EP2365243B1 - Leuchte - Google Patents

Leuchte Download PDF

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Publication number
EP2365243B1
EP2365243B1 EP11155286.5A EP11155286A EP2365243B1 EP 2365243 B1 EP2365243 B1 EP 2365243B1 EP 11155286 A EP11155286 A EP 11155286A EP 2365243 B1 EP2365243 B1 EP 2365243B1
Authority
EP
European Patent Office
Prior art keywords
leds
lamp
adjacent
lens
lenses
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
EP11155286.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2365243A1 (de
Inventor
Markus Kocks
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.)
RIDI Leuchten GmbH
Original Assignee
RIDI Leuchten GmbH
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 RIDI Leuchten GmbH filed Critical RIDI Leuchten GmbH
Priority to PL11155286T priority Critical patent/PL2365243T3/pl
Publication of EP2365243A1 publication Critical patent/EP2365243A1/de
Application granted granted Critical
Publication of EP2365243B1 publication Critical patent/EP2365243B1/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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/006—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting for direct lighting only, e.g. task lighting
    • 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
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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]

Definitions

  • the invention relates to a luminaire according to the preamble of claim 1.
  • the luminaire according to the invention may be a floor lamp, a wall lamp or a ceiling lamp. Specifically, this luminaire has the task of a standard compliant illumination of a workplace.
  • LED lights which are arranged in a luminaire housing LEDs. It is also known to arrange the LEDs in a field so that the LEDs define a light field. Finally, it is known that the LEDs are each assigned a lens.
  • a luminaire which has a luminaire housing as well as a field of LEDs arranged in the luminaire housing.
  • the LEDs are each assigned a lens.
  • the lenses of the LEDs are designed such that the light emitted by the LEDs illuminates a sharply defined area.
  • the LEDs associated with a common, one-piece lens body, wherein in the region of the LEDs in each case a lens is formed in the lens body.
  • the lens body has between two longitudinally adjacent lenses on a connecting portion which connects the two adjacent lenses together.
  • the lens body has a plurality of rows of lenses, in each of which several adjacent in a transverse direction Lenses are formed, wherein the respective connecting portion connects two longitudinally adjacent lens rows together.
  • the WO 2008/125772 A1 discloses a lamp with a curved lens body.
  • the WO 2009/104067 A1 shows a street lamp with a variety of separate lights, each containing a series of LEDs as lamps.
  • the present invention seeks to provide a lamp of the type specified for standard-compliant illumination of a workplace, which requires as little energy and has a compact and inexpensive realizable structure.
  • the luminaire according to the invention is comparatively compact and can be produced relatively inexpensively due to the high degree of integration.
  • the basic idea is that the entire usable light of the LEDs is directed to the work surface by means of the lenses. This is achieved by a so-called freeform optics. This is understood to mean that the lenses associated with the LEDs are shaped in such a way that they optically reproduce the light emitted by their LEDs exactly on the work surface.
  • a common, one-piece lens body is provided for all LEDs.
  • the lenses in the form of the aforementioned free-form optics are then each formed in the region of the LEDs.
  • the lens body between two adjacent in a longitudinal direction of the lenses has a connecting portion which connects the two adjacent lenses together. If more than two lenses are adjacent in the longitudinal direction, a corresponding number of connecting sections is provided.
  • the connecting portions the geometry of the lens body can be adapted to save material to the respective arrangement of the LEDs.
  • the respective connecting portion is made thin compared to a lens.
  • "thin" means a comparatively small dimension in the main emission direction of the light or in the optical axis of the respective lens.
  • the lens body has a plurality of rows of lenses, in each of which a plurality of adjacent in a transverse direction lenses are formed. This allows a geometrically simple structure for the lens body can be realized. In this case, two lens rows adjacent in the longitudinal direction are again connected to one another via an aforementioned connecting section.
  • the LEDs adjacent in a longitudinal direction are each arranged in an LED plane which is inclined with respect to the longitudinal direction.
  • the emission direction of the LEDs can be inclined relative to the longitudinal direction determined by the geometry of the luminaire housing, which improves the illumination of the working area.
  • the LED levels can run parallel to each other.
  • the LEDs adjacent in a transverse direction may be arranged in the same LED plane.
  • the invention proposes, in each case, to arrange and / or orient the lenses, which are adjacent in the longitudinal direction, in the lens body parallel to the LED planes.
  • the optical axis of the respective lens is perpendicular to the respective LED level.
  • the one-piece lens body takes into account the inclination of the LEDs, which simplifies assembly.
  • a plurality of LEDs adjacent in a transverse direction may be disposed on a common board.
  • a common board is attached to the respective, above-mentioned lens row, so that the boards and the lens body form a preassembled lamp unit, which is mounted on the lamp housing.
  • the lighting unit can be mounted as a whole on the lamp housing.
  • the orientation of the lamp is changeable. This means that the location of the illumination can be changed within certain limits. Thus, starting from a fixed position of the lamp changes in the illumination surface are possible, so that a certain variability is ensured.
  • the orientation can be such that the block with the LEDs can be rotated about a central center axis. As a result, the radiation of the light sweeps over a cone sheath during a rotation. But it is also conceivable that the LED assembly can be gimbaled, so that an even greater variety of variation of the settings is realized.
  • a lamp 13 As in Fig. 1 is shown, it is a floor lamp. This has a luminaire housing 1.
  • the Luminaire 13 also has a lamp base 14 and a lamp rod 15 which connects the lamp base 13 with the lamp housing 1.
  • a field of LEDs 2 is arranged in the luminaire housing 1.
  • the field is designed rectangular and contains by way of example three times four LEDs 2.
  • each LED 2 is associated with a lens 3. This serves as an optic for the light emitted by the LED 2 light.
  • each LED 2 can be assigned a separate lens 3.
  • a common, one-piece lens body 5 is assigned to all the LEDs 2, wherein in the area of the LEDs 2 a respective lens 3 is formed in the lens body 5.
  • the lens body 5 has between two adjacent in a longitudinal direction 6 of the lamp housing 1 lenses 3, a connecting portion 7, which connects the two adjacent lenses 3 together.
  • the respective connecting portion 7 is - seen in the direction of the optical axis of the respective lens 3 - thin compared to a lens.
  • the lens body 5 has a plurality of lens rows 8, in each of which a plurality of adjacent lenses 3 are formed in a transversely extending to the longitudinal direction transverse direction 9 of the lamp housing 1.
  • a plurality of adjacent lenses 3 are formed in a transversely extending to the longitudinal direction transverse direction 9 of the lamp housing 1.
  • four such rows of lenses are provided, in each case three lenses 3 are arranged side by side.
  • the respective connecting section 7 expediently connects two adjacent rows of lenses 8 in the longitudinal direction 6.
  • a plurality of LEDs 2 adjacent in the transverse direction 9 are arranged on a common circuit board 10.
  • the respective board 10 is attached to the respective lens row 8, such that the boards 10 and the lens body 5 form a preassemblable lamp unit 11 which is mounted on the lamp housing 1 as a whole.
  • the light of the lamp 13 is blinding.
  • the orientation of the lamp 13 is suitably changeable.
  • the LEDs 2 adjacent in the longitudinal direction 6 are each arranged in an LED plane 12, which is inclined with respect to the longitudinal direction 6.
  • the lenses 3 adjacent to one another in the longitudinal direction 6 in the lens body 5 are each arranged and / or oriented parallel to the LED planes 12 such that their respective optical axis runs perpendicular to said LED plane 12.
  • the LED levels 12 are parallel to each other.
  • the LEDs 2 adjacent in the transverse direction 9 are arranged in the same LED plane 12.
  • the basic principle is that the lenses 3 are designed as so-called free-form optics. This means that the lenses 3 focus the light emitted by their LEDs 2 exactly on a defined surface 4, namely the surface of the workplace. An existing radiation beyond the predetermined by the lenses 3 radiation angle is not given. Ultimately, this means that the workplace is illuminated exactly with a sharply delimited lighting edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP11155286.5A 2010-03-09 2011-02-22 Leuchte Not-in-force EP2365243B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11155286T PL2365243T3 (pl) 2010-03-09 2011-02-22 Lampa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010003313U DE202010003313U1 (de) 2010-03-09 2010-03-09 Leuchte

