DUAL PRISM/FILTER FOR NARROWBAND PHOTOMETRY

摘要

An optical bandpass separator (100) and systems based thereon split target and continuum band signals. The separator (100) includes a first optical path for selectively transmitting a target band signal. The first optical path includes a first prism (115) and a first bandpass filter (116). The separator (100) also includes a second optical path non-overlapping with the first optical path for transmitting a continuum band signal. The second optical path includes a second prism (120) and a second bandpass filter (121). The spacing of the first and second optical paths allows the simultaneous and separate imaging or detection of the target band signal and the continuum band signal using a single imager or detector (140).