JPH0389128U

JPH0389128U -

Info

Publication number: JPH0389128U
Application number: JP15293689U
Authority: JP
Priority date: 1989-12-27
Filing date: 1989-12-27
Publication date: 1991-09-11

Description

[Brief explanation of drawings]

第１図ａ〜第２図ｂは本考案に係る胴型キヤリ
アおよび光学ガラス素材の第１実施例を示し、第
１図ａは胴型キヤリアの平面図、第１図ｂは同断
面図、第２図ａは胴型キヤリアに光学ガラス素材
を載置した平面図、第２図ｂは同断面図、第３図
ａおよびｂは同第２実施例を示し、第３図ａは平
面図、第３図ｂは断面図、第４図ａ〜第５図ｂは
同第３実施例を示し、第４図ａは光学ガラス素材
の平面図、第４図ｂは同側面図、第５図ａは胴型
キヤリアに光学ガラス素材を載置した平面図、第
５図ｂは同断面図、第６図は従来例を示す断面図
である。１，７，１２……胴型キヤリア、２……内周面
、３……段部、４，５，８，９……突起、６，１
０……光学ガラス素材、１１……外周面。 1a to 2b show a first embodiment of a barrel-shaped carrier and an optical glass material according to the present invention, FIG. 1a is a plan view of the barrel-shaped carrier, FIG. 1b is a sectional view thereof, Figure 2a is a plan view of an optical glass material placed on a barrel-shaped carrier, Figure 2b is a sectional view of the same, Figures 3a and b show the second embodiment, and Figure 3a is a plan view. , FIG. 3b is a sectional view, FIGS. 4a to 5b show the third embodiment, FIG. 4a is a plan view of the optical glass material, FIG. 4b is a side view, and FIG. Figure a is a plan view of an optical glass material placed on a barrel-shaped carrier, Figure 5b is a cross-sectional view of the same, and Figure 6 is a cross-sectional view of a conventional example. 1, 7, 12... Trunk type carrier, 2... Inner peripheral surface, 3... Step portion, 4, 5, 8, 9... Protrusion, 6, 1
0... Optical glass material, 11... Outer peripheral surface.

Claims

[Scope of Claim for Utility Model Registration] (1) In an optical element molding device that heats and softens an optical glass material and molds an optical element using a press mold, an optical glass of a barrel-shaped carrier that places and conveys the optical glass material. A trunk-shaped carrier characterized by having a plurality of protrusions formed on a material holding contact surface. (2) An optical glass material used for press molding, characterized in that the outer peripheral surface of the optical glass material is formed into a sawtooth shape.