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Moulding forming device,its head and method for making optical element

A technology of compression molding and optical components, applied in the direction of manufacturing tools, glass pressing, glass manufacturing equipment, etc., can solve the problems of inability to improve eccentricity precision technology, etc., and achieve high eccentricity precision, high forming difficulty, and high shape precision Effect

Inactive Publication Date: 2006-09-20
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it cannot be used as a technique to improve the accuracy of eccentricity when pressing in multiple stages

Method used

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  • Moulding forming device,its head and method for making optical element
  • Moulding forming device,its head and method for making optical element
  • Moulding forming device,its head and method for making optical element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Embodiments of the present invention will be described below with reference to the drawings.

[0044] (Compression Forming Device)

[0045] figure 1 It is a schematic plan view showing the whole of the rotary transfer type press forming apparatus to which the present invention is applied, figure 2 is a schematic cross-sectional view showing the transferred press molding die. image 3 yes figure 1 A schematic cross-sectional view of the compression chamber in the compression molding device.

[0046] The press molding apparatus P of this embodiment is used to sequentially transfer the press molding molds containing the molded material (glass preform, etc.) body (glass optics, etc.).

[0047] Such as figure 1 As shown, the press forming device P has a circular plan shape. The compression molding device P includes a removal / insertion chamber P1 and a plurality of processing chambers P2, P3, P4, P5, P6, P7, P8 arranged in the circumferential direction, usually, the s...

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PUM

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Abstract

The invention discloses to a pressing molder, relative production of its pressure head and optical element. Wherein, when pressing the molding mould, first, using the first pressure head (11) to compress the main body mould (4) on the support surface (23) (reference surface) of flange (22) of lower mould (2), to process the positioning between the main body mould (4) and the lower mould (2); with said positioning state, using the second pressure head (12) to support the upper mould (3) to compress and mold the molding blank (w); when the molding blank (w) is pressed molded, non-incline fixing the main body mould (4) and lower mould (2) and fixing the first pressure head (11), therefore, the second pressure head (12) that guided by the first pressure head (11) can non-incline compress upper mould (3), and the relative incline between upper and lower moulds (3, 2) can be restrained; the invention can be used to produce the optical element with high shape accuracy.

Description

technical field [0001] The present invention relates to a manufacturing method of an optical element in which an optical element is manufactured without grinding / grinding the surface to be formed by press-molding a shaped material such as glass with a press-molding mold that performs precision machining, and for this purpose The mold press (Mold Press) forming device used. More specifically, it relates to improvement of a pressing mechanism (press head) for pressurizing a press molding die in a press molding apparatus. Background technique [0002] A method of manufacturing optical elements such as high-precision aspheric lenses by press molding is known. According to this manufacturing method, since the conventionally complicated aspheric surface grinding process can be omitted, optical elements of this shape can be manufactured in large quantities and at low cost. [0003] In recent years, while high-pixel imaging optical systems and high NA (Numerical Aperture) pickup l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/08
CPCC03B11/08C03B11/02C03B2215/60C03B2215/72Y02P40/57
Inventor 山中贤治广田慎一郎
Owner HOYA CORP
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