Unlock instant, AI-driven research and patent intelligence for your innovation.

A glass optical lens die-casting mold structure

A technology of optical lenses and die-casting molds, applied in glass pressing, glass molding, glass manufacturing equipment, etc., can solve problems such as structural difficulties and inability to produce in large quantities, so as to ensure the accuracy of eccentricity and avoid instability of eccentricity Effect

Active Publication Date: 2017-05-03
UNION OPTECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the eccentricity accuracy between the two aspheric surfaces guaranteed by the industry is 3μ, which is very difficult for the existing die-casting mold structure, and it cannot be realized within 1.5μ (it is only accidental, and cannot be mass-produced)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A glass optical lens die-casting mold structure
  • A glass optical lens die-casting mold structure
  • A glass optical lens die-casting mold structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0026] Such as figure 1 As shown, a glass optical lens die-casting mold structure includes a lower mold core 1 , an upper mold core 2 and a mold case 3 , and a mold case hole 31 is provided on the mold case 3 . A lower die core 1 and an upper die core 2 are arranged in the die sleeve hole 31 . A tapered surface matching positioning structure 4 is provided on the matching end surface of the lower die core 1 and the upper die core 2 . The die sleeve hole 31 is processed from one side with an ultra-precision coordinate grinding machine. This processing technology can ensure that the cylindricity of the hole 31 is below 2μ, and the tolerance of the hole diameter can be guaranteed within ±1μ.

[0027] Because the lower mold core 1, the upper mold core 2 and the mold sleeve 3 will be opened and closed once in each die casting cycle, the lower mold core 1 and the upp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a glass aspheric optical lens pressure casting die structure, comprising a lower die kernel, an upper die kernel and a die sleeve, wherein a die sleeve hole is formed in the die sleeve, the lower die kernel and the upper die kernel are arranged in the die sleeve hole, and conical surface matched positioning structures are arranged on the matched end surfaces of the lower die kernel and the upper die kernel. The invention provides a die structure capable of improving the glass aspheric eccentric precision and ensuring good stability of an eccentric core in production.

Description

[0001] 【Technical field】 [0002] The invention relates to a glass optical lens die-casting mold structure, in particular to an optical lens die-casting mold structure for improving the eccentricity precision between two aspheric surfaces in a glass aspheric optical lens. [0003] 【Background technique】 [0004] The traditional die-casting mold structure for glass optical lenses is that the upper and lower mold cores are installed in the mold sleeve. Due to the errors in processing and matching, the eccentricity of the forming lens of the die-casting mold with this structure can only be guaranteed to be below 5μ. With the increase of the pixels and resolution of the surveillance lens, the eccentricity requirements for glass aspheric lenses are getting higher and higher. The eccentricity needs to be less than 3μ, and some lenses even require less than 1.5μ, so that the lens resolution can meet the required requirements. At present, the eccentricity accuracy between two aspheric ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03B11/08
Inventor 李映强邱盛平
Owner UNION OPTECH