World's First 642nm 150mW Laser Diode

[tocket]

I would say 2 of these would be much brighter..
640nm is visually twice as bright as 650nm and you're running 660's.
I have only run one of these up for a few minutes and not seen the beam through fog in the dark, but would say that the spot of a 150mW/642nm is over 3 times brighter than a 200mW Opnext HL6545MG.

Anyone got an eyeball sensitivity chart handy to give the scientific version of the 640/660 comparison?

FourDee - have you confirmed the price/availability and minimum qty with your supplier, and are you willing to run a GB on these little fellas if there's enough interest?

Stockman and Sharpe says 640nm is 2.8 times more visible than 660nm. I whipped up a little diagram to easily compare different red wavelengths. Please note that the luminosity is relative to 532nm.

[pelosh]

Kvant complete 450mW modul made up from 3 diodes for 960 euro + VAT...not far off..

Nice diagram!

[dave]

hehe, quite a fair way off, and no fun in building either..

[drlava]

Tempting, the emission specs are decent although they don't mention the astigmatism distance.

[FourDee]

OK, here's the deal. I really want some of these diodes, so I'll be ordering some soon.

I think I'll order 5 or so, I will keep 2, and sell the other 3. This is not exactly a group buy, but at least some of us will have these precious diodes

I still will have to see what price I'm going to sell them at.

[p1t8ull]

Well there's currently 12 wanted so if you do want 5 FourDee, then we're up to 17.
We need 25 to make the price break..

[drlava]

count me in for a pair

[p1t8ull]

Thanks Doc, that makes 19 now.

Anyone else in?

£117.50 +shipping for 150mW of 642nm with superb beam specs

[badger1666]

i wish i can join in on this but i just cant do it this side of christmas
got to save for kids presents
gutted

[dave]

Im in for 5