LED light scattering and analysing
US9534950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Mar 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2635
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A visible LED light scattering apparatus comprising a substantially hollow spherical cavity including a light entry port arranged to receive visible light from an LED mounted outside the cavity, a light exit port located opposite the entry port and through which the LED light exits the cavity for analysis, and a baffle located in a central region of the cavity in a direct optical path between the entry port and the exit port to interrupt the passage of visible LED light between the entry and exit ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.