F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 5/04 (2006.01) B60Q 1/30 (2006.01) B60Q 1/44 (2006.01) G02B 5/32 (2006.01) G03H 1/26 (2006.01) F21Q 1/00 (1995.01)
Patent
CA 2135698
37 DUAL IMAGE CHMSLS ABSTRACT OF THE DISCLOSURE A hologram structure for use in a holographic center high mounted stoplight system for a vehicle. The hologram structure includes first and second hologram layers laminarly secured to each other, each having a plurality of bright hologram cells and dim hologram cells formed there- in, and each hologram cell being configured to diffract light into a predetermined solid angular region. The bright hologram cells and the dim hologram cells of each hologram are arranged in a pattern to produce a recogniz- able pattern of bright and dim areas.
Hughes Aircraft Company
Sim & Mcburney
LandOfFree
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