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Lens manufacturing system and method

A mirror-making system and lens technology, applied in the field of mirror-making system and lens preparation, can solve problems such as reducing the lens yield, and achieve the effects of reducing the generation of air bubbles in the lens material and improving the lens yield.

Inactive Publication Date: 2015-06-17
GALLANT PRECISION MACHINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this injection method is easy to inject bubbles into the lens material on the maste

Method used

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  • Lens manufacturing system and method
  • Lens manufacturing system and method
  • Lens manufacturing system and method

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Experimental program
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Embodiment Construction

[0043] figure 1 It is a schematic diagram of an embodiment of the present invention, which is used to illustrate the glue injection device 11 of the mirror manufacturing system 1 . refer to figure 1 As shown, the mirror manufacturing system 1 includes a glue injection device 11 . The glue injecting device 11 is used to provide the lens material 10 for forming the lens. The glue injection device 11 includes a glue injection head 111 , wherein the lens material 10 is pushed out from the glue injection head 111 . The glue injection head 111 can be tilted. In one embodiment, the inclination angle θ of the injection head 111 relative to the vertical axis 2 1 is between 27 and 47 degrees. Preferably, the inclination angle θ of the injection head 111 relative to the vertical axis 2 1 It's 35 degrees.

[0044] In one embodiment, the glue injection device 11 includes a cylinder 112 , wherein the glue injection head 111 is fixed on the cylinder 112 . During glue injection, the l...

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Abstract

The invention discloses a lens manufacturing system and method. The lens manufacturing system comprises a colloid injection device. The colloid injection device comprises a colloid injection head and the colloid injection head is used for providing a lens material for lens formation. The colloid injection head of the colloid injection device can form an inclined angle with a vertical axle. The lens material is not directly fed into the main mold from top to bottom but is injected into the main mold obliquely or along the inner surface outline of the main mold so that component velocity of the lens material perpendicular to the inner surface of the main mold is reduced, the lens material impact to the main mold is reduced, bubbles formed in the lens material are reduced and a lens yield is improved.

Description

technical field [0001] The invention relates to a mirror manufacturing system and a preparation method of the mirror. Background technique [0002] During the manufacture of contact lenses using the casting process, a quantity of polymerizable lens material is injected into a female mold half. Next, the male mold half and the female mold are closed to form a closed molding cavity. The lens material polymerizes in the mold cavity to form an unhydrated lens. Afterwards, the mold is opened, the lens is removed, and subsequent processing is carried out. [0003] Lenses are formed by injecting lens material into a master mold, and usually the lens material is injected into the master mold using a dispensing device. Existing glue injection equipment injects the lens material into the master mold vertically from top to bottom. However, this glue injection method is likely to generate bubbles in the lens material injected into the master mold, and these bubbles may form bubble d...

Claims

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Application Information

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IPC IPC(8): B29C45/18B29L11/00
Inventor 陈泷溎锺欣翰
Owner GALLANT PRECISION MACHINING CO LTD