Optical system and camera module comprising same
US-2024377616-A1 · Nov 14, 2024 · US
Optical system and optical apparatus having the same
US8970966B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970966-B2 |
| Application number | US-201213720001-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2012 |
| Priority date | Dec 28, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 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 optical system includes, in order from an object side to an image side, a first lens unit of a positive refractive power, an aperture diaphragm, and a second lens unit of a positive refractive power. The first lens unit includes, in order from the object side to the image side, a cemented lens Lp 1 made by joining a first lens of a positive refractive power and a second lens of a negative refractive power with each other, and a third lens of a positive refractive power which has a meniscus shape. The predetermined conditions are satisfied.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical system comprising, in order from an object side to an image side, a first lens unit of a positive refractive power, an aperture diaphragm, and a second lens unit of a positive refractive power, wherein the first lens unit includes, in order from the object side to the image side, a cemented lens Lp 1 made by joining a first lens of a positive refractive power and a second lens of a negative refractive power with each other, and a third lens of a…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
- G02B15/14Primary
Physics · mapped topic
Electricity · mapped topic
- G02B15/1421Primary
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 US8970966B2 cover?
- An optical system includes, in order from an object side to an image side, a first lens unit of a positive refractive power, an aperture diaphragm, and a second lens unit of a positive refractive power. The first lens unit includes, in order from the object side to the image side, a cemented lens Lp 1 made by joining a first lens of a positive refractive power and a second lens of a negative r…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G02B15/14. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 03 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).