Blue Lasers vs. Red Lasers: Which are Better?
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- Опубликовано: 13 окт 2024
- Here I compare powerful red and blue lasers, showing the pros and cons of each. Both make great burning lasers with enough power behind them.
I built the 1W blue laser in the video, but the 200mW red laser was bought from here: • 200mW Focusable Red La...
I originally wasn't going to make this video, but I had a lot of requests for it so I went ahead and made it. Y'all are too lazy to watch the other two videos in the series and make a conclusion between red and blue! ;)
I used fog to bring out the beams in this video.
Watch for videos of my new near 2W green laser coming soon...and also maybe orange and yellow lasers.
Check out laserpointerfor... to learn more about laser pointers, lasers, and laser pointer companies! I have been a member there for 8 years, and have received a bunch of help from the knowledgeable members there! 
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The >2W lasers are a more recent addition to the laser world, at the time I made this video 2W was the highest they came. I actually have plans for a 3W+ handheld blue laser video that should be posted in a month.
@upbeatanime Taking a direct hit in the eye isn't the only way to get damage. With lasers this strong, just staring at the dot will also damage the eyes. Another danger is pointing a laser around and hitting something shiny, that is a very easy way to cause blindness.
@cvbcbcmv Actually that's exactly what I do. It is VERY hard to see though. You can get multi-wavelength blocking glasses, but they aren't cheap.
10 years later, anything to say?
I commend you for the glasses reminder.
I was severely disappointed that the lasers didn't reflect of the mirror like in games and movies at 1:22.
Try harder next time, physics.
+Adam Langley Yes they did.
💎MJ_Craft💀
Well, they did, but the solid beam didn't, just the point where it hits an object.
it did, just the reflection of the beam is just as bright as the original beam and kinda got all illusion-y on you
Baron Von T. My 35 mw green does
@NLhardcorebobNL You are thinking of an opaque object. A red colored pair of goggles is red because red light passes through. Green and blue light are absorbed and turned into heat inside the goggles.
@NLhardcorebobNL In general, red glasses block green and blue (red can pass through)
@Emiins It's just how the high powered blue laser diodes are designed, a good single mode blue laser diode will have better divergence than red.
@rageagainstthebath I'm comparing HOBBY LEVEL lasers here, not laboratory equipment. RUclipsrs who search for "lasers" are only interested in burning shit. If you want technical info, look up "Sam's Laser FAQ".
I don't quite understand what you are saying about Blu-Ray players, but the 445nm laser diodes here are not used in optical drives, they are used in projectors.
On the hobby market, there are only a few laser diodes to chose from, that's why wavelength will "determine" beam specs.
@MultiJohnnyBravo yes, I have a 40W IR module but it actually isn't as cool as I'd expect (terrible beam specs)
Definitely need eye protection. Unexpected reflections are a real problem, even with the 5mw pointers.
I hit my eye pointing at an aluminum ballon
@upbeatanime They aren't $15, but both Dragon Lasers and Wicked Lasers offer good goggles to protect 650nm-660nm (red lasers). Wicked may take forever to ship though.
For green and blue lasers I personally use the $6 goggles from FocalPrice. They work better than my $55 certified goggles!
@nikokapo because it's you that made the bet...I will. Give me a month or so to make an appropriate video
@Chaokid9 ive compared green to red and green to blue, but not red to blue.
Could you test yellow and purple next? I've seen some of those for 2000$ and I wonder if the price actually reflects its power!
Dude if u see a video of someone testing it please send me the link
How about a video comparing blue (445nm) to blue/violet (405nm) lasers? That would be GREAT!!!
this video is just as informative as one can be. Thanks, didn't expect a comparison of such a high quality
@upbeatanime btw I think O-like.com may have cheap goggles for red lasers that work well.
I should point out that the range of the laser has to do with rayleigh scattering primarily. Blue light is attenuated at shorter ranges than red light in an atmosphere. Therefore red lasers have greater range even though they possess less energy.
9 years later and still useful 👍
@MrEestipoiss Depends on what you want you want to use it for. Blue laser is the one with the shortest wave lenght and highest frequency. In short it means it got the highest energy value and is potentially also the "strongest" one. In the end though it matters a lot what kind of W you can pump in to it so you can get green laser to do more dmg then a blue
I just ordered a 50mW 405nm Blue Laser from Laser Pointer Pro for $25. I cant wait to get it.
Thanks for putting these out in HD!
Styropyro, you just answered my millions of questions!!!!
Thank you for informative video
But how long those glasses protect?
You can always add a collimation lens on your blue laser to focus the beam better.
I've always thought red lasers were the best. But could you compare then to violet lasers?
Why are the blue laser beams rectangular?
EnigmaHood It's the 3 element lens installed. Some lenses for blue offer less wide, more powerful beams and more powerful dot. But most companies use 3 element cause they are cheap.
EnigmaHood And also most blue lasers are multimode. Which also makes the beam rectangular and more wide. Lower powered blue laser pens offer single mode. Which means the dot is smaller and beam is smaller and makes it more circular.
pokerman405 So it's a manufacturing issue. I figured as much, thanks for the clarification.
actually, blue and red have almost the same difference between the most visible wavelength of light, 552-553nm. I believe blue lasers are brighter because it refracts off air more than lower wavelengths do. That's why the sky is blue, because more blue light refracts into your eye than say red light or green light.
