EP2147247B1 - Luminaire avec reflecteur parabolique composite - Google Patents

Luminaire avec reflecteur parabolique composite Download PDF

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Publication number
EP2147247B1
EP2147247B1 EP07795212A EP07795212A EP2147247B1 EP 2147247 B1 EP2147247 B1 EP 2147247B1 EP 07795212 A EP07795212 A EP 07795212A EP 07795212 A EP07795212 A EP 07795212A EP 2147247 B1 EP2147247 B1 EP 2147247B1
Authority
EP
European Patent Office
Prior art keywords
luminaire
segment
parabolic
major axis
light
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.)
Not-in-force
Application number
EP07795212A
Other languages
German (de)
English (en)
Other versions
EP2147247A1 (fr
EP2147247A4 (fr
Inventor
Kurt S. Wilcox
Eric J. Haugaard
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.)
Wolfspeed Inc
Original Assignee
Ruud Lighting Inc
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 Ruud Lighting Inc filed Critical Ruud Lighting Inc
Publication of EP2147247A1 publication Critical patent/EP2147247A1/fr
Publication of EP2147247A4 publication Critical patent/EP2147247A4/fr
Application granted granted Critical
Publication of EP2147247B1 publication Critical patent/EP2147247B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like

Definitions

  • luminaires which include a vertically oriented lamp tend to be effective in producing a more circular lighting effect because of the upright orientation of the lamp arc or filament but tend to be less than satisfactory in generating a rectangular lighting effect for the same reason.
  • a solution to this problem is to provide a luminaire with a horizontally mounted lamp.
  • the horizontal orientation of the lamp arc or filament is more conducive to production of a rectangular lighting effect.
  • horizontally mounted lamps arc-type lamps tend to be relatively energy inefficient compared with vertically mounted lamps because more energy is required to operate the lamp to overcome the effect of gravity on the lamp arc.
  • Each segmented side portion 61, 63 of the preferred example has four sections front-to-rear including a first, or front, section 85, 93, a second or intermediate section 87, 95, a third, or intermediate, section 89, 97 and a fourth, or rear, section 91, 99.
  • side portion 61 includes sections 85-91 each of which is comprised of two segments 101, 103, 105, 107, 109, 111, 113, 115. Segments 101-115 represent a second plurality of two-dimensional parabolic segments.
  • Figure 15 is a two-dimensional ray trace for center portion 59 showing three representative light rays traced for each of the parabolas of segmented center portion 59 segments 73, 75, 77. Such rays are numbered 73r, 75r, and 77r, respectively, and illustrate the optical characteristics of a parabolic reflector 11, that is, the parabolic reflector reflects light rays from the focus of the parabola along directions parallel to the major axis of the parabola. Figure 15 also illustrates the efficient design of reflector 11 because light rays are directed out of housing 17 with only a single contact with reflector 11, thereby minimizing light scattering effects.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (17)

