<p>A reflective hologram (3) covers part of the light-transmitting layer (1), its structure such that a light beam (17) incident at angle alpha on the intermediate surface (13), is reflected back along virtually the same path.</p>
申请公布号
EP1195598(A3)
申请公布日期
2002.08.14
申请号
EP20010120112
申请日期
2001.08.21
申请人
HSM HOLOGRAPHIC SYSTEMS MUENCHEN GMBH
发明人
DAUSMANN, GUENTHER, DIPL.-ING.;YANG, ZISHAO, DR.;HOCHENBLEICHER, GERHARD, DR.
