> Just wondering how the different lenses for laser pens work, the ones > that change the point to different shapes (a spaceship, arrow, etc.) the laser pointers that project different shapes generally do so with the incorporation of a diffraction grating. steve http://wearcomp.org http://weartel.com http://hi.eecg.toronto.edu/mann.html http://wearcam.org/wearpubs.html -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org
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