Manufacturing method of compound aspheric lens

Details Manufacturing method of compound aspheric lens Manufacturing method of compound aspheric lens

2005-03-29

2005-03-29

Vargot, Mathieu D. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

C264S001700, C264S085000, C425S808000

Reexamination Certificate

active

06872334

ABSTRACT:
A method including: dropping the ultraviolet-curable resin fluid onto the aspheric face of a metallic mold set horizontally, the aspheric face having a desired concave face; bringing a convex lens close to the metallic mold and stopping the movement of the lens just before it comes into contact with the ultraviolet-curable resin fluid; inclining the metallic mold and the lens together to cause the ultraviolet-curable resin fluid to flux; after bringing the convex face of the lens into point contact with this fluxed and swelled ultraviolet-curable resin fluid, moving the lens to a prescribed position relative to the metallic mold to place the ultraviolet-curable resin fluid between the lens and the metallic mold; returning the lens and the metallic mold together from the inclined state to the horizontal state, thereby irradiating the ultraviolet-curable resin fluid with ultraviolet rays to cure the resin fluid and form a molded resin layer.

REFERENCES:
patent: 4432832 (1984-02-01), Fantone
patent: 4623496 (1986-11-01), Verhoeven et al.
patent: 4756972 (1988-07-01), Kloosterboer et al.
patent: 4957663 (1990-09-01), Zwiers et al.
patent: 5643504 (1997-07-01), Chiba
patent: 3191447 (1994-05-01), None

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