CHARACTER GENERATOR FOR LARGE FONT ARRAY
Original Publication Date: 1976-Feb-29
Included in the Prior Art Database: 2004-Mar-26
Xerox Disclosure Journal
Storage and retrieval of up to 20-30 x l0~ different characters is achievable by the system shown, Characters arranged in a spiral format and timing marks arranged in a circular format are recorded on a transparent material in the form of disc 2 by means of microphotographic techniques, The retrieval optics are mounted on a rotating terret and include a prism 3 and a reflector 4 mounted on one side of disc 2 and a reflector 5 and a prism 6 mounted on the other side of disc 2, The disc 2 is rotated at a high speed and the retrieving optics are rotated at a comparatively low speed such that when a desired character is in proper alignment with the re- trieval optics light from a flash lamp or modulated light source is projected through one half of the retrieval optics, through the desired character, through the other half of the retrieval optics and through a projection lens 7 to an image plane.