TRUE YELLOW LASER or not? 25+ years wait over? // Valkyrie 573 donated by Tinker Lasers
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- čas přidán 15. 06. 2024
- Handheld, yellow lasers do not exist. That is my experience after I last year tried three that were advertised to emit some shade of yellow. None of them looked yellow to me...
In this video, I give it another try. Can I fill the yellow gap between red and green with a new laser that should emit a wavelength right between the ones I have tested to be closest to yellow?
Is it true yellow? How powerful is it? What is its true wavelength? How does it work? Will my camera recording in RGB (red green blue) even film it right? Let's find out!
Valkyrie 573 laser donated in March 2024 by: tinkerlasers.com
Link for laser safety sheet: www.lasersafetyfacts.com/lase...
Links for scientific paper on 573 nm laser:
dx.doi.org/10.1364/OL.34.002183 or
www.researchgate.net/publicat...
TEM-mode illustrations by DrBob at English Wikipedia: en.wikipedia.org/wiki/Transve...
en.wikipedia.org/wiki/Transve...
creativecommons.org/licenses/...
My Patreon-page: / brainiac75
Testing my near yellow lasers: • YELLOW LASERS?!? Final...
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#yellow #laser #mystery - Věda a technologie
13 is a very pure yellow by my eyes on my screen
yup me too
Same, 13 on my QD-OLED monitor.
11
Same, I am in my mid 20s though
I concur, pretty much bang on
13 suddenly snapped into being "This is yellow!" with 14 trending more toward orange.
Same here! It was like 11 almost, 12 nope, 13 THERE, 14 nope. 😊
Yeah, I think 13 is unmistakably the most yellow out of the lot. However 12-14 would probably be acceptable compromises.
Nothing before 20 is orange-y
Interestingly, 13 was smack dead center of the spectrum. I was surprised it was yellow.
12 is close enough that 99% of people would agree. That’s almost all yellow lol but you’re right 13 is the yellow.
Though that was a pretty damn genius way to convey what he could see irl but we couldn’t due to technical limitations.
You ever stumble across a video where you pretty much know nothing about what they’re talking about,
but you have enough generalist knowledge to completely appreciate every single second of it?
This is both humbling and very enjoyable. Thank you for sharing your excessively nerdy passion with this exceptionally passionate nerd ❤
I've been watching this guy since late middle school. I still put on his videos just to sleep too. He's such a soothing voice
SAME. I always thought to myself "how could i say that to the video creator without insulting them, making them think they are boring or something" lol
But like its perfect combination of interesting, captivating and soothing. Love this channel!
"Hey, let's send our cutting-edge secret laser to this youtube guy, without an NDA or anything."
That's the real miracle.
Yeah because its not at all cutting edge and its not a secret that yellow is between 560 and 590nm. There is no need of "searching for 25 years for the right wavelength". Science behind light is already fully cracked and one second of googlesearch away :D
@@nicoschroeder5379hey, you understand that you can't just turn a knob and get a laser at any wavelength, right?
How could you have watched this video and formed this opinion?
@@nicoschroeder5379 Tell me you haven’t watched the video without telling me you haven’t watched the video. He said it was cutting edge technology after he tested the infrared values considering that none of his other lasers did that
Since when NDA stopped anyone?
Oh, no, it isn't secret. If you search, you wil find you can buy one now for a few hundred dollars.
Thank you so much for making this video!
As laser enthusiasts ourselves, it was amazing to finally bring a true yellow laser pointer to reality with Valkyrie 573.
So glad we could make your dreams come true! 🌟
How does it work?
Awesome
@@Fisherdec Sorcery!
Good job on getting this color to work so well. You're website has lots of tempting offers.
I haven't figured out how to justify purchasing the Valkyrie 573 yet. I'll need to think on this a bit to come with the reason I need it. I'm sure the reason exists. I just haven't found it yet.
I can't wait for my 591nm pen!!
i heard about some students at a university in Australia making a true yellow LASER many years ago... cool to actually see one. thanks for the colour correction😍👍
Team 13 is superior to 12.
13 is the purest yellow
-Yeah that's when green hits 255 and red is 245 so its not pure its slightly green.- comment is deranged and not true.
@@crusher9z9so which one is? 14?
@@athmaid no 13 is still purest its just NOT PURE.
13 was 255r and 255g 12 was 245r and 255g
With a true color screen. 12 has hints of green. 13 and 14 were more true yellow color. 14 has hints of orange though is a typical car paint shade of color.
