Making Real Holograms!
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- Опубликовано: 18 ноя 2020
- Get your hologram film today at: litiholo.com/hologram-film.ht...
And to learn more about the hologram printer go to: www.litiholo.com/3d-hologram-...
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Holograms are truly an amazing trick of physics that allow you to capture a 3d image and save it on a photographic plate. But unlike a traditional photo all the 3d information is retained allowing you to view objects from different angles. Today we're going to be looking at how holograms are made, the different recording media, and some properties of light that allow these amazing images to be captured.
Materials:
Blue laser - www.amazon.ca/gp/product/B07K...
Green laser - www.amazon.ca/gp/product/B018...
Beam splitter cube - www.amazon.ca/gp/product/B07P...
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Наука
13:06
I thought he wa gonna say
"Just to be extra safe, I also shut down the power grid in my city"
That would cause more vibrations from everyone suddenly panicking though
@@thethoughtemporium And more noise from the gensets starting up and running.
@@thethoughtemporium IIRC the sensitivity of some devices is amazing. When one test setup kept detecting shifts in the earths gravity field once a week, everyone wondered what it was... then someone realised, it was the bin lorry emptying the bins. XD
LIGO seems to need to be tuned for these events/trucks/trains, but I forget where I first heard the story from, long ago from some of the more basic detection methods.
@@TechyBen "it was the bin lorry emptying the bins" took me way too long to figure out what that meant lol. 'it was the garbage trucks emptying the garbage cans' for any Americans.
@@X4Alpha4X thank you for the translation as a non native speaker.
1:40 _"Let's start simple: What is light?"_
Me: 👀
It's much more complicated
**Vsauce theme intensifies**
1:40
"What is light?"
Me, a physicist: *starts sweating intensely*
"This is the part where the physicists collectively panic" - I guess that's entirely right
This has actually been keeping me up at night lately because I can never seem to find an explanation in between "extremely basic middle school level" and "PhD level"
Light: Stuff that makes eyes go see
Light: I can't really tell you what it is, but I know it when I see it.
I'm still trying to reconcile the whole wave/particle thing. Like when we talk about interference patterns what does that actually look like from a particle perspective, what are the individual photons doing? Also what's the actual difference between magnetic fields, electric fields, and electromagnetic fields from a particle perspective? I've learned a lot about photons and EM in general but it's always either treating EM as waves or as particles, like 2 different theories with no clear connection between the two. It's easier for me to understand it in terms of individual particles.
@@LanceThumping Thats the con there is no middle ground because they like to hide behind the confusion, you will however find plenty of intermediary information on Light as waves ! There was an argument as to wether light was a particle or a wave, then it was definitely proven to be an electromagnetic wave by the end of the 19th century, but the Kabbalists who are obsessed with numbers and therefore like the idea of "countable" particles, like spoilt children sulked and claimed it was a particle and a wave, claiming the photoelectric effect was proof.
It isn't they falsely assume that the increased electrical current, firstly is manifest as a particle (an electron, there is no definitive proof of that either ! its measured as an electrical current not a series of particles) and that secondly that light must therefore be a particle too and be knocking off what they assume to be electrons, like being bombarded with tiny pingpong balls, a ridiculous and child like assumption, which implies both "electrons" and "photons" have mass, which is where their childish logic comes from. Just study light as a wave ignore the quantum quacks (by which I mean ANYONE calling themselves a "Quantum physicists") They are little more than confidence tricksters peddling contradictory nonsense as the secrets of the universe !
I made some red light holograms about 20 years ago, with an x-ray film that wasn't sensitive to green light. So the dark room ended up being lit green. The best image I got was of some fools gold, and the hologram glittered like the real thing. Really helps show that it's some quantum trickery rather than just a 3d photo.
I had the idea of embedding a fool's gold hologram on the surface of a car
Made some in the early 90s, lots of fun, simple but not so easy. My favorite image was a coin, seems shiny things work the best.
There's nothing particularly quantum about it. It's a completely classical wave optics thing.
I did similar holograms, but with the two beam method and i'm lucky about living a bit remote and in an ugly brick and concrete house free from most vibrations.
My results weren't great, because my laser was rubbish and cat hairs. We had a siberian cat at the time and the hair was everywhere. Even in rooms where the cat wasn't allowed, because of the heated floor. The heat convection made tiny fluffs of cat hair hover around.
