Patent ID: 9389425
Filing Date: 2016-07-12
CPC Classification: F41G,G02B

Claim Text:
1. A real-world viewer comprising: viewing optics positioned along a viewing optical axis for viewing a field of view of the real-world; and an active display overlay unit optically coupled to the viewing optical axis of the viewing optics, for generating images and directing the images along the viewing optical axis of the viewing optics for simultaneous overlaid viewing of the images and the real-world scene as viewed in the field of view through the viewing optics, the active display overlay unit providing at least one of monochrome and full-color luminance ranging from 1200 fL or greater to the ocular of the host system with a luminance to the ocular of the host system to power consumption fL:mW ratio of 6:1 or greater, in which the active display overlay unit comprises: an active transmissive display for generating the images; an LED backlight for illuminating the active transmissive display with LED illumination; a lens arrangement for concentrating the LED illumination onto the active transmissive display; and a beam combiner aligned with the active transmissive display, and positioned along the viewing optical axis of the viewing optics for directing the images from the active transmissive display onto the viewing optical axis for combining with the field of view that is viewed by the viewing optics in an overlaid manner.