公开(公告)号：US10086749B2

公开(公告)日：2018-10-02

申请号：US15878866

申请日：2018-01-24

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tohru Himeno ,  Naoko Takei

IPC: B60Q1/02 ,  B60Q1/14 ,  F21S41/176

Abstract: Provided is a vehicle front lamp for use in a vehicle, including: a first white light source that emits first white light; a second white light source that emits second white light having a feeling of contrast index different from that of the first white light by at least 10; and a controller that controls light intensity of the first white light and light intensity of the second white light, in which chromaticity of the first white light and chromaticity of the second white light are each within a 5-step MacAdam ellipse, the first white light source and the second white light source are disposed in the vehicle front lamp so that the first white light and the second white light overlap each other on a certain illuminated surface, and the controller temporally changes a light intensity ratio between the first white light and the second white light.

公开(公告)号：US10400970B2

公开(公告)日：2019-09-03

申请号：US15711632

申请日：2017-09-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroko Koiwa ,  Naoko Takei ,  Yoko Matsubayashi

IPC: F21V21/10 ,  F21S41/141 ,  B60Q1/06 ,  F21V15/01 ,  F21S41/125 ,  F21S41/143 ,  F21S41/25 ,  F21S41/663 ,  F21S41/147 ,  F21W102/18

Abstract: A vehicle front lamp that emits light forward includes a first light emitter that emits first emission light having a correlated color temperature of at least 3000 K and at most 7000 K, and a second light emitter that emits second emission light having a correlated color temperature of at least 3000 K and at most 7000 K. The chroma value of the first emission light is lower than the chroma value of the second emission light. The chroma value of each of the first emission light and the second emission light is derived by using the calculation method stipulated in The CIE 1997 Interim Color Appearance Model (Simple Version). The second emission light is emitted far ahead and the first emission light is emitted onto a road surface ahead, when the vehicle front lamp is mounted on a vehicle.

公开(公告)号：US09644802B2

公开(公告)日：2017-05-09

申请号：US14434968

申请日：2013-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoko Takei ,  Kohji Hiramatsu ,  Tomoya Iwahashi

IPC: F21K9/64 ,  F21K99/00 ,  H01L25/075 ,  H05B33/08 ,  F21V23/00 ,  H01L33/50 ,  F21Y115/10 ,  F21Y113/13

CPC classification number: F21K9/278 ,  F21K9/238 ,  F21K9/64 ,  F21V23/003 ,  F21V23/006 ,  F21V23/009 ,  F21Y2113/13 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/504 ,  H01L2924/0002 ,  H05B33/0803 ,  H05B33/0851 ,  H01L2924/00

Abstract: Lighting equipment is provided that enables illumination light having a stable FCI to be obtained, without influence from the lighting conditions. To this end, lighting equipment 1 performs control of lighting a first light-emitting element 12a while substantially not lighting a second light-emitting element 12b when a red light-emitting element 12c is lit under first lighting conditions where a peak wavelength of light from the red light-emitting element 12c has a first value, and of lighting the second light-emitting element 12b while substantially not lighting the first light-emitting element 12a when the red light-emitting element 12c is lit under second lighting conditions where the peak wavelength of the light from the red light-emitting element 12c has a second value, the second value being greater than the first value.

公开(公告)号：US10096749B2

公开(公告)日：2018-10-09

申请号：US15184244

申请日：2016-06-16

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Naoko Takei

IPC: H01L33/50 ,  F21S41/141 ,  F21V15/01 ,  F21V29/77 ,  H01L25/075 ,  F21S8/02 ,  F21S8/08 ,  F21W131/10 ,  F21W131/103 ,  F21V29/89 ,  F21Y115/10

Abstract: An illumination light source emits white light resulting from mixing of light emitted from an LED chip and light emitted from a plurality of phosphors. A light emission spectrum of the white light has a peak in a wavelength range from 430 nm to 460 nm. In the light emission spectrum, a proportion of optical intensity at a wavelength of 510 nm relative to optical intensity at the peak is 0.45 or more, and a proportion of optical intensity at a wavelength of 580 nm relative to the optical intensity at the peak is 0.60 or more. Furthermore, in the light emission spectrum, a proportion of optical intensity at a wavelength of 650 nm relative to the optical intensity at the wavelength of 580 nm is 0.4 or less.