Looking forward to your custom chocolate holograms! Thanks for mentioning me. Those RGB holograms are sweet!
The biggest issue atm has been trying to find photoresist. Also got some ideas for ways to improve the shims you showed how to make that Im still testing out. The real score will be if I can extract that blooming rose and case it
When talking lasers, I think styropyro would be a really cool person to add to your conversation.
@@thethoughtemporium Could you link to a red laser diode also?
@@thethoughtemporium I wouldn't mind seeing a video on DIY photoresist for holograms :). Let's see how far you can scale up the holograms.
I love that you guys build upon each other's work like that. This is like proper science publication referencingy love it!!! Can't wait for the next issue.
Fun fact (assuming this isn't mentioned in the video): magnifying lenses or other optics (microscopes, telescopes, maybe mirrors?) work inside holograms
One of my friends has a one of a kind (because he made it himself) hologram of his huge reflector telescope set up looking at saturn under pretty much perfect conditions (he was working well into the atacama desert at the time - on some project or other). It took him weeks for everthing to be working right, but he got there in the end.
He sill complains though, because the exposure he really wanted was messed up by a minor earthquake - he missed out on getting both Titan and Rhea clearly visible.
So you could make a hologram of a cell?
@@charleslambert3368 Certainly. In fact, I've seen several. (though to be clear, it will still only be a hologram of an image of a cell through a microscope - to do a direct hologram of a cell would probably require *much* more effort, if it is really possible at all.
@@Erin-ks4jp iz would be really sick though
You can make a hologram of a hologram too. Just put the master in the position of the object and new film in the proper location and expose as usual.
“DO NOT STARE INTO BEAM WITH REMAINING GOOD EYE”
You don't need a dangerous laser to do this.
@NopeNope-zu4hw It’s a joke, also any laser can be dangerous to the eye
@@Liam-fx3ir Yea, it's a joke, with implications: false implications.
@NopeNope-zu4hw what’s false about it?And why would that matter anyway in a joke?
@Liam-fx3ir Hey, I know; get a life, instead, White Knight.
“So what is your resolution”
People who use holograms: “yes”
1080 x 1080 x 1080
The interesting thing about film resolution is that it actually does kinda have it, its just that its caused by the grain size of the light detecting crystals in the film.
haha - "a necron from 40K which I borrowed from a friend". It's not mine, honest
Everyone knows the thought emporium is actually adeptus mequanicus propaganda
You know it's borrowed because you can't hear the Necron go "soi-soi-soi-soi-soi..."
@@tettettettettet Thus why he "borrowed" the Necron. Gotta get that totally non heretical research done somehow.
Well he won't show us his My Little Pony collectables, will he?
@@tettettettettet He's done enough tech projects to call himself a proper Magos
Fun fact: photons are not special at all with their wave particle duality. The double slit experiment has been performed with clusters of about 60 Carbon atoms and the interference pattern was still created.
I remember in physics class we actually had to calculate the theoretical sizelimit of a particle, that could still fit through a slit of a double-/single-slit experiment, and yield interference patterns. I don't remember our results, though. But it was a fun exercise
@@Pleetzken Yeah, like does the double slit experiment work if you shoot whole corn cobs through giant slits at high velocities?
@@SamChaneyProductions there is a point where the slit needs to be smaller than the particle, and/or the velocity higher than the speed of light. The slit for cannonballs to work could only be a few millimetres wide for example
@@Pleetzken it's because of the value of planck's constant
Yeah let's make a hologram of carbon by reflecting carbon atoms off of it
I wonder if we will ever get holographic cameras, that would be really cool
Hello! ^^
Wow didn't expect to see you here!
