Patent ID: 7428104
Filing Date: 2008-09-23
Classification: G02B

Abstract:
1. An optical device for collinearly combining, for illumination in scanning microscopy, a first light beam and a second light beam having a different wavelength than the first light beam, the optical device comprising: a first dispersive element configured to split a first reference beam from the first light beam and a second reference beam from the second light beam; a second dispersive element configured to split a third reference beam from the first light beam and a fourth reference beam from the second light beam; a position detector configured to detect respective positions of the reference beams; and a control element configured to independently adjust, as a function of the detected respective positions of the first and third reference beams and second and fourth reference beams, at least one of a propagation direction of the first light beam, a propagation direction of the second light beam, a position of the first light beam, and a position of the second light beam.