Lamp

Patent metadata

Field	Value
Publication number	US-10132459-B2
Application number	US-201715398040-A
Country	US
Kind code	B2
Filing date	Jan 4, 2017
Priority date	Jul 10, 2014
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

A lamp includes a plurality of semiconductor light-emitting elements arrayed linearly, an aluminum substrate on which the plurality of light-emitting elements are mounted, and a linear light wavelength conversion member disposed separated from light-emitting surfaces of the plurality of light-emitting elements. The aluminum substrate includes a circuit formed such as to be able to switch on/off the plurality of light-emitting elements, as grouped into a plurality of sets, on a per-set basis in which the sets are composed of either one or a plurality of the light-emitting elements.

First claim

What is claimed is:

1. A lamp comprising:
a plurality of light-emitting elements arrayed linearly; a substrate on which the plurality of light-emitting elements are mounted; and
a linear light wavelength conversion member disposed separated from of the plurality of light-emitting elements' light-emitting surfaces; wherein
the substrate includes a circuit formed such as to be able to switch on/off the plurality of light-emitting elements, as grouped into a plurality of sets, on a per-set basis in which the sets are composed of either one or a plurality of the light-emitting elements, and
the light wavelength conversion member includes:
a retaining member provided on a conversion-member side opposing the plurality of light-emitting elements; and
a phosphor-containing resin layer retained by the retaining member.

2. The lamp according to claim 1 , wherein the light wavelength conversion member includes:
a groove provided to the retaining member; and
a phosphor-containing resin layer filling the groove in the retaining member.

3. The lamp according to claim 1 , further comprising:
either a light-shielder or a light wavelength convertor for making it so that among component light emitted by the light-emitting elements, component light not directed to the phosphor-containing resin layer does not as-is penetrate exteriorly.

4. The lamp according to claim 1 , adapted for a motor vehicle, wherein:
the substrate includes a first substrate section and a second substrate section carrying respective pluralities of the light-emitting elements;
the first substrate section is disposed such that the light-emitting surfaces of the carried plurality of light-emitting elements are oriented either vehicle-frontward or a vehicle-rearward; and
the second substrate section is disposed such as to be oriented vehicle-sideward of the light-emitting surfaces of the plurality of light-emitting elements carried on the first substrate section.

5. The lamp according to claim 4 , wherein the plurality of light-emitting elements carried on the first substrate section are of mounting density higher than mounting density of the light-emitting elements carried on the second substrate section.

6. The lamp according to claim 4 , wherein the light-emitting elements carried on the first substrate section are disposed vertically in a plurality of arrays extending vehicle-widthwise.

7. The lamp according to claim 1 , wherein:
the substrate includes a plurality of carrying sections extending vehicle-widthwise in a terraced form;
the plurality of carrying sections are formed such as to be oriented either vehicle-frontward or vehicle-rearward; and
the light-emitting elements are carried respectively on the carrying sections.

8. The lamp according to claim 1 , wherein the
light-emitting elements have a peak wavelength in a range of 380-470 nm.

9. The lamp according to claim 1 , wherein the light wavelength conversion member contains a phosphor having a dominant wavelength in a range of 585-610 nm.

Assignees

• Koito Mfg Co Ltd

Inventors

• Daicho Hisayoshi
• Yagi Toshio
• Sugimori Shogo
• Shinomiya Yu

Classifications

• F21S43/16

  Light sources where the light is generated by photoluminescent material spaced from a primary light generating element · CPC title

• B60Q1/2607

  comprising at least two indicating lamps · CPC title

• F21S43/15

  Strips of light sources · CPC title

• F21S43/195

  Details of lamp holders, terminals or connectors · CPC title

• F21S43/145

  Surface emitters, e.g. organic light emitting diodes [OLED] · CPC title