Yes! We already have them! It is just a 3D camera/scanner, (not a stereoscopic one). Your camera can do the same, using photogrammetry and only your phone, or using structured light if you have a projector, and a turn table. You don't need 2 million redstone comparators or armor stands for this one ;)
STAY MAD
HORIZON ON TOP
The apple LiDAR scanner is pretty close enough
I made all the holograms you mentioned back in the late 60's early 70's in a studio we had on Venice beach in LA. We used to airbrush the emulsions on plates. Yes it was that far back. Our "stable-tables" were large 4'x8' (inside measurement) cinder block plastic-lined tubs filled with sand on which lay inflated inner tubes & on top of those was a heavy solid steel plate to which we could attach articulated arms welded to magnets for mirrors, lenses, splitters, Q-switches, irises, shutters etc., or we could drill alignment holes for the same components. Most of our hefty lasers were on loan from SpectraPhysics, mostly HeNe's & Argons. We eventually started producing white light transmission "Moving Holograms" where we would use 35mm movie cameras, spherical lenses & subjects on rotating tables, and the lasers were then shone through the film via spherical "rod" lenses to produce series of vertically aligned 'compressed' frame-by-frame holograms for motion capture, a holographic GIF if you will. This video reminded me that we wore surgical masks to stop our breath from disturbing the air molecules. Messed up many a plate because someone spoke or god-forbid sneezed. By-the-by, Spontaneous Parametric Down-Conversion when coupled with lasers produce quantum-entangled interference patterns.
(I failed the physics class on interference, but at least I can understand this really well)
Were your studies being... Interfered with? :D
@@halyoalex8942 actually, yes, it's exactly what happened.
It also wasn't quite right.
Peek + peek = maximum
Trough + trough = maximum
Peek + trough = minimum
Trough + peek = minimum
@@theaureliasys6362 yeah, you're right
I actually don't get it. The 3D interference pattern gets recorded in the material, alright, and then what? How does it restore that pattern using reflected or transmitted light?
i’m not even a physicist and i started freaking out when he asked “what is light?”
If you understand quantum mechanic .no you don't
@@memesfromdeepspace1075 was this supposed to be an insult?
@@ASFReviews no ,just joke among scientis .quantum mechanick is hard you know
.
High school flash back
@@memesfromdeepspace1075 really? quantum mechanics is hard? _I never knew that!_
"Do not try to eat the laser."
Ohh... you're *not* supposed to do that my throat is on fire.
For the full colored holograms instead of using 3 LEDs you should be able to use a Xenon arc lamp bc it's both a point light source & has the entire visible color spectrum in it at a very stable level
I love how the thumbnail boasts "Rainbow Holograms" but he keeps correcting it in the video 🤣🤣
Thanks for being one of the people that warns about the terrible effects of eating lasers, we need more people like you.
The water analogy for the double slit experiment is actually amazing, I can't believe I've never heard it before.
I can't believe you haven't either... It's literally the first thing every highschool teacher says when they're teaching the double slit experiment
"When everything is lined up, the spot on the wall could be complete darkness: Real-life lightsaber
_Hacksmith entered the chat..._
Yay ever since geko tape, I’ve been waiting for this.
The first time I saw these was in an art museum, I found the images they used kind of uninspiring but the visual effect was incredible and really stuck with me. I was really excited to see this video, thank you
2:08 "You may have heard of the double slid experiment"
I've DONE the double slid experiment and it's amazing. Light interference is cool.
I remember doing it with a laser pointer, fine hair comb and a piece of paper. My mind was blown.
*slit
Stopped being amazing to me after my idk 4th physics course that covered it, I just get annoyed no whenever I hear it haha
my school didn't even touch light as a subject
I have a Spiderman vs Venom hologram card from back when I collected Marvel cards and to this day its still the coolest and most detailed hologram I've ever seen. I had absolutely no idea how they were made though, thats amazing.
I gotta say, your friend has some really nicely painted necrons! (Even if I’ve only seen one)
:)
Funny video !
WOW! back in the early 80s, I tried doing this, but the problem I had was where I lived.
I had to build a large vibration table, which was a 6 foot square sandbox on inner tubes partially filled with air. Even tho I waited till late at night, the semis and trains in the area caused so much vibration. But even without traffic, the GM plant ran 24/7 pounding those huge presses that never ended. Needless to say, my results were terrible.
My HE/NE laser was also a problem, when you turned it on, you had to wait for the beam to stabilize. Once everything was ready, I would open the exit for the beam, as the tube was in a box to block unwanted light from the tube spoiling the results.
After many rolls of film being exposed and developed, I would get a few prints worth selling, but not enough to make it pay for itself. I still have lenses, mirrors and prisms for it, but no prints remain, my picture album disappeared years ago.
Is there a market for holograms anymore? I used to sell my best stuff to people with open minds and liked to trip! I don't know anyone like that anymore.
