EP0061527A1 (en) 1982-10-06
EP0061527B1 (en) 1985-02-06
DE3112253C2 (en) 1987-06-04
DE3112253A1 (en) 1982-10-28

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