| 摘要 |
PURPOSE:To enable the good observation of a specimen, by providing a container having a liquid metal held therein to the leading end part of an acoustic wave lens. CONSTITUTION:A holding part 14 is provided to the leading end part of a spherical lens 1 and a cylindrical hole having a diameter same to or slightly larger than that of a recessed hole possessed by the lens 1 is provided to the central part of said lens 1. When a liquid metal 15 as a medium is inserted into said hole in the almost same amount as a sphere formed along the radius of curvature of the recessed hole, the liquid metal 15 is contacted with the holding part 14 and the lens 1 and held. In this case, because a part of the leading end part of said lens 1 is contacted with a specimen 17 and an acoustic wave can be propagated to the specimen 7. Because the sphere of the liquid metal 17 is held from the periphery thereof by the holding part 14, it is not scattered even by shock from the outside and stable operation can be operated and the good observation of the specimen is enabled. |