10 through 15 looked yellow to me, with 12 or 13 being the "most yellow". Before those, I'd call the colour "green", and afterwards I'd call it "orange".
I feel the same
100% agree
12 and 13
Same here
maybe i’m weird but i would have said 8 or 9 is yellow
same, I could agree to 9 being a slightly green yellow but anything below that is neon/lime green. Similarly I could call 16 a dark yellow but anything above that is just orange
this is incredible. i have been wanting to see a yellow laser light for such a long time. amazing work my friend
Congratulations on finding your unicorn, and thank you for sharing such an interesting piece of kit with us!
Anyone remember when Sharp made an LCD TV with yellow subpixels? Quattron
Yeah I do!
Nope, I have missed that! Not a bad idea actually. But I guess the cameras should record in RYGB too for it to really work well? Now, I want one of those screens x)
@@brainiac75 I think it came out in the late 2000s early 2010s. I remember how the Sharp engineer in the ad said "Of course you can't see the effect using your regular RGB TV." Yeah it's all a bit marketing wishywashy because you also need to record the footage this way.
@@brainiac75it wouldn't be useful as our eyes only see in red green and blue, so the screen only needs to be red green and blue to display all possible colours
Pepperidge Farms remembers
My trusty 17 year old plasma TV pleases my eyes by showing 13 as the yellowest of yellows.
So happy I found this. I have two high power 589nm Dragon Spartan lasers that are absolutely gorgeous but Ive been patiently waiting for something like this!
Whats the Watts on it?
Spartans in that wavelength typically reached about 50mW@@the_luminary
This feels so innocent and wholesome
Hey, fellow hobbyist here. I'd recommend punching out one of the diffraction grating caps, or going a step beyond that to add a glass diode window. The collimation lenses on these newer yellow-gap lasers have a thin coating on them that is very easy to ruin by trying to clean them or even just by dust. Nice review!
rarity define value, no one cares about the red lasers that are most available but yellow is the rare one
@@aufoslab What? What did that have to do with OP's comment?
@@ghoulishtheories7979 nothing really
We need to collaboration with the slow mo guys
Was thinking that as well!!
what would they do with it? :O
When i hear "high speed camera" my brain hears "slo mo guys" 😂 lol
@@mikayla_collie they have high speed cameras capable of capturing any potential pulsing of the laser
@@mikayla_collie If you have a laser with 20,000 pulses per second, slo mo guys have cameras which can easily go past that framerate and track the pulsing.
This really made me a bit emotional. The color correction felt like seeing something that shouldn't exist. Something about the awesome golden light just moved me. Thank you for sharing this.
Wtf?.....
bro was so impresssed by the yellow he actually linked it
They're not even crazy expensive. I'm glad you posted this, thanks!
You're welcome. Well, price is always relative but considering the quality of the steel host, class 3B output and the extremely rare color it surely is reasonably priced. Especially compared to the price of a 20 mW 473 nm blue laser I am looking at. Ouch!
@@brainiac75 Can you please reccomend me some saftey glasses for the laser shown in the video ? Thank You!
It's nice how you put the safety warnings right in the start of the video.
nice! and power output is perfect too
That is a top-notch laser awesome find
13 looked the most yellow to me. Even more so when seeing the grid with all the colours together.
Thats soooo cool!
You should definitly make a Laser Rainbow in a foggy Room. That would look great :D
Yep, it is a dream of laser despite its caveat of TEM01/10-mode (I've heard that some of them hit TEM00, though it is rare). I do have enough colors to make a decent laser rainbow now. The issue is that some of them - like the 593.5 nm amber one - have short duty cycles so it will be tricky to have them all lighted at once without overheating some of them. But its not impossible - maybe with a little help from some friends... Thanks for the early watch as always!
THis is my first time watching any video about lasers, because I don't care fort them. But watching you talk about the more technical aspects brought out my inner nerd. Subscribed.
9:10 no you don't, you just need a rotating mirror and a photographic camera.
Make the beam move fast enough and with a long exposure shot you'll photograph a dotted/dashed line.
Also, the bit about the "which color looks more yellow" just confirmed to me that my main monitor is completely out of calibration, and my secondary Dell monitor is much more accurate.
Was about to comment about the "long" exposure.
Or get some photodiodes and a (nowadays very affordable) oscilloscope.
