Patent ID: 6147799
Filing Date: 2000-11-14
Classification: G02B

Abstract:
A delay element for delaying a collimated optical beam by an adjustable time interval, comprising:a pair of substantially parallel linear reflectors, each reflector facing the other reflector,an output lens secured to an end of a first linear reflector of the pair of linear reflectors, coupling the collimated optical beam to an output element,a first actuator coupled to at least one of the linear reflectors in the pair of linear reflectors, adjusting an offset relationship between the linear reflectors in a direction parallel to the pair of linear reflectors, the offset adjustment designating the number of reflections of the collimated optical beam by the reflectors before being received by the output lens; anda second actuator coupled to at least one of the linear reflectors in the pair of linear reflectors, adjusting a distance between the linear reflectors, whereby the offset relationship of the linear reflectors and the distance separating the linear reflectors are adjusted to delay the optical beam by a predefined time interval.