Method for manufacturing lens with lens barrel
AssigneeAlps Electric Co., Ltd.
InventorsMotohiko Ohtsuki, Kimihiro Kikuchi
Life of this patent
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Abstract
A method for manufacturing a lens with a lens barrel having a stopper by forming a uniform optical function coating on both lens surfaces. The method includes the steps of forming a first optical function coating on one side of a lens material, then inserting the lens material into a lens barrel so that the surface coated with the first optical function coating will face the long barrel side of the lens barrel, press molding lens surfaces by heating the lens material over its softening point, and finally forming a second optical function coating on the lens surface facing the short barrel side of the lens barrel.
Claims2
A method for manufacturing a lens with a lens barrel, comprising the steps of forming a first optical function coating on one side of a lens material, inserting said lens material into a lens barrel so that said one side coated with the first optical function coating will face a long lens barrel side, then press molding lens surfaces by heating said lens material over its softening point, and subsequently forming a second optical function coating on a lens surface facing a short lens barrel side.
A method for manufacturing a lens with a lens barrel, comprising the steps of forming a first optical function coating on one side of a lens material, inserting said lens material to a position of contact with a positioning stepped section in a lens barrel so that said one side coated with the first optical function coating will face a small-diameter opening of said lens barrel, thereafter press molding lens surfaces by heating said lens material over its softening point, and subsequently forming a second optical function coating on a lens surface facing a large-diameter opening of said lens barrel.
Dependencies are inferred from the claim text.