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Advanced optics for IRST sensor having afocal foreoptics positioned between a scanning coelostat mirror and focal imaging optics
US9500518B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9500518-B2 |
| Application number | US-201514612524-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2015 |
| Priority date | Feb 3, 2015 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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Abstract
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An optical sensor system having an extended elevation field of view and in which the optics are configured around an all-reflective four-mirror reimaging anastigmat used for afocal foreoptics and an all-reflective five-mirror reimaging anastigmat used for imaging optics. One example of an optical sensor system includes afocal foreoptics configured to receive and collimate electromagnetic radiation, the afocal foreoptics including an all-reflective, reimaging four-mirror anastigmat, an imaging detector, focal imaging optics positioned between the afocal foreoptics and the imaging detector and configured to receive the collimated beam of electromagnetic radiation from the afocal foreoptics and to focus the beam of electromagnetic radiation onto the imaging detector, the focal imaging optics including a reimaging five-mirror anastigmat, wherein a field of view of the system is determined at least in part by a combination of the afocal foreoptics and the focal imaging optics and covers at least 5 degrees in elevation.
First claim
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What is claimed is: 1. An optical sensor system comprising: afocal foreoptics configured to receive and collimate electromagnetic radiation to provide a collimated beam of electromagnetic radiation, the afocal foreoptics including an all-reflective, reimaging four-mirror anastigmat; an imaging detector; focal imaging optics positioned between the afocal foreoptics and the imaging detector and configured to receive the collimated beam of electromagnetic radiation from the afoca…
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Physics · mapped topic
- G01J1/0411Primary
Physics · mapped topic
Physics · mapped topic
- G01S7/4817Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9500518B2 cover?
- An optical sensor system having an extended elevation field of view and in which the optics are configured around an all-reflective four-mirror reimaging anastigmat used for afocal foreoptics and an all-reflective five-mirror reimaging anastigmat used for imaging optics. One example of an optical sensor system includes afocal foreoptics configured to receive and collimate electromagnetic radiat…
- Who is the assignee on this patent?
- Raytheon Co
- What technology area does this patent fall under?
- Primary CPC classification G01J1/0411. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 22 2016 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).