Agro
(Agro)
January 24, 2020, 7:42am
1
Osram lists 2 new headlight LEDs, LUW CEUP.HD and LUW CEUP.CE
3000K and 2200K respectively
~1mm² die
1.5A max current
small package without DTP, won’t beat any throw records
Still low CRI, but I view this as a bit of refresher after the string of cool-only emitters.
EDIT:
Djozz corrected me, these are cool white and uninteresting.
JaredM
(JaredM)
January 24, 2020, 8:13am
2
Lets hope lower CCTs catch on in the automotive world. I wonder if these are intended for fog lights though.
djozz
(djozz)
January 24, 2020, 1:10pm
4
Both links from the OP seem to go to very cool white emitters, what am I doing wrong?
Agro
(Agro)
January 24, 2020, 1:28pm
5
Not sure. Let’s go with CEUP.CE. Does the link get you to the proper site?
When I download the datasheet, I see that colour is Cx = 0.33, Cy = 0.34.
I enter that in
http://www.brucelindbloom.com/index.html?ColorCalculator.html
and the result is 2934.4K.
djozz
(djozz)
January 24, 2020, 1:56pm
6
Agro:
Not sure. Let’s go with CEUP.CE. Does the link get you to the proper site?
When I download the datasheet, I see that colour is Cx = 0.33, Cy = 0.34.
I enter that in
Welcome to Bruce Lindbloom's Web Site
and the result is 2934.4K.
Cx=0.33 Cy=0.34 gets me to 5600K
djozz
(djozz)
January 24, 2020, 1:56pm
8
Dunno that calculator, does it include a CIE 1931 colour space calculator that is commonly used by the led manufacturers?
Agro
(Agro)
January 24, 2020, 2:00pm
9
I took a different calculator which explicitly names CIE 1931:
This one shows ~5000K…So neither ~3000 nor ~5600.
djozz
(djozz)
January 24, 2020, 2:06pm
10
that calculator gives me 5600K for Cx=0.33 Cy=0.34
Agro
(Agro)
January 24, 2020, 6:12pm
11
Maybe it’s just my machine but the chart has shifted labels. Yes, it’s 5600K.
Thanks for correction djozz!