EP1847762A3 - Compact lighting device, in particular for use in a dental lamp - Google Patents

Compact lighting device, in particular for use in a dental lamp Download PDF

Info

Publication number
EP1847762A3
EP1847762A3 EP07106219A EP07106219A EP1847762A3 EP 1847762 A3 EP1847762 A3 EP 1847762A3 EP 07106219 A EP07106219 A EP 07106219A EP 07106219 A EP07106219 A EP 07106219A EP 1847762 A3 EP1847762 A3 EP 1847762A3
Authority
EP
European Patent Office
Prior art keywords
lighting device
ellipsoid
dental lamp
led light
compact lighting
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.)
Granted
Application number
EP07106219A
Other languages
German (de)
French (fr)
Other versions
EP1847762B1 (en
EP1847762A2 (en
Inventor
Angelo Favonio
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.)
F A R O FABBRICA APPARECCHIATURE RAZIONALI ODONTOIATRICHE SpA
Faro SpA
Original Assignee
F A R O FABBRICA APPARECCHIATURE RAZIONALI ODONTOIATRICHE SpA
Faro SpA
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
Priority claimed from ITMI20060770 external-priority patent/ITMI20060770A1/en
Priority claimed from ITMI20061812 external-priority patent/ITMI20061812A1/en
Application filed by F A R O FABBRICA APPARECCHIATURE RAZIONALI ODONTOIATRICHE SpA, Faro SpA filed Critical F A R O FABBRICA APPARECCHIATURE RAZIONALI ODONTOIATRICHE SpA
Priority to PL07106219T priority Critical patent/PL1847762T3/en
Publication of EP1847762A2 publication Critical patent/EP1847762A2/en
Publication of EP1847762A3 publication Critical patent/EP1847762A3/en
Application granted granted Critical
Publication of EP1847762B1 publication Critical patent/EP1847762B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F21V7/0008—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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/777—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/40—Hand grips
    • 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
    • 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
    • F21W2131/20—Lighting for medical use
    • F21W2131/202—Lighting for medical use for dentistry
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A lighting device (10), in particular for use in a dental lamp, characterised in that it comprises one or more optical groups, each of which comprises an LED light source (11), a collimation group (12) and a reflector (13), the collimation groups (12) being arranged close to the respective LED light sources (11) and converging the light radiation coming from them in respective cones, the vertices of which are located close to a common point, which defines the first focus of an ellipsoid, and which intersect the surface of the ellipsoid defining respective areas, at which the respective reflectors (13) are arranged, the surfaces of which come near to that of said ellipsoid.
EP07106219A 2006-04-19 2007-04-16 Compact lighting device, in particular for use in a dental lamp Active EP1847762B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07106219T PL1847762T3 (en) 2006-04-19 2007-04-16 Compact lighting device, in particular for use in a dental lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20060770 ITMI20060770A1 (en) 2006-04-19 2006-04-19 LIGHTING DEVICE, IN PARTICULAR FOR USE IN A DENTAL LAMP
ITMI20061812 ITMI20061812A1 (en) 2006-09-26 2006-09-26 COMPACT LIGHTING DEVICE, IN PARTICULAR FOR USE IN A DENTAL LAMP

Publications (3)

Publication Number Publication Date
EP1847762A2 EP1847762A2 (en) 2007-10-24
EP1847762A3 true EP1847762A3 (en) 2008-08-27
EP1847762B1 EP1847762B1 (en) 2009-07-08

Family

ID=38255108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106219A Active EP1847762B1 (en) 2006-04-19 2007-04-16 Compact lighting device, in particular for use in a dental lamp

Country Status (6)

