Optical system and camera module comprising same
US-2024377616-A1 · Nov 14, 2024 · US
Plastic optical element and method of making the same
US8964313B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964313-B2 |
| Application number | US-201113988500-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2011 |
| Priority date | Nov 24, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
To provide a plastic optical element with reduced birefringence. An angle formed by a line segment that connects a gate corresponding part of a core lens to the center of the core lens and a line segment that connects a gate corresponding part of a molded portion to the center of the core lens is greater than or equal to 90 degrees and is less than or equal to 180 degrees when viewed in a direction along the optical axis of the plastic optical element.
First claim
Opening claim text (preview).
The invention claimed is: 1. A plastic optical element comprising: a core lens; and a molded portion disposed on the surface of the core lens, the molded portion serving as a plastic coating, wherein the core lens has a rib portion, the rib portion having a gate corresponding part of the core lens, wherein the molded portion has a rib portion, the rib portion having a gate corresponding part of the molded portion, wherein an angle formed by a line segment that connects the…
Assignees
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Classifications
Physics · mapped topic
- G02B3/00Primary
Physics · mapped topic
- B29D11/0073Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8964313B2 cover?
- To provide a plastic optical element with reduced birefringence. An angle formed by a line segment that connects a gate corresponding part of a core lens to the center of the core lens and a line segment that connects a gate corresponding part of a molded portion to the center of the core lens is greater than or equal to 90 degrees and is less than or equal to 180 degrees when viewed in a…
- Who is the assignee on this patent?
- Kobayashi Daigo, Kikuchi Wataru, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G02B3/00. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 24 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).