Optical element with different transmittances for a lighting assembly
US12078338B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 20, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 2, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical element or a lighting element assembly including an optical element, can include a first portion of transmittance defining high transmittance enabling greater that 80% of light transmission, and a second portion of transmittance defining a low transmittance enabling less than 40% of light transmission, wherein the second portion of transmittance encircles the first portion of transmittance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.