| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical device sealing structure which can prevent lowering of airtightness.SOLUTION: An optical device sealing structure 1 accommodating an optical device 2 in a sealed space 30 includes a case 19 accommodating the optical device 2 and lid part 20 provided on the case 19 to cover an opening 19c of the case 19. The case 19 has a first substrate 19a and a second substrate 19b. The first substrate 19a is formed of a die cast metal, and the lid part 20 and the second substrate 19b are formed of a metal having a gas content of 5 ml/100 g or less. The second substrate 19b is bonded to an area, facing the lid part 20, of the first substrate 19a. A molten part 24 is formed in the vicinity of a boundary of the lid part 20 and the second substrate 19b. The second substrate 19b has a larger thickness T than that of the molten part 24. |
