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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Ohtani; Tadasu
Address:
Kanagawa, JP
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
6507702 Device having sight line detecting function January 14, 2003
A device having a sight line detecting function includes an illumination unit for illuminating an eyeball of an observer looking into an observation screen, by a plurality of light-emitting members; an image-pickup member which receives the light reflected from the eyeball; a rotatio










 
 
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