Pupil detection light source device, pupil detection device and pupil detection method
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United States of America Patent
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Feb 20, 2018
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N/A
app pub date -
May 2, 2014
filing date -
May 8, 2013
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Abstract
A pupil detection light source device includes an aperture disposed to face a subject to allow light from a pupil of the subject to pass therethrough, an illumination light for obtaining a light pupil image toward the subject from the inside or the vicinity of the aperture when seen from the subject, and an illumination light for forming a reflection image with glasses obtained by canceling a reflection image with glasses of the light pupil image using an image difference toward the subject from the inside or the vicinity of the aperture when seen from the subject.
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