Patent ID: 7113342
Filing Date: 2006-09-26
Classification: G02B

Abstract:
1. A composite structure for light diffusion, wherein said composite structure for light path modification includes: microlens systems, said microlens systems includes a plurality of microlenses, each of said microlenses is formed with a first layer with a first refractive index and a second layer with a second refractive index, wherein said first refractive index is smaller than said second refractive index; and at least one carrier media layer suitable for carrying the microlens systems, wherein said second layer covers said first layer; wherein said plurality of optical microlens systems having predetermined physical and optical characteristics including light diffusion characteristics, wherein said optical microlens systems are attached to said carrier media layers, wherein said plurality of optical microlens system control paths of light incident on said optical microlens system in accordance with said optical and physical characteristics such that fields of light are provided, and wherein said microlens systems and carrier media layers thereby form a light path modification media with light guiding properties.