A digital vision system for use in turbid, dark or stained water is disclosed. Turbid water is opaque to the optical wavelengths viewable by humans but is transparent to near infrared (NIR) light. Using NIR wavelength illumination in turbid water allows viewing of objects that would otherwise not be visible through turbid water. NIR light is used to illuminate an area to be viewed. Video cameras comprising optical filters receive the NIR light reflected from objects in the camera field of view, producing camera video signals that may be processed and communicated to projector that convert the video signals to independent optical output video that is projected to the eye of the at optical frequencies viewable by humans. The user is thus provided with a real time vision system that allows the diver to visualize objects otherwise not visible using white light illumination.
VISION ENHANCING SYSTEM AND METHOD
2017-03-16
Patent
Elektronische Ressource
Englisch
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