Hybrid photoluminescent lighting display
US10366638B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hybrid photoluminescent display consumes little electrical power and provides for light emission/color in a desired color. The display includes a housing having openings forming a desired legend. White LEDs internal to the housing provide light for energizing photoluminescent material. A legend panel housed within the housing defines openings corresponding to the legend. Photoluminescent material is disposed within the openings of the legend panel. The photoluminescent material is selected to be energizable by light from the white light source, and to emit light primarily in a selected wavelength range corresponding to a desired legend color. A color is filter disposed adjacent the photoluminescent material on a side of the legend panel opposite the light source. The color filter is selected to selectively transmit substantially all light in the selected wavelength range, and to selectively not transmit substantially all light outside the selected wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.