Information processing system, method, and non-transitory computer-readable medium
US-2015229830-A1 · Aug 13, 2015 · US
Focus adjustment apparatus, camera system, and focus adjustment method
US9420165B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9420165-B2 |
| Application number | US-201514961335-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 7, 2015 |
| Priority date | Jun 27, 2013 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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Abstract
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A focus adjustment apparatus comprising a focus detection unit to detect image phase difference information using a light flux having passed through a photographic optical system including a focus lens, and a focus adjustment unit converts first image phase difference information detected by the focus detection unit into a defocus amount using a conversion coefficient and causes the focus detection unit to detect second image phase difference information after having moved the focus lens according to the defocus amount, and corrects the conversion coefficient according to the second image phase difference information and causes a storage unit to store the corrected conversion coefficient.
First claim
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What is claimed is: 1. A focus adjustment apparatus, comprising: a focus detection unit to detect image phase difference information using a light flux having passed through a photographic optical system including a focus lens; a storage unit to store a conversion coefficient for converting the image phase difference information into a defocus amount; and a focus adjustment unit to convert the image phase difference information into the defocus amount using the conversion coef…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G02B7/28Primary
Physics · mapped topic
Electricity · mapped topic
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- What does patent US9420165B2 cover?
- A focus adjustment apparatus comprising a focus detection unit to detect image phase difference information using a light flux having passed through a photographic optical system including a focus lens, and a focus adjustment unit converts first image phase difference information detected by the focus detection unit into a defocus amount using a conversion coefficient and causes the focus detec…
- Who is the assignee on this patent?
- Olympus Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B7/28. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 16 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).