| 摘要 |
PROBLEM TO BE SOLVED: To realize lower manufacturing cost and improved productivity by facilitating adjustment and to enable accurate and stable adjustment. SOLUTION: A module casing 11 is provided with a lens support part 12 having a lens support hole 12s supporting a transmission lens 3 and also provided with a transmission lens adjustment part 14 which can adjust the position of the transmission lens 3 by forming a recessed part 13, causing the lens support hole 12s to have a step, on the internal surface 12f of the lens support part 12 which faces the inside of the module housing 11 and gripping the transmission lens 3 in the recessed part 13. COPYRIGHT: (C)2003,JPO
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