Re: OZ5N Auto PLL
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Efficient things, blue LEDs. Rumour has it some are approaching 50% efficiency. Which means if you could reflect all the light back in, you'd see the current consumption drop.
I did once try to do that, but couldn't arrange any optics to collect and reflect back more than about 10% .
One thing that makes them seem bright; the rods in the eye (responsible for night time vision) are very sensitive to blue, so off bore-sight, blue light will always stand out in the presence of other colours. It's no coincidence blue lights are used on emergency vehicles.
On 19 July 2016 at 16:27, geoffrey pike gi0gdp@... [ukmicrowaves] <ukmicrowaves@...> wrote: