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US 5,089,914 AGranted
Thermal camera arrangement
AssigneeEEV Limited
InventorJohn A. Prescott
Life of this patent
Estimating the term…
Abstract
A thermal camera is mounted within a helmet and is arranged such that the optical path in free space from its output is wholly within the volume defined by the helmet and the helmet faceplate. The output iminges on a concave mirror/lens combination located below the wearer's sightline. The arrangement is particularly suitable for fire fighting and search and rescue applications.
Claims19
A thermal camera arrangement comprising:
- a helmet;
- a faceplate attached to said helmet;
- and a thermal camera mounted on said helmet such that a radiation output of said camera is viewable by a wearer of said helmet via an optical path through free space from the camera output to the wearer's eye, said optical path being substantially wholly within a volume defined by said helmet and said faceplate.
Dependencies are inferred from the claim text.