That works, good idea. I wouldn't suggest a long exposure - the shorter the exposure the higher the frequency you can capture whereas the longer the exposure the more accurately you can measure leading to a trade off. But absolutely moving the laser at a consistent (preferably high) speed would allow a high frequency pulse to be detected and all relevant details measured with reasonable accuracy by a lower frequency camera. A spinning mirror would offer that (with some line length trig needed). Again, great idea. - From a random postgraduate physicist.
I don't have a good mirror handy. I do have a fidget spinner. I would just spin the whole laser.
My front surface mirrors have issues that would distort the beam. (In other words, I didn't store them right.) Other mirrors will have an annoying second image.
@@splitprissm9339 Yeah, at 20 kHz, pretty much any modern photodiode/oscilloscope combination would work, even the $20 scope.
14 got flashbanged by my white keyboard writing this lol
If 14 looks right to you you might need to drink more water. 😉
@@Chicky_Lumps You do realize that different displays have different color accuracy right
@@jamiealeksic8428 That is true actually
@@jamiealeksic8428 Then they should find out how to adjust *and calibrate their colors, at least roughly. Both my monitors 13 is a perfect yellow. an HP whatever and a LG IPS display.
@@jamiealeksic8428exactly this. I have two cheap monitors at work, the main one is less red than the secondary one, so 13 looks greenish on it, and 13 looks pure yellow on the other one.
4:47 holy crap that's awesome!!
Good work sir, currently doing a project myself, if it works it works, if not we can always scrap and try again.
Thanks for the color correction. That seemed so green. Congrats on the find and excited for the next one! ❤
13 was the square that seemed to me to be the shade closest to yellow to my eyes. 😊
It is crazy how I was not interested a bit on laser things, but now, i want some lasers lol, nice vid!
i really like your collection of model cars man
13 for me too
Laser pumping is such a strange and cool phenomenon. Reminds me of how they have to double-pump the diodes at the National Ignition Facility. So I love the investigation part of this video.
What an event to celebrate! There's little pure yellow in Nature though, although that's no reason for us not to view it, as some other species may do. And so, I fancy about the time, at which, by gene-manipulation or device-implantation, we'll come to see all of the primary colours - and in great detail, so that, in sixty-or-so years, we shall be able to detect violet, pure blue, green, yellow, scarlet and maroon - or more. But, in any event, it would sure be worth waiting for
This was an incredibly interesting what of conveying this thing which CANNOT be conveyed with your cameras, our screens, and the fact that all of our perceptions - and INTERPRETATIONS - of color are different!
You managed to solve all of these, by telling us that, to your eyes, the laser most closely matched the 12 sample. And while we have no real confirmation for ourselves, you've basically narrowed the gap down to... "your credibility and our willingness to trust in you," which is quite a bit easier than... just assuming all of those other variables are somehow magically correct for each and every viewer.
Furthermore, the spectrometer helped! And the additional complication at 5:00 was fascinating!! I love when videos are this thorough
Congratulations. This is truly a phenomenal achievement.
Related: used to set up video walls back when they were CRT and then dlp. No matter the customer there was at least a man day worth of time teaching color science and theory. The questions were always why doesn't this look as good as they do on TV/ magazine. And it looks good here now but when I walk over here the colors are all wrong again.
Cool part of DLP was they always added more support colors to the color wheel, cyan, yellow, magenta, etc... Cool stuff outside of the ghosting effect when you moved your eyes :D
Congratulations 😊
Yellow lazer looks AMAZING :) ❤
Yellow LED with resistor in parallel should clarify the pulsing question, if connected to oscilloscope.
Works fine. On old crt scopes you can make the dot “jump” over the
LED when putting it in front of its track.
Clever. Agreed.
Can you elaborate a little? I'm familiar with circuits and oscilloscopes, but I don't quite follow how this experiment with clarify the question.
@@Cyberguy42LEDs also function as very inefficient photodiodes, so if you pulse light into them and hook it up to an oscilloscope you’ll be able to see the pulses. Not sure if they’re selective for colour though, but if they are this’d work very effectively.
I never thought about yellow lasers, but your quest for one got me excited.
My dream is a true blue, so now I am excited again! Best of luck with that.
Also, 12 was the yellowest yellow to my eyes.
Whoa, we still have a ways to go with perfecting screen and camera technology. I've never been so intrigued by the color yellow, as a fan of green myself.
From what I remember from my practical physics lasers courses, you can get yellow by using non optimal angle on the OPO (optical parametric generation) crystal . I don’t know the efficiency but it should be pretty low compared to green if you use a 1064 nm laser, but with the crazy power/price we can get nowadays maybe it would be enough to get 20mw of yellow output at a reasonable price.
