Patent ID: 9158097
Filing Date: 2015-10-13
Classification: G02B,G02F

Abstract:
1. An optical arrangement for varying a magnification in an optical path, wherein this optical arrangement as a whole encompasses at least two different possible magnifications, comprising: a first optical element having optical power, a second optical element having optical power being spaced from the first optical element, an optical switch having a switching element by which light is propagated in a choice of directions at a common intersection, an entering optical path along which light propagates into the optical arrangement, an exiting optical path along which the light propagates out of the optical arrangement, a first magnification path along which the light encounters one or more of the first and second optical elements for effecting a first amount of magnification, a second magnification path along which the light encounters one or more of the first and second optical elements for effecting a second amount of magnification, the optical switch being switchable between a first state at which the switching element directs light from the entering optical path through the common intersection to the first magnification path and a second state at which the switching element directs light from the entering optical path through the common intersection to the second magnification path.