2013-07-01 Peltier Flashlight

QS sent me a link to a design that supposedly uses four Peltier tiles to generate enough light to be used as a flashlight.  Apparently there are no further details.

There are some points to ponder in what the link said:

It used the word ‘objective’, which means it’s something that they hope to achieve, not the actual results.

It said four tiles in the palm of the hand.  The body’s extremities are the lowest temperature parts of the body, and have no heat generating muscles.  That’s a really bad choice for a temperature difference.

The sentence beginning with “My design” quotes figures that have no basis in fact.  Putting it simply, there was no design.

So this all adds up to hot air, cheap talk and Vaporware.  Once the design is revealed, then we shall see.

They would do better by designing a mechanism that fits the arm and pivots at the elbow.  This mechanism would then transform arm motion into electric power.  It should be a lot easier to generate milliwatts.  This intermittent electric generation would then be stored in a supercapacitor and then used to light the LED.

I guess I will have to eat crow.  Here she is, with the demo flashlight, and the technical details.