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Manufacturing technique of PC lens

A production process and lens technology, applied in the field of PC lenses, can solve problems such as low production efficiency, affecting product yield and internal quality, and achieve the effects of good product quality, scientific and reasonable process design, and improved production efficiency.

Inactive Publication Date: 2018-02-02
JIANGSU RARE OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still many problems affecting the product yield and internal quality in the production of PC lenses in the prior art, and there are also problems of low production efficiency

Method used

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  • Manufacturing technique of PC lens

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The specific steps of the PC lens production process in this embodiment are as follows:

[0055] A. baking material

[0056] Use a dehumidifier to dry the material. Fill the raw material polycarbonate particles into the dehumidification dryer drying drum so that the raw material can be fully dried. The standard baking temperature is 120°C, continuous baking for more than 4 hours, and the baking can not be interrupted in the middle, in order to meet the normal production requirements, the baking time should not exceed 48 hours, otherwise the properties of the raw materials will be changed, or the raw materials will be damaged during production. It is easy to cause carbonization or yellow film phenomenon. When drying the material, the cooling tower must be turned on at the same time to provide cooling and temperature control for the dehumidification dryer.

[0057] B. Injection preparation

[0058] a. Assemble and debug molds and mold cores according to lens specif...

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Abstract

The invention discloses a manufacturing technique of a PC lens and relates to the technical field of PC lenses. The manufacturing technique of the PC lens adopts an advanced technique and equipment. The technique method is scientific and reasonable in design and the processes are seamlessly connected with one another. The automation level and production efficiency of the whole line are improved and through the processes of drying a material, injection preparation, injection, inspection of a semi-finished product, washing, drying, primary hardening, primary hardening and drying, secondary hardening, secondary hardening and drying, cooling, and inspection of finished product and the like, and the PC lens is produced and is high in rate of finished products and good in production quality.

Description

technical field [0001] The invention relates to the technical field of PC lenses, in particular to a PC lens production process. Background technique [0002] PC lens is also called "space film" and "cosmic film". The chemical name of its raw material is polycarbonate (POLYCARBONATE, PC for short), which is a thermoplastic material, that is, the raw material is solid, and it is shaped into a lens after heating. PC lens has extremely strong toughness and is not broken (2cm can be used for bulletproof glass), so it is also called safety lens. PC lens material has the advantages of ultra-thin, ultra-light, high impact resistance, UV protection and good light transmittance, and is widely welcomed, especially suitable for people with high numbers, aesthetics, sports people, children and the elderly. For example, the United States stipulates that children under the age of thirteen must wear PC lenses. In the production of PC lenses, from raw material input to product release, ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00
CPCB29D11/00423B29D11/00432B29D11/00442
Inventor 包松养
Owner JIANGSU RARE OPTICS CO LTD