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Method for molding a resin optical lens and the optical lens made thereby

A technology of optical lenses and resins, applied in optics, optical components, optical components, etc., can solve problems such as deviation of refractive index of optical lenses

Inactive Publication Date: 2014-11-12
刘培瑄 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the existing method of molding resin optical lenses easily causes the deviation of the refractive index of the obtained optical lenses, the main purpose of the present invention is to provide a method for molding resin optical lenses, which molds resin optical lenses by the original thermocompression molding process , to improve the reliability of controlling the refractive index of optical lenses

Method used

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  • Method for molding a resin optical lens and the optical lens made thereby

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Embodiment Construction

[0019] Such as figure 1 Shown, the embodiment of the method for molding resin optical lens of the present invention, comprises the following steps:

[0020] Resin preheating: Take the optical resin pellets and heat them up to the preheating temperature PHT1, so that the resin pellets are in a softened state close to melting, and controlled in an appropriate quantity and shape.

[0021] Mold dedusting and preheating: several different molds are heated. The mold is mainly composed of a lower mold and an upper module, and the mold forms a cavity between the upper mold and the lower mold for forming optical lenses. When the mold is open, the upper mold and the lower mold are controlled to form a clean and dry field, and the surfaces of the upper mold and the lower mold are heated to a molding temperature PHT2 by heat source radiation, and PHT2>PHT1.

[0022] Mold entry: The quantitatively softened resin granules that have been preheated to PHT1 are successively placed into the ca...

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Abstract

A method for molding a resin optical lens and the optical lens made thereby are disclosed. The method includes the following steps: (1) Preheating the resin, (2) Dedusting and preheating the mold, (3) Moulding, (4) Mold clamping and pressurization, (5) Cold setting, and (6) Demoulding.

Description

technical field [0001] The present invention relates to an optical component made of resin, in particular to a method of molding resin optical lens and the optical lens made by the method. Background technique [0002] Optical components such as optical lenses are widely used in imaging products to project or read images. [0003] Generally, resin or glass is used as the material for manufacturing optical lenses. Among them, the known manufacturing method of using resin to make optical lenses is to use plastic injection molding technology to mold the resin to obtain optical lenses. Among them, the forming mold is processed to form a number of mold cavities And the sprue connecting each mold cavity, the molding mold is preheated to the working temperature, the resin particles are heated to a molten state, and then injected into the molding mold from the injection port of the molding mold, so that the molten resin is injected into the mold cavity through the runner , and then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/02B29C43/32G02B1/04
CPCB29D11/00009B29K2105/251B29C43/00B29C43/021
Inventor 刘培瑄罗咏如
Owner 刘培瑄