| 摘要 |
PURPOSE:To contrive to shorten boring treatment time extremely, by setting at least one parallel plane mirror which reflects part of incident light by a first face, reflects the rest by a second face and divides the incident light into two reflected parallel incident lights in front of a lens. CONSTITUTION:Laser beam is collected by using a lens and a test specimen such as a live cell, etc., traveling relatively based on the lens is irradiated with the laser beam and bored. In the operation, at least one of parallel plane mirrors 24 and 24' which reflects part of incident light by a first face, reflects the rest by a second face and divides the incident light into two parallel reflected lights is set in front of a lens and the laser beam A sent to the lens is divided into plural laser beams A1-A4. Namely, since the laser beam is divided by the parallel plane mirror and a cell, etc., can be bored at plural positions at the same time when a stage is scanned to bore the cell, etc., and the cell, etc., is bored, a boring treatment time can be extremely shortened. |
