| 摘要 |
<p>The present invention provides a blue light blocking lens and a manufacturing method thereof capable of substantially lowering blue light transmittance of a plastic lens by adding an additive when manufacturing the lens. The blue light blocking lens according to the present invention mixes a monomer which is a material used in manufacturing a plastic lens with a blue light diverging material composed of a compound of thiophene and benzene to disperse blue light in a wavelength range of 380 to 400 nm. Besides the blue light diverging material, an ultraviolet light blocking material, a pigment, and a polymerization initiator can be further mixed in the monomer. The manufacturing method of the blue light blocking lens comprises: a functional material mixing step of adding and stirring the monomer, the blue light diverging material, and the ultraviolet light blocking material; a pigment mixing step of adding and stirring the pigment; a polymerization stirring step of adding and vacuum stirring the polymerization initiator; a composite injection step of injecting nitrogen after releasing vacuum to inject a composite mixed as described above into a mold; and a step of solidifying the composite and removing the composite from the mold. According to the present invention, the blue light transmittance of the lens is substantially lowered, and ultraviolet light is blocked. The blue light diverging material, the ultraviolet light blocking material, the pigment, etc. are uniformly mixed to maximize blocking efficiency of blue light and ultraviolet light and prevent glare, fatigueness of eyes, an eye disease, etc.</p> |