Publications (2)

Publication Number Publication Date
EP2365243A1 EP2365243A1 (de) 2011-09-14
EP2365243B1 true EP2365243B1 (de) 2014-10-29

Family

ID=44002271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155286.5A Not-in-force EP2365243B1 (de) 2010-03-09 2011-02-22 Leuchte

Country Status (3)

Country Link
EP (1) EP2365243B1 (pl)
DE (1) DE202010003313U1 (pl)
PL (1) PL2365243T3 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512105B1 (de) 2011-10-17 2013-08-15 Heper Moonlight Europ Gmbh Leuchtmittel
DE202012103048U1 (de) * 2012-08-13 2013-11-14 Zumtobel Lighting Gmbh Stehleuchte zum Beleuchten eines Arbeitsplatzes
DE202016107411U1 (de) * 2016-12-28 2018-04-03 Zumtobel Lighting Gmbh Refraktive Optik mit Freiformkörper

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051382A1 (de) * 2004-10-21 2006-04-27 Oec Ag Mikrolinsenarray
US7918583B2 (en) * 2006-08-16 2011-04-05 Rpc Photonics, Inc. Illumination devices
US7665862B2 (en) * 2006-09-12 2010-02-23 Cree, Inc. LED lighting fixture
US7736019B2 (en) * 2006-10-10 2010-06-15 Yanchers Corporation Lighting system
ATE535757T1 (de) * 2007-03-08 2011-12-15 Lyracom Led-beleuchtungsvorrichtung
NL2000996C2 (nl) * 2007-11-12 2008-09-15 Ind Tech Verlichting B V Van leds voorzien verlichtingsarmatuur voor verlichting van buiten gelegen openbare ruimten.
DE102008006229B4 (de) * 2008-01-25 2013-08-29 We-Ef Leuchten Gmbh & Co. Kg Straßenbeleuchtungseinrichtung
ITUD20080032A1 (it) * 2008-02-18 2009-08-19 Gpe Srl Dispositivo di illuminazione stradale a led, e procedimento di fabbricazione

Also Published As

Publication number Publication date
DE202010003313U1 (de) 2011-08-26
EP2365243A1 (de) 2011-09-14
PL2365243T3 (pl) 2015-06-30

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