公开(公告)号：US09215776B2

公开(公告)日：2015-12-15

申请号：US14434962

申请日：2013-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoya Iwahashi ,  Kohji Hiramatsu ,  Naoko Takei

IPC: H05B33/08 ,  F21K99/00 ,  F21V9/16 ,  F21S8/02 ,  F21Y101/02 ,  F21Y103/00 ,  F21Y105/00 ,  F21Y113/00

CPC classification number: H05B33/0857 ,  F21K9/20 ,  F21K9/232 ,  F21K9/27 ,  F21K9/64 ,  F21S8/026 ,  F21V9/30 ,  F21Y2103/10 ,  F21Y2105/10 ,  F21Y2105/12 ,  F21Y2113/13 ,  F21Y2115/10 ,  F21Y2115/30 ,  H05B33/086

Abstract: Lighting equipment 1 is provided that enables illumination light having a stable FCI to be obtained, without influence from the lighting conditions. To this end, a lighting circuit 4 performs control of lighting a first red light source R1 and lighting a white light source W while not lighting or faintly lighting a second red light source R2 under first lighting conditions in which the first red light source R1 is expected to produce red light with a first peak wavelength, and of lighting the second red light source R2 and lighting the white light source W while not lighting or faintly lighting the first red light source R1 under second lighting conditions in which the first red light source R1 is expected to produce the red light with a second peak wavelength that is shifted toward a longer wavelength relative to the first peak wavelength.

Abstract translation: 提供照明设备1，其能够获得具有稳定FCI的照明光，而不受照明条件的影响。 为此，点亮电路4执行第一红色光源R1的点亮和点亮白色光源W的控制，同时在第一红色光源R1为第一红色光源R1为 预期产生具有第一峰值波长的红光，并且在第二光照条件下的第二光照条件下，在不照亮或微弱点亮第一红光源R1的同时点亮第二红光源R2并点亮白光源W， 期望R1产生具有相对于第一峰值波长向较长波长移动的第二峰值波长的红光。

公开(公告)号：US20150276150A1

公开(公告)日：2015-10-01

申请号：US14434968

申请日：2013-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoko Takei ,  Kohji Hiramatsu ,  Tomoya Iwahashi

IPC: F21K99/00 ,  F21V23/00

CPC classification number: F21K9/278 ,  F21K9/238 ,  F21K9/64 ,  F21V23/003 ,  F21V23/006 ,  F21V23/009 ,  F21Y2113/13 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/504 ,  H01L2924/0002 ,  H05B33/0803 ,  H05B33/0851 ,  H01L2924/00

Abstract: Lighting equipment is provided that enables illumination light having a stable FCI to be obtained, without influence from the lighting conditions. To this end, lighting equipment 1 performs control of lighting a first light-emitting element 12a while substantially not lighting a second light-emitting element 12b when a red light-emitting element 12c is lit under first lighting conditions where a peak wavelength of light from the red light-emitting element 12c has a first value, and of lighting the second light-emitting element 12b while substantially not lighting the first light-emitting element 12a when the red light-emitting element 12c is lit under second lighting conditions where the peak wavelength of the light from the red light-emitting element 12c has a second value, the second value being greater than the first value.

Abstract translation: 提供照明设备，其能够获得具有稳定FCI的照明光，而不受照明条件的影响。 为此，当红色发光元件12c在第一光照条件下点亮时，照明设备1执行点亮第一发光元件12a的控制，同时基本上不点亮第二发光元件12b，其中来自 当红色发光元件12c在第二光照条件下点亮时，红色发光元件12c具有第一值，并且在基本上不点亮第一发光元件12a的同时点亮第二发光元件12b， 来自红色发光元件12c的光的波长具有第二值，第二值大于第一值。