Device for testing optical properties and method for testing optical properties
US10823892B2 · kind B2 · utility
2Cited by
0References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 29, 2017 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Nov 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8848
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present application relates to a device for testing optical properties and a method for testing optical properties using the same. The device of the present application has inexpensive manufacturing and maintenance costs, is capable of testing a wide range of plane directional phase differences, and provides the method for testing optical properties with improved identification efficiency of the phase retardation axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.