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Found Cyan Laser diodes !

loreadarkshade said:
I believe it was the XJ-A141 which these cyan diodes came from

Alien laser posted on May 16th:
4 days ago i received 1 = XJ-F210WN Brand new 0.0 hrs i was planing to extract diodes but i wife liked it so i stored it away.
So i ordered 3 more brand new XJ-M146 + XJ-A141 + One more XJ-F210WN
I will extract diodes from XJ-M146 + XJ-A141 + XJ-F210WN when the arrive next week

The Laser Projectors Diode List

Now to find the diodes you have to do the same way as @loreadarkshade , That is, rely on Ebay, Amazon [Seattle] Or on Alibaba or giants that have warehouse funds. But a Nubm44 V2 always cuts a dirty figure, it looks like a cufflink to put on the cuffs of shirts instead of the classic buttons Oh...
laserpointerforums.com

Alien laser PM'd me May 30, 2024:
"i purchased it brand new from a company in November /December i will see if i can find the record i try to look but the erased the record i will check if i have a pic maybe of the projector it was around $1200 + tax"

Since the OP's pictures look like the "green slim" array, it rules out the XJ-M146 and XJ-F210WN
I extracted one of these XJ-A141 projectors and it also had 23x diodes, one hole was unpopulated just like in the photos above, but I never noticed if they were 462nm so I will check later and report back to confirm
Click to expand...
Found this listing which says it's a block for the 141 but looks to be the same as the 140. The marking of LSD 25 is the same as the 140s that I pulled years ago, unless the listing is wrong or some had the 462 and some didn't?
www.ebay.ca

Genuine Casio Laser/LED Bulb LSD-25 for Casio Projector XJ-A141 Under 2000 Hours | eBay

Find many great new & used options and get the best deals for Genuine Casio Laser/LED Bulb LSD-25 for Casio Projector XJ-A141 Under 2000 Hours at the best online prices at eBay! Free shipping for many products!
www.ebay.ca
 





Alien Laser confirmed with me it was the XJ-A141:
"I can not upload images but yes that's the projector Casio XJ-A141 DLP Projector"

I also extracted diodes from this projector as seen here:

The Laser Projectors Diode List

A list of laser projectors and which laser diodes they contain. Only rows with the CONFIRMED checkbox are 100% accurate. Thank you to my good friend Darktron for contributing to this list! This thread will serve as a place for everyone to use for cheap laser diode / LD bank sourcing. Please...
laserpointerforums.com
4c579acb-874b-4c15-8a96-12c626d5d54f.jpg

I tested every single one today, they all had a wavelength of 442-450nm. The cyan color comes if you overdrive them with good heatsinking. Yes, you read that right. Poor heatsinking will allow the diode to overheat and stop lasing, preventing you from seeing the 460nm color while overdriven. With proper heatsinking, the diode can be overdrive to around 2.5A which it starts to emit the 462nm wavelength.

Here are my results in a poor heatsinking configuration:
Poor heatsinking, stops lasing after overheat0a6c367b-84bd-40ee-9a8f-9a9a778ebd50.jpg

IMG 0012.jpgIMG 0013.jpg
The diode never reached over 455nm before it stopped lasing completely after 1A

Here I am using a proper heatsink to keep the diode cool while overdriving it past 2A, where I was able to reach 458nm at 2.2A
IMG 0014.jpg50d0f780-8a61-4ea1-a265-972678aefe8f.jpg068c4e15-dd80-4ef4-af33-977ac613eb21.jpg

The fact that he was overdriving them should have been our first guess
 
M462's were a different diode though with a lasing threshold wavelength around 462nm. Link provided by jnrpop

sites.google.com

DTR's Laser Shop - M462 462nm Laser Diode

2W M462 462nm Laser Diodes This is a 5.6mm Diode Max suggested current 1.8A. For more details see testing at the bottom of listing. Out Of Stock M462 462nm Diode $50
sites.google.com sites.google.com

They were fairly common about a decade ago as a lighter blue wavelength alternative to the M140
 
He said he bought a brand new projector so it may have been a much newer version of the A141 that was released just before Casio stopped producing projectors all together a couple of years ago.
 
loreadarkshade said:
Alien Laser confirmed with me it was the XJ-A141:
"I can not upload images but yes that's the projector Casio XJ-A141 DLP Projector"

I also extracted diodes from this projector as seen here:

The Laser Projectors Diode List

A list of laser projectors and which laser diodes they contain. Only rows with the CONFIRMED checkbox are 100% accurate. Thank you to my good friend Darktron for contributing to this list! This thread will serve as a place for everyone to use for cheap laser diode / LD bank sourcing. Please...
laserpointerforums.com
View attachment 78052

I tested every single one today, they all had a wavelength of 442-450nm. The cyan color comes if you overdrive them with good heatsinking. Yes, you read that right. Poor heatsinking will allow the diode to overheat and stop lasing, preventing you from seeing the 460nm color while overdriven. With proper heatsinking, the diode can be overdrive to around 2.5A which it starts to emit the 462nm wavelength.

