Plastic optical element and method of manufacturing the same

US8947795B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8947795-B2
Application numberUS-201313898316-A
CountryUS
Kind codeB2
Filing dateMay 20, 2013
Priority dateMay 23, 2012
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A plastic optical element includes a member and covering portions formed on a first surface and a second surface of the member. A projecting portion made of a material out of which the member is made and a material out of which the covering portions are made is formed on a part of a side surface of the member, and the covering portion of the first surface and the covering portion of the second surface are connected to each other through the projecting portion.

First claim

Opening claim text (preview).

What is claimed is: 1. A plastic optical element comprising: a member including a first surface, a second surface opposite the first surface, and a side surface connecting the first surface and the second surface; a first covering portion covering the first surface; a second covering portion made of a material which is the same as a material out of which the first covering portion is made, the second covering portion covering the second surface; a protruding portion protrudi…

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What does patent US8947795B2 cover?
A plastic optical element includes a member and covering portions formed on a first surface and a second surface of the member. A projecting portion made of a material out of which the member is made and a material out of which the covering portions are made is formed on a part of a side surface of the member, and the covering portion of the first surface and the covering portion of the second …
Who is the assignee on this patent?
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 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).