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Technology Stocks : Research Frontiers (REFR) -- Ignore unavailable to you. Want to Upgrade?

To: N. Dixon who wrote (1440)	3/14/2000 1:11:00 PM
From: Debt Free	Respond to of 50574

Great Article

To: N. Dixon who wrote (1440)	3/21/2000 11:50:00 AM
From: Ronald Kronemann	Read Replies (1) \| Respond to of 50574

This might pose a threat to spd (not in the short term but maybe in a few years time) Regards Ronald Programmable sunglasses? If they can be made cheaply, this might be better than LCD shutters for multi-use portable displays. <Clip below> napa.ufl.edu Holloway and the other researchers used chip-making techniques and materials to design and build a device that contains thousands of tiny apertures -- apertures that can range in size from about a millimeter to 50 micrometers (there are 25,400 micrometers in an inch). Tests of prototypes showed the apertures can open and close as many as 10,000 times in one second. When deployed, say, on a satellite camera, a tiny sensor would detect the laser, shut down the apertures and protect the camera. Although prototype eyelids up to now have been mounted on an opaque silicon base, prototypes under development are mounted on glass, ideal for optical sensors. The device has several potential consumer applications, Holloway said. For example, sunglasses now on the market that adjust to changing light conditions use a photochromic process that may require several minutes to complete the adjustment. Sunglasses with the eyelid technology, by contrast, would adjust instantly through opening the appropriate number of apertures for the light hitting the glasses, he said. The sunglasses, which could be powered by a small battery encased in the frame, also could handle more extreme situations, such as eclipses, he said. "If I wanted to watch the solar eclipse, for example, I could put on my smart glasses, and they would automatically block out the sun and I would only see the corona," he said.