Patent · US Active

Pupil radius compensation

US10820796B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

Tobii AB · SE

Inventors

Mark Ryan · McMinnville, US
Simon Johansson · Danderyd, SE
Erik Lindén · Danderyd, SE

Key dates

Filing date	Sep 7, 2018
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Jan 16, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0081
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method is disclosed, comprising obtaining a first angular offset between a first eye direction and a first gaze direction of an eye having a first pupil size, obtaining a second angular offset between a second eye direction and a second gaze direction of the eye having a second pupil size, and forming, based on the first angular offset and the second angular offset, a compensation model describing an estimated angular offset as a function of pupil size. A system and a device comprising a circuitry configured to perform such a method are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.