发明名称 APPARATUS AND METHOD FOR REMOVABLY MOUNTING FILTERS TO A PHOTOGRAPHIC LENS
摘要 A coupling system and method for removably mounting filters to a photographic camera lens. The coupling system includes a lens coupling element and filter coupling element. The lens coupling element and filter coupling element have magnetically attractive and telescopically aligning portions. The forward end of the filter coupling element operably supports a filter material.
申请公布号 US2011026916(A1) 申请公布日期 2011.02.03
申请号 US20100904414 申请日期 2010.10.14
申请人 NEIMAN DAVID 发明人 NEIMAN DAVID
分类号 G03B17/00 主分类号 G03B17/00
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