| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical device hardly being affected by external temperature change, and a manufacturing method of the optical device.SOLUTION: In an optical device, a window part glass plate 15 is joined to a window part 16a of a lid member 16 with a solder layer 17 so that the inside of the optical device is sealed, and the solder layer 17 includes a gap part 17a isolated from the exterior space and interior space of the optical device.SELECTED DRAWING: Figure 5 |