Maybe the large metal casing is to dissipate more efficiently the waste heat.
I am delighted that you could finally find almost all the lasers I always loved playing with them XD and watching your channel for a long time it's been a journey, even if I needed to change accounts I always watch it when a new video gets out
I would say 14, 13 is still slightly green for me.
EDIT: looking at all of the colours it is 13 that is the most yellow
Tally Hall reference?
for me 13 is too
@@Gregory_12 no, I will look that up now
i was between 13 and 14 but that may be the color on my monitor. this is seriously impressive and had never thought about there being a yellow gap before.
I would love to see these new colors added in show lasers. The richness of color is unmatched compared with RGB
Congratulations and well done!! Cheers to your excellence and persistence!!
When I tried this on my first monitor, 13 was the yellowest. When I tried the other screen 12 was definetly "yellower".
Apparently I had slightly different gamma settings, thanks for helping me fix that.
12-13 is my yellow! Nice to know you got that pesky gap filled!
Styropyro will love this!
for me 12-16 is the yellow region, with 10-11 and 17 being the transition regions
it's hard to say which one is theb"most yellow" because 12-13 is lemon yellow and 15-16 is the sand yellow
I can totally understand people thinking lemon is the true yellow, but I was taught that sand color in kindergarden
New Brainiac75 video lets GOOOOOO
Like your enthusiasm - I always feel great when releasing a video. Perhaps because weeks of work and focusing on one subject is finally concluded ;)
@@brainiac75 lasers make me feel good as well
0:49 @Brainiac75 I couldn't help but notice your beautiful collection of models, Nice one! Thankyou for the video
12/13/14 all look yellow to me. Very awesome video.
for the yellow test, I was using an old TV for a monitor and 15 looked the most yellow (though it got hard to differentiate between 12-14) then I switched to another monitor and there's clear separation between all of the, with 13 definitely being the most yellow
number 15 was the yellowest to me
13 was the most yellow to me initially. On second watch I could see either 12 or 13 being the most yellow.
Immensely satisfying, though I have to say that amber laser is absolutely gorgeous.
I have a 473nm dpss. The colour is beautiful.
Great work👍
Thank you very much - more to come!
There's no "yellow gap" in camera. The only reason colour reproduction failed is that no tristimulus camera implements human metamerism. Every camera uses colour profile to produce realistic output but it can only do that for some subset of spectral distributions and it so happens that your camera's profile kills pure yellow.
In principle there is nothing preventing same issue with red, green and blue since all of them are recorded as a mix.
Aren't CMOS sensors with RGB filters, ergo non of them are passing monochromatic yellow? Most of the time yellow is non monochromatic, it is a spectrum from white light deflection, therefore red and green are "flying in" at the same time.
@@MariuszChr I think you are correct. May be biased towards because 571nm is closer to the center wavelength of the g filter.
It's not really a camera issue entirely, with the proper sensor it can capture any visible light color (just as their spectrometer can, just depends on the sensor though). The bigger issue is with the screen itself. Most monitors use the sRGB color space and things with nearly singular wavelength spectral distributions like lasers will resolve to colors outside this gamut. As such these colors will end up as imaginary colors in sRGB and will clamp into the gamut which will distort their hue. With a proper theoretical monitor that had perfect coverage of the entire gamut this color could be displayed properly, and in time monitors with say Rec 2020 coverage will cover most the perceptible human visual gamut anyways and won't distort colors quite so much, so this is mostly just an issue with current 90s-era non-WCG monitor color standards beyond just the sensor's ability to capture it.
"Aren't CMOS sensors with RGB filters, ergo non of them are passing monochromatic yellow?"
That's false. Every non-specialized image sensor has sensitivity to all wavelengths between 400 and 700 nm.
"It's not really a camera issue entirely, with the proper sensor"
You did not read my comment. You do not understand what I say but you also do not ask questions.
"The bigger issue is with the screen itself."
There is no issue with screens. Any sRGB-calibrated screen is capable of accurate colour reproduction of any correctly recorded colour within it's gamut.
Cameras on the other hand cannot ever be calibrated except for a subset of spectral distributions. A set of spectral distributions might produce same colour for a human but it will get mapped to different colours in the camera. The characteristic which defines whether it happens or not is "metamerism".
