OPTICAL ELEMENT FORMING METHOD AND OPTICAL ELEMENT FORMING MOLD

WIPO Patent Application WO/2019/188254

A1

In this optical element forming method, neck parts respectively provided on an upper mold and a lower mold are inserted into holes provided in a side mold, and then an optical element is formed from a forming material using an upper forming surface, a lower forming surface, and a side forming surface. The optical element forming method comprises: an oxygen discharge step of placing the end of the neck part of the lower mold below the opening edge of the hole of the side mold, and discharging oxygen in the mold through a space formed between the opening edge of the hole of the side mold and the forming material disposed on the lower forming surface; a heating step of heating the forming material; and a press-forming step of press-forming the forming material by bringing the upper mold and the side mold, and the lower mold closer to each other.

JP5079452	Manufacturing method of glass material with uneven pattern on the surface
JP2009280410	MOLD FOR FORMING GLASS SUBSTRATE, METHOD OF MANUFACTURING GLASS SUBSTRATE, METHOD OF MANUFACTURING GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, METHOD OF MANUFACTURING INFORMATION RECORDING MEDIUM, GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING MEDIUM
WO/2006/132387	PROCESS FOR PRODUCING OPTICAL GLASS

KIKUCHI KENJI (JP)

PCT/JP2019/010011

October 03, 2019

March 12, 2019

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OLYMPUS CORP (JP)

C03B11/00; C03B11/08; G02B3/00

JP2006273649A	2006-10-12
JP2011132096A	2011-07-07
JP2016160174A	2016-09-05
JP2010143773A	2010-07-01
JP2002326824A	2002-11-12
JP2007022852A	2007-02-01
JPH0848531A	1996-02-20

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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