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Default Collimate/Focus IR ??

Frustrated with IR repeaters that use RF links (like Terk)... ambient
RF noise too high for reliable operation :-(

It occurred to me that since I have a central "Great Room"
architecture, that makes for a wide open optical shot across great
expanses... as much as 60' per link... so a purely optical repeater
should work nicely... pick-up the IR from a remote and blast an LED
with an Ampere ;-)

Ceiling heights of 12' to 16' and door openings of at least 8' means I
don't have to contend with people getting in the way.

So now I need pointers on how to collimate/focus an IR beam so it
doesn't spread out too much at 60' range.

Ideas?

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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