EP2147247B1 - Leuchte mit einem verbund-parabolreflektor - Google Patents

Leuchte mit einem verbund-parabolreflektor 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
English (en)
French (fr)
Other versions
EP2147247A1 (de
EP2147247A4 (de
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/de
Publication of EP2147247A4 publication Critical patent/EP2147247A4/de
Application granted granted Critical
Publication of EP2147247B1 publication Critical patent/EP2147247B1/de
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.

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

Claims (17)

  1. Leuchte (10), zum Beleuchten eines Zielbereichs (13), der mehrere Unterregionen (133, 135, 137) vor und seitlich der Leuchte (10) umfasst, wobei die Leuchte (10) aufweist:
    ein Gehäuse (17) mit Wänden (25, 27, 29), die eine Bodenöffnung (33) definieren, wobei die Bodenöffnung (33) in einer im Allgemeinen horizontalen Ebene (34) liegt;
    eine Leuchtmittelhaltevorrichtung (31) in dem Gehäuse (17), die derart angeordnet ist, um ein elektrisches Leuchtmittel (19) in einer im Wesentlichen vertikalen Ausrichtung zu tragen; und
    einen Reflektor (11) in dem Gehäuse (17), der das Leuchtmittel (19) teilweise umgibt,
    dadurch gekennzeichnet, dass
    das Leuchtmittel (19) ein im Allgemeinen axiales, Licht emittierendes Segment (47) aufweist, das mehrere Regionen (51, 53, 55) umfasst,
    und dass der Reflektor (11) umfasst:
    einen segmentierten zentralen Abschnitt (59) mit ersten und zweiten Seitenrändern (65, 67) und einer ersten Mehrzahl von zentralen Segmenten (73, 75, 77), von denen jedes im Querschnitt parabolisch ist, wobei die parabolischen Querschnitte der Segmente (73, 75, 77) Brennpunkte (79, 81, 83) in unterschiedlichen der mehreren Regionen (51, 53, 55) aufweist, so dass jedes Segment (73, 75, 77) einen überwiegenden Teil seines reflektierten Lichts auf eine bestimmte Unterregion (133, 135, 137) des Zielbereichs vor der Leuchte (10) richtet; und
    ein Paar von segmentierten Seitenabschnitten (61, 63), die jeweils mit dem zentralen Abschnitt (59) entlang eines entsprechenden Seitenrandes (65, 67) verbunden sind, wobei jeder Seitenabschnitt (61, 63) eine zweite Mehrzahl von Seitensegmenten (101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131) aufweist, die jeweils im Querschnitt parabolisch sind, wobei die parabolischen Querschnitte der Segmente Brennpunkte (138) entlang des Ortes des Licht emittierenden Segments (47) aufweisen, so dass jedes Segment einen überwiegenden Teil seines reflektierten Lichts auf eine bestimmte Unterregion (133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169) des Zielbereichs (13) auf einer entsprechenden Seite der Leuchte (10) richtet.
  2. Leuchte (10) nach Anspruch 1, wobei die mehreren Regionen obere (51), zentrale (53) und untere (55) Regionen umfassen.
  3. Leuchte (10) nach Anspruch 2, wobei das Licht emittierende Segment (47) sich entlang einer Achse befindet, die zwischen etwa ± 15° aus der Vertikalen ausgerichtet ist.
  4. Leuchte (10) nach Anspruch 3, wobei der segmentierte zentrale Abschnitt (59) vordere (73), mittlere (75) und hintere (77) parabolische Segmente aufweist und wobei das vordere parabolische Segment seinen Brennpunkt in der zentralen Region (53), das mittlere parabolische Segment seinen Brennpunkt in der oberen Region (51) und das hintere parabolische Segment seinen Brennpunkt in der unteren Region (55) hat.
  5. Leuchte (10) nach Anspruch 4, wobei die Leuchte (10) einen Nadir (70) entlang einer vertikalen Achse aufweist, die das Licht emittierende Segment (47) halbiert, und wobei jedes der vorderen (73), mittleren (75) und hinteren (77) parabolischen Segmente eine Hauptachse (73a, 75a, 77a) vor dem Nadir (70) aufweist, und wobei die Hauptachse (75a) des mittleren parabolischen Segmentes vor der Hauptachse (73a) des vorderen parabolischen Segmentes ausgerichtet ist, und wobei die Hauptachse (77a) des hinteren parabolischen Segments vor der Hauptachse (75a) des mittleren parabolischen Segments ausgerichtet ist.
  6. Leuchte (10) nach Anspruch 5, wobei:
    die Hauptachse (73a) des vorderen parabolischen Segments um etwa 10° vor dem Nadir (70) ausgerichtet ist;
