Polarimetry
US-2024044712-A1 · Feb 8, 2024 · US
Polarization information acquisition unit, image pickup apparatus including the same, polarization information acquisition method, and non-transitory computer-readable storage medium
US9506806B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9506806-B2 |
| Application number | US-201514643926-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2015 |
| Priority date | Mar 10, 2014 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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An polarization information acquisition unit includes a phase adjuster configured to adjust phases of two linearly polarized components of incident light, which oscillate in directions orthogonal to each other, a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component oscillating in a direction orthogonal to the one direction, the polarized components being included in light emitted from the phase adjuster, and a photoelectric convertor configured to photoelectrically convert a polarized component transmitted through the detector. The phase adjuster has at least three areas. The at least three areas include at least two areas having phase adjusting amounts different from each other, and at least two areas having an identical phase adjusting amounts and having slow axes whose directions are different from each other by 20 to 90 degrees inclusive.
First claim
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What is claimed is: 1. An polarization information acquisition unit configured to acquire polarization information of incident light, the polarization information acquisition unit comprising: a phase adjuster configured to adjust phases of two linearly polarized components of the incident light, which oscillate in directions orthogonal to each other; a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component osc…
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- G01J4/04Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9506806B2 cover?
- An polarization information acquisition unit includes a phase adjuster configured to adjust phases of two linearly polarized components of incident light, which oscillate in directions orthogonal to each other, a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component oscillating in a direction orthogonal to the one direction,…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G01J4/04. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 29 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).