An electrical connector including a housing having a deflectable cantilevered mating connector latch arm, electrical contacts connected to the housing; and a connector position assurance member movably mounted to the housing between an open position and a closed position. From a solution of mixed metal trifluoroacetate obtained thus, purified mixed metal trifluoroacetate of which total content of water and acetic acid is 2% by weight or less is prepared. These holes are scanned optically by a commercial apparatus that ordinarily detects wafer defects that resemble the holes. In the raised lifting position, the end of the plant chassis is lifted off the ground and is supported by the support and guide surface of the lifting cradle. In order to avoid impact noise upon rapid release of the brake, the stop washer of the first piston has a device for the damped abutment of the sleeve. A microlens having a plurality of mutually adhered layers of cured, optically transmissive material, methods of forming same, and systems so equipped are disclosed.