| 摘要 |
PROBLEM TO BE SOLVED: To increase illuminating light quantity by using an optical adapter as it is and making illuminating light quantity larger than when only the optical adapter is attached inexpensively. SOLUTION: The optical adapter 3 with a built-in LED 25 is freely attached to/detached from the edge part 15 of the insertion part 11 of a scope unit 2, and a boost module 4 provided with LEDs 31a, 31b to 31i are freely attached to/detached from space between the optical adapter 3 and the scope unit 2. By attaching the boost module 4, the illuminating light quantity is made larger than when only the optical adapter 3 is attached inexpensively. COPYRIGHT: (C)2007,JPO&INPIT
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