    die Hauptachse (75a) des mittleren parabolischen Segments um etwa 12° vor dem Nadir (70) ausgerichtet ist; und
    die Hauptachse (77a) des hinteren parabolischen Segments um etwa 34° vor dem Nadir (70) ausgerichtet ist.
  7. Leuchte (10) nach Anspruch 5, wobei jeder der segmentierten Seitenabschnitte (61, 63) vordere (85, 93), mittlere (87, 89; 95, 97) und hintere (91, 99) Bereiche aufweist.
  8. Leuchte (10) nach Anspruch 7, wobei jeder der segmentierten Seitenabschnitte (61, 63) dreidimensional ist.
  9. Leuchte (10) nach Anspruch 8, wobei jeder der vorderen (85, 93), mittleren (87, 89; 95, 97) und hinteren (91, 99) Bereiche ein oberes und ein unteres zweidimensionales parabolisches Segment aufweist.
  10. Leuchte (10) nach Anspruch 9, wobei jedes parabolische Segment eine Hauptachse aufweist, die seitlich von dem Nadir (70) nach außen und seitlich von einer horizontalen Achse (170) nach außen ausgerichtet ist, die das Reflektorpanel (11) symmetrisch halbiert, und wobei:
    jede Hauptachse des unteren Segments seitlich nach außen von dem Nadir (70) in einem größeren Winkel ausgerichtet ist als jede der Hauptachsen des oberen Segments;
    jede Hauptachse des mittleren Segments seitlich nach außen von der horizontalen Achse (170) in einem größeren Winkel ausgerichtet ist als jede der Hauptachsen des hinteren Segments; und
    jede Hauptachse des vorderen Segments seitlich nach außen von der horizontalen Achse (170) in einem größeren Winkel ausgerichtet ist als jede der Hauptachsen des mittleren Segments.
  11. Leuchte (10) nach Anspruch 10, wobei jeder segmentierte Seitenabschnitt (61, 63) ein Paar von mittleren Bereichen (87, 89; 95, 97) aufweist.
  12. Leuchte (10) nach Anspruch 9, wobei:
    jede Hauptachse des unteren Segments seitlich nach außen von dem Nadir (70) um etwa 55° ausgerichtet ist und jede Hauptachse des oberen Segments seitlich nach außen von dem Nadir (70) um etwa 40 ausgerichtet ist;
    jede Hauptachse des vorderen Segments seitlich nach außen von der horizontalen Achse (170) in einem Winkel von etwa 81 ° ausgerichtet ist;
    jede Hauptachse des mittleren Segments seitlich nach außen von der horizontalen Achse (170) in einem Winkel von zwischen etwa 71° und 69° ausgerichtet ist und;
    jede Hauptachse des hinteren Segments seitlich nach außen von der horizontalen Achse (170) in einem Winkel von etwa 64° ausgerichtet ist.
  13. Leuchte (10) nach Anspruch 1, wobei die untere Öffnung (33) des Gehäuses in einer Ebene (34) liegt und die Leuchtmittelhaltevorrichtung in dem Gehäuse (17) angeordnet ist, so dass ein Leuchtmittel (19), das darin befestigt ist, vollständig oberhalb der Ebene (34) liegt.
  14. Leuchte (10) nach Anspruch 1, wobei das Gehäuse (17) des Weiteren eine Rückseite (32) und ein Abschirmelement (15) aufweist, das sich von der Rückseite (32) unterhalb der Ebene (34) nach unten erstreckt, um die Lichtstreuung auf der Rückseite der Leuchte (10) zu begrenzen.
  15. Leuchte (10) nach Anspruch 1 oder 9, wobei jedes parabolische Segment des mittleren Abschnitts oder jedes parabolische Segment der Seitenabschnitte ein oder mehrere kreisförmige Segmente aufweist, um sich einer parabolischen Segmentform anzunähern.
  16. Leuchte (10) nach Anspruch 1, wobei der segmentierte zentrale Abschnitt (59) und erste und zweite Seitenabschnitte (61, 63) jeweils aus einem einzelnen Materialstück ausgebildet sind.
  17. Leuchte (10) nach Anspruch 16, wobei jedes Materialstück eine Innenseite aufweist, die der Leuchtmittelhaltevorrichtung gegenüber liegt und wobei die Innenseite darauf eine metallisierte Beschichtung darauf aufweist.
EP07795212A 2007-05-23 2007-05-23 Leuchte mit einem verbund-parabolreflektor Not-in-force EP2147247B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/012256 WO2008150254A1 (en) 2007-05-23 2007-05-23 Luminaire with a compound parabolic reflector

Publications (3)

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

Family

ID=40093939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07795212A Not-in-force EP2147247B1 (de) 2007-05-23 2007-05-23 Leuchte mit einem verbund-parabolreflektor

Country Status (5)

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

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

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