Stereoscopic lens manufacturing method

Abstract

The invention discloses a stereoscopic lens manufacturing method, in which a stereoscopic lens material with adjustable curvature radius and focal distance under the condition of a fixed spacing is produced through combination of a mould head and a pair of moulds. The stereoscopic lens manufacturing method comprises a device preparing step and a stereoscopic lens material producing step, wherein the device preparing step comprises the following substeps: preparing the mould head for extruding molten plastic, manufacturing aspheric stereoscopic lens moulds for extruding and moulding a lens, and manufacturing a polishing roller for polishing the other surface of the lens material; the stereoscopic lens material producing step comprises the following substeps: adjusting the fitting degree of the moulds and the molten plastic, adjusting the extruding amount, the depositing amount and the producing speed of the mould head, extruding one surface of the plastic by using the aspheric stereoscopic lens moulds so as to form the front surface of the stereoscopic lens material, and polishing the other surface of the plastic by using the polishing roller so as to form the back surface of the stereoscopic lens material, by the stereoscopic lens manufacturing method, the stereoscopic lens material which has the same lens spacing, but has different curvature radiuses and corresponding focal distances.

Description

technical field [0001] The present invention relates to a manufacturing method of a stereoscopic lens, in particular to a manufacturing method of a stereoscopic lens capable of displaying multiple curvature radii and corresponding focal distances and maintaining the inherent transparency of the plastic itself. Background technique [0002] In the past, in order to make a three-dimensional lens material capable of displaying a three-dimensional effect, it was necessary to first set the thickness of the focal length layer of the three-dimensional lens material and the number of lenses to be arranged within a size range of one inch. Then design according to the radius of curvature of the lens, the refractive index of the plastic itself, and the distance between the lenses, and make the mold based on this. [0003] With the above-mentioned manufacturing method, only one kind of three-dimensional lens material can be manufactured in one mold. Because according to above-mentioned...

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Problems solved by technology

However, the use of PET materials with GAG structure has obvious disadvantages, because G-PET is expensive and increases the chance of defective products in the production process

In addition, although the corona discharge treatment method produces a polar structure due to the oxidation of the surface of the three-dimensional lens, which can increase the surface energy and thereby enhance the affinity with printing ink or adhesive, it will also lead to the adsorption of foreign matter due to static electricity. When corona is carried out uniformly or when there is residual foreign matter, localized concentrated discharge will occur and cause damage to the surface of the three-dimensional lens

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