ZA862793B - Lighting unit having a trough-shaped reflector - Google Patents

Lighting unit having a trough-shaped reflector

Info

Publication number
ZA862793B
ZA862793B ZA862793A ZA862793A ZA862793B ZA 862793 B ZA862793 B ZA 862793B ZA 862793 A ZA862793 A ZA 862793A ZA 862793 A ZA862793 A ZA 862793A ZA 862793 B ZA862793 B ZA 862793B
Authority
ZA
South Africa
Prior art keywords
reflector
lamp
elongated hollow
trough
lighting unit
Prior art date
Application number
ZA862793A
Inventor
Joachim Liebig
Original Assignee
Siemens Ag
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 filed Critical Siemens Ag
Publication of ZA862793B publication Critical patent/ZA862793B/en

Links

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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Road Signs Or Road Markings (AREA)
  • Push-Button Switches (AREA)
  • Aerials With Secondary Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Laser Surgery Devices (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

It is usual to close the opening between the side reflectors (11, 12) of an elongated hollow reflector (1) over the lamp (2) by an upper reflector (13) which has a cross sectionally V-shaped reflector section (130) pointing towards the lamp above the lamp. The invention is based on the object of developing such an upper reflector for an elongated hollow reflector of very low constructional height in such a manner that it can be used unmodified in connection with an elongated hollow reflector with batwing, BAP or dark characteristic. For this purpose, the upper reflector is given the shape shown in the figure, the dimensions specified in Claim 1 applying to the individual sections. <IMAGE>
ZA862793A 1985-04-16 1986-04-15 Lighting unit having a trough-shaped reflector ZA862793B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8511215U DE8511215U1 (en) 1985-04-16 1985-04-16 Luminaire with a gutter mirror

Publications (1)

Publication Number Publication Date
ZA862793B true ZA862793B (en) 1986-11-26

Family

ID=6779965

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA862793A ZA862793B (en) 1985-04-16 1986-04-15 Lighting unit having a trough-shaped reflector

Country Status (7)

Country Link
EP (1) EP0199203B1 (en)
JP (1) JPS61184209U (en)
AT (1) ATE62735T1 (en)
DE (2) DE8511215U1 (en)
GR (1) GR860974B (en)
NO (1) NO169250C (en)
ZA (1) ZA862793B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997043578A1 (en) * 1996-05-09 1997-11-20 Houviez Gerard Improved light source reflector
CN1105854C (en) * 1998-09-17 2003-04-16 皇家菲利浦电子有限公司 Luminaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR647053A (en) * 1927-01-29 1928-11-20 Zeiss Carl Street lighting device
CH304867A (en) * 1954-05-08 1955-01-31 Regent Beleuchtungskoerper G L Fluorescent lamp for street lighting.
AT263932B (en) * 1965-09-08 1968-08-12 Siemens Ag Ceiling light for two fluorescent lamps
US3591798A (en) * 1968-11-04 1971-07-06 Lightolier Inc Lighting fixture
US4344111A (en) * 1977-12-20 1982-08-10 Mcgraw-Edison Company High efficiency lighting units and systems using same
DE2833894C2 (en) * 1978-08-02 1980-07-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Luminaire for a tubular fluorescent lamp

Also Published As

Publication number Publication date
DE8511215U1 (en) 1985-06-05
NO861163L (en) 1986-10-17
JPS61184209U (en) 1986-11-17
EP0199203A3 (en) 1988-09-21
EP0199203A2 (en) 1986-10-29
GR860974B (en) 1986-08-12
ATE62735T1 (en) 1991-05-15
EP0199203B1 (en) 1991-04-17
NO169250B (en) 1992-02-17
DE3678746D1 (en) 1991-05-23
NO169250C (en) 1992-05-27

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