| 简介 |
PROBLEM TO BE SOLVED : one filter, and the filter function of the polarization filter color enhancement of the function of a photographic camera or the l SOLUTION : photographic camera or the like in use on the filter, and rare earth glass transparent glass 2 5 disposed between the polarizing film 4, 5 and the transparent glass 2 rare earth containing glass between the polarizing film 4 by adhesive 3a, 3b by affixing, transparent glass 2, polarizing film 4, 5 a rare earth containing glass filter integrated in a three-layer structure. Selected drawing : fig. 1 |
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