Test device and method for testing contact lens and test device for testing hydrous element
US10180374B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test device for testing a first contact lens classified as a specific type of contact lens is disclosed. The test device includes a light emitting unit and a detection unit. The light emitting unit emits a first incident light to the first contact lens to generate a first reflected light having a first light intensity, and the detection unit receives the first reflected light, in response to the first light intensity generates a first light intensity value, and implements a specific water content algorithm based on the first light intensity value to estimate an actual water content associated with the first contact lens, wherein the specific water content algorithm is constructed based on a water content reference data associated with the specific type of contact lens and a corresponding light intensity measurement data associated with the water content reference data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.