@@user-yc5fq9bv3u You didn't read what I said. This yellow laser color is fundamentally outside the sRGB gamut, and therefore is impossible to display on any consumer monitor which is likely part of why it shifts to green like this. You probably do not fully understand how color works in computers if you do not think the monitor is an issue in this case.
This has nothing to do with "metamerisms", I do not think you again understand how color works in computers. Spectral data once measured can be converted to human-recognizable colors via color-matching functions that have been measured based on human perception. All computer color is already based around these "metamerisms" and other perceptual illusions with saturation, contrast and etc (with varying degrees of accuracy depending on the model use).
Of course, the camera is not a spectrometer so the problem may also be that indeed something with how it measures the color, but it does not really need to know what the exact spectral distribution is to know what color it is if it has a conversion to these other established color spaces. It's not going to be perfect but yeah it clearly works well enough when designed properly as cameras look quite accurate to what we see otherwise.
Yes, number 13 seemed more yellow. 😎 Thank you for a great 573 video.
Beautiful 1:18 car collection!
I miss your videos about laser
Glad you like them! I would say I quite often release a video about lasers - one of the main topics of my channel and always visually spectacular compared to magnets ;) More laser videos to come in the future!
@@brainiac75yeah the laser vids are also my favorite. We need more laser content in CZcams!
Please try to film it with other cameras available in your household including older camcorders, cellular phones, dashcams, etc. and make a separate comparison video. One of them will definitely pick it up clearly!
Biomedical applications:
Flow cytometry: 573nm lasers are used to excite fluorescent dyes in cells, allowing researchers to analyze and sort different cell populations based on their characteristics.
Confocal microscopy: This technique uses lasers to create high-resolution images of biological samples. 573nm lasers can be used to excite specific fluorophores in the sample, providing detailed information about its structure and function.
Ophthalmology: Yellow-green lasers are used in some retinal imaging and treatment procedures.
Other applications:
Holography: 573nm lasers can be used to create holograms, which are three-dimensional images created with light.
Laser light shows: The yellow-green color of 573nm lasers makes them suitable for creating visually appealing laser displays.
Material processing: These lasers can be used for micromachining and marking certain materials.
Metrology: 573nm lasers can be used for precise distance measurements and other metrology applications.
Hurray for Yellow!
Had no idea a Yellow lazer was so rare. Very kewl 👍
It makes me think of a light bulb that emits brown light.
That's not necessarily impossible you just need a near infrared red wavelength that you can see that interferes with a wavelength of a yellow. Both of which you have to be able to see. Its like using noise canceling.
Well there is no brown light, there is yellow light. It’s more like a blue led, it took way longer to invent than red and green.
@@jaredf6205 yellow is not brown. Brown is dark orange.
@@crusher9z9 jaredf6205 was pointing out that it doesn't really make sense to compare a yellow laser to a brown light emitting bulb since 'brown light' does not exist (the color brown is merely how our brains interpret a combination of lights with certain wavelengths). In contrast, yellow light does exist, so while a yellow laser may have been quite difficult to develop (as was the case with the blue led), there was at least reason to believe that it was possible.
@Cyberguy42 brown is one wavelength. Orange. In order to make brown light though you need to do some shenanigans with destructive interference, like about half of the frequency as the orange light used. Probably.
It's like there's some buggery going on here! First that laser definitely appeared green to me but then after going through the numbered gradient exercise and seeing its beam together with the real green one, it correctly appears yellow throughout the rest of the video 🤔
edit: The buggery is software colour correction apparently :D
I think he mentioned color-correcting the video so that it appears like it looks IRL.
@@delphicdescant Your eyes can also adjust white balance so this effect can happen IRL. This is visible when aligning large arrays of multi-wavelength red diodes. 637 and 655 look basically identical at first. 30 minutes later after aligning 15-20 diodes or so (not even half way.. :() the light red looks pink and the dark red looks red...
Also had weird stuff happen with green or red outputs then going into a white light situation, it shifts dramatically.
It must be glorious to be able to perceive the difference. Some things I will never see.
ive always wanted a true yellow laser too!!
Ask TheSlowmoGuys about filming the laser output in slow motion, maybe they can do a million frames per second?
It would be easier to just make the laser dot move faster using a spinning mirror
or use a photodiode hooked up to an oscilloscope
I would say 11-13, so 12 would be spot on. 🎉 congratulations on the yellow laser😁
Thanks! :) Yep, I am confident that most people would immediately call this laser yellow. In my comparison of the laser dot to the screen I sometimes ended at 13, but most times I stopped at 12. It is trickier than it looks because of the intensity difference between the screen and laser dot in real life...
