Visual axis detection apparatus

Details Visual axis detection apparatus Visual axis detection apparatus

1994-05-26

1996-10-29

Perkey, W. B.

Photography

Exposure control circuit

Viewfinder light compensation

396383, G03B 1302

Patent

active

055701574

ABSTRACT:
The invention relates to an apparatus with an illumination device for illuminating an eyeball; a light-receiving device having a plurality of photoelectric changing elements for changing reflected light from the eyeball; a storage device for storing a plurality of Purkinje image candidates among the signals obtained by receiving light with said light-receiving device; a selection device for selecting suitable Purkinje image candidates as the Purkinje image from the plurality of Purkinje image candidates; and a detection device for detecting the state of the visual axis on the basis of the Purkinje image selected by the selection device.

REFERENCES:
patent: 3712716 (1973-01-01), Cornsweet et al.
patent: 3724932 (1973-04-01), Cornsweet et al.
patent: 4973149 (1990-11-01), Hutchinson
patent: 5182443 (1993-01-01), Suda et al.
patent: 5280312 (1994-01-01), Yamada et al.
patent: 5402199 (1995-03-01), Akashi

Affiliated with

Also associated with

Rating

Visual axis detection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Visual axis detection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visual axis detection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1789163