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1. US20190306946 - White light source system

Office United States of America
Application Number 16444243
Application Date 18.06.2019
Publication Number 20190306946
Publication Date 03.10.2019
Grant Number 10674577
Grant Date 02.06.2020
Publication Kind B2
IPC
H01J 7/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
7Details not provided for in groups H01J1/-H01J5/87
24Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
H01J 19/74
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
19Details of vacuum tubes of the types covered by group H01J21/82
74Cooling arrangements
H05B 45/10
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
10Controlling the intensity of the light
H05B 45/20
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
20Controlling the colour of the light
H05B 47/10
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
47Circuit arrangements for operating light sources in general, i.e. where the type of the light source is not relevant
10Controlling the light source
H05B 47/16
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
47Circuit arrangements for operating light sources in general, i.e. where the type of the light source is not relevant
10Controlling the light source
16by timing means
CPC
F21S 2/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
H05B 45/10
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
10Controlling the intensity of the light
H01L 25/0753
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
25Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; ; Multistep manufacturing processes thereof
03all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes
04the devices not having separate containers
075the devices being of a type provided for in group H01L33/00
0753the devices being arranged next to each other
H01L 33/00
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
H01L 33/50
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 33/504
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
Applicants KABUSHIKI KAISHA TOSHIBA
TOSHIBA MATERIALS CO., LTD.
Inventors Masahiko Yamakawa
Noriaki Yagi
Kumpei Kobayashi
Agents Burr & Brown, PLLC
Priority Data 2015-126776 24.06.2015 JP
2016-082968 18.04.2016 JP
Title
(EN) White light source system
Abstract
(EN)

According to one embodiment, there is provided a white light source system. P(λ), B(λ) and V(λ) satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm:
380780P(λ)V(λ)dλ=∫380780B(λ)V(λ)  (1)
P(λ)/B(λ)≤1.8.  (2)

    • where P(λ) is a light emission spectrum of white light, B(λ) is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V(λ) is a spectrum of a spectral luminous efficiency.