Optical unit

Details Optical unit Optical unit

2008-04-22

2008-04-22

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With support

C359S813000, C359S815000, C359S819000, C359S822000, C359S823000

Reexamination Certificate

active

11101675

ABSTRACT:
To overcoming any inconvenience in an optical unit, caused by a protrusion (burr) formed on a plastic lens when the plastic lens is molded, an optical unit is provided and has an injection molded plastic lens and a lens barrel. The injection molded plastic lens is fitted in a lens housing groove of the lens barrel so that a protrusion on one side of a flange of the injection molded plastic lens is located outside the lens housing groove.

REFERENCES:
patent: 4920460 (1990-04-01), Mori
patent: 5177641 (1993-01-01), Kobayashi et al.
patent: 5781351 (1998-07-01), Murakami
patent: 5798876 (1998-08-01), Nagano
patent: 2003/0095344 (2003-05-01), Ito et al.
patent: 1148713 (1997-04-01), None
patent: 2004-004566 (2003-02-01), None
patent: 2004-0045666 (2003-02-01), None
patent: 2004-4566 (2004-01-01), None

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