Wait, other countries dont have Smarties and only M&Ms!?
I forgot about smarties, the chocolate and whatever the other is
Never heard of them here in Brazil, don't think they sell on South America
I'm pretty sure Smarties are something entirely different in the USA. At the very least, I've never heard of Smarties when referring to chocolate. In the USA, Smarties are basically a better version of Sweet Tarts
smarties in the US is what rockets are here, they changed the name to rockets because smarties was already a popular candy
@Ga Taca We have Smarties in Germany
UK is not THAT special
Come to Saint Petersburg, there is a great optics museum here. There's a lot of amazing holograms, including the first ones
Отличный музей, тоже сразу вспомнил его.
I like that you took the time for a light 101 before jumping into the actual content. Very educational, you're great
Just use triangular prisms to add lasers on top of each other using total internal reflection.
So basically a triangular prism used to join light back rather than split it?
Good thought.
Using a triangular prism requires much greater precision in alignment than the optical cube used in the video. Those cubes are actually quality control rejects from DLP projectors used to combine the RGB channels into a single image. It's basically mated dichroic mirrors and only requires you to get the sources squared up to the cube and then match the distances.
@@lev7509 that's not what I thought actually, but it might work too.
@@dustinbrueggemann1875 Actually what I'm trying to describe is much more closer to how that optical cube works. You just add lasers with the total internal reflection and add lasers to each other using seperate prisms. The light that passes straight trough all the prisms just go unreflected and the lights from the lasers just bend 90 degrees
I applaud your ad for being straightforward with no gimmicks.
“I wanted a cheaper and easier solution” is a moto of this channel 😂
This is the coolest thing I've seen this year
Necron “borrowed from a friend”.... that’s what they all say. Lol
Amazing explanation, that's how LIGO works too! That's how we detect gravitational waves.
pretty sure those cubes are mostly slightly defective projector prisms, they are typically used to combine a red, green, and blue image into one white image. maybe you'll get the best results if you line the colors up like the projectors do. Great video
Amazing! I remember the hologram craze late 80’s. That you can do this now at home is stunning. Thanks
Thank you for this video! It was informative and easy to understand.
In February I tried to look into this exact topic (one of my hobbies is cosplaying, and I had the idea to include custom holograms into a costume) but everything I found about how these holograms are made was either not actually about holograms, or scientific papers that my art graduate brain could not comprehend, so I'm not even sure it really was about this.
"Opal Hologram" Would be cool if you could come up with a way to make a hologram in an Opal. :)
Another fun holographic project is to create specular holograms, which don't require lazers or holographic film - just a shiny surface that light can glint off of and some kind of computer-controller means of scribing the surface. They're related to scratch holograms but have a much wider viewing angle without the hologram collapsing and distorting.
My great uncle was one of the creators of the holograms, he set many things on fire and died before I met him, but I have been wanting to know how he did it,, THANKS FOR THE VIDEO
I've always wondered how these were made. Thanks for this, very interesting!
I've been spending weeks trying to see how these holograms are made and this video very clearly explains everything! Thank you 😊 👍
Exceptional video, I love that you actually explain the process from a very fundamental level.
I remember doing this when I was in high school, while on a vacation program at a physics research lab. It blew my mind. This brings back great memories!
Haha nerdy as hell, but I'm jealous!
This is fantasically fascinating! I have always been so fascinated by holograms! This was incredibly insightful and useful for me thank you so much!
Why does the reaction stop after initial exposure? Why doesn't it all become black when exposed to light?
If initially light exposure causes polymerization, why do the unpolymerized areas not polymerize once you turn on the light in the room?
17:25
@@nerdy1701 but he just says it polymerizes more in one location. Is that to mean that it all polymerizes anyways?
@@spookywizard4980 Well, maybe all the areas are actually polymerised, but they just polymerise differently. Like you can make a few long chains vs a lot of short chains out of the same number of monomers.
@@sasjadevries yeah that makes sense.
@@spookywizard4980 BTW, Ben Krasnow from yt-channel "Applied Science, described something similar in the latest video on his channel (it's about silicon etching).
He was varying the amperage to etch different densities of porous silicon. He had this effect that as soon as a piece of silicon got etched, the dopants of the silicon dissolved and without dopants that part of silicon stopped being conductive and the etching stopped for that region.
And he got something very hologram-like.
