MAGNIFYING DEVICE

摘要

A magnifying device such as binoculars or a microscope, including an optical system is described. The optical system includes an exit pupil, a reflective polariser ( 2427 ) proximate the exit pupil, a partial reflector ( 2417 ) disposed adjacent the reflective polariser opposite the exit pupil, and a quarter wave retarder ( 2425 ) disposed between the reflective polariser and the partial reflector. The reflective polariser is curved about two orthogonal axes and the partial reflector is spaced apart from the reflective polariser. The optical system is included in an eyepiece portion ( 2497 ) of the magnifying device which also uses an objective ( 2499).