Measuring device and measuring method
US10722112B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2014 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Nov 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tablet terminal 1A is a measurement apparatus for measuring a subject's eyelid position, and includes a display section 3 that generates a vertically long light emitting region to make a reflection image form on a corneal surface of the subject's eyeball, a camera 5 that images the reflection image formed by the display section 3, and an arithmetic circuit 7 that derives reflection image information concerning a size or position of the reflection image based on image data of the reflection image obtained by the camera 5, and measures the eyelid position based on the reflection image information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.