Patent ID: 6995889

Claim:
An optical reflecting device for a system implementing a selective rotation of said optical reflecting device, said optical reflecting device comprising: an optical refractor; an optical reflector interfaced with said optical refractor; wherein a light beam entering said optical reflecting device at a first rotation position is sequentially refracted by said optical refractor, reflected by said optical reflector and refracted by said optical refractor prior to exiting said optical reflecting device at a first exit angle relative to a normal axis of said optical reflector at the first rotation position; wherein, in response to said optical reflecting device being rotated from the first rotation position to a second rotation position by a rotation angle, the light beam is sequentially refracted by said optical refractor, reflected by said optical reflector and refracted by said optical refractor prior to exiting said optical reflecting device at a second exit angle relative to the normal axis of said optical reflector at the first rotation position; and wherein an absolute value of a difference between the first exit angle and the second exit angle is greater than twice an absolute value of the rotation angle.