Optical device for measuring the optical properties of materials
US11567004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2019 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.