Spectrograph
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United States of America Patent
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-
Jan 9, 2018
Grant Date -
Mar 2, 2017
app pub date -
Aug 31, 2015
filing date -
Aug 31, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A spectrograph as disclosed includes a housing, wherein a wall of the housing includes first, second and third openings, an entrance slit located at the first opening and configured to direct light along a first light path portion in the interior of the housing, a dispersive element located at the second opening and configured to receive light from the entrance slit along the first light path portion and direct light along a second light path portion in the interior of the housing, a detector located at the third opening and configured to receive light from the dispersive element along the second light path portion. The detector can include first and second groups of light-sensitive regions. A cover can be positioned to separate the first group of light-sensitive regions from the light path, the second group of light-sensitive regions being exposed to the light path.
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