Re: Optical Sensor (different from the 2-d sensor)


On Mon, 7 Jul 2008 17:40:53 -0700 (PDT), whit3rd <whit3rd@xxxxxxxxx>
wrote:

On Jul 7, 11:12 am, Howhurley <howhurl...@xxxxxxxxxxxxx> wrote:
Hi again.  I am looking for an optical sensor, probably LED based,
maybe laser diode, that can be mounted on a thin PCB.  It needs to be
fairly small.  I am designing a small retroreflective system from
inside a slot machined into a molding with a piece of reflective tape
approx 3 ft away.

Usually, with that kind of distance, one uses a modulated
light source and tuned detector: 40 kHz infrared
diodes and integrated circuit receivers for this purpose
are the mainstays of TV remote controls...

Do you have any links to schematics? I'm mulling over making my own
around-the-house repeater system. Though I have a number of ideas,
starting point could be helpful.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
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| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

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