Semi-transparent reflective layer for a phase hologram

Details Semi-transparent reflective layer for a phase hologram Semi-transparent reflective layer for a phase hologram

1993-10-26

1996-04-30

Lerner, Martin

Optical: systems and elements

Holographic system or element

Authentication

283 86, 283 91, 283 94, 359 15, 359584, B42D 1500, G03H 100, G02B 532, G02B 528

Patent

active

055130194

ABSTRACT:
A phase hologram is embossed in a mylar web having a reflective layer which is made from tin tungsten oxide, zinc sulfide, or a mixture thereof. The embossed microtexture produces a hologram that is semi-transparent, thereby allowing the visualization of indicia underlying the hologram.

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