Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northern Telecom LtdfiledCriticalNorthern Telecom Ltd
Priority to CA000498994ApriorityCriticalpatent/CA1237179A/fr
Application grantedgrantedCritical
Publication of CA1237179ApublicationCriticalpatent/CA1237179A/fr
Device for measuring the position of the fixing point of an eye on a target, method for illuminating the eye and application for displaying images which change according to the movements of the eye