Patent ID: 7147162

Claim:
An optical scanning device of the type having apparatus for emitting light and for receiving light along an optical axis and through a forward window placed in proximity to a target and which is adapted for contact with a planar surface, said optical scanning device comprising: a handle to be grasped by an operator for selectively positioning the scanning device near the target; a head connected at one end of said handle and containing the light emitting and receiving apparatus, said head having a front face comprising spaced apart first and second elongated surfaces, each being shaped to be slightly convex outwardly, said scanning device being configured so that said first and second spaced apart elongated surfaces can contact said planar surface simultaneously, said first and second spaced apart elongated surfaces each extending in a direction generally parallel to a plane extending normal to said optical axis but angled rearward from said plane such that lower portions of said first and second elongated surfaces extend more forwardly than upper portions of said first and second surfaces; and wherein said each elongated surface extends downwardly from a front edge of a bottom wall of a body extending there between.