Abstract: Optical diffusers are disclosed with improved optical properties and improve aesthetic designs. A micro lens array may be overwritten with randomly placed lenses. A light shaping diffuser may be included. The light shaping diffuser may have a microstructure that includes features that aid in camouflaging the micro lenses from consumers, improving the aesthetic appearance while retaining other desirable optical properties.

Abstract: An anti-glare film for a light source is disclosed. The light source may be a light source with a Lambertian distribution, such as an LED light source. The anti-glare film may include a micro-frustum array to reduce the angular distribution of the light source and thus reduce glare. In some implementations, anti-glare film may further include a light shaping diffuser.

Abstract: An anti-glare film for a light source is disclosed. The light source may be a light source with a Lambertian distribution, such as an LED light source. The anti-glare film may include a micro-frustum array to reduce the angular distribution of the light source and thus reduce glare. In some implementations, anti-glare film may further include a light shaping diffuser.

Abstract: A vertical cavity apparatus includes a die with a top surface and a plurality of planar electrically conducting layers. At least one of the layers is an oxide layer formed of an oxidizable material that is oxidized upon exposure to an oxidizing agent to convert the oxidizable material to an electrical insulator. A plurality of oxide apertures are formed by via holes connecting the top surface to the oxide layer. A majority of the individual oxide apertures have different sizes. An optoelectronic device is coupled to a single oxide aperture in the die.