I dont know how I missed this led… but I did… is it still available anywhere to purchase?
17.57€ |20pcs oslon ssl 150 Hochleistungs LED 3030 1212 tiefblau 439nm ~...
Smarter Shopping, Better Living! Aliexpress.com
I dont know how I missed this led… but I did… is it still available anywhere to purchase?
The reference source differs depending on the standard/method. For example the CRI standard CIE 13.3: 1995 describes the duv tolerance (i.e. acceptable duv to consider the CRI valid in the first place) as +–0.0054 with BBL being the reference source for CCTs up to 5000K and D series illuminants above it.
This is also true for CRI, CQS and CRI2012, even if the duv tolarence varies a bit.
In the TM-30-15 and CIE 224:2017 the transition from BBL to daylight illuminants is gradual.
In my data, however, duv is always the distance from the BBL, even on sources above 5000K.
I have the Lee swatch book to play with.
We’ll be very grateful to see your test results then. My personal request is how far can we trim the blue spike. Also how the minus blue spike filter affects CRI.
Many thanks
Clemence
Mauri, the CRI datas are missing
Where do you get those green filters? I have several LED’s that could use that.
Lee offered a free small swatch colour sample, it consists of hundreds of its colour gel filter. Each sample is enough for two small flashlights. Just contact your local representative marketing. I lost my colour swatch in the project site. I’ll need to order another
- Clemence
Who is Lee?
Who is Lee?
An actor I guess
Bruce Lee
Texas_Ace:Who is Lee?
http://shop.leefiltersusa.com/Swatch-Book-Designers-Edition-SWB.htm
Thanks for the link
Texas_Ace:Who is Lee?
An actor I guess
Oh, look who the funny guy is….lol
netprince:I dont know how I missed this led… but I did… is it still available anywhere to purchase?
Thanks!
From my understanding looking at Maukka’s chart: –0,0055 means the tint is lower than BBL while 0,0093 means the tint is higher than BBL/SBL.
very helpful, thank you
… green filters? I have several LED’s that could use that.
pic is a link to more details:
Three different minus green filters tested: minus eighth, quarter and half.
Considering that a perfect redendering index score happens when the different wavelenght's relative outputs follow whatever given temperature pattern/curve shape, I guess we could even fine tune (maximize) the CRI and tint out of any good CRI emitter with a custom tailored filter.
Cheers :-)
I have oslon LCW CQAR.CC-MR-6L-L2, no any grinnich. Compared with 219B sw40, it is slightly yellowish. I planned to order 7 pieces OSRAM OSLON® Square LED 4000K CRI 95 2W HIGH POWER 3030 GW CSSRM1.BM | eBay with C5/D5 chromaticity coordinate (below of BBL). If C5/D5 is missed, here is guaranted reddish tint https://ru.aliexpress.com/item/OSRAM-OSLON-SSL-80-High-Power-LED-1-3-Watt-LED-BLUE-LB-CP7P/32295974290.html
I have oslon LCW CQAR.CC-MR-6L-L2, no any grinnich. Compared with 219B sw40, it is slightly yellowish. I planned to order 7 pieces OSRAM LED 3030 | OSLON Square | 4000K White | CRI 95 | GW CSSRM1.BM | eBay with C5/D5 chromaticity coordinate (below of BBL). If C5/D5 is missed, here is guaranted reddish tint https://ru.aliexpress.com/item/OSRAM-OSLON-SSL-80-High-Power-LED-1-3-Watt-LED-BLUE-LB-CP7P/32295974290.html
How about these:
Smarter Shopping, Better Living! Aliexpress.com
Can’t find info on the chromaticity though, only the colour temperature (3000K)
Looking into filters, i found Lee Zircon LED dedicated filters.
Explore Zircon Filters from LEE. Designed to fine-tune lighting inconsistency & last 200X longer than standard filters. Browse our LED Lighting Filters.
Maybe better to discuss this in Clemence’s topic.
On the lux-rc site I see the following comment:
Nichia 219B MDC with T11 lens overperformed CREE XP-L HI with standard narrow lens almost twice in candelas
OK, they use a custom throw lens which is better than stock. But nevertheless they consider dedomed 219b a good option for throw.
Does anyone here have experience with that?