Discussion
The gloss trap in an integrating sphere is used to
Answer: C
Correct answer: remove the specular component from the measurement
The gloss trap is an opening in the sphere wall placed where the specular reflection from the sample falls, backed by a light-absorbing cavity. With it open the specular light is absorbed and the measurement is specular excluded; with it closed and made part of the sphere wall, the light is retained and the measurement is specular included.
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