| 摘要 |
<p>A Dewar IR detector providing a focal plane (116) optically coupled to a spectral filter wheel (116) including a plurality of areas (120) each of at least a minimum size, at least one area being a calibration area (120A), the calibration area including: a substrate (122) having a first side (124) facing the IR focal plane (116) and a second side (126) opposite from the first side (124); a light transmitting edge section (128) disposed between the first side (124) and the second side (126); and, at least one light redirector (130) disposed at least partially within the substrate (122) and adjacent to the first side (124), the light redirector (130) structured and arranged to receive light from the edge (128) and to redirect the light out the first side (124). The Dewar detector further comprises a light source (132) optically coupled to the edge section (128).</p> |
