Moulding apparatus and method for producing optical component

A technology of compression molding and optical components, which is applied in the field of compression molding equipment and forming material supply, which can solve the problems of non-circular shape, difficulty in correcting the position of forming materials, and biting of forming materials into side molds, etc., and achieve the effect of high efficiency and surface accuracy

Inactive Publication Date: 2006-05-17
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, if the shape of the molding material is not a perfect circle, and there is a difference in length and diameter within a certain range, in the molding device of Patent Document 2, the molding material may bite into the side mold.
[0021] In addition, it is also considered to increase the size of the side mold, but in this case, not only will it become the cause of the offset of the molding material, but it will also be difficult to correct the position of the offset molding material.

Method used

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  • Moulding apparatus and method for producing optical component
  • Moulding apparatus and method for producing optical component
  • Moulding apparatus and method for producing optical component

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no. 1 approach

[0074] First, regarding the compression molding apparatus (hereinafter referred to as molding apparatus) according to the first embodiment of the present invention, refer to figure 1 Be explained.

[0075] figure 1 It is a sectional view of main parts of the press molding apparatus according to the first embodiment of the present invention.

[0076] Also, although not shown, the molding device of this embodiment includes a heating device and a temperature adjustment mechanism necessary for heating a molding device and / or a molding material, a load applying shaft mechanism having a load adjustment mechanism necessary for press molding, There is also a cooling device and a temperature adjustment mechanism necessary for the cooling of the forming device and / or the formed body.

[0077] In addition, during pressing, the upper end surface of the upper die and the lower end face of the lower die contact the press forming shaft of the load applying shaft mechanism to apply a load...

no. 2 approach

[0112] Next, regarding the molding device and the method of manufacturing an optical element using the molding device according to the second embodiment of the present invention, refer to Figure 5 and Image 6 Be explained. Note that the same reference numerals as in the first embodiment are assigned to the same configuration as the first embodiment, and the description of the first embodiment is continued.

[0113] Figure 5 is a sectional view of main parts of a press molding apparatus according to a second embodiment of the present invention, Image 6 It is an explanatory drawing showing the manufacturing process of the optical element by the shaping|molding apparatus of 2nd Embodiment.

[0114]The molding device of the second embodiment is also composed of an upper mold 10, an upper side mold 20, a forced demoulding device 30, a lower mold 40, and a lower ring 51 as a supporting member. However, a lower side surrounding the lower ring 51 is also provided. Modulus 80. ...

no. 3 approach

[0124] Next, regarding the molding device according to the third embodiment of the present invention and the method of manufacturing an optical element using the molding device, refer to Figure 7 and Figure 8 Be explained.

[0125] Figure 7 is a sectional view of main parts of a compression molding apparatus according to a third embodiment of the present invention, Figure 8 It is an explanatory drawing showing the manufacturing process of the optical element by the shaping|molding apparatus of 3rd Embodiment.

[0126] Figure 8 The steps shown are the same as those representing the manufacturing steps performed by the manufacturing apparatus of the above-mentioned second embodiment. Image 6 Corresponding to each process. The forming device of the third embodiment has the same structure as that of the second embodiment. As the upper and lower dies 10, 40 move closer, the lower ring 51 retreats below the forming surface of the lower die. However, it is different from t...

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Abstract

A mold press forming apparatus and method for manufacturing potical element, the mold press forming apparatus having the lower mold (40) having the projecting surface in a forming surface and an upper mold (10) disposed oppositely above the lower mold (40) and press forming the forming stock (PF) arranged on the lower mold (40) in a heated and softened state, a lower ring (50) is provided around the forming surface (41) of the lower mold to support the peripheral part of the lower surface side of the forming stock (PF) and the peripheral edge part of the forming stock (PF) is made into a freeend by forming the outside of the peripheral edge part of the forming stock (PF) supported with the lower ring (50) as an open space. The invention supports a forming stock on a lower mold while providing a degree of freedom to the shape of the forming stock, a preforming method, a supplying method, a method for correcting the position of the forming stock, or the like when the forming stock is supplied onto the lower mold having a projecting surface.

Description

technical field [0001] The present invention relates to a molding device and a method for manufacturing optical elements by press-molding molding materials such as glass by using a molding die subjected to precise processing, and particularly relates to a method of supplying molding materials to a lower mold having a convex molding surface. A compression molding device and a method for manufacturing an optical element. Background technique [0002] There are known press-forming apparatuses and methods for manufacturing optical elements by press-molding forming materials such as glass using a forming die that performs precision machining, and manufacturing optical elements (for example, refer to Japanese Patent No. 3501580 (Patent Document 1), Japanese National Patent No. KOKAI Publication No. 9-286622 (Patent Document 2)), they are particularly effective for molding optical elements having aspherical surfaces. [0003] In the molding method described in Patent Document 1, a...

Claims

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Application Information

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IPC IPC(8): C03B11/06C03B11/08
CPCC03B11/08C03B2215/61C03B11/084C03B11/122C03B23/0307G02B3/00Y02P40/50Y02P40/57
Inventor 山中贤治佐藤浩一荒井和则邹学禄
Owner HOYA CORP
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