Definition of angular aperture

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Sheetak - Cooling at your Fingertip 11/24 LB

Photonics Dictionary

angular aperture: The angle between the most divergent rays that can pass through the lens to form an image. In a birefringent crystal light modulator or Pockels cell, the maximum angle in the incident light rays that gives a nominal 100:1 contrast ratio with applied half-wave voltage is a function of the crystal thickness.

Meadowlark Optics - Wave Plates 6/24 MR 2024

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