[time-nuts] [OT] Ikea Lamp

Magnus Danielson magnus at rubidium.dyndns.org
Sun Jan 31 15:10:48 UTC 2010


Steve Rooke wrote:
> Not wishing to push this O/T thread more O/T but coming from England,
> and now in New Zealand, we have these sodium streetlights which I
> think are a pain in the neck. They have only two narrow spectra of
> yellow light and although they produce light it makes it hard, if not
> impossible, to make out colours. I wonder if they are being used in
> other members countries?

Sweden has them. It's the classical sodium D1 and D2 lines. Kind of neat 
that one can calibrate ones spectrometer by the highway. :)

I think white is becoming more popular now.

Cheers,
Magnus



More information about the time-nuts mailing list