WO2013030814A3 - A display cabinet luminaire with directional illumination - Google Patents

A display cabinet luminaire with directional illumination Download PDF

Info

Publication number
WO2013030814A3
WO2013030814A3 PCT/IE2012/000042 IE2012000042W WO2013030814A3 WO 2013030814 A3 WO2013030814 A3 WO 2013030814A3 IE 2012000042 W IE2012000042 W IE 2012000042W WO 2013030814 A3 WO2013030814 A3 WO 2013030814A3
Authority
WO
WIPO (PCT)
Prior art keywords
leds
housing
reflector
along
end view
Prior art date
Application number
PCT/IE2012/000042
Other languages
French (fr)
Other versions
WO2013030814A2 (en
Inventor
Vincent Guenebaut
Tomas HENNESY
Andrew John O'riordan
John O'brien
Original Assignee
Nualight Limited
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 Nualight Limited filed Critical Nualight Limited
Priority to EP12759831.6A priority Critical patent/EP2751477B1/en
Priority to PL12759831T priority patent/PL2751477T3/en
Priority to ES12759831.6T priority patent/ES2673287T3/en
Publication of WO2013030814A2 publication Critical patent/WO2013030814A2/en
Publication of WO2013030814A3 publication Critical patent/WO2013030814A3/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
    • F21V7/05—Optical design plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

A luminaire (1) comprises an extruded aluminium housing (2) which is generally L-shaped, with a web forming a base (3) with an integral platform (4) supporting an LED substrate (5). The latter supports a linear array of LEDs, namely a series of LEDs (6) along a front side, and a drive circuit 7 along part of a rear side. A planar elongate rectangular reflector (14) is supported on a series of cradles (10) on the substrates (5). Each cradle (10) comprises a pair of aligned clips of Cu material. The top of the reflector (14) has a lip (16) which is turned in the direction over the circuit (7) to engage the housing (2) to be retained securely in place. The housing (2) also includes a web forming a rear wall (8), so that the housing (2) forms a generally L-shaped configuration in end view. The reflector (14) is at an obtuse angle to the substrate on the LED side. This provides comprehensive reflection of light in the space directly above the LEDs, weighting the light emission in this direction. It is particularly suited to illumination of a goods display plane, either vertical or horizontal, in a retail cabinet. Because the directionality is achieved by a mirror which is beside the LEDs and below the diffuser there is excellent directionality as viewed in end view (Fig. 7) and at the same time excellent diffusion for uniformity along the length dimension.
PCT/IE2012/000042 2011-08-30 2012-08-30 A display cabinet luminaire with directional illumination WO2013030814A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12759831.6A EP2751477B1 (en) 2011-08-30 2012-08-30 A display cabinet luminaire with directional illumination
PL12759831T PL2751477T3 (en) 2011-08-30 2012-08-30 A display cabinet luminaire with directional illumination
ES12759831.6T ES2673287T3 (en) 2011-08-30 2012-08-30 Display cabinet luminaire with directional lighting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE2011/0385 2011-08-30
IE20110385 2011-08-30

Publications (2)

Publication Number Publication Date
WO2013030814A2 WO2013030814A2 (en) 2013-03-07
WO2013030814A3 true WO2013030814A3 (en) 2013-05-02

Family

ID=46875929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE2012/000042 WO2013030814A2 (en) 2011-08-30 2012-08-30 A display cabinet luminaire with directional illumination

Country Status (4)

Country Link
EP (1) EP2751477B1 (en)
ES (1) ES2673287T3 (en)
PL (1) PL2751477T3 (en)
WO (1) WO2013030814A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9874344B2 (en) 2013-05-10 2018-01-23 Krueger International, Inc. Accent lighting for demountable wall system
CN106402723B (en) * 2015-08-03 2019-05-03 通用电气照明解决方案有限公司 A kind of LED lamp
IT201800005003A1 (en) * 2018-05-02 2019-11-02 Led lighting device.
WO2023169820A1 (en) 2022-03-07 2023-09-14 Signify Holding B.V. Luminaire arrangement and method for assembling such luminaire arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030137828A1 (en) * 2002-01-10 2003-07-24 Artak Ter-Hovhannisian Low temperature led lighting system
US20050265019A1 (en) * 2004-05-26 2005-12-01 Gelcore Llc LED lighting systems for product display cases
US20100214785A1 (en) * 2009-02-23 2010-08-26 Chen Hui Yu Waterproof lighting fixture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047335A1 (en) 2006-10-19 2008-04-24 Nualight Limited Improvements in display case luminaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030137828A1 (en) * 2002-01-10 2003-07-24 Artak Ter-Hovhannisian Low temperature led lighting system
US20050265019A1 (en) * 2004-05-26 2005-12-01 Gelcore Llc LED lighting systems for product display cases
US20100214785A1 (en) * 2009-02-23 2010-08-26 Chen Hui Yu Waterproof lighting fixture

Also Published As

Publication number Publication date
EP2751477B1 (en) 2018-04-25
WO2013030814A2 (en) 2013-03-07
PL2751477T3 (en) 2018-10-31
ES2673287T3 (en) 2018-06-21
EP2751477A2 (en) 2014-07-09

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