System and method for performing tear film structure measurement
US9833139B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2017 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods are described for performing structure measurement on a tear film of an eye of a subject. At least a portion of a surface of the tear film is illuminated using a broadband light source. A spectrum of light of the broadband light that is reflected from at least one point of the tear film is measured, using a spectrometer. Color information for a plurality of points of the tear film is obtained, by imaging a field of view of the tear film using a color camera. Using a processing unit, data from the color camera and data from the spectrometer that are indicative of characteristics of the tear film are received, and based upon a combination of the data received from the color camera and the data received from the spectrometer, an output is generated that is indicative of a structure of the tear film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.