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The Importance of Optical Filter Orientation, Angle of Incidence, and Cone Half Angle

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The Importance of Optical Filter Orientation, Angle of Incidence, and Cone Half Angle

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  • Author: Daniel Obeid
Optical filter performance can be maximized by proper filter orientation and understanding the impact that angle of incidence (AOI) and cone half angle (CHA) have on spectral performance. These specifications, if unaccounted for, can severely degrade the performance of an optical system, so it is beneficial to take these variables into consideration when establishing an optical system incorporating optical filters.

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