Do you guys set your display to sRGB ? Then take screenshots 12 -20. Then look at them all at once.
...15 is perfect yellow. 13 is straying towards highlighter yellow .
Viewed at various screen brightness on the following OLED devices :
Sony Xperia 1v, 1 III, Samsung S9 tab ultra
I agree with 11-13, and I'm using a CRT monitor, my LCD monitor broke so I'm using this old Samsung SyncMaster 900SL I guess the results depend on my eyes and the characteristics of the RGB phosphors. I keep the brightness rather low as I am subject to migraines. Cranking up the brightness fully brings yellow closer to 14 for me. Monitor color balance is set to 9300K, I'll bet that matters.
For me, color 12 is a "neon lemon yellow", with a very slight greenish tinge to it. Color 13 is full-on yellow, with 14 being a "golden yellow" with a slight orange tinge.
That's beautiful
13
Your brain tries to compensate, so your perception is based on the previously viewed colors. Maybe my choice would be different if you went from red to green?
I think they are achieving the frequency by employing Doppler shift. I also believe they are accomplishing this in one of two ways:
#1: get as close as possible with traditional, off the shelf technology and then direct the beam into a rotating mirror at a specific angle of incidence. The resultant "reflected light" would have it's wavelength lowered by a predictable (but more importantly) TUNEABLE amount
2: To obtain the needed Doppler shift without the need for bulky spinning mirrors, you could use a mirror mounted onto a piezoelectric material like quartz, and then all you would have to do is tune the frequency until you get about double the yellow frequency. Once you are at double the desired frequency, you simply intermittently interrupt the beam so that it appears to be half of what it actually is.
I'm probably not describing it in a way that makes sense but i can visualize it in my head.
Man, that tv company that had a YELLOW diode set with red, green, and blue diodes too was crazy and now I wish they had caught on.
Oh great, now I really really want a yellow laser of my own.
The first one I thought of as "that's yellow" was 12, but then 13 popped up and I instantly changed my answer.
I should note that I've got a calibrated, Pantone certified OLED display. Other displays, tend to be red-shifted from factory to (over) compensate for the blue phosphor in the backlight because people generally prefer warmer light sources. In full saturation with no context, it would make sense that "yellow" would be perceived a frame or two sooner than on a display intended for real-world color accuracy.
12 and 13. Can't tell due to eye problems however graduating with art honors I can still tell colors well enough.
I suspect the reason it appears green is that sensors with a Bayer arrangement (which sony use) have two green pixels for every red or blue.
I got the same as you, 12 was the most yellow for me on my monitor.
good job on video colour correction
Congratulations. I thought you were going to say it wasn't correct. Nice to know there is a yellow laser out there.
13 is pure yellow to my eyes on an iPad Pro. 12 is almost the same, looks like you have a really yellow beauty here :)
I just got a hold of some LEDs advertised as 573nm but they appear more like between 9 and 11. Mouser called them yellow-green.
I think you should try NUBM07 laser diode module
That was alien to watch, just imagining a yellow beam is crazy
Had a 594nm NeHe laster some long time ago. Unfortunately it didint work for more than a few weak flashes, probably gas pressure related problem. Certainly gas related problems after it fell from a shelf later and broke one of the ends off... It did have a fairly nice yellow for the few moments i could observe it.
A couple more interesting phenomena that can be observed with 573nm is red shifting during scotopic conditions. The 573nm will look purer yellow in darker conditions than in lighter. And vast colour perception changes depending on what reference source is used. For example use that 558nm next to it and the 573nm will look like 583nm. You don't have too have the reference source on when observing the 573nm either. Your eyes need to readjust so you can turn off the reference source and use the 573nm straightaway afterwards and observe a change. This also works in the other direction when using a longer wavelength as a reference.
When watching through the cards initially, number 11 looked the most yellow to me, but in the composite shot with all the cards, number 13 looked the most yellow and number 11 looked significantly more green.
Undecided between 12 and 13, LG VA panel.
The double yellow gap makes sense, we just aren't accustomed to think with it.
It's not 473, but Tinker does have a 480nm "Ice Blue" option now, that would be a cool wavelength for the color-perception test
12 on a high end highly accurate calibrated screen. 13 almost seems to be it, bit there are hints of red (orange) there. 11 is pretty solid yellow as well, but the intensity isn't as high and i can see a bit of green.
I have no idea who you are or what this is for but I'm all with it