发明授权
US06701041B2 Optical filter module and optical apparatus using the same 失效
光滤波器模块及使用其的光学装置

Optical filter module and optical apparatus using the same
摘要:
A groove portion to stay the adhesive agent penetrated into either one of closely contacted surfaces of the rod lens and the optical filter is formed, thereby, the penetration of the adhesive agent into the optical path is prevented.
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