TY - JOUR T1 - Prism fingerprint sensor that uses a holographic optical element: comment JO - Applied Optics UR - https://doi.org/10.1364/ao.36.005756 PY - 1997/08/10 AU - Gregory DA ED - DO - DOI: 10.1364/ao.36.005756 PB - Optica Publishing Group VL - 36 IS - 23 SP - 5756 EP - 5756 Y2 - 2026/02/04 ER -