Optical film with array of microstructures and the light source apparatus utilizing the same

摘要

The present invention discloses an optical film with array of microstructures, having a first optical surface and a second optical surface for receiving an incident light. The optical film comprises at least a transparent microstructure formed on the first optical surface, wherein the microstructure further comprises: a first side for scattering the incident light; and a second side for collimating the incident light.