公开(公告)号：JP2002090661A

公开(公告)日：2002-03-27

申请号：JP2001187550

申请日：2001-06-21

Applicant: LEICA MICROSYSTEMS

Inventor： ENGELHARDT JOHANN ,  HAY WILIAM C ,  HOFMANN JUERGEN

IPC: G02B26/02 ,  G01Q30/08 ,  G02B21/00 ,  G03B9/10 ,  G03B9/14

Abstract: PROBLEM TO BE SOLVED: To provide an optical device which has a simple structure and is safe with respect to human bodies, and a shutter for the light beam from a light source. SOLUTION: The optical device having a light source, in particular a laser light source and a cut-off device (1) for the light beam (2) from the light source, in particular a laser scanning microscope, has a means (3) of monitoring the operation state of the cutoff device (1) in the cut-off device (1). The shutter has at least two movable structure members (6, 7) which are so formed and arranged, so that mechanical shocks (impulses) generated by at least one moved structure members (6) is compensated (relaxed) by the movement of at least another structure member (7).