Manufacturing method of composite Fresnel spectacle lens
A production method and technology of spectacle lenses, which are applied in the directions of glasses/goggles, optics, instruments, etc., can solve the problems of uncomfortable wearing, increased weight of glasses, and thick lenses, and achieve the effect of wide application and good practicability.
Pending Publication Date: 2021-02-02
付祖家
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Problems solved by technology
[0004] In order to solve the problem of increased weight of glasses caused by thicker lenses and uncomfortable wearing, the present invention provides a method for manufacturing composite Fresnel spectacle lenses, which realizes the frivolity and beauty of the lenses and makes them more comfortable to wear
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[0036] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:
[0037] Such as Figure 1~Figure 8 Shown, a kind of composite Fresnel spectacle lens manufacturing method comprises the following steps;
[0038] Step 1: Use the Fresnel mirror design method to make molds A, B, and C:
[0039] The mold A is a high-precision lens mold of each spherical diopter, such as +20.00D~0.00D~-30.00D, and the optical center of the mold is located on the center of the circle, such as figure 2 shown;
[0040] The B mold is a high-precision lens mold of each cylinder diopter, such as -0.25D~-5.00D, and the center line of the cylinder of the mold passes through the center of the circle, such as image 3 shown;
[0041] The C mold is a high-precision 0 diopter lens mold, such as Figure 4 shown;
[0042] The textured surface of the lens mold is convex or concave, and one side of the mold is a smooth surface with high precision...
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Abstract
The invention relates to a manufacturing method of a composite Fresnel spectacle lens. The method comprises the following steps of: 1, manufacturing a mold by using a Fresnel lens design method, wherein the mold A is a high-precision diopter lens mold of each spherical lens; the mold B is a high-precision lens mold for each cylindrical lens diopter; the mold C is a high-precision zero-diopter lensmold; 2, selecting a mold according to a prescription to manufacture a lens; 3, hardening, coating, antireflection and antireflection are carried out on the lens; 4, overlapping the lens texture surfaces of each eye inwards, enabling the smooth surfaces to face outwards, fixing by a clamp, and performing center positioning; 5, edging, namely cleaning and air-drying the edged lens; and 6, pairingthe lenses, sealing and curing to finish the manufacturing of the composite Fresnel spectacle lens. According to the invention, the composite Fresnel spectacle lens is manufactured by adopting the Fresnel lens, and the manufactured lens has the characteristics of lightness, thinness, attractiveness and clearness, so that the problems that the traditional lens is thick and heavy and is uncomfortable to wear are solved.
Description
technical field [0001] The invention relates to the technical field of optical lens production, in particular to a method for producing a composite Fresnel spectacle lens. Background technique [0002] At present, the number of people with myopia is gradually increasing, and the degree is getting higher and higher. With the increase of the degree, the thickness of the spectacle lens is also getting thicker. The thick lens not only increases the weight of the glasses, but also gradually reduces the aesthetics of the shape. In order to make the lens thinner and develop optical materials with high refractive index, the price of the lens keeps rising. [0003] Fresnel lenses are used in clinical glasses. As far as the mirror structure of Fresnel lenses is concerned, one side is a plane, and the other side is a textured surface, such as a kind of ultra-thin three-dimensional glasses disclosed by patent announcement number CN 203350536 U , which includes lenses and frames. The le...
Claims
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IPC IPC(8): G02C7/02
CPCG02C7/022G02C7/027
Inventor 付祖家付骁勇付泽宇
Owner 付祖家