Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1995-03-03
1997-02-11
Czaja, Donald E.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65104, 65 85, 264 11, 264 132, C03B 2300, C03B 1100, B29D 1100
Patent
active
056016271
ABSTRACT:
There is disclosed a method for molding an optical element, by preparing an upper mold member and a lower mold member for press molding a glass material, heating the mold members together or individually to a predetermined temperature, deforming the glass material according to molding faces of the mold members by a pressing force applied to the mold members, then transferring the mold members and the molded glass to a cooling step and subsequently taking out the molded glass by opening the mold members, thereby transferring the optically functional faces corresponding to the molding faces of the mold members, to the glass material. The cooling step includes a step of opening the mold members to separate the glass material from the molding faces of the mold members to release the adhesion state upon press molding between the molding faces and the glass material, and a step of closing the mold members again so as to maintain the molded state of the glass material and cooling the molded glass in this state further to a taking-out temperature thereof.
REFERENCES:
patent: 3833347 (1974-09-01), Angle et al.
patent: 4629489 (1986-12-01), Hirota et al.
patent: 4778505 (1988-10-01), Hirota et al.
patent: 4915720 (1990-04-01), Hirota et al.
patent: 4969944 (1990-11-01), Marechal
patent: 5032160 (1991-07-01), Murata et al.
patent: 5087279 (1992-02-01), Monji et al.
patent: 5173100 (1992-12-01), Shigyo et al.
patent: 5228894 (1993-07-01), Sato et al.
Canon Kabushiki Kaisha
Czaja Donald E.
Griffin Steven P.
LandOfFree
Method for molding optical element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for molding optical element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding optical element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-338603