| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing mechanism for lenses which is capable of easily fixing the lenses to a nylol frame. SOLUTION: At least either of the inner side parts and outer side parts of a pair of supporting frames of the nylol frame are pierced with two large and small holes via a connecting part and the other end of a high-tension string fixed at one end to the one side part of the supporting frames is inserted into the hole of the larger diameter out of these two holes and is pulled in this state to support the lens and is then moved and fixed to the hole of the small diameter via the connecting part, by which the lens is fixed.
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