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1. WO2020221653 - LED FILAMENT LAMP

Publication Number WO/2020/221653
Publication Date 05.11.2020
International Application No. PCT/EP2020/061363
International Filing Date 23.04.2020
IPC
F21K 9/232 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-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
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes or lasers
20Light sources comprising attachment means
23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
232specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
H01L 33/50 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
50Wavelength conversion elements
H01L 33/52 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
52Encapsulations
CPC
F21K 9/232
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-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
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
20Light sources comprising attachment means
23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
232specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
F21Y 2107/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING 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
2107Light sources with three-dimensionally disposed light-generating elements
H01L 2933/0091
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2933Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
0091Scattering means in or on the semiconductor body or semiconductor body package
H01L 33/504
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
50Wavelength conversion elements
501characterised by the materials, e.g. binder
502Wavelength conversion materials
504Elements with two or more wavelength conversion materials
H01L 33/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
52Encapsulations
Applicants
  • SIGNIFY HOLDING B.V. [NL]/[NL]
Inventors
  • VAN BOMMEL, Ties
  • HIKMET, Rifat, Ata, Mustafa
  • PET, Robert, Jacob
Agents
  • VAN EEUWIJK, Alexander, Henricus, Walterus
  • VERWEIJ, Petronella, Danielle
Priority Data
19172174.502.05.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LED FILAMENT LAMP
(FR) LAMPE À FILAMENT À DEL
Abstract
(EN)
There is provided a light emitting diode, LED, filament lamp (100) which has a longitudinal axis (LA) and provides LED filament lamp light (101). The LED filament lamp (100) comprises a LED filament (102) which comprises a light transmissive, elongated substrate (103). Said substrate (103) has a first main surface (105) at a first side (105') and a second main surface (106) at a second side (106') opposite to the first side (105'). A plurality of LEDs (104) is mounted only onto said first main surface (105) and configured to emit LED light (107). An encapsulant (108, 114) covers the plurality of LEDs (104) and at least part of said first main surface (105). The LED filament (102) by a specific distribution of beam modifying material (115', 115", 109', 109") comprises at least a luminescent material (109', 109") provided in the encapsulant, and is configured to emit first LED filament light (112) in a first main direction (D1) away from the first main surface (105) and having a first color point xl,yl, and to emit second LED filament light (113) in a second main direction (D2) away from the second main surface (106) having a second color point x2,y2. The first main direction (D1) is opposite to the second main direction (D2), and, wherein (i) |xl-x2| > 0.05 and/or (ii) |yl-y2| > 0.05 applies.
(FR)
L'invention concerne une diode électroluminescente, une DEL, une lampe à filament (100) qui a un axe longitudinal (LA) et fournit une lumière de lampe à filament à DEL (101). La lampe à filament à DEL (100) comprend un filament à DEL (102) qui comprend un substrat allongé transmettant la lumière (103). Ledit substrat (103) a une première surface principale (105) sur un premier côté (105') et une seconde surface principale (106) sur un second côté (106') opposé au premier côté (105'). Une pluralité de DEL (104) est montée uniquement sur ladite première surface principale (105) et configurée pour émettre une lumière à DEL (107). Un agent d'encapsulation (108, 114) recouvre la pluralité de DEL (104) et au moins une partie de ladite première surface principale (105). Le filament à DEL (102) par une distribution spécifique de matériau de modification de faisceau (115', 115", 109', 109") comprend au moins un matériau luminescent (109', 109") disposé dans l'agent d'encapsulation, et est configuré pour émettre une première lumière à filament à DEL (112) dans une première direction principale (Dl) à l'opposé de la première surface principale (105) et ayant un premier point de couleur xl,yl, et pour émettre une seconde lumière à filament à DEL (113) dans une seconde direction principale (D2) à l'opposé de la seconde surface principale (106) ayant un second point de couleur x2,y2. La première direction principale (Dl) est opposée à la seconde direction principale (D2), et (i) |xl-x2| > 0,05 et/ou (ii) |yl-y2| > 0,05 s'applique.
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