Integrated display image intensifier assembly

A system (S) for combining multi-spectral images of a scene includes a first detector (18) for transmitting a scene image in a first spectral band. A separate, second detector (22) senses the scene in a second spectral band. The second detector (22) has an image output that is representative of the scene. A transparent display (26) mounted in the output viewing path (30) of the first detector (18) and displays a displayed image in the second spectral band. The image of the transparent display is aligned such that the image (12) of the scene in the second spectral band combines with the image output (10) in the first spectral band. The combined multi-spectral images (54) are conveyed to an output (32) for a user (U).