View finder optical system with eye direction detection device

Details View finder optical system with eye direction detection device View finder optical system with eye direction detection device

1996-08-28

1999-06-29

Mathews, A. A.

Photography

Eye tracking

396373, 396386, 351210, 359600, G03B 1306, G03B 1700

Patent

active

RE0362379

ABSTRACT:
A view finder optical system including a window of an eye piece portion comprising an eye cup having a contact surface, a shape of the contact surface being made so as to incline an axis of the lens with respect to an axis of the eye piece. The shape of the contact surface is curved corresponding to the lens's shape. The contact surface is made so as to conform to a lens of glasses.

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