| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection mold for manufacturing a lens, which can secure the concentricity of the lens and can manufacture the lens having high accuracy and eliminated in eccentric phenomenon.SOLUTION: An injection mold 1 for manufacturing a lens is constituted of: a fixed core 100 having a lens transfer face 101; a fixed mold plate 10 having a core attachment part 110 for containing the fixed core 100 and a fixed block 140; a movable core 200 having a lens transfer face 201 and one or more bolt holes 250; a movable mold plate 20 having a core attachment part 210 capable of displaceably containing the movable core 200, bolts 220 for attaching the movable core 200 to the core attachment part 210, and a sliding block 240 which slides by contacting with the fixed block 140; and bushes 500 arranged at external peripheries of the bolts 220 and inserted into the bolt holes 250. |
