Compact multi-band visible camera for lm-class fast telescopes

摘要

Most of the small 1m-class telescopes designed for fast tracking of transient object, like GRBs, are equipped with infrared and visible cameras, fed through a dichroic. We studied a new concept for a fast and compact multi-band visible camera, using successive dichroics, to cover simultaneously many visible bands (U,B,V,R, and I), sampled with one more CCD detectors. This extended spectral coverage will help to observe transient faint objects. To keep envelope size, weight and overall cost at a reasonable level, a trade-off has been carried out.