Mobile device and optical imaging lens thereof
US-8976467-B2 · Mar 10, 2015 · US
Imaging lens having four lens elements, and electronic apparatus having the same
US9217845B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9217845-B2 |
| Application number | US-201313738313-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2013 |
| Priority date | Aug 27, 2012 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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.
An imaging lens includes first, second, third, and fourth lens elements arranged from an object side to an image side in the given order. The first lens element has a positive refractive power, and a convex object-side surface. The second lens element has a negative refractive power, and an image-side surface with a convex portion. The third lens element has an object-side surface with a concave portion. The fourth lens element has an object-side surface with a convex portion, and an image-side surface with a convex portion and a concave portion.
First claim
Opening claim text (preview).
What is claimed is: 1. An imaging lens comprising an aperture stop, a first lens element, a second lens element, a third lens element and a fourth lens elements arranged from an object side to an image side in the given order, each of said first, second, third, and fourth lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein: said first lens element has a positive refractive power, said object-side…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
- G02B13/004Primary
Physics · mapped topic
Physics · 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 US9217845B2 cover?
- An imaging lens includes first, second, third, and fourth lens elements arranged from an object side to an image side in the given order. The first lens element has a positive refractive power, and a convex object-side surface. The second lens element has a negative refractive power, and an image-side surface with a convex portion. The third lens element has an object-side surface with a concav…
- Who is the assignee on this patent?
- Chang Kuo-Wen, Lee Poche, Lo Wei-Yu, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G02B13/004. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 22 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).