Raytheon Company

Douglas J Hartnett

Mark Noethen

Marco A Avila

Kirk A Miller

Richard L Scott

Lyale F Marr

Randy W White

Aspects and embodiments are generally directed to compact anamorphic refractive objective lens assemblies. In one example, a refractive objective lens assembly includes a passively athermal anamorphic lens group including at least a first cylindrical lens having a surface optically powered in a first dimension, the first anamorphic lens group positioned to receive thermal infrared radiation, a focus cell positioned to receive the radiation from the anamorphic lens group, the focus cell including a first group of lenses each having a rotationally symmetric surface optically powered in the first dimension and a second dimension orthogonal to the first dimension, a relay lens group positioned receive the radiation from the focus cell, the relay lens group including a second group of lenses each having a rotationally symmetric surface optically powered in both the first and second dimensions, and a dewar assembly including a cold stop and an optical detector.

Anamorphic refractive objective lens assembly

A rolling beam splitter optical switching mechanism for combination and selection of detector illumination includes a housing and an immersed cube beam splitter supported by the housing. The beam splitter is configured to direct electromagnetic radiation in a first direction and a second direction. The switching mechanism further includes a drive assembly configured to rotate the housing and the beam splitter to change a direction of electromagnetic radiation directed by the beam splitter in the second direction.

Rolling beam splitter optical switching mechanism for combination and selection of detector illumination

An optical mount and mounting system including an optical device, a housing, and a plurality of optical mounts that couple the optical device to the optical housing. Each mount includes a sleeve attached to the optical device and each sleeve includes a bore. Studs are attached to the optical housing and each stud includes an outer bonding surface extending through the bore of each sleeve. Once the optical device is aligned properly, a curable material is deposited into the sleeve and cured between the sleeve and the stud, such that the curable material couples the sleeve and the stud to each other to provide a robust structural joint that minimizes self-induced stresses into the optic. A series of annular conical portions and corresponding surfaces are provided to retain registration of the optical device against dynamic shearing and bending forces. A method of aligning and mounting an optical device is provided.

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The Colony, TX, United States of America

Douglas J Hartnett