Visual line detecting device

Details Visual line detecting device Visual line detecting device

1994-01-31

1995-05-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

351210, 354 62, 354219, G03B 1302, G02B 2702

Patent

active

054163170

ABSTRACT:
A visual line detecting device having an eyeball lighting unit that irradiates the eyeball of a viewer with a luminous flux, and a visual line detecting unit that detects the visual line of a viewer from the reflected image on the cornea surface of the eyeball, wherein the eyeball lighting unit is designed so that the reflected image on the cornea surface attains a specified shape.

REFERENCES:
patent: 4574314 (1986-03-01), Weinblatt
patent: 4836670 (1989-06-01), Hutchinson
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5182443 (1993-01-01), Suda et al.
patent: 5335035 (1994-08-01), Maeda

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