OPTICAL PART GUIDE MECHANISM

摘要

A slide guide mechanism which linearly displaces optical parts, such as mirrors, shutters, and wavelength filters, in order to stabilize the insertion loss of optical parts at a low level by a simple guide mechanism. The slide guide mechanism is adapted to linearly move along two V-shaped non-parallel planes, whereby even if design and production accuracies are somewhat poor or even if the device is somewhat deformed as it is thermally expanded by temperature changes, it is made possible for optical parts, such as moving mirrors, to maintain high angular accuracy or high positional accuracy.