HAND HELD OPTICAL READING DEVICE

摘要

HAND HELD OPTICAL READING DEVICE A molded housing is formed by two opposing mating sections and includes a forward head portion projecting from a handle portion. The housing sections confine therebetween a lens barrel and a light source which have corresponding inclined axes converging toward the bottom surface of a generally V-shaped tip member projecting downwardly from the forward end of the housing. The housing sections also confine therebetween a printed circuit board forming part of an electronic amplifier for a photosensing unit supported within the lens barrel. The lens barrel and light source cooperate with the tip member so that tilting of the housing within limits does not effect accurate reading of a code during scanning. The housing is lined with a layer of metal to shield the amplifier from external electrical interference, and the lens barrel casing may be molded as an integral part of the housing sections.