Helmet display system
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United States of America Patent
Stats
-
Jul 8, 1997
Grant Date -
N/A
app pub date -
May 25, 1994
filing date -
Jun 4, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A helmet display system is provided comprising a display visor 3 located on helmet 1 on which helmet is also positioned image projection means for projecting an image via a holographic combiner 4 on the display visor 3. The helmet further comprises an anti-glare visor 2 which has optical transmission characteristics similar to those of a neutral density visor, with the exception that these characteristics are modified to compensate for the low transmission value of the display visor 3 to frequencies within a narrow waveband to which the combiner 4 is tuned. The invention provides a helmet display system which can be used in conjunction with an aircraft head-up display if required.
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