Electronic device and method for controlling the electronic device thereof
US-2024160029-A1 · May 16, 2024 · US
Light directing film
US8947799B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8947799-B2 |
| Application number | US-201113581908-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2011 |
| Priority date | Apr 12, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side facet makes an angle with the plane of the light directing film in a range from about 35 degrees to about 55 degrees. Each light directing portion also includes a first base that is defined by the plurality of first side facets and has a first minimum dimension. Each light directing portion also has a first maximum height. Each unitary discrete structure also includes a bonding portion that is primarily for bonding the light directing film to a surface. The bonding portion is disposed on and between the plurality of first side facets and includes a plurality of second side facets. Each second side facet makes an angle with the plane of the light directing film greater than about 70 degrees. The bonding portion also includes a second base that is defined by the plurality of second side facets and has a second minimum dimension less than about 10% of the first minimum dimension. The bonding portion also has a second maximum height. The ratio of the second maximum height to the second minimum dimension is at least about 1.5.
First claim
Opening claim text (preview).
What is claimed is: 1. A light directing film comprising a first structured major surface and an opposing second major surface, the first structured major surface comprising a plurality of unitary discrete structures, each unitary discrete structure comprising: a light directing portion primarily for directing light and comprising: a plurality of first side facets, each first side facet making an angle with a plane of the light directing film in a range from about 35 degrees to a…
Assignees
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Classifications
Mechanical Engineering · mapped topic
- G02B5/04Primary
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8947799B2 cover?
- Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side f…
- Who is the assignee on this patent?
- Edmonds William F, Jones Vivian W, Kotchick Keith M, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification G02B5/04. 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).