Lighting device with a light conductor for a motor vehicle exterior lighting system
US-2016312973-A1 · Oct 27, 2016 · US
Vehicle lamp
US2019242546A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019242546-A1 |
| Application number | US-201916386677-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 17, 2019 |
| Priority date | Oct 17, 2016 |
| Publication date | Aug 8, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A vehicle lamp includes: a first light source; and a light guide including a rod-shaped part and a plate-shaped part. The light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part. The plate-shaped part includes a light diffusion member inside. Light of the first light source is incident on the rod-shaped part from one end of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and is output by the light diffusion member from a principal surface of the plate-shaped part.
First claim
Opening claim text (preview).
What is claimed is: 1 . A vehicle lamp comprising: a first light source; and a light guide including a rod-shaped part and a plate-shaped part, wherein the light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part, the plate-shaped part includes a light diffusion member inside, and light of the first light source is incident on the rod-shaped part from one end of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and is output by the light diffusion member from a principal surface of the plate-shaped part. 2 . The vehicle lamp according to claim 1 , wherein the rod-shaped part and the plate-shaped part are an integrally molded product. 3 . The vehicle lamp according to claim 2 , wherein light that leaks from the circumferential surface in the process of traveling in the rod-shaped part from one end to the other end of the rod-shaped part, as the light is reflected by an inner surface, enters the plate-shaped part. 4 . The vehicle lamp according to claim 1 , wherein the vehicle lamp further comprises a second light source, the light guide includes a side branch that causes light of the second light source to be incident on the rod-shaped part from the circumferential surface of the rod-shaped part, the light of the second light source is incident on the side branch from an end of the side branch, enters the rod-shaped part from the side branch via the circumferential surface of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and is output by the light diffusion member from the principal surface of the plate-shaped part. 5 . The vehicle lamp according to claim 1 , wherein in a cross-sectional view orthogonal to a direction of extension of the rod-shaped part, a ratio between a diameter of the rod-shaped part and a thickness of the plate-shaped part differs between a predetermined first portion and a second portion more distanced from the first light source than the first portion.
Assignees
Inventors
Classifications
with two or more light sources being coupled into the light guide · CPC title
- F21S43/241Primary
of complex shape · CPC title
Light emitting diodes [LED] · CPC title
comprising at least two indicating lamps · CPC title
rod-shaped · CPC title
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Frequently asked questions
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- What does patent US2019242546A1 cover?
- A vehicle lamp includes: a first light source; and a light guide including a rod-shaped part and a plate-shaped part. The light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part. The plate-shaped part includes a light diffusion member inside. Light of the first light source is incident on the rod-shaped part f…
- Who is the assignee on this patent?
- Koito Mfg Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F21S43/241. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Aug 08 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).