Light fixture lens retaining device and method
US7385771B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a retainer assembly and method for securely retaining a lens in a housing such as a light fixture bezel. An exemplary retainer assembly includes a lens and lens seal within a light bezel having threads and a contact surface formed on the bezel interior, a retaining ring having external features for engaging the threads on the bezel interior, and a contact ring disposed between the retaining ring and the lens to be secured in the bezel. An exemplary method involves the steps of placing a seal around the periphery and edge of a disc shaped lens, seating the lens within the lens bezel or retaining ring, and advancing the retaining ring within the bezel with a contact ring adjacent the lens and seal to prevent wear from rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.