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Are there diodes out that are 473nm "blue" yet?

Stoobey

Stoobey

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I was just curious is they make diodes at 473nm yet? or is this not possible? Does anybody here make high powered portable blue lasers here? like 100mw plus?
 





No.. "true blue" commercially available diodes go up to around 455-460nm. Close, but not quite 473nm. These true blue diodes are quite expensive, though. It's highly unlikely that you'll see them in hobbyist builds. Longer blue wavelengths and even green diodes are already being tested and prepared for manufacture, and green diodes have been run for up to 5000 hours before death.
 
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Yea it will be nice when you can get almost any color with just a diode, and when the diode prices drop down. Most of the high powered green lasers out that use the crystals use 1w+ infrared diodes. I can wait to see somebody make a BR or 460nm, 473nm thats 1watt or a green 1watt with just a diode. that will be sick.
 
I have a feeling that diodes will never be able to replace DPSS. The beam quality just can't be beat for the cost.
 
Meatball said:
I have a feeling that diodes will never be able to replace DPSS. The beam quality just can't be beat for the cost.
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Perhaps now. Do bear in mind technology is always improving. Who knows what the future holds for us :)
 
In the future, we'll just shine the laser into a photodetector and the computer will engineer a GRIN lens and print it out on your desktop 3D variable density printer and all we'll have to do is glue it to the front of the diode. :beer:
 
Hemlock_Mike said:
There are some 50 mW 455 nM around these parts at ONLY $688 per each !!!!

HMike
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Sounds like an insane amount for a diode, but frankly, it isnt even that far away from 50 mW 473 dpss units on the market. Considering the smaller form factor, it might even be worthwhile.

On the other hand, now is not the time to buy any of these. With the laser projectors coming rapidly, expect prices to drop in the short run. I wouldnt be that surprised to see these diodes on the market for bluray-like prices within just a few years.

I suppose we will be ripping apart projectors for the diodes as we are bluray drives right now soon enough. The diodes might not be 473, but the 440-450 range would be very nice to have as diodes, and fill the gap in true-RGB projection on a budget.
 
Benm said:
Sounds like an insane amount for a diode, but frankly, it isnt even that far away from 50 mW 473 dpss units on the market. Considering the smaller form factor, it might even be worthwhile.

On the other hand, now is not the time to buy any of these. With the laser projectors coming rapidly, expect prices to drop in the short run. I wouldnt be that surprised to see these diodes on the market for bluray-like prices within just a few years.

I suppose we will be ripping apart projectors for the diodes as we are bluray drives right now soon enough. The diodes might not be 473, but the 440-450 range would be very nice to have as diodes, and fill the gap in true-RGB projection on a budget.
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Ha ha! For sure...

As long as the projectors are priced cheap enough, they will get ripped apart!
 
Nichia have them in their product catalog, but are in "engineering sample" status (they mean probably "still prototyping") ..... and i don't dare to imagine how much they can ask you for a sample (probably 1500 or 2000 $, LOL)

"aquamarine" 473nm diode ..... and "sky blue" 488nm diode .....
 
Why would you even want to rip apart a FULL RGB laser assembly??? That's STUPID!!! :p
 
I'd rip apart a laser projector for the RGB assy, but I dunno if I'd take apart the RGB assy., all the hard work was done already!
 
HIMNL9 said:
Nichia have them in their product catalog, but are in "engineering sample" status (they mean probably "still prototyping") ..... and i don't dare to imagine how much they can ask you for a sample (probably 1500 or 2000 $, LOL)

"aquamarine" 473nm diode ..... and "sky blue" 488nm diode .....
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Wow! I've heard of 450 nm diodes before, but I didn't know there were actual 473 nm diodes. Technology really is advancing fast.
 
x90z75ek said:
Wow! I've heard of 450 nm diodes before, but I didn't know there were actual 473 nm diodes. Technology really is advancing fast.
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Diodes have been made in the entire wavelength range from below 380nm (UV) up to 531nm (very green).

And they're very pretty colors. Those blues and greens are very nice. :D
 
pullbangdead said:
Diodes have been made in the entire wavelength range from below 380nm (UV) up to 531nm (very green).

Really!? I've never heard about most of these.
Does anyone on this forum have one of these diodes? (Except the Blu-ray)
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