Method and apparatus for molding a synthetic resin lens for a li

Details Method and apparatus for molding a synthetic resin lens for a li Method and apparatus for molding a synthetic resin lens for a li

1982-06-29

1984-12-04

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

249 85, 249 96, 26427216, 26427217, 264275, 425121, 425808, B29D 1100

Patent

active

044863640

ABSTRACT:
A lens for a light emitting diode is formed by inserting a pair of lead frames into a mold having grooves for snugly receiving the outer free ends of the lead frames. The outer-most edge of the lead frame free ends engage the base of the mold, thereby precisely locating the light emitting element, mounted on the lead frames, relative to the top surface of the lens. The snug fit for the outer free ends assures that the outer free ends are free of the resin to facilitate alignment of the finished product in an electro-optical circuit and to provide improved radiation of heat to the atmosphere.

REFERENCES:
patent: 3484536 (1969-12-01), Jaeschke et al.
patent: 3805347 (1974-04-01), Collins et al.
patent: 3806766 (1974-04-01), Fanning
patent: 3855606 (1974-12-01), Schoberl
patent: 4152624 (1979-05-01), Knaebel
patent: 4188708 (1980-02-01), Frederiksen

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