A novel human collagen-like protein CLAC occurring in brain amyloid and its precursor CLAC-P; genes encoding the same; cDNA of mouse CLAC-P and its deduced amino acid sequence; antibodies specific to these proteins; and methods of diagnosing treating and preventing Alzheimer’s disease by using the same. The hydrogen storage alloy is manufactured by weighing and mixing every material for the hydrogen storage alloy so as to provide an alloy composition represented by the general formula MmNiaMnbAlcCod or MmNiaMnbAlcCodFee, and controlling the manufacturing method and manufacturing conditions so that both the a-axis length and the c-axis length of the crystal lattice are in a predetermined range. The motion compensators are structurally and operationally separate and independent units and are configured for separate and mutually independent operation. A light probe illumination model based on a sun model and sky model is fitted to the captured light probes. These parameter values may be defined per channel identifier or for a group of CIDs. The sensor system provided can be flexible and easy to expand to cover large areas.