| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnifying lens capable of adjusting an angle with a pen, by installing a sheet lens in the pen. Ž<P>SOLUTION: A slit is arranged in a vertical direction of a columnar ring for inserting the pen, and an arm is installed on a side surface of the ring. A rotary shaft is arranged on both ends of the arm. This idea is constituted by installed the sheet lens on the rotary shaft. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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