DK498382A - WIDTHLIGHT ROTATION SYMMETRIC STREET LAMP - Google Patents

WIDTHLIGHT ROTATION SYMMETRIC STREET LAMP Download PDF

Info

Publication number
DK498382A
DK498382A DK498382A DK498382A DK498382A DK 498382 A DK498382 A DK 498382A DK 498382 A DK498382 A DK 498382A DK 498382 A DK498382 A DK 498382A DK 498382 A DK498382 A DK 498382A
Authority
DK
Denmark
Prior art keywords
axis
lamp
symmetry
outer diameter
reflector
Prior art date
Application number
DK498382A
Other languages
Danish (da)
Other versions
DK150757C (en
DK150757B (en
Inventor
Reiner Pusch
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 DK498382A publication Critical patent/DK498382A/en
Publication of DK150757B publication Critical patent/DK150757B/en
Application granted granted Critical
Publication of DK150757C publication Critical patent/DK150757C/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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect 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
    • F21V7/06—Optical design with parabolic curvature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

1. A broad-beam axially symmetrical street lamp having three reflectors (1, 2, 3) in the form of surfaces of rotation, which are arranged above one another around the axis of symmetry (A) of the street lamp, which respectively have a lamp opening in the centre and which reflect the light of the lamp (L) away from the axis of symmetry at a high angle, for a lamp which has a translucent bulb and which is so assigned that its longitudinal axis coincides with the axis of symmetry, characterised in that the generatrix for the surfaces of rotation of the three reflectors are sections consisting of confocal parabolas, whose respective focal points (F) lie on the axis of symmetry (A) at the level of the centre point (M) of the heated discharge tube (B) of the lamp (L) and which are determined by the following values (in each case with a tolerance of + or - 10 %) : see diagramm : EP0085145,P4,F1 where f is the focal length, D is the outer diameter of the larger reflector, alpha is the angle of the main axis - measured clock-wise from the axis of symmetry (A) below the focal point (F) - and d is the diameter of the lamp opening, that the outer diameter (a1) of the lowermost reflector (1) ids represented by a1/D = 0,82 + or - 10 %, and that the second reflector (2) has the largest outer diameter (D), whose value is below 300 mm and preferably amounts to 220 mm + or - 10 %.
DK498382A 1982-02-01 1982-11-09 WIDE-RIGHT, ROTATION SYMMETRIC STREET LIGHT DK150757C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203284A DE3203284C2 (en) 1982-02-01 1982-02-01 Broad beam, rotationally symmetrical street light
DE3203284 1982-02-01

Publications (3)

Publication Number Publication Date
DK498382A true DK498382A (en) 1983-08-02
DK150757B DK150757B (en) 1987-06-15
DK150757C DK150757C (en) 1988-04-05

Family

ID=6154483

Family Applications (1)

Application Number Title Priority Date Filing Date
DK498382A DK150757C (en) 1982-02-01 1982-11-09 WIDE-RIGHT, ROTATION SYMMETRIC STREET LIGHT

Country Status (7)

Country Link
EP (1) EP0085145B1 (en)
AT (1) ATE13714T1 (en)
DE (1) DE3203284C2 (en)
DK (1) DK150757C (en)
GR (1) GR77733B (en)
NO (1) NO159417C (en)
ZA (1) ZA828952B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222635A1 (en) * 2002-05-17 2003-12-18 Ilias Efthimiou off nozzle
CN101963321B (en) * 2009-07-23 2012-06-27 富士迈半导体精密工业（上海）有限公司 Road illuminating device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290015C (en) *
DE453026C (en) * 1926-05-26 1927-11-26 Louis Poulsen & Co Reflector arrangement for indirect lighting
US1796468A (en) * 1927-07-26 1931-03-17 Main Georges Incandescent electric lamp
GB448412A (en) * 1934-09-03 1935-03-04 Henri Leroudier An improved projecting apparatus for light or heat rays or sound waves
US3593014A (en) * 1969-01-17 1971-07-13 Gen Signal Corp Low level light fixture

Also Published As

Publication number Publication date
DK150757C (en) 1988-04-05
ATE13714T1 (en) 1985-06-15
NO159417C (en) 1988-12-21
ZA828952B (en) 1983-12-28
DK150757B (en) 1987-06-15
GR77733B (en) 1984-09-25
EP0085145B1 (en) 1985-06-05
NO823750L (en) 1983-08-02
DE3203284A1 (en) 1983-08-18
NO159417B (en) 1988-09-12
DE3203284C2 (en) 1984-08-02
EP0085145A1 (en) 1983-08-10

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PBP Patent lapsed