Imaging apparatus, photographic lens unit, and imaging unit
US-2015077589-A1 · Mar 19, 2015 · US
Engineered point spread function for simultaneous extended depth of field and 3D ranging
US9325971B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9325971-B2 |
| Application number | US-201313829541-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2013 |
| Priority date | Jan 10, 2013 |
| Publication date | Apr 26, 2016 |
| Grant date | Apr 26, 2016 |
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.
Optical systems utilize waveplates to simultaneously encode information for increasing image depth of field and for providing a depth map of the imaged object or sample. These waveplates are configured to result in a focus-invariant point spread function in one focal region, and to result in point spread functions that vary as a function of range within the imaged object in a different focal region. For example, a basic compound microscope might have a specially shaped waveplate inserted at the back aperture plane of the microscope objective to manipulate the phase of the wavefront. An image formed on one side of the plane of best focus is focus invariant, and is brought into focus by a restoring algorithm. An image formed on the other side of the plane of best focus captures point spread functions comprising rings that vary with depth within the imaged object.
First claim
Opening claim text (preview).
What is claimed is: 1. The method of imaging a three-dimensional (3D) object that simultaneously accomplishes extended depth of field and 3D ranging, the method comprising the steps of: (a) providing an optical system including a waveplate, the waveplate constructed and arranged to modify the optical path of light from a 3D object such that optical system simultaneously produces an extended depth of field (EDF) image of the object and produces a depth-encoded image of the object h…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- H04N13/025Primary
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9325971B2 cover?
- Optical systems utilize waveplates to simultaneously encode information for increasing image depth of field and for providing a depth map of the imaged object or sample. These waveplates are configured to result in a focus-invariant point spread function in one focal region, and to result in point spread functions that vary as a function of range within the imaged object in a different focal re…
- Who is the assignee on this patent?
- Univ Colorado Regents
- What technology area does this patent fall under?
- Primary CPC classification H04N13/025. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 26 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).