High etendue UV camera for simultaneous four-color imaging on a single detector

摘要

We describe a high etendue (0.12 cm~2 sr) camera that, without moving parts, simultaneously images four ultraviolet bands centered at 140, 175, 215, and 255 nm on a single detector into a minimum of ～7500 resolution elements. In addition to being an efficient way to make color photometric measurements of a static scene, the camera described here enables detection of spatial and temporal information that can be used to reveal energy dependent physical phenomena to complement the capability of other instruments ranging in complexity from filter wheels to integral field spectrographs.