| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to manufacture an optical device friendly to environment, wherein calcination temperature can be suppressed down to≤400°C and reliability of optical characteristics can be enhanced. SOLUTION: In the optical device consisting of an optical element and a holder holding the optical element, the optical element and the holder are joined to each other by using low melting point glass consisting essentially of vanadium oxide and boric acid and containing at least one of zinc and barium. COPYRIGHT: (C)2003,JPO
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