Apparatus for retro-reflection measurement using a holed mirror and circular aperture for annular band detection
US10393655B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2015 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to an apparatus for retro-reflection measurement. By using the one or more sampling devices each consists of a holed mirror and an circular aperture, and corresponding one or more measuring devices, it realize the retro-reflection measurement in one or more observation angles at one time. By flexibly selecting the size of the circular apertures and holed mirrors, it can accurately adjust the measuring annular bands and corresponding observation angles. Without any other intermediate devices, it can realize complete annular band of light measurement which ensures the measurement accuracy. At the same time, filters and monitor device can be set flexibly to realize various measurement functions. It has the advantages of speed measurement, high accuracy, small volume, wide application, comprehensive functions, and can be widely applied in laboratory, industrial production line and field measurement etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.