A Conversation for Photoelectric Effect
Miriam Started conversation Jun 5, 2000
Blatherskite the Mugwump - Bandwidth Bandit Posted Jun 6, 2000
Another side benefit: Phototransistors. Put a tiny light somewhere, and aim it at a photosensitive transistor. When light hits the transistor, it switches on and passes current... block the light, and the transistor is switched off. It's a handy way to detect events in electro-mechanical devices such as tape drives and printers. Photosensors have appeared in these devices since the 60's.
J'au-Ã¦mne Posted Jun 22, 2000
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