NewBie
*Retired*
I was fiddling around this morning, thought I'd share:
LED Charts & Human Eye Response
- Thread starter NewBie
- Start date
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PhotonFanatic
Flashlight Enthusiast
Care to share the source/link, also?
jtr1962
Flashaholic
Cree does have a 525 nm chip which puts out 9 mW at 20 mA and 3.2V typical Vf. This should be good for an overall luminous efficiency of 65 to 70 lm/W.
NewBie
*Retired*
This chart plot for the CREE are for the XL7090.
oeo2oo,
I generated the chart in excel.
oeo2oo,
I generated the chart in excel.
4sevens
Flashlight Enthusiast
nice. very nice.
Minjin
Flashlight Enthusiast
We've talked about this several times in the past. Thats why, theoretically, the best 'tactical' light would be green (and not cyan).
In the early luxeon days, there were many mods with different colored LEDs. Now they are very rare. /ubbthreads/images/graemlins/icon3.gif
Mark
In the early luxeon days, there were many mods with different colored LEDs. Now they are very rare. /ubbthreads/images/graemlins/icon3.gif
Mark
NewBie
*Retired*
FYI, this curve is scaled to the "perfect" efficiency, such that at 470nm, if the LED was 100% efficient, it would put out 62.139 lumens.
One of us asked me to show the bottom end a bit clearer, so I have expanded it:
One of us asked me to show the bottom end a bit clearer, so I have expanded it:
