Apparatus for manufacturing glass molding

A glass forming and manufacturing device technology, applied in the field of glass forming body manufacturing devices, can solve the problems of uneven shrinkage, difficulty and the like

Inactive Publication Date: 2012-04-04
KONICA MINOLTA OPTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the cooling rate of the molten glass during the molding process is different between the upper surface and the lower surface of the molten glass or between the central part

Method used

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  • Apparatus for manufacturing glass molding
  • Apparatus for manufacturing glass molding
  • Apparatus for manufacturing glass molding

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Embodiment Construction

[0041] Hereinafter, embodiments of the glass molded body manufacturing apparatus of the present invention will be described with reference to the drawings. Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to this embodiment.

[0042] First refer to figure 1 , the schematic structure of the manufacturing apparatus of the glass molded body of this invention is demonstrated. figure 1 It is a schematic cross-sectional schematic diagram of the schematic structure of the glass molded body manufacturing apparatus 1. figure 1 , the left figure shows the state in the molten glass supply process, and the right figure shows the state in the pressurization process.

[0043] The glass molded body manufacturing apparatus 1 is equipped with the melting tank 70, the upper mold|type 10, the lower mold|type 20, the pressurization part 50, etc. are equipped.

[0044] The lower mold 20 is movable between a position P...

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PUM

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Abstract

Provided is an apparatus for manufacturing a glass molding which can manufacture a glass molding having a high precision optical surface. An apparatus for manufacturing a glass molding has a lower die which receives molten glass, and an upper die which pressure molds the molten glass supplied to the lower die in conjunction therewith, wherein the upper die has a first molding surface which transfers the optical surface, a second flat molding surface provided around the periphery of the first molding surface, and a third molding surface provided around the periphery of the second molding surface and tilting relative to the central axis of the upper die passing through the center of the first molding surface to spread in the direction of the lower die.

Description

technical field [0001] The present invention relates to a glass forming body manufacturing device, in particular to a glass forming body manufacturing device which pressurizes molten glass with a molding die to obtain a glass forming body. Background technique [0002] Glass optical components are used in a wide range of applications such as digital camera lenses, optical pickup lenses such as DVDs, mobile phone camera lenses, optical communication coupling lenses, and various mirrors. Such glass optical elements are currently mostly produced by compression molding in which a glass material is pressurized with a molding die. In particular, optical elements with aspheric optical surfaces are not easily formed by grinding and polishing, so they are generally produced by compression molding using a molding die. Among them, the direct press method, in which molten glass is directly pressure-molded with a molding die to obtain glass optical elements, is attracting attention beca...

Claims

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Application Information

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IPC IPC(8): C03B11/08G02B3/00
CPCC03B11/08C03B2215/61C03B2215/49
Inventor 中川涉
Owner KONICA MINOLTA OPTO
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