Patent ID: 7236657
Filing Date: 2007-06-26
Classification: G02B

Abstract:
1. An optical switch, provided in a middle of an optical transmission line, for switching between a case when a light sent through the optical transmission line is straightly transmitted, and a case when the light sent through the optical transmission line is transmitted to an outside location and the light from the outside location is introduced to the optical transmission line, the optical switch comprising: an input light emitting collimator device which extracts the light sent through the optical transmission line from an end face of an optical fiber of the optical transmission line on the upstream side, then, collimates and emits the light thus extracted; an output light receiving collimator device which receives the collimated light emitted from the input light emitting collimator device which is located a predetermined distance therefrom, and introduces the collimated light to the optical transmission line from the end face of the optical fiber of the optical transmission line on the downstream side; and a light switching part retractably arranged between the input light emitting collimator device and the output light receiving collimator device, wherein the light switching part includes: