| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass forming device capable of easily and surely peeling a glass lens adhered to a forming die. SOLUTION: In the glass forming device, the glass forming device for forming a glass lens 3A from a glass raw material by the relative movement of an upper die 1 and a lower die 2 being a pair of dies has a mold-release ring 4 fitting and sticking to the upper die 1, and the mold-release ring 4 has a tapered surface 4a forming a peripheral part 3a of the glass raw material, and when the glass raw material reaches a moldable temperature, the ring relatively moves to the moving direction to the lower die 2 together with the upper die 1 and the glass lens 3A is press-molded from the glass raw material, thereafter, the molded glass lens 3A becomes below a transition temperature at a cooling process and the mold-release ring 4 is heat shrunk and since the tapered surface 4a finely moves to relatively inner diameter side to the upper die 1, the peripheral part 3a of the glass lens 3A is pressurized by the movement and the glass lens 3A adhered to the upper die 1 is peeled. COPYRIGHT: (C)2006,JPO&NCIPI
|
