Eye direction detecting device

Details Eye direction detecting device Eye direction detecting device

1992-11-25

1994-03-08

Adams, Russell E.

354 62, 354219, G03B 700

Patent

active

052935353

ABSTRACT:
An eye direction detecting device includes a light emitting optical system, which emits detecting light through a first optical path to be made incident upon an eye. A polarization beam splitter provided in the first optical path of the detecting light generates a second optical path. A light receiving optical system is provided in the second optical path, and a 1/4 wave plate is provided between the polarization beam splitter and the eye, so that light emitted from the light source can be effectively received by a light receiving element.

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