An LED device with improved angular color performance has a silicone lens shaped as a portion of a sphere. A sub tank has a predetermined interior space and an atmosphere communicating hole which makes the interior space communicate with an atmosphere, formed therein, and has an opening and closing valve which opens and closes the atmosphere communicating hole. The wall includes a first region configured to receive heat from the component and a second region configured to have a lower temperature than a temperature of the first region. The expandable prosthetic heart valve is expanded while the expandable prosthetic valve is in the support-stent interior and while the support stent is at the position on the surface of the outflow side of the heart valve, thereby causing one or more of the native leaflets of the native heart valve to be frictionally secured between the support stent and the expanded prosthetic heart valve.