Light guide articles and methods of making
Assignee3M Innovative Properties Company
InventorAndrew J. Ouderkirk
Life of this patent
Estimating the term…
Abstract
Foldable and folded light guide articles are described. Foldable light guide articles include a backing, a light guide disposed upon the backing and a prism disposed upon the backing adjacent to the light guide such that when the backing is folded about an axis between the prism and the light guide, a side of the prism is positioned adjacent to and aligned with an end of the light guide. Folded light guide articles include a light guide, a first prism and a second prism. The first prism is disposed adjacent to and aligned with an end of the light guide. The second prism is disposed adjacent to and aligned with the first prism with a low-index material separating the first prism and the second prism.
Claims20
An article comprising:
- a backing;
- a first light guide disposed upon the backing;
- a first prism disposed upon the backing adjacent the first light guide such that when the backing is folded about a first axis between the first prism and the first light guide, a first side of the first prism is positioned adjacent to and aligned with an end of the first light guide.
An article comprising
- a first light guide having a first end, a second end opposite the first end, a first major surface, and a second major surface opposite the first major surface;
- a first prism;
- and
- a second prism,
- wherein each of the first and second prisms have a first side, a second side, a third side, and a first edge between the first side and the second side, the third side longer than the first side and longer than the second side;
- and
- wherein the first prism is disposed with the first side of the first prism adjacent to and aligned with the first end of the first light guide, the second prism is disposed with the first side of the second prism adjacent to and aligned with the second side of the first prism with a first low-index material separating the second side of the first prism and the first side of the second prism, and the first edge of the first prism is disposed adjacent the first edge of the second prism.
An article comprising:
- a backing;
- a first light guide disposed upon the backing;
- a first prism disposed upon the backing adjacent to the first light guide, the first prism having first, second and third sides, the third side of the first prism longer than the first and second sides of the first prism, the third side of the first prism adjacent the backing,
- wherein a length of the first side of the first prism is approximately equal to a thickness of the first light guide.
Dependencies are inferred from the claim text.