Patent ID: 8089083

Claim:
A light device comprising: a light source; encapsulation material encapsulating said light source such that the surrounding of the light source is filled up by the encapsulation material; an index of refraction matching layer positioned with respect to said encapsulation material so as to increase light extraction from said encapsulation material; wherein, said index of refraction matching layer is a separate layer of material having a different index of refraction from that of said encapsulation material and wherein, the separate layer is a film layer; wherein, said index of refraction matching layer is at least partially located between said encapsulation material and a media; wherein, said encapsulation material has a first index of refraction; wherein, said index of refraction matching layer has a second index of refraction; wherein, said media has a third index of refraction; wherein, said first index of refraction is different from said third index of refraction and said second index of refraction is between said first index of refraction and said third index of refraction; and wherein said film layer is an opaline film.