ZA801879B - Bench light for tubular fluorescent lamps - Google Patents

Bench light for tubular fluorescent lamps

Info

Publication number
ZA801879B
ZA801879B ZA00801879A ZA801879A ZA801879B ZA 801879 B ZA801879 B ZA 801879B ZA 00801879 A ZA00801879 A ZA 00801879A ZA 801879 A ZA801879 A ZA 801879A ZA 801879 B ZA801879 B ZA 801879B
Authority
ZA
South Africa
Prior art keywords
reflector
housing
angle
fluorescent lamp
plane
Prior art date
Application number
ZA00801879A
Inventor
H Riehl
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 ZA801879B publication Critical patent/ZA801879B/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
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. 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
    • F21V7/04—Optical design
    • 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

  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Liquid Crystal Substances (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Lasers (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1. A table light (2) with a support (26) and a housing (21) which surrounds a tubular fluorescent lamp (20) and a reflector arrangement, and in whose light outlet aperture there is arranged a grid provided with transverse laminations (25) that extend transversely with respect to the longitudinal axis of the housing, wherein the support (26) and the housing (21) are so designed that the longitudinal edges of the light outlet aperture and the fluorescent lamp (20) run parallel to the plane of the table, the distance of the lower longitudinal edge of the housing from the plane of the table having a value from 50 to 85 cm, and the light outlet plane which passes through the longitudinal edges of the light outlet aperture forms an acute angle with respect to the plane of table, which angle opens towards the centre of the table, and wherein the reflector arrangement possesses a top reflector (22) extending above the fluorescent lamp (20) and which possesses a main radiation direction of 40 degrees +- 10 degrees relative to the horizontal and further possesses a rear reflector (23) whose main radiation direction corresponds approximately to that of the top reflector (22), characterised in that one single rectangular, flat additional reflector (24) which also has a reflective upper surface (240) is arranged parallel to the fluorescent lamp (20) between the latter and the upper housing longitudinal edge (211) with an angle of inclination (beta) relative to the horizontal which is up to 15 degrees smaller than the angle (vtheta) of the main radiation direction (220) of the top reflector (22), and wherein the width of the additional reflector (24) is such that the fluorescent lamp (20) is entirely covered above the requisite screening angle and wherein its upper longitudinal edge (241) lies on or above a boundary line (204) which runs through the upper housing longitudinal edge (211) with the inclination of the screening angle.
ZA00801879A 1979-03-30 1980-03-31 Bench light for tubular fluorescent lamps ZA801879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2912766A DE2912766C2 (en) 1979-03-30 1979-03-30 Table lamp for tubular fluorescent lamps

Publications (1)

Publication Number Publication Date
ZA801879B true ZA801879B (en) 1981-08-26

Family

ID=6066952

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00801879A ZA801879B (en) 1979-03-30 1980-03-31 Bench light for tubular fluorescent lamps

Country Status (7)

Country Link
EP (1) EP0017146B1 (en)
AT (1) ATE728T1 (en)
DE (1) DE2912766C2 (en)
DK (1) DK146894C (en)
FI (1) FI64711C (en)
NO (1) NO150576C (en)
ZA (1) ZA801879B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO157836C (en) * 1985-04-19 1988-05-25 Jacobsen As J ASYMMETRIC LIGHTING DEVICE.
DE3711366A1 (en) * 1987-04-04 1988-10-27 Pohlschroeder & Co Kg Louvered luminaire for workplaces
DE9101774U1 (en) * 1991-02-15 1991-05-08 Siemens AG, 8000 München Workplace light
DE4411891A1 (en) * 1994-04-07 1995-10-12 Ansorg Gmbh Reflector lamp
EP0833101B1 (en) * 1996-09-26 2002-04-17 VH Lichttechnische Spezialgeräte GmbH Reflector arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190906836A (en) * 1909-03-22 1910-03-17 Gilbert Fox Allom Improvements in Electric Light Reflectors for Concentrating Light.
US2305721A (en) * 1940-08-15 1942-12-22 Farles Mfg Company Fluorescent tubular lamp
US2560281A (en) * 1945-11-29 1951-07-10 Sight Light Corp Luminaire with glare shielding means for producing an optimum distribution of light on a work surface
DE826469C (en) * 1948-10-02 1952-01-03 Siemens Schuckertwerke A G Table lamp for fluorescent lamps
FR2094504A5 (en) * 1970-06-23 1972-02-04 Holophane

Also Published As

Publication number Publication date
DK146894C (en) 1984-07-16
EP0017146A1 (en) 1980-10-15
FI64711B (en) 1983-08-31
ATE728T1 (en) 1982-03-15
DK146894B (en) 1984-01-30
NO150576B (en) 1984-07-30
DE2912766C2 (en) 1981-11-12
DE2912766B1 (en) 1980-09-11
NO150576C (en) 1984-11-07
FI64711C (en) 1983-12-12
FI800835A (en) 1980-10-01
NO800875L (en) 1980-10-01
EP0017146B1 (en) 1982-02-24
DK130980A (en) 1980-10-01

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