The safety glasses I have look like the red ones in your video. I am reluctant to use my 1 watt 405nm laser with those ones. I ordered an OD5+ Eagle Pair. I am afraid that with those cheap ones, you get what you pay for and if that is the case it would be bad!! I got my cheap ones from eBay and that was even buy one get one free. Maybe they would be OK with my green laser that is not strong enough to burn anything? It is one of those generic "military" lasers that sell for around $10 or less and is supposedly good for 10 miles distance.
Oh god, I've seen Star Wars tonight and I did really expect the lasers to make this lighsaber noise when they crossed :-D
When I use my laser i do it where i know that no harm will come to anyone. When friends ask to see it i always warn them of the inherent chances of blindness or severe retinal damage along with migraine headaches that may occur from looking directly into the "dot" that the laser projects onto a surface. Even with all that risk and danger i try to be safe when displaying the laser to friends, I always keep them a safe distance away from me and point it at something far off in the distance.
i bought 4 1w lasers last week! 2 blues, a red, and a green! lol its weird... they are the same exact laser, but a different color beam, and half use two 16340s, and the others use a 18650... the red and greed used 18650s...
Violet lasers are almost invisible, violet is at the edge of what the human eye can detect. It almost has a the same beam characteristics as a blue lasers (except it's violet) and it's very stable. It florescence on florescent objects like highlighters. Most high power violet lasers are found at 400-500mw, some making it into the class IV range.. It'll cost about the same to make a strong violet laser as to make a strong blue one. Violet lasers can be found in low powers. Goggles are required
I want to get into lasers. Do you have a recommendation for a set up (laser, safety equipment, etc.) for beginners on a budget? I have about $100 that I can spend, and I want something that will be amusing to burn stuff with. That being said, I still need the right kind of safety glasses. I don't know much about lasers so I'm not sure what I need.
I have a question? Was your room super foggy in order to make it possible to see the beam?
@Emiins It is not because of diffraction, it is rather because of the optics associated with the laser diode itself. See, the laser diode emits light at some angles and that's why it needs lenses to make it quasi-parallel (Gaussian in fact, but that's a long story). The movie uploader says it's because there is very poor choice of "hobby" lasers on the market, like he was living in soviet russia. In fact, it could be improved with two extra lenses but hey, it's easier to blame the diode, right?
Great video! I didn't really want a red laser because red seems boring. I also don't want to spend a lot of money on a blue laser. But now this vid gave me the inspiration to buy a nice red laser. What do you think of the wicked laser 100w nano?
Check out www.lazerpoint.com I got a really good 2000mw blue laser for only 125 US dollars
@upbeatanime You can be seriously injured by small amounts of light that are reflected sometimes from not even very shiny surfaces. A 2 watt laser will will completely destroy your vision with a direct hit, but even indirect light will make you go blind over time. This is not in the same realm with a 5mW laser pointer. A set of glasses are comparatively cheap.
Just wanna say there is a safe blue Laser called the Spyder III Arctic from WickedLasers, it is a 1mW (or 1.4mW) Laser with low Power mode and Safety Lens which makes it almost harmless and it has been Out for like 3 Years now i think.
Anyways nice Video :P
Styro, you see, there definitely are truly safe blue lasers on the market. Look at DX. 405's under $20 and 473's over $400 :) 445 - yes, there are no low-powered 445's because their only manufacturer - Nichia - produces them for 600-1200 mW output only.
It depends on the power of the laser. According to the classification of lasers, you have to wear safety goggles for any laser past 5 mw, since direct exposure can permanently damage your eyes (like if the beam went into your eye). For anything past 500 mw, just looking at diffuse reflections, like off a wall or something, can damage your eye. I have never seen a laser that just looking at the BEAM can damage your eye, but, I guess if you had a laser powerful enough, it could.
woohooo been waiting for this long time !! long life to styropyro !!
@DJhellray No, anything above 5mW if harmful and you have to have Laser Protection. Sunglasses will not work at all. Buy ones off Ebay.
@lman638 I found out its a professional laser used for disco's and such. The manufacurers purposly made it unable to burn
im really interested in purple lasers. plz make a vid. comparing those
aw right i was talking about the king of lasers you plug into the wall and genral diode output , you can get an 8 wall plug in one for a good price these days , i forgot to say i enjoyed your video, thanks agein
@NLhardcorebobNL sort of, but the other way around. red goggles let red through them, so they dont protect against that. same with other colors. they protect against the opposite color.
Nice Job Styropyro! Keep it up!
Trolling? no. There are blue lasers, and there are violet lasers. Blue lasers have a 445nm wavelength (most blue lasers) and violet lasers have a wavelength of 405 nm. You are correct about the part where violet lasers appear to be blue sometimes, but know that violet and blue lasers are 2 different things.
You just gained a new subscriber!
It's like everything explodes in your video, plastic, glass (or whatever the shiny thing was at 0:59), and even paper.
