Multidirectional simultaneous observation optical system, image reader, image reading method, multidirectional simultaneous observation optical system composite body

摘要: A multidirectional simultaneous observation optical system is composed of, as shown in Fig. 2, side image acquiring prism systems (145A, 145B) and so forth for images of an object (11) bottom (185F) a image. The (145A) include path direction changing prisms (14A, 14B, 18F) respectively. An open space the top defined directly above (11). paths light beams emerging from extend upward (11), are disposed not to be blocked by other systems. As result, can accurately observed various directions simultaneously.