Nichia 219c tint

34 posts / 0 new
Last post
Tjohn
Tjohn's picture
Offline
Last seen: 2 months 1 week ago
Joined: 12/22/2015 - 07:22
Posts: 334
Location: continental drift

Wow…charles lin,
You are the man…..
Thank you from all of us.
——
Yokiamy, charles lin has just shown the difference between the manner in which 219B and 219C leds are classified.
Nichia 219B sw45 4500K. leds in particular, are generally binned (classified) below the ANSI BBL, whereas the more recent 219C flavors are binned according to the Macadams ellipse system, aiming more towards being centered on the BBL (black body line), perhaps with the ‘very’ recent 3-step 4000Ks from Clemence in particular, generally ending up more likely to find their home above the line.
In addition to temperature, you need to understand that hue can vary, even within the same measured temperature band.
In this case, the 219B has a more magenta hue, the 219C a hue (tint) with more yellow, mixing with red to produce the orange you notice.

clemence
clemence's picture
Offline
Last seen: 1 year 2 months ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

Yokiamy wrote:
Can someone give an explanation why the 4500k (to me) looks more orange over the 4000k? (from the beautiful picture of charles lin)
I just ordered the triple nichia 219C 5000K 83 CRI on noctigon from intl, since the 4000K 92 CRI from KD is to yellow-ish for me

The difference in temperature from charles-lin’s picture between the 5000k looks very huge, are there for example 4750k nichia’s? To me, i’d think that looks like the sweetspot in temperature.

Never really trust monitors. I saw his pictures via my smartphone and indeed its more orange. When I get back to the laptop, it’s pretty normal with magenta-ish tint

Tjohn
Tjohn's picture
Offline
Last seen: 2 months 1 week ago
Joined: 12/22/2015 - 07:22
Posts: 334
Location: continental drift


A totally non-scientific experiment increasing saturation in the photo from charles lin to higher levels, the intention being to examine tint shift in the two beams from different reflectors.
219B sw45 from the Manker E21 on the left, the 219C on the right being from an unspecified reflector.

Pages