How about a video of red, blue, and green lasers?
serriously now can you get one of those spider3 lasers to shine into a mirror that's mounted in front of it that reflects light right back into it? im curious how strong the beam of light gets :)
And make a video off course :)
For me those spider3's are way to expensive to own one.
at 50mw you can pop ballon, with focusable maybe 30mw for black ballon.... but for better fun (engraving wood etc.) at least 200mw
@DJhellray Yes, I know. 300 mW is 295 mW more than 5mW, so yes it can blind you forever
@DJhellray Yes, when you have laser glasses on. Go to Priceangels(dot)com and type Anti-Green, and chose the red glasses. Those will protect you from blue and green lasers, but NOT red lasers.
so what is this about the safety goggles? Do you actually have to point them in the general direction of the eye or can you damage your vision even if you are pointing the laser the other direction? can you get eye damage just by looking at the beam?
at 1:20, the purpose of the laser put there are to detect someone is in the toilet, so we can switch on our candid camera :)
Would a blue laser or a red laser be better for pointing at stars and still having the beam be visible?
I would recommend a green one. Check around amazon for some
Sweet, thanks. I don't need a lightsaber, just something to catch the air. Thanks :)
@styropyro Sorry for the late reply, but that doesn't really make sense, in some way. Something that is blue absorbs all other colors, but reflects blue. How does a red pair of glasses allow other colors to pass through?
I'm not saying you're wrong, I'm just curious.
Ever see that Episode of Friends where Phoebe's cousin comes to visit, and his hobbies are Burning stuff ?
What can a 100mW blue laser burn/do?
Is the beam of it clearly vissible at night and or daylight?
Thx, C.
Whats up with the color of the glasses and the range it protects?
Is it as simple as: red glasses protect against red lasers?
1:18 Oh Uh I don't think that's such a good idea.
There are interesting arguments for both.
You see...
Blue light is higher energy than red light.
However blue light scatters quicker in the atmosphere.
This is why the sky is blue :)
So if you were in space, you'd probably want blue lasers.
But in air, go with red lasers for now ;D
Nice power meter at 0:32 so where did you get it?
have you tried putting a hand in one of those lasers? just asking if it burns badly
It's not going to be here for the 4th of July, did you see what peple say? It takes 5 to 7 months to arrive.
Actually, with sufficient wattage, the molecules of the air should absorb and re-emit parts of the laser light.
next video: Darth Vader with lightsaber vs styropyro with 500 mW red laser
PLEASE !!!
Red laser: Blue, come to the dark side.
Blue laser: No
*Star Wars reference*
Do you wear two laser safety goggles at once since you have two laser working at the same time?
Jedi VS Sith, thats all I could think about during this video!
Blue lasers are better for up close burning only because they are usually available at greater power levels. So, for equal power levels, mw to mw, which is better at up close burning?
So, can regular sunglasses be enough protection for a 200mW red laser? What eye gear would you recommend?
Hello, I would like one that is good for burning things (preferably for long distance burning) and not dangerous for my eyes, which color and how powerful should it be?
hey you yes you the one that make this vid .where can i buy this laser or just you wanna to show up to us?
Question, what happens if your hand accidentaly like, went in front of the lazer? Would it burn?
Hey styropyro, are you going to get the Spyder 3 krypton?
Thank you. I will be ordering a blue laser because I want to be burning things close up.
the problem is making them solid like lightsabers, lightsabers are said to be possible, however we cant yet make them cause we have to solidy the light and to keep the light from going off forever and ever into the distance, however we have found a possible solution, and that is heated plasma
:( I wish one didn't have to wear goggles to enjoy the lightsaber categories. How much do they dim the view?
Which eye goggles have you used? the blue goggles are against red rays and the red goggles are against blue rays...
I don't understand. In physics im studying that less 'nm' means less difraction.
So why does your blue laser have a divergent beam compared to the red?
What's a pyromaniac? It's both ironic and unfortunate that the easier to find and probably better blue laser pointers are about 5 times more expensive than the dimmer and probably worse red laser pointers.
5 mW blue lasers are now available.
For a handheld laser? definitely get a blue or green one. For industrial-strength immobile laser? red one.
those just take the "fun" to an expert level :O
Prices definitely have changed i got a blue burning laser for 10 bicks and a 1watt laser for 70.
Andrew V yes they have
Andrew V i got 3w for barely 200$
1:43 you scared 😂
You did not tell that blue lasers can make glowing stuff go green. Try and see.
@styropyro so are the orange ones that you sometimes show good for all three colors?
what goggles should i buy? i have a 200 mW red,and a 100 mW green.
what do you recomend?
What red laser did you use in the video, and where can i buy one?
So, a 200mW red is better at distance burning than a 1W blue laser?
a 50mW green laser can't burn much unless its focusable, It could probably just pop a black balloon if its not focusable, ( in 5-10 seconds) and that's about it.
@rageagainstthebath I do like to show off my "toys", that's what got me millions of views and a RUclips partnership.
How about the Lazerer Rifle. It's only 150 bucks, but way over 1W :D
@benharrison31 yabtd