Patent ID: 7667223

Claim:
A solid-state optical device, comprising: a solid-state element; a power supplying/retrieving portion on which the solid-state element is mounted, the power supplying/retrieving portion supplying or retrieving electric power to/from the solid-state element; and a glass sealing material that seals the solid-state element, wherein the glass sealing material has a thermal expansion coefficient equivalent to that of the power supplying/retrieving portion, and wherein the glass sealing material comprises a P 2 O 5 —Al 2 O 3 —ZnO-based low-melting glass that comprises 55 to 62 wt % of P 2 O 5 , 5 to 12 wt % of Al 2 O 3 and 20 to 40 wt % of ZnO in weight %.