Compact multispectral wide angle refractive optical system

摘要

A multispectral wide angle refractive optical device for focusing light from a first waveband and a non-overlapping second waveband is presented. A first element formed of a first material receives incident radiation. A second element formed of diamond material receives radiation from the egress end of the first element. A third element formed of a third material receives radiation from the egress end of the second element. An optical train through the three elements onto a common focal plane is shared by the first waveband and a second waveband.

主权项

1. A refractive multispectral wide angle refractive optical device for focusing light from a first waveband having a minimum wavelength λmin, and a non-overlapping second waveband having a maximum wavelength λmax, comprising:
a first element formed of a first material comprising an ingress surface, configured to receive incident radiation, and an egress surface; a second element formed of a second material comprising an egress surface and an ingress surface configured to receive radiation from the egress surface of the first element; a third element formed of a third material comprising an egress surface and an ingress surface configured to receive radiation from the egress surface of the second element; a shared optical train for the first waveband and a second waveband; and a common focal plane for the first waveband and a second waveband, wherein the second material comprises diamond, and the first material, second material, and third material are different materials.