Optical module

Details Optical module Optical module

2008-04-29

2008-04-29

Hasan, M. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S700000

Reexamination Certificate

active

07365915

ABSTRACT:
An exemplary optical module (100) includes a lens barrel (20), a lens group (40), a spacer (60), and a filter (80). The lens barrel has an inner wall (201), and at least two securing grooves (206) formed on the inner wall. The lens group and the spacer are disposed in the lens barrel. The spacer includes an annular base (601) and a predetermined amount of projecting blocks (603) formed on a same side of the base (601). At least two first bending portions (604) are formed on the blocks bending toward a center of the base, and at least two second bending portions (606) are formed on the blocks bending outwards from a center of the base. The second bending portions are configured to be secured in the securing grooves of the lens barrel. The filter is secured on the spacer by the first bending portions.

REFERENCES:
patent: 7262925 (2007-08-01), Huang
patent: 2004/0135916 (2004-07-01), Makii

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