IP Library › Granted Patent US 10,132,459
Granted Patent B2
US 10,132,459 · App. 15/398,040 · Granted Nov 20, 2018

Lamp

Inventors: Hisayoshi Daicho (Shizuoka, JP); Toshio Yagi (Shizuoka, JP); Shogo Sugimori (Shizuoka, JP); Yu Shinomiya (Shizuoka, JP)
Assignee: KOITO MANUFACTURING CO., LTD.
F21S43/00B60Q1/2607B60Q1/2696B60Q1/38B60Q1/382F21K9/64F21S43/13F21S43/14F21S43/145F21S43/15F21S43/195F21Y2103/10
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Quick Facts
Patent No.
US 10,132,459
App. No.
15/398,040
Granted
Nov 20, 2018
Kind
B2
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.

Claims (25)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2017
From: DAICHO, HISAYOSHI; YAGI, TOSHIO; SUGIMORI, SHOGO; SHINOMIYA, YU
To: KOITO MANUFACTURING CO., LTD.
Reel/Frame 040840/0244 →
Priority Claims (1)
JP 2014-142558 · Jul 10, 2014 · national
Continuity (2)
Continuation PCTJP2015069952 · Jul 10, 2015
Related Publication 20170113605A1 · Apr 27, 2017
Cited By (1)
US 12,674,555