An image display, includes a substrate; a light emitter formed on the substrate; and a photo-sensor formed on the substrate and optically coupled directly to the light emitter.

 
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< Objective, particularly a projection objective for use in semiconductor lithography

< Resonant coupling of optical signals for out-of-plane transmission

> Optically variable marking

> Optically-based method and apparatus for detecting and characterizing surface pits in a metal film during chemical mechanical polish
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