Patent ID: 11868049
Assignee: INNOVATIONS IN OPTICS, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A telecentric illuminator comprising:
a tapered optic having an input aperture to receive light from a light emitting diode source and having an exit aperture;
a field stop disposed at the exit aperture of the tapered optic;
a lens group in optical communication with the exit aperture of the tapered optic, the lens group comprising a plurality of lenses and an apodized aperture stop; and
a Fresnel lens in optical communication with the lens group,
wherein the tapered optic, the lens group and the Fresnel lens are arranged on an optical axis, the Fresnel lens is positioned on the optical axis to generate a telecentric image of the field stop at an illumination plane.