Abstract: The present invention is a head-mounted vision rehabilitation system for aiding in the rehabilitation of the visually impaired which includes a headset having an anterior portion extending over a patient's eyes and a posterior portion partially encircling the patient's head; a camera for imaging an image source which includes a focusing means and an electro-optical sensor to create an image signal based upon light from the image source; a coherent video display located within the anterior portion of the headset for receiving the image signal and recreating the image onto the patient's eyes; a disengageable connector for removably attaching the camera to the anterior portion of the headset; and a control unit in communication with the camera, the video display and the headset for controlling the operation of the head-mounted vision rehabilitation system.

Abstract: A covert surveillance camera assembly comprises a dummy sprinkler head for camouflaging a camera. The sprinkler head has a pair of parallel arms and a mirror is mounted in a predetermined position relative to the camera and between the arms of the sprinkler head. An associated mechanism for scanning an object area may include a rotating component for turning the mirror at a predetermined angular speed in a first direction about an optical axis of the optical device. A dovetail prism is provided for stabilizing an image transmitted from an outlet end of the surveillance assembly, the prism being rotated at one half the angular speed of the rotating mirror in a second direction about the optical device's axis opposite to the first direction.

Abstract: A photo I.D. card having the photograph, and/or signature, and/or coded indicia of an authorized holder which is visible under ordinary room illumination also carries a second photograph of the user. The second photograph is in the form of a transparency which is sandwiched between a piece of retroreflective material and an optical filter which is opaque to light of normal intensity and wavelength but which is transparent to infra-red or ultra-violet radiation. Also disclosed is apparatus for reading both the visible and invisible photographs, signature, and data on the card by means of a CCTV system. Any attempt to alter or forge the I.D. card can, thus, be readily detected.

Abstract: A photo I.D. card having the photograph, and/or signature, and/or coded indicia of an authorized holder which is visible under ordinary room illumination also carries a second photograph of the user. The second photograph is in the form of a transparency which is sandwiched between a piece of retroflective material and an optical filter which is opaque to light of normal intensity and wavelength but which is transparent to infra-red or ultra-violet radiation. Also disclosed is apparatus for reading both the visible and invisible photographs, signature, and data on the card by means of a CCTV system. Any attempt to alter or forge the I.D. card can, thus, be readily detected.