Real image projection system with two curved reflectors of paraboloid of revolution shape having each vertex coincident with the focal point of the other

摘要

A real image projection system including a pair of facing, off-optical-axis curvilinear reflectors which, with a real object placed at one location along a common optical axis in the system, produce a projected image of the object at another location along the axis. In one form of the system, both curvilinear reflectors are real structures. In another form of the invention, one of the reflectors is real, and other virtual.