Image acquiring device
US-11888292-B2 · Jan 30, 2024 · US
Multi-wavelength VCSEL array to reduce speckle
US9065254B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9065254-B2 |
| Application number | US-201414294007-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2014 |
| Priority date | Jan 31, 2012 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Embodiments of the invention describe an illuminator having a light source to originate an illumination beam, wherein the light source further comprises a set of vertical-cavity surface emitting lasers (VCSELs), including a first VCSEL having a first laser emission wavelength, and a second VCSEL having a second laser emission wavelength different than the first laser emission wavelength. Thus, by varying laser emission wavelengths of VCSELs in a VCSEL array, embodiments of the invention produce low-contrast speckle, and do not limit the imaging capabilities of the host illumination system. In some embodiments of the invention, vertical external cavity surface emitting lasers (VECSELs) are utilized to produce the above described varying laser emission wavelengths.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: forming an illuminator comprising a light source configured to originate an illumination beam, wherein the light source comprises an array of vertical-cavity surface emitting lasers (VCSELs) sharing at least one common electrode and configured to produce different emission wavelengths to form the illumination beam, including a first VCSEL having a first laser emission wavelength, and a second VCSEL having a second laser emission wa…
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Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
- H01S5/4087Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9065254B2 cover?
- Embodiments of the invention describe an illuminator having a light source to originate an illumination beam, wherein the light source further comprises a set of vertical-cavity surface emitting lasers (VCSELs), including a first VCSEL having a first laser emission wavelength, and a second VCSEL having a second laser emission wavelength different than the first laser emission wavelength. Thus, …
- Who is the assignee on this patent?
- Flir Systems
- What technology area does this patent fall under?
- Primary CPC classification H01S5/4087. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 23 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).