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Optical glass element and manufacturing method thereof

  • US 20050247081A1
  • Filed: 09/14/2004
  • Published: 11/10/2005
  • Est. Priority Date: 05/10/2004
  • Status: Active Grant
First Claim
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1. A manufacturing method for an optical glass element in which molten glass is pressed between a lower mold and an upper mold, characterized in that a pressing process is carried out while maintaining a space between a border area of a molding face and a circumferential face located on the periphery thereof in the lower mold and the glass.

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