NASA NTRS · 19680000206
Infrared viewing permits human iris response studies
Abstract
Infrared image converter tube and a filtered light source monitor and measure the eye of a subject during experimental task-work operations to obtain a more natural measurement of unimpeded iris response. The device permits observation in the near infrared region, with little stimulation to the eye except by normal ambient lighting.
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Schnass, E. R.. 1968-06-01. Infrared viewing permits human iris response studies. https://ntrs.nasa.gov/citations/19680000206
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