3:00 - Bravo. That's one of the best double slit animations I've ever seen. Everyone does this, but you did it WELL. Nice work.
"In one smooth motion the black card is picked up, and the beam is allowed to strike the setup..."
I think that would be the moment when my cat jumped on the table, and knocked over the object with his paw ;-)
Thanks for explaining how holograms are made. In the 80's I went to an exhibition of all kind of holographic material. I always wondered how they were made. You could buy holograms, but I was unsure about the type of light that was needed to view the hologram. So I did not buy anything.
Just one bright narrow angle halogen lamp angled down onto it at 45 degrees would work.
i'm excited for the holo-chocolate, sounds like an amazing gift idea!
Your animations are really good, they make light almost understandable. Also you have nice hands.
I work with a guy who used to have the largest holographic setup in europe during the 80s. Under his lab there is a black room with a couple tons concrete block on top of sand. I've seen some of the holograms he used to devellope, the result is really amazing, so precise
I continue to be amazed of how versatile and smart you are! Not only you do this amazing stuff but you also do it in different areas!
*”Making Full color holograms!”*
Me who is colorblind:
**sad colorblind noises**
Btw I don’t see in black and white i just can’t see the difference between green and red, apparently they both look yellow to me
@@melasintesi2126 They make glasses that enhance the red/green spectrum and help color blind people see these colors. They're not real expensive, ask an eye doctor if they have a pair you could test before you buy?
@@melasintesi2126 I forgot the name for back and white color blindness I know there are tons of names.
@@ShamanNaoYuki Yeah I’ve tried them however they work but they don’t let me see colors, they just let me distinguish between them.
@@samthewizzy yeah it’s called achromatopsia, however it is an incredibly rare condition l only 1 in 30,000 people have it.
It's amazing that the film captures not only intensity, but also wavelength, phase, and perspective! Next you're going to tell me it captures polarization as well ....
I remember seeing these in an aquarium in the Peak District and loved them, they look splendid!
Thank you, I learned a few things from this (including the thing about embossed holograms and chocolate, which was awesome!)
The only thing I didn't learn was HOW holograms work. Nobody has ever been able to explain to me why it is that recording the interference pattern "works in reverse somehow" when viewing to re-create a 3D image - something that seems to me by no means intuitively obvious. Is it because it's too complicated to explain easily? I suppose I can go and search for it online, but I was just curious as to why it's never fully covered.
I've seen *amazing* holograms at Technical Museum in Prague. they were also quite big, sharp, completly opaque, and had various optical stuff in frame, which resulted what looked like tinted window rather than some image.
Over 20 years ago the mall where I lived sold huge hologram pictures, sharp and clear. As a child (and even now apparently) holograms fascinated me. I guess it never took off for the majority, as the store closed, but I'd spend hours in there just looking-one picture, a man with his mouth wide open and a tiny dentist on his tooth, another a side split image of a head with the musculature anatomy, then turning it, you could see the brain all so real it looked as if you could touch it.
Let me reiterate ! Best SCIENCE channel on YT... not only chem or BIO... SCIENCE !!
Where I used to work (quite a while ago) we used water cooled argon lasers, the tables were drilled plate steel raised up on cinder blocks (breeze blocks) vibration-insulated by motorcycle inner tubes!
The beam splitters were made of opical quality calcite (which has double refraction). The lasers were housed in separate rooms with the light directed through holes drilled in the wall, to ensure full sharp quality, everything was switched on, lined up then the room vacated and allowed to stabilise for a while then the actual shots were taken remotely.
Red lights would flash in the other departments as a signal for employess not to stamp or slam any doors!
3:48
"Short Wavelenghts"
Great video! I've made many holograms using that kit and love it.
The main problem I had to overcome was micro-changes in battery cell voltage (creating a change in the wavelength of the laser as time progresses), thus ruining the end hologram.
Bench-top power supply fixed that! 👍
Could you post a diagram of that setup?
This is a fun experiment. With Christmas coming around I think I could be able to find some of those laser star shower devices for sale at my local stores, will have to keep an eye out and possibly make my own holograms!
Looking forward for a volumetric display instruction
OMG I was wondering if I can do that at home. But I'll start with diffraction gratings.