Here are my results in a poor heatsinking configuration:
View attachment 78053View attachment 78054

View attachment 78049View attachment 78050
The diode never reached over 455nm before it stopped lasing completely after 1A

Here I am using a proper heatsink to keep the diode cool while overdriving it past 2A, where I was able to reach 458nm at 2.2A
View attachment 78051View attachment 78055View attachment 78056

The fact that he was overdriving them should have been our first guess
Click to expand...
Appreciate the info, thanks 🍺

Our of curiosity, are there any other common blue diodes known to swing this high when overdriven?
 
I've got a NUBM07 and a NUBM0G both producing 471nm, I think they are both rated for something like 465nm at manufacturer rated currents
 
loreadarkshade said:
Oh yes! Check out my tests thread:

Blue Diodes: Green Diodes:
NUBM0A NUGM02
NUBM0C NUGM03
NUBM0E NUGM04
NUBM0F NUGM05
NUBM0G NUGM06
NUBM05 GH05C01A9G
NUBM06 GH05C01B9G
NUBM07 NDG7575
NUBM08 NDG7475
NUBM4B
NUBM42
NUBM44
NUBM46
NUBM47
NUBM49
NDB7875
NDB7A75

Look at the wavelength data as power increases
Click to expand...
That's crazy! 😮

Been playing with the NUB series for a couple of years and noticed with the 08's that when pushed the blue became lighter, but never realized there were so many others that had such a dramatic shift.

I really should have invested in a spectrometer.

Thanks for the insight and awesome graphs, very helpful. 👍🏻
 
loreadarkshade said:
I believe it was the XJ-A141 which these cyan diodes came from

Alien laser posted on May 16th:
4 days ago i received 1 = XJ-F210WN Brand new 0.0 hrs i was planing to extract diodes but i wife liked it so i stored it away.
So i ordered 3 more brand new XJ-M146 + XJ-A141 + One more XJ-F210WN
I will extract diodes from XJ-M146 + XJ-A141 + XJ-F210WN when the arrive next week

The Laser Projectors Diode List

Now to find the diodes you have to do the same way as @loreadarkshade , That is, rely on Ebay, Amazon [Seattle] Or on Alibaba or giants that have warehouse funds. But a Nubm44 V2 always cuts a dirty figure, it looks like a cufflink to put on the cuffs of shirts instead of the classic buttons Oh...
laserpointerforums.com

Alien laser PM'd me May 30, 2024:
"i purchased it brand new from a company in November /December i will see if i can find the record i try to look but the erased the record i will check if i have a pic maybe of the projector it was around $1200 + tax"

Since the OP's pictures look like the "green slim" array, it rules out the XJ-M146 and XJ-F210WN
I extracted one of these XJ-A141 projectors and it also had 23x diodes, one hole was unpopulated just like in the photos above, but I never noticed if they were 462nm so I will check later and report back to confirm
Click to expand...
Why didn't you call me? the detective 🧐
 
loreadarkshade said:
Alien Laser confirmed with me it was the XJ-A141:
"I can not upload images but yes that's the projector Casio XJ-A141 DLP Projector"

I also extracted diodes from this projector as seen here:

The Laser Projectors Diode List

A list of laser projectors and which laser diodes they contain. Only rows with the CONFIRMED checkbox are 100% accurate. Thank you to my good friend Darktron for contributing to this list! This thread will serve as a place for everyone to use for cheap laser diode / LD bank sourcing. Please...
laserpointerforums.com
View attachment 78052

I tested every single one today, they all had a wavelength of 442-450nm. The cyan color comes if you overdrive them with good heatsinking. Yes, you read that right. Poor heatsinking will allow the diode to overheat and stop lasing, preventing you from seeing the 460nm color while overdriven. With proper heatsinking, the diode can be overdrive to around 2.5A which it starts to emit the 462nm wavelength.

Here are my results in a poor heatsinking configuration:
View attachment 78053View attachment 78054

View attachment 78049View attachment 78050
The diode never reached over 455nm before it stopped lasing completely after 1A

Here I am using a proper heatsink to keep the diode cool while overdriving it past 2A, where I was able to reach 458nm at 2.2A
View attachment 78051View attachment 78055View attachment 78056

The fact that he was overdriving them should have been our first guess
Click to expand...
Forgot to ask, did you happen to notice what approx temperature is the point where the wavelength begins to drop back down whilst being over driven?

Also, how much can these diodes take before they fail?

I used to run my a140 builds at 1.2 - 1.4a iirc. Don't think I ever got close to 2A let alone beyond that.

Strange diodes 😳
 
Dusty_Lenses said:
Forgot to ask, did you happen to notice what approx temperature is the point where the wavelength begins to drop back down whilst being over driven?

Also, how much can these diodes take before they fail?

I used to run my a140 builds at 1.2 - 1.4a iirc. Don't think I ever got close to 2A let alone beyond that.

Strange diodes 😳
Click to expand...
Around 50C on the body
I haven't fully tested these yet as they aren't very popular anymore
 
loreadarkshade said:
Around 50C on the body
I haven't fully tested these yet as they aren't very popular anymore
Click to expand...
That's not bad. I was hoping it wasn't too low like in the 30's or the like.

Don't think I've ever let a handheld go anywhere near 50, so definitely worrh checking out. 🍺
 
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