Method of molding a lens array

Details Method of molding a lens array Method of molding a lens array

1989-06-06

1991-03-12

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 15, 264 19, 2643288, B29D 1100

Patent

active

049991426

ABSTRACT:
A lens array of rod lenses (16), to be used for reading image data in document copier, facsimile, printer, white board scanner, and so on, is made by injection molding of a transparent resin in an already made plastic lens-holding frame (3) having an array of through-holes (2) and gates (1) leading to respective through-holes (2) for injecting melted transparent resin therethrough, both ends of the through-holes having cores (6) and (7) with concave faces.

REFERENCES:
patent: 3956587 (1976-05-01), Nelson
patent: 4344901 (1982-08-01), Keathley
patent: 4592886 (1986-06-01), Mannherz
patent: 4603023 (1986-07-01), Mack et al.

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