(under subclass 368) Subject matter including structure for displaying a real image on a viewed screen.
(1) Note. The screen may be at an intermediate or terminal image plane and may, for example, comprise a ground glass screen, a front projection screen, a fiber optic output face, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
400, for a telescope with a viewed screen.
443+, for a viewing screen.
505, for an extended spacing structure for optical elements including a screen.
SEE OR SEARCH CLASS
250, Radiant Energy, 370.08+, for invisible radiant energy responsive signalling, including imaging.
313, Electric Lamp and Discharge Devices,
364+, for cathode-ray tubes and subclasses 523+ for image intensifier tubes, etc.
315, Electric Lamp and Discharge Devices: Systems,
1+, for cathode-ray tube circuits, including image intensifiers.
353, Optics: Image Projectors,
18, 47, 67, 72+, 74+, and 79+ for an image projection and viewing screen in combination.
