Polygonal mirror, and manufacturing process and mold thereof

Details Polygonal mirror, and manufacturing process and mold thereof Polygonal mirror, and manufacturing process and mold thereof

1993-10-22

1996-12-03

Phan, James

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359216, 359900, 264 19, G02B 508

Patent

active

055814166

ABSTRACT:
A resin polygonal mirror having reflective facets each of which is made by injecting resin from a plurality of pin point gates or a single film gate. A core of the polygonal mirror is made of a different resin from the resin which is the material of the reflective facets. A mold of the polygonal mirror has side segments which are divided by parting lines extended from corners of the reflective facets.

REFERENCES:
patent: 4101365 (1978-07-01), Fisii
patent: 4902085 (1990-02-01), Murakoshi et al.

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