Country Link
EP (1) EP1847762B1 (en)
AT (1) ATE435997T1 (en)
DE (1) DE602007001479D1 (en)
ES (1) ES2330054T3 (en)
HK (1) HK1105223A1 (en)
PL (1) PL1847762T3 (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8376578B2 (en) 2009-06-12 2013-02-19 Lg Innotek Co., Ltd. Lighting device
CN101936469B (en) * 2009-06-29 2014-10-22 Lg伊诺特有限公司 Lighting device
DE202010002125U1 (en) * 2010-02-10 2011-08-30 Zumtobel Lighting Gmbh Arrangement for emitting light with punctiform light sources and reflector
DE202010003751U1 (en) * 2010-03-17 2011-07-26 Zumtobel Lighting Gmbh Luminaire for generating a variable indirect lighting
DE202010016955U1 (en) 2010-05-20 2011-08-31 Auer Lighting Gmbh Reflector luminaire with at least two light-emitting diode light sources
CN101893187B (en) * 2010-06-22 2013-04-03 上海理工大学 LED mouth lamp optical system
US10883702B2 (en) * 2010-08-31 2021-01-05 Ideal Industries Lighting Llc Troffer-style fixture
US9494293B2 (en) 2010-12-06 2016-11-15 Cree, Inc. Troffer-style optical assembly
US9581312B2 (en) 2010-12-06 2017-02-28 Cree, Inc. LED light fixtures having elongated prismatic lenses
US9822951B2 (en) 2010-12-06 2017-11-21 Cree, Inc. LED retrofit lens for fluorescent tube
US10309627B2 (en) 2012-11-08 2019-06-04 Cree, Inc. Light fixture retrofit kit with integrated light bar
USD667983S1 (en) 2011-03-09 2012-09-25 Cree, Inc. Troffer-style lighting fixture
USD667156S1 (en) 2011-03-09 2012-09-11 Cree, Inc. Troffer-style lighting fixture
CN102878444B (en) 2011-07-15 2017-01-18 欧司朗股份有限公司 Light source unit, light engine with light source unit and illumination device
US10823347B2 (en) 2011-07-24 2020-11-03 Ideal Industries Lighting Llc Modular indirect suspended/ceiling mount fixture
US9423117B2 (en) 2011-12-30 2016-08-23 Cree, Inc. LED fixture with heat pipe
US10544925B2 (en) 2012-01-06 2020-01-28 Ideal Industries Lighting Llc Mounting system for retrofit light installation into existing light fixtures
US8870417B2 (en) 2012-02-02 2014-10-28 Cree, Inc. Semi-indirect aisle lighting fixture
US9777897B2 (en) 2012-02-07 2017-10-03 Cree, Inc. Multiple panel troffer-style fixture
US8905575B2 (en) 2012-02-09 2014-12-09 Cree, Inc. Troffer-style lighting fixture with specular reflector
US9310038B2 (en) 2012-03-23 2016-04-12 Cree, Inc. LED fixture with integrated driver circuitry
US10054274B2 (en) 2012-03-23 2018-08-21 Cree, Inc. Direct attach ceiling-mounted solid state downlights
US9494294B2 (en) 2012-03-23 2016-11-15 Cree, Inc. Modular indirect troffer
US9360185B2 (en) 2012-04-09 2016-06-07 Cree, Inc. Variable beam angle directional lighting fixture assembly
US9874322B2 (en) 2012-04-10 2018-01-23 Cree, Inc. Lensed troffer-style light fixture
US9285099B2 (en) 2012-04-23 2016-03-15 Cree, Inc. Parabolic troffer-style light fixture
US9488330B2 (en) 2012-04-23 2016-11-08 Cree, Inc. Direct aisle lighter
US8931929B2 (en) 2012-07-09 2015-01-13 Cree, Inc. Light emitting diode primary optic for beam shaping
US9441818B2 (en) 2012-11-08 2016-09-13 Cree, Inc. Uplight with suspended fixture
US9494304B2 (en) 2012-11-08 2016-11-15 Cree, Inc. Recessed light fixture retrofit kit
US9482396B2 (en) 2012-11-08 2016-11-01 Cree, Inc. Integrated linear light engine
US10648643B2 (en) 2013-03-14 2020-05-12 Ideal Industries Lighting Llc Door frame troffer
US9423104B2 (en) 2013-03-14 2016-08-23 Cree, Inc. Linear solid state lighting fixture with asymmetric light distribution
US9052075B2 (en) 2013-03-15 2015-06-09 Cree, Inc. Standardized troffer fixture
USD786471S1 (en) 2013-09-06 2017-05-09 Cree, Inc. Troffer-style light fixture
US10451253B2 (en) 2014-02-02 2019-10-22 Ideal Industries Lighting Llc Troffer-style fixture with LED strips
USD772465S1 (en) 2014-02-02 2016-11-22 Cree Hong Kong Limited Troffer-style fixture
USD807556S1 (en) 2014-02-02 2018-01-09 Cree Hong Kong Limited Troffer-style fixture
USD749768S1 (en) 2014-02-06 2016-02-16 Cree, Inc. Troffer-style light fixture with sensors
US10527225B2 (en) 2014-03-25 2020-01-07 Ideal Industries, Llc Frame and lens upgrade kits for lighting fixtures
US10012354B2 (en) 2015-06-26 2018-07-03 Cree, Inc. Adjustable retrofit LED troffer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006723A1 (en) * 2000-07-14 2002-01-24 Sirona Dental Systems Gmbh Dental treatment lamp
US6572234B1 (en) * 1999-11-23 2003-06-03 Heraeus Med Gmbh Lamp, especially a surgery lamp, with at least two bulbs
EP1741975A2 (en) * 2005-07-05 2007-01-10 Ingolf Diez, Simeon Medizintechnik Operating lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572234B1 (en) * 1999-11-23 2003-06-03 Heraeus Med Gmbh Lamp, especially a surgery lamp, with at least two bulbs
WO2002006723A1 (en) * 2000-07-14 2002-01-24 Sirona Dental Systems Gmbh Dental treatment lamp
EP1741975A2 (en) * 2005-07-05 2007-01-10 Ingolf Diez, Simeon Medizintechnik Operating lamp

Also Published As

Publication number Publication date
DE602007001479D1 (en) 2009-08-20
ES2330054T3 (en) 2009-12-03
ATE435997T1 (en) 2009-07-15
HK1105223A1 (en) 2008-02-06
EP1847762B1 (en) 2009-07-08
EP1847762A2 (en) 2007-10-24
PL1847762T3 (en) 2010-01-29

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