| 摘要 |
PURPOSE: A coating method of a crystal lens is provided to maintain all the merits of the crystal lens, to prevent a ultraviolet transmission and a light reflection and to make a color of the lens beautiful. CONSTITUTION: The coating method of a crystal lens comprises the steps of: preparing a basic material of the lens by pre-treating lens obtained from a crystal ore; resting the basic material in a chamber of a coating machine with an electron gun for depositing a chemical on the surface of the basic material; inputting at least two kinds of materials selected from a zirconium oxide tablet and a particulate magnesium fluoride or a particulate aluminum oxide as a chemical to be deposited on the surface of the basic material to the chamber, in order; and completing a coating by coating with the chemicals using the electron gun and then desiccating.
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