Manufacturing and performance evaluation of a refractive real-time MWIR hyperspectral imager

Dombrowski, Mark; Willson, Paul D.; Hendrixson, Jeff; Hillenbrand, Eric; Wilcox, John

doi:10.1117/12.498142

Cited by 2 publications

(3 citation statements)

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“…In a previous publication [3], the opto-mechanical design of the lens holders was reviewed. These holders were designed with single blade flexures in a radial configuration (see Figure 4).…”

Section: Figure 4: Lens Mount and Results For Stress Induced In Test mentioning

confidence: 99%

“…The authors have reported on some of these challenges previously [3]. For summary purposes, the optical layout and wavefront error (WFE) of the system are shown in Figure 3.…”

Section: Figure 3: Optical Layout and Wavefront Errormentioning

confidence: 99%

“…The optical system can be separated into three (3) functional blocks: two infinite conjugate lenses and a prismatic disperser. A single infinite conjugate was tested both at room temperature and at cryogenic temperature [3] and the performance was measured as diffraction limited. The most recent tests include: test of infinite conjugate pair and line spread function tests.…”

Section: Room Temperature Optical Testingmentioning

confidence: 99%

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Progress towards a refractive real-time MWIR hyperspectral imager

et al. 2004

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Hyperspectral imaging in the 2-5 um band has held interest for applications in detection and discrimination of targets. Real time instrumentation is particularly powerful as a tool for characterization and field measurement. A compact, realtime, refractive MWIR hyperspectral imaging instrument has been designed and is undergoing integration and test. The system has been designed for cryogenic operation to improve signal to noise ratio, reduce background noise, and enable real-time hyperspectral video processing. Partial testing has been completed on cryogenic elements and "first light" 2-5 µm hyperspectral images have been collected at room temperature. REAL-TIME HYPERSPECTRAL IMAGINGReal-time imaging over broad bands in the electromagnetic spectrum from the ultraviolet (UV) through the infrared (IR) has been a staple in the areas of remote sensing, surveillance, target detection and tracking, search and homing devices, spectrally tailored coating development, nondestructive inspection, and noninvasive diagnosis. Improvements are being made in these techniques all the time, with increased resolution, higher sensitivity, and greater information throughput being the benefit. Instrumentation developed at Surface Optics has been used to distinguish objects based on their spectral signature in a number of applications. These include: revealing camouflaged military targets, friend-foe identification based on subtle coloring of personnel uniforms, and tracking of civilian vehicles based on spectral signature. [1,2] SYSTEM ARCHITECTUREThe goals for a MWIR Hyperspectral Imager (MWIR HSI) under development at Surface Optics include:• Operation over the MWIR spectrum: 2 -5 µm • Real time video data collection and processing: 15 hypercubes/sec • Relatively rich spectrum: 30 bands • Field deployable system

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Section: Figure 4: Lens Mount and Results For Stress Induced In Test mentioning

confidence: 99%

“…The authors have reported on some of these challenges previously [3]. For summary purposes, the optical layout and wavefront error (WFE) of the system are shown in Figure 3.…”

Section: Figure 3: Optical Layout and Wavefront Errormentioning

confidence: 99%

Section: Room Temperature Optical Testingmentioning

confidence: 99%

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