Patent ID: 8624985

Claim:
A hybrid imaging lens assembly for capturing return light from a target over a field of view of an array of image sensors of a solid-state imager, and for projecting the captured return light onto the array during electro-optical reading of the target, the assembly comprising: a plastic lens group having substantially no optical power of the imaging lens assembly for optical aberration compensation; a glass lens group spaced away from the plastic lens group along an optical axis, the glass lens group having substantially all the optical power of the imaging lens assembly for thermal stability; an aperture stop between the lens groups and having an aperture through which the optical axis extends; and a holder for holding the lens groups and the aperture stop in spaced relation along the optical axis relative to the array wherein a thermal variation of a focal length of the glass lens group, over a temperature range of from about −30 degrees Centigrade to about +70 degrees Centigrade is less than 0.2% of the focal length.