| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical glass element press forming mold in which a high quality optical glass is formed in a short cycle, the energy necessary for heating is reduced, heating and cooling are efficiently carried out for a short time using an optical heating process and excellent productivity and energy efficiency are exhibited and an optical glass element press forming method. SOLUTION: The optical glass element press forming mold includes an upper mold, a lower mold and a cylindrical drum mold in which the upper mold and the lower mold face each other and are moved to slide. Each of the upper mold and the lower mold comprises a forming part for forming the optical glass element and a supporting part supporting the forming part. At least one of the forming part of the upper mold and that of the lower mold is constituted f a glass member having≤70% inner transmittance when a 1 mm thick glass plate is irradiated with light of 200-3,000 nm wavelength. COPYRIGHT: (C)2006,JPO&NCIPI
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