Arrangement for extending beam paths in optical path of optical device, has chamber partially filled with liquid medium and is enclosed by housing, where chamber has entrance window and outlet window for light

摘要

The arrangement has a chamber partially filled with a liquid medium and is enclosed by a liquid-impermeable housing (7). The chamber has an inlet window (8) and an outlet window (9) for the light or has a common window for the entrance and the exit of the light. Mechanical or electrical elements are arranged in the chamber. The arrangement is arranged at a suitable location in optical path of an optical device.