Contact lens manufacturing method and contact lenses

A technology for contact lenses and manufacturing methods, which can be applied to other household appliances, optical components, household appliances, etc., can solve problems such as lens eccentricity defects of contact lenses, and achieve the effect of reducing the risk of lens eccentricity defects and improving quality

Pending Publication Date: 2022-01-07
深圳市大仕城光学科技有限公司
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a contact lens manufacturing method and the contact lens, aiming at solving the technical problem that the existing contact lens production process easily leads to lens eccentricity defects in the produced contact lenses

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  • Contact lens manufacturing method and contact lenses

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] refer to figure 1 , an embodiment of the present invention provides a contact lens manufacturing method, the contact lens manufacturing method comprises the following steps:

[0031] Step S11, performing a static elimination on the convex mold and the concave mold used to form the contact lens;

[0032] Step S12, matching the punch after the first static elimination with the concave mold after the first static elimination, and performing the s...

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Abstract

The invention discloses a contact lens manufacturing method and contact lenses. The contact lens manufacturing method comprises the following steps that primary static elimination is carried out on a male die and a female die used for forming the contact lenses respectively; matching is carried out on the male die and the female die which are subjected to primary static elimination, and secondary static elimination is carried out on the male die and / or the female die which are / is in the matched state; the male die and the female die which are subjected to secondary static elimination are separated, and the male die and the female die which are separated are installed on an injection molding machine; contact lens forming liquid is injected into the female die, and the male die is pressed into the female die containing the contact lens forming liquid for hardening forming of the forming liquid; and after the contact lens forming liquid is hardened and formed, the male die is separated from the female die, demolding is carried out on a formed part adhered to the male die, and a contact lens finished product is obtained. The contact lens manufacturing method disclosed by the invention can solve the technical problem that the lens eccentricity defect of the produced contact lenses is easily caused in the existing contact lens production process.

Description

technical field [0001] The invention belongs to the technical field of contact lens production, and in particular relates to a contact lens manufacturing method and the contact lens. Background technique [0002] At present, with the popularization of electronic products and the change of modern work and entertainment methods, people's demand for work and entertainment equipment such as computers and mobile phones is increasing day by day. Problems that some people face. With the emergence of vision problems, the number of people wearing glasses is gradually increasing. Compared with traditional glasses, the shape of contact lenses is more concealed, which avoids the impact on the external image. Therefore, contact lenses are gradually accepted and favored by more and more people. . [0003] In related technologies, in order to improve the production efficiency of contact lenses and reduce production costs, the contact lens industry generally adopts the full mold method fo...

Claims

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Application Information

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IPC IPC(8): B29D11/00
CPCB29D11/00038B29D11/00125
Inventor 李珈仪李朝华
Owner 深圳市大仕城光学科技有限公司
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