1:32 the third one is Rep's masterpiece :)
I bought the Litiholo kit but not a single one of their plates developed. In the end I used the laser and the frames from litiholo, but with a different set of plates (which had to be developed following exposure) and got some really great holograms.
I had holographic stickers when I was a child. The concept has not changed much.
When you wanna make holograms but have ADHD
This is the coolest shit I've ever seen. I've always wanted to know how these things work.
At the beginning of the video, that hologram at 0:25 reminded me of the "The Room" game series, when you look through the lenses and stuff
oh i totally get what you mean
The moiré patterns that forms with the red wave graphics is really hard on the eyes.
i’m really confused with the title still but ik this video finna be lit
Tried to buy it, but for the 40$ pack it's 60$ of shipping to get it here in europe 😅
Also can't find anything on aliexpress :/
It’d be cool to see little intricate origami in a hologram
Imagine taking a bite of chocolate with smarties on it and realising it's actually just imprinted with a coloured hologram.
How to make hologram projector?
You made recorder in this video.
I want projector part
so you're telling me that the holographic foil on my yu-gi-oh cards is literally because it's technically speaking a hologram... i always thought they just called it holographic foil so that it sounds cooler
I feel like this is one of those things like VR. Something thats been around for ages and never got picked up but will probably be a hype in a few years when the tech has evolved enough.
That was very cool. Can't wait to see where you go with it next :D
I know his is primitive, but here's a thought.
Imagine making a movie with this hologram film, it would be like being in the movie since you can view the film in
What you're suggesting wouldn't be feasible. Filming on holographic film would still require you to be viewing the holographic surface directly for the image's perspective to change with you. Projecting an image through a hologram would only create a 2D projection of that specific viewing angle. You'd have to adjust the angle of the lightsource to adjust the projection's view angle.
@@dustinbrueggemann1875 Theoretically you could do a rotoscoped stop motion kind of like clay-mation with each hologram displayed for a fraction of a second but it'd be an insane amount of work and the film would take up a lot of room.
I guess that's feasible only after someone invented a hologram display (which would itself be amazing)
Very short animations are possible where a few frames are captured then to see the effect, you hold the (correctly lit) hologram and tilt it from side to side.
I have a small one of a hot air ballon flying through a valley.
7:24 Tony stark did it in a CAVE with a BOX OF SCRAPS....😅🤓
Baseball cards use to have them back in the 90s. One set had every team logo as holograms
Fantastic video. As a kid I was always fascinated with lasers and holograms.
more like "how to perform actual magic"
jesus how smart is this man😭
those necrons have some pretty advanced hologram tech as i've heard
Love the ttrpg dice & minis!
Glad to find your video channel. I have not heard much about Holograms for decades. I was a Holographer back in the early eighties. I went back to college to study optics and electrical engineering to be better at holos but by the time I graduated film had become unattainable. My old holos have all deterioated over time. I think I will start over now with the polymers.
such depth and detail and you are so good at creating videos. Thank you so much
3:05, I think it's actually the nodes that appear darker, and the antinodes that appear brighter. It's where peaks and troughs cancel that you get no light. Where peaks line with peaks AND where troughs line with trophs, you get bright
This is like super super cool because it means you could potentially make a 3D image in color
There use to be hobby groups for holograms back in the early 90's. Most of their kits were built out of grocery store cashier barcode readers.
Wow, you are the first RUclipsr or content creator in general who warns about lasers in the video. This whole time I've been damaging my eye without knowing.
there's a book called "the holographic universe" and they discuss the idea that our memories are stored on the local level in our genetics, not our brain (hence the concept of "past lives" being "remembered".) The cool part is how they explain this with the event that happened when someone accidentally broke a glass plate of a hologram containing a battleship. they realized when they illuminated the glass shards with a laser (the same wavelength used to create it) they saw the ENTIRE battleship in every single shard, no matter how small. that is what I call simply amazing
Would love to learn more about that silver halide print process that you showed the print of because they look beautiful
Light is what brightens your day. Or night.
One of my favorite videos of yours! Awesome stuff man, thank you!
THANK YOU Dr. Tung H. Jeong and Alex (Integraf) especially and thank you Dinesh as well as Practical Holography
This reminds me of playing Spyro on my nintendo ds, the OG nintendo ds. Had quests that used lasers and mirrors to combine colors or split them.
If you want a more pure puzzle game like that, there's Prelogate on Steam.