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US 10,656,318 B2Granted
Optical body and light emitting device
AssigneeDexerials Corporation
InventorsNaoki Hanashima, Koji Sasaki
Life of this patent
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Abstract
There is provided an optical body including: a base material; and a light extraction unit that is formed on a surface of the base material and that extracts, to an outside of the base material, internally propagating light that is injected in an inside of the base material from a side surface of the base material. The light extraction unit is formed of a convex microlens array, and a maximum inclination angle of the convex microlens array substantially coincides with a maximum propagation angle of the internally propagating light.
Claims4
An optical body comprising:
- a base material;
- and
- a light extraction unit that is formed on an external surface of the base material and that extracts, to an opposite surface of the base material, internally propagating light that is injected in an inside of the base material from a side surface of the base material,
- wherein the light extraction unit is formed of a convex microlens array, wherein the convex microlens array is convex with respect to an exterior surface of the microlens array, and
- an arithmetic average value of maximum inclination angles of microlenses in the convex microlens array substantially coincides with a maximum propagation angle of the internally propagating light.
2 more elements
Dependencies are inferred from the claim text.