  1. Luminaire (10) pour éclairer une zone cible (13) ayant une pluralité de sous-régions (133, 135, 137) devant le luminaire (10) et sur les côtés de celui-ci, le luminaire (10) comprenant :
    un boîtier (17) ayant des parois (25, 27, 29) définissant une ouverture inférieure (33), cette ouverture (33) étant située dans un plan (34) généralement horizontal ;
    un support de lampe (31) dans le boîtier (17) positionnée pour supporter une lampe électrique (19) dans une orientation généralement verticale ; et
    un réflecteur (11) dans le boîtier (17) entourant partiellement la lampe (19),
    caractérisé en ce que
    la lampe (19) comprend un segment luminescent (47) généralement axial ayant une pluralité de régions (51, 53, 55),
    et en ce que le réflecteur (11) comporte :
    une portion centrale segmentée (59) ayant de premier et second bords latéraux (65, 67) et une première pluralité de segments centraux (73, 75, 77) dont chacun est parabolique en section transversale, les sections transversales paraboliques des segments (73, 75, 77) ayant des points focaux (79, 81, 83) dans différentes régions parmi la pluralité de régions (51, 53, 55) de sorte que chaque segment (73, 75, 77) dirige une majorité de sa lumière réfléchie vers une sous-région de zone cible particulière (133, 135, 137) devant le luminaire (10) ; et
    une paire de portions latérales segmentées (61, 63) chacune reliée à la portion centrale (59) le long d'un bord respectif parmi les bords latéraux (65, 67), chaque portion latérale (61, 63) ayant une seconde pluralité de segments latéraux (101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131) dont chacun est parabolique en section transversale, les sections transversales paraboliques des segments ayant des points focaux (138) le long de l'emplacement du segment luminescent (47) de sorte que chaque segment dirige une majorité de sa lumière réfléchie vers une sous-région de zone cible particulière (133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169) de la zone cible (13) jusqu'à un côté respectif du luminaire (10).
  2. Luminaire (10) selon la revendication 1, dans lequel la pluralité de régions comporte des régions supérieure (51), centrale (53) et inférieure (55).
  3. Luminaire (10) selon la revendication 2, dans lequel le segment luminescent (47) est le long d'un axe orienté entre environ ± 15° par rapport à la verticale.
  4. Luminaire (10) selon la revendication 3, dans lequel la portion centrale segmentée (59) a des segments paraboliques avant (73), central (75) et arrière (77) et dans lequel le segment parabolique avant a son point focal dans la région centrale (53), le segment parabolique central a son point focal dans la région supérieure (51), et le segment parabolique arrière a son point focal dans la région inférieure (55).
  5. Luminaire (10) selon la revendication 5, dans lequel le luminaire (10) a un nadir (70) le long d'un axe vertical bissectant le segment luminescent (47), et chacun des segments paraboliques avant (73), central (75) et arrière (77) a un grand axe (73a, 75a, 77a) à l'avant du nadir (70), et dans lequel le grand axe de segment parabolique central (75a) est orienté à l'avant du grand axe de segment parabolique avant (73a) et le grand axe de segment parabolique arrière (77a) est orienté à l'avant du grand axe de segment parabolique central (75a).
  6. Luminaire (10) selon la revendication 5, dans lequel :
    le grand axe de segment parabolique avant (73a) est orienté à environ 10° à l'avant du nadir (70) ;
    le grand axe de segment parabolique central (75a) est orienté à environ 12° à l'avant du nadir (70) ; et
    le grand axe de segment parabolique arrière (77a) est orienté à environ 34° à l'avant du nadir (70).
  7. Luminaire (10) selon la revendication 5, dans lequel chacune des portions latérales segmentées (61, 63) a des sections avant (85, 93), intermédiaires (87, 89 ; 95, 97) et arrière (91, 99).
  8. Luminaire (10) selon la revendication 7, dans lequel chaque portion latérale segmentée (61, 63) est tridimensionnelle.
  9. Luminaire (10) selon la revendication 8, dans lequel chacune des sections avant (85, 93), intermédiaires (87, 89 ; 95, 97) et arrière (91, 99) a un segment parabolique bidimensionnel supérieur et inférieur.
  10. Luminaire (10) selon la revendication 9, dans lequel chaque segment parabolique a un grand axe orienté latéralement vers l'extérieur par rapport au nadir (70) et latéralement vers l'extérieur par rapport à un axe horizontal (170) bissectant symétriquement le panneau réflecteur (11), et lequel :
    chaque grand axe de segment inférieur est orienté latéralement vers l'extérieur par rapport au nadir (70) à un angle plus grand que chaque grand axe de segment supérieur ;
    chaque grand axe de segment intermédiaire est orienté latéralement vers l'extérieur par rapport à l'axe horizontal (170) à un angle plus grand que chaque grand axe de segment arrière ; et
    chaque grand axe de segment avant est orienté latéralement vers l'extérieur par rapport à l'axe horizontal (170) à un angle plus grand que chaque grand axe de segment intermédiaire.
  11. Luminaire (10) selon la revendication 10, dans lequel chaque portion latérale segmentée (61, 63) a une paire de sections intermédiaires (87, 89 ; 95, 97).
  12. Luminaire (10) selon la revendication 9, dans lequel :
    chaque grand axe de segment inférieur est orienté latéralement vers l'extérieur par rapport au nadir (70) à environ 55° et chaque grand axe de segment supérieur est orienté latéralement vers l'extérieur par rapport au nadir (70) à environ 40° ;
    chaque grand axe de segment avant est orienté latéralement vers l'extérieur par rapport à l'axe horizontal (170) à un angle d'environ 81° ;
    chaque grand axe de segment intermédiaire est orienté latéralement vers l'extérieur par rapport à l'axe horizontal (170) à un angle entre environ 71° et 69° ; et
    chaque grand axe de segment arrière est orienté latéralement vers l'extérieur par rapport à l'axe horizontal (170) à un angle d'environ 64°.
  13. Luminaire (10) selon la revendication 1, dans lequel l'ouverture inférieure de boîtier (33) se situe dans un plan (34) et le support de lampe est positionné dans le boîtier (17) de sorte qu'une lampe (19) montée dans celle-ci soit entièrement au-dessus du plan (34).
  14. Luminaire (10) selon la revendication 1, dans lequel le boîtier (17) comporte en outre un côté arrière (32) et un écran (15) s'étendant vers le bas à partir du côté arrière (32) sous le plan (34) pour limiter un déborde lumière vers l'arrière du luminaire (10).
  15. Luminaire (10) selon la revendication 1 ou 9, dans lequel chaque segment parabolique de portion centrale ou chaque segment parabolique de portion latérale comprend un ou plusieurs segments circulaires pour approximer la forme de segment parabolique.
  16. Luminaire (10) selon la revendication 1, dans lequel la portion centrale segmentée (59) et les première et seconde portions latérales (61, 63) sont chacune constituées d'une pièce de matière séparée.
  17. Luminaire (10) selon la revendication 16, dans lequel chaque pièce de matière a un côté intérieur dirigé vers le support de lampe et le côté intérieur comporte un revêtement métallisé sur celui-ci.
EP07795212A 2007-05-23 2007-05-23 Luminaire avec reflecteur parabolique composite Not-in-force EP2147247B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/012256 WO2008150254A1 (fr) 2007-05-23 2007-05-23 Luminaire avec réflecteur parabolique composite

