Combined multispectral and total-internal-reflectance biometric imaging
systems are disclosed. A platen has multiple facets, at least one of
which has a surface adapted for placement of a purported skin site by an
individual and another facet may include an optical absorber. An
illumination source and an optical arrangement are disposed to illuminate
the purported skin site with light from the illumination source along
distinct illumination paths, including paths at angles less than the
critical angle and paths at angles greater than the critical angle. Both
multispectral and total-internal-reflectance illumination are received by
an imaging system. The imaging system may include first and second
imaging locations adapted to record images from separate illumination
paths. The platen may also include non parallel exits facets.