Vehicle lamp
US-10317031-B2 · Jun 11, 2019 · US
Vehicular lamp
US2020200345A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020200345-A1 |
| Application number | US-201816612721-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 15, 2018 |
| Priority date | May 18, 2017 |
| Publication date | Jun 25, 2020 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A vehicular lamp includes a laser light source configured to radiate a laser beam, a wavelength conversion member configured to receive the laser beam and radiate white light, and a lens body disposed between the laser light source and the wavelength conversion member and configured to emit the white light, wherein the lens body has a laser beam incident surface configured to allow incidence of the laser beam, a white light incident surface configured to emit the laser beam from inside of the lens body and to allow incidence of the white light radiated from the wavelength conversion member, and an emission surface configured to emit the white light, and the wavelength conversion member is disposed to be separated from the white light incident surface.
First claim
Opening claim text (preview).
1 . A vehicular lamp comprising: a laser light source configured to radiate a laser beam; a wavelength conversion member configured to receive the laser beam and radiate white light; and a lens body disposed between the laser light source and the wavelength conversion member and configured to emit the white light, wherein the lens body has: a laser beam incident surface configured to allow incidence of the laser beam radiated from the laser light source; a white light incident surface configured to emit the laser beam from inside of the lens body and to allow incidence of the white light radiated from the wavelength conversion member; and an emission surface configured to emit the white light, and the wavelength conversion member is disposed to be separated from the white light incident surface. 2 . The vehicular lamp according to claim 1 , wherein the laser beam incident surface is curved in a convex lens shape. 3 . The vehicular lamp according to claim 1 , wherein the wavelength conversion member has a light receiving surface perpendicular to an optical axis of the laser beam emitted from the white light incident surface. 4 . The vehicular lamp according to claim 1 , wherein the laser light source allows incidence of a p-polarized laser beam with respect to the laser beam incident surface within a range of a Brewster's angle+5° from a normal direction. 5 . The vehicular lamp according to claim 1 , comprising a plurality of laser light sources, wherein each of the plurality of laser light sources causes a radiated laser beam to enter the same wavelength conversion member. 6 . The vehicular lamp according to claim 1 , comprising: an emission detector configured to detect a light emitting state of the wavelength conversion member; and a controller connected with the laser light source and the emission detector, wherein the controller is configured to stop radiation of the laser beam from the laser light source when the laser light source has radiated the laser beam and the emission detector has detected that the light emitting state of the wavelength conversion member is insufficient.
Assignees
Inventors
Classifications
Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights · CPC title
Passive cooling, e.g. using fins, thermal conductive elements or openings · CPC title
- F21S41/27Primary
Thick lenses · CPC title
Attachment of light sources or lamp holders (achieving variable light distribution by movable light sources F21S41/657) · CPC title
Light sources where the light is generated by photoluminescent material spaced from a primary light generating element · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2020200345A1 cover?
- A vehicular lamp includes a laser light source configured to radiate a laser beam, a wavelength conversion member configured to receive the laser beam and radiate white light, and a lens body disposed between the laser light source and the wavelength conversion member and configured to emit the white light, wherein the lens body has a laser beam incident surface configured to allow incidence of…
- Who is the assignee on this patent?
- Stanley Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F21S41/27. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jun 25 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).