Abstract: Golf putter apparatus includes a golf putter, a laser light generator and mirror mounting structure inserted in the shaft maintaining proper positioning of a mirror used to reflect laser light from the laser light generator and operable to hold the mirror in stable fixed position and orientation.

Abstract: There is disclosed a sample processing system for processing a sample contained in a liquid. Specifically, there is disclosed a sample processing system comprising a pipettor, and a cartridge. The cartridge comprises a chamber which has an inlet and an outlet. The chamber contains a microarray device having an active surface. The active surface is accessible to liquid contained in the chamber. The cartridge further comprises an optical interface that provides optical access to the active surface of the microarray device, an inlet port and an outlet port. The inlet port is so configured and dimensioned that it forms an air-tight connection with a pipette tip when the pipette tip is inserted into the inlet port.