| 摘要 |
PURPOSE: A knob is provided to simply perform assembly work by forming an integrated structure through injection of an external housing, a reflector, and a cap. CONSTITUTION: A knob includes a reflector(60) arranged inside an outer housing(50), and a cap(70). The reflector emits light of an LED lamp. The cap covers the penetrated top end part of the outer housing. The cap is formed in a small diameter structure. The reflector is exposed between the outer surface of the cap and the inner surface of the external housing.
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