Removable covering system for luminaire optic
US9618189B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Oct 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminaire can comprise an optic that extends lengthwise within a linear cavity of a frame of the luminaire. The optic can comprise a diffuser, such as a sheet of diffusing acrylic material, for example. The optic can have edges located at opposing ends of the linear cavity. The luminaire can comprise a cover for each of the two ends of the linear cavity. The covers can cover the edges of the optic, so that at each cavity end, there is an overlap between the optic and the cover. The overlap can provide a gap that compensates for thermal expansion and contraction of the optic relative to the frame, which may have a metal composition. One or more magnets can removably attach the cover to the frame of the luminaire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.