Patent ID: 6659350
Filing Date: 2003-12-09
Classification: G06K

Abstract:
Apparatus for adjusting the position of a line of light in barcode space that includesa support frame having a rear housing containing a solid state imager, an imaging lens supported in said frame for focusing an image of a target in barcode space along a linear optical axis, upon the solid state imager, an illumination means supported in said frame for projecting a line of light upon a target in barcode space, said illumination means including at least one cylindrical illumination lens element having a piano light entrance face that is mounted adjacent a light source, said light source being in coplanar alignment with said imaging lens and being perpendicular to said optical axis, and including a semi-circular light emitting face, a field stop aperture positioned between the light source and the illumination lens in relation to said light source so that the line of light can be selectively positioned in barcode space, said adjusting means further including an arcuate shape recess formed in said cylindrical lens that is arranged to ride in contact with at least one cam mounted in said frame.