An optical system and method comprising acquiring radiation in a plurality of spectral bands, each acquired by a discrete collector, receiving the acquired radiation in one or more of the spectral bands with one or more afocal zoom optics, each receiving radiation from a different collector, and aligning each point of fields of view of the collectors to a fraction of a pixel.

 
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< Projection lens system and projector

< Image pick-up device and adjustment mechanism

> Thermally tuned filter having a pre-stressed membrane

> Optical prism, display element support and optical assembly using the same

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