Molding die for optical element, and method for manufacturing optical element
A technology for optical components and forming molds, applied in optical components, optical components, optics, etc., to solve problems such as gaps, forming reproducibility, hidden stability hazards, and complex height adjustment.
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no. 1 approach 〕
[0031] Hereinafter, a molding die for an optical element and a method of manufacturing an optical element according to the present invention will be described with reference to the drawings.
[0032] Such as figure 1 As shown, the molding apparatus 100 includes: an injection molding machine 10 as a main body that performs injection molding to produce a molded product MP;
[0033] The injection molding machine 10 is a horizontal molding machine and includes a molding die 40 , a fixed platen 11 , a movable platen 12 , an opening and closing drive device 15 , and an injection device 16 . Incidentally, a mold temperature controller 47 and the like are also provided in the injection molding machine 10 . The injection molding machine 10 can be molded by sandwiching a first mold 41 and a second mold 42 constituting a molding die 40 between the fixed platen 11 and the movable platen 12 and clamping the two molds 41 , 42 .
[0034] The inner side 11a of the fixed platen 11 fixed to t...
no. 2 approach 〕
[0071] Hereinafter, a molding die and the like for an optical element according to the second embodiment will be described. The optical element molding die and the like of the second embodiment are obtained by deforming the optical element molding die and the like of the first embodiment, and matters not particularly described are the same as the optical element molding die and the like of the first embodiment. In addition, since the structure of the 1st mold 41 and the 2nd mold 42 are substantially the same, it demonstrates mainly about the 1st mold 41. FIG.
[0072] Such as Figure 7A As shown, the insert 60a of the first mold 41 has a core 66 as a mold main body, a cylindrical peripheral portion 67 surrounding the core 66, a plate-shaped core spacer 68 disposed on the root side of the core 66, and The rotating base 69 supporting the peripheral part 67 and the core spacer 68 serves as a divided part. Here, the core portion 66, the peripheral portion 67, and the core spacer...
no. 3 approach 〕
[0081] Hereinafter, a molding die and the like for an optical element according to a third embodiment will be described. The optical element molding die and the like of the third embodiment are obtained by deforming the optical element molding die and the like of the first embodiment, and matters not particularly described are the same as the optical element molding die and the like of the first embodiment. In addition, since the structure of the 1st mold 41 and the 2nd mold 42 are substantially the same, it demonstrates mainly about the 1st mold 41. FIG.
[0082] Such as Figure 8A and 8B, in this embodiment, the position adjustment spacer 200 is installed on the two adjacent side surfaces 60m opposite to the inner wall of the recess 63a or the side surface 63c of the insert 60a, and the position adjustment spacer 200 is opposite to the insert 60a. The position relative to the master 60b is finely adjusted in the direction along the parting surface PS1. Two screw holes 94 a...
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