Patent ID: 6625002
Filing Date: 2003-09-23
Classification: G02B

Abstract:
A method for controlling a relative movement between faces of first and second optical components, one end face of the first optical component being faced with one end face of the second optical component, the method comprising the steps of:providing first attaching means, the first optical component being attached to the first attaching means; providing second attaching means, the second optical component being attached to the second attaching means, the first and second optical components attached to the respective attaching means, one of the first and second attaching means being movable in a direction to define a gap between the two faces; providing an electromotive force (EMF) to cause the two optical components to move relatively to each other in the direction, so that the faces of the two optical components are in proximity; and detecting contact between portions of the faces of the two optical components, wherein the EMF is provided by means of AC oscillation voltage so that the EMF vibrates the movable attaching means mechanically at a mechanical resonance.