Publications (3)

Publication Number Publication Date
EP2147247A1 EP2147247A1 (fr) 2010-01-27
EP2147247A4 EP2147247A4 (fr) 2011-03-30
EP2147247B1 true EP2147247B1 (fr) 2012-11-07

Family

ID=40093939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07795212A Not-in-force EP2147247B1 (fr) 2007-05-23 2007-05-23 Luminaire avec reflecteur parabolique composite

Country Status (5)

Country Link
EP (1) EP2147247B1 (fr)
AU (1) AU2007354673B2 (fr)
CA (1) CA2688071C (fr)
ES (1) ES2394370T3 (fr)
WO (1) WO2008150254A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018116809A1 (de) * 2018-07-11 2020-01-16 Itz Innovations- Und Technologiezentrum Gmbh Variabel anpassbare Mastaußenleuchte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE679203C (de) * 1935-06-18 1939-07-31 Zeiss Ikon A G Goerz Werk Reflektor zur Erzeugung eines Ianggestreckten Lichtfeldes
GB478261A (en) * 1936-07-16 1938-01-17 Herbert Biggleston Improvements in or relating to lighting fittings
US4242727A (en) * 1979-03-29 1980-12-30 Gte Products Corporation Luminaire reflector
US4358816A (en) * 1980-09-05 1982-11-09 General Electric Company Roadway luminaire
US6338564B1 (en) * 2000-02-28 2002-01-15 Hubbell Incorporated Optical housing with vertical light source

Also Published As

Publication number Publication date
AU2007354673A1 (en) 2008-12-11
EP2147247A1 (fr) 2010-01-27
ES2394370T3 (es) 2013-01-31
WO2008150254A1 (fr) 2008-12-11
CA2688071A1 (fr) 2008-12-11
AU2007354673B2 (en) 2013-05-02
EP2147247A4 (fr) 2011-03-30
CA2688071C (fr) 2014-04-22

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