Multi-faceted diffuser providing specific light distributions from a light source
US11835741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Dec 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical or light diffusers (or, simply, “diffusers”) designed and manufactured to include numerous facets randomly arranged in cells or sets on the diffuser outer (or front) surface in which the planar faces or outward-facing surfaces have orientations and transmission angles (as may be defined by direction cosines of normal) to redirect received light to a region or portion of a predefined light distribution. Methods of designing or defining the facets of the diffuser is also provided. The diffusers are optically designed to produce a user-specified distribution of light. The diffusers can be engineered through the configuration of the facets on its light transmission surface to produce nearly any type of light distribution or shape, and the diffuser design facilitates their manufacture using extrusion processes as well as other fabrication techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.