Nichia 144A series, an output test of a 6500K 70 CRI sample. Nov 7th: added a test of a 5700K R9050 version of the 144A

41 posts / 0 new
Last post
Jerommel
Jerommel's picture
Offline
Last seen: 1 year 4 months ago
Joined: 01/04/2014 - 13:18
Posts: 6380
Location: the Hague, Netherlands

Cool, no more egg yolk. Thumbs Up

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 4 days 20 hours ago
Joined: 03/24/2016 - 07:44
Posts: 9353
Location: Everything is brighter in Texas

Good to see that the issue was just a sample problem.

The_Driver
The_Driver's picture
Offline
Last seen: 1 month 1 day ago
Joined: 10/20/2016 - 05:51
Posts: 1462
Location: Germany

@djozz: I would be really interested in a de-doming test of the 144A, preferrably a high-cri variant.

Wieselflinkpro
Wieselflinkpro's picture
Offline
Last seen: 3 weeks 20 hours ago
Joined: 05/21/2015 - 04:34
Posts: 980
Location: Germany - TLF

@djozz: can you please test to reflow the 114A to a XM Sinkpad / Noctigon? Perhaps the + or – on the terminal pad and – or + to one normal +/- pad. That should work I think.

djozz
djozz's picture
Offline
Last seen: 1 hour 18 min ago
Joined: 09/07/2012 - 17:04
Posts: 17960
Location: Amsterdam

Wieselflinkpro wrote:
@djozz: can you please test to reflow the 114A to a XM Sinkpad / Noctigon? Perhaps the + or – on the terminal pad and – or + to one normal +/- pad. That should work I think.

Why? I’m sure I will get that to work, but I guess you want to know the performance like that? I’m not going to do another 144A test soon, but my guess is that it will perform close to the test on my N119 board: the DTP-pad will make it heatsink a bit better, the too small pads will make it heatsink a bit worse.
Wieselflinkpro
Wieselflinkpro's picture
Offline
Last seen: 3 weeks 20 hours ago
Joined: 05/21/2015 - 04:34
Posts: 980
Location: Germany - TLF

Ok, thanks for your forecast.
It would be interesting for costom multi LED MCPCBs. And i hope to get similar Performance like virence MCPCB.

clemence
clemence's picture
Offline
Last seen: 1 year 3 days ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

Click here for FULL size

Additional beamshots:
The contenders

Gaggione LLC07N
Click here for FULL size

Gaggione LLC07N + 5 deg. Luminit Diffuser
Click here for FULL size

The_Driver
The_Driver's picture
Offline
Last seen: 1 month 1 day ago
Joined: 10/20/2016 - 05:51
Posts: 1462
Location: Germany

Thanks for all the pictures! Looks nice.

sfXzebra
Offline
Last seen: 2 years 5 months ago
Joined: 12/18/2018 - 20:52
Posts: 2

This photo is private.
Oops! You don’t have permission to view this photo.
Here’s a link back to your home page.

Facepalm SORRY,I CAN’T get the FULL size
thefreeman
thefreeman's picture
Offline
Last seen: 18 min 58 sec ago
Joined: 01/06/2020 - 09:56
Posts: 780
Location: France

I sliced one 5700K R9050 from Eurekatronix, optic is Olga S (lightly beaded 30mm TIR lens)

Original :
CCT = 5440K (Duv 0.0039)
Color Rendering Index (Ra) = 92.5 [ R9 = 65.8 ] R1 = 91.8 R2 = 95.9 R3 = 97.4 R4 = 90.4 R5 = 91.1 R6 = 91.8 R7 = 94.2 R8 = 87.0 R9 = 65.8 R10 = 89.5 R11 = 90.1 R12 = 71.9 R13 = 93.1 R14 = 99.1
IES TM-30-15 Rf = 88.95 Rg = 96.81

Sliced at 1.10mm :

CCT = 5090K (Duv -0.0006)
Color Rendering Index (Ra) = 93.9 [ R9 = 74.2 ] R1 = 94.3 R2 = 97.2 R3 = 97.0 R4 = 92.8 R5 = 93.5 R6 = 92.4 R7 = 94.4 R8 = 89.5 R9 = 74.2 R10 = 92.1 R11 = 92.5 R12 = 74.9 R13 = 95.4 R14 = 99.0
IES TM-30-15 Rf = 89.27 Rg = 98.07 CCT = 5090 Duv = -0.002337

It’s quite effective at improving the tint, color rendition get bumped up a bit, it’s unfortunate that Clemence doesn’t have any 4500K anymore, would have made a nice neutral-warmish LED with rosy tint since they had a better tint I believe.

With a Clear TIR (Olga RS) there is a strong eggyolk effect, significantly reduced with slicing but still too apparent.

Pages