Glass manufacturing – Processes – Fusion bonding of glass to a formed part
Patent
1997-05-19
1999-11-30
Hoffmann, John
Glass manufacturing
Processes
Fusion bonding of glass to a formed part
65 48, 65122, 65145, C03B 1902
Patent
active
059921790
ABSTRACT:
A method of manufacturing an optical device having a profile of refractive indices along its optical axis. A desired volume of each of a plurality of types of optical material are dispensed into a mold of known plan area in the form of a frit or a melt and the mold is heated to cause the materials to melt and fuse together to define a contiguous body of optical material having a desired profile. As the optical materials melt, the different types of material separate out so that they are arranged with the most dense material closest to the bottom of the mold and the least dense material closest to the top of the mold. To enhance this effect, the optical materials are layered in the mold in decreasing order of density of the materials from the bottom to the top so that the layers of optical material with the greater densities are closer to the bottom of the mold than the layers of materials with lesser densities.
REFERENCES:
patent: 3726656 (1973-04-01), Reid
patent: 3899314 (1975-08-01), Siegmund
patent: 4023953 (1977-05-01), Megles
patent: 5626641 (1997-05-01), Yonemoto
Savard Michael E.
Xu Xiaojie
Hoffmann John
Light Path Technologies, Inc.
LandOfFree
Process for manufacturing grin lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for manufacturing grin lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing grin lenses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1658419