Variable focal distance image reader

Details Variable focal distance image reader Variable focal distance image reader

G - Physics

03

B

G03B 3/00 (2006.01) G02B 7/02 (2006.01) G02B 7/04 (2006.01) G03B 13/32 (2006.01)

Patent

CA 2523845

A camera module, having a objective lens that can be displacd to set the focal distance for a number of predetermined applications, is described. The objective lens is displaced by an electro-mechanical system. An operator selects a particular focal distance corresponding to a particular scanning application through a control interface. A current source supplies a current proportional to the selected focal distance to a solenoid. The solenoid plunger is connected to a lever that is coupled to the objective lens to move it to the selected focal distance within the camera module.

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