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Can anyone help identify this cheap laser?

cosmonaut

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My school bought a couple of these cheap green lasers for our observatory which bear no mark of a manufacturer. Someone happened to break the driver off of the diode and now we have no idea where it is. I was thinking of putting in a new driver I had laying around, but I don’t even know the pinout of this diode and don’t want to break it. Does anyone know anything about this laser?

81DEE276-F85E-42F0-B071-D190C79345F3.jpeg
 



GSS

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Do you have an idea where the school bought them from? It's a weird host and looks a bit on the older side when 532's first came out..
Unless it's marked as a 520 your better off getting some 301's for about $5 a piece.
A front pic would help also as i'm not sure if I see a focus knob or aluminum style ribbed module that common with cheaper pen units.
 
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cosmonaut

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Nope, it's not a focuser knob. Just a little screw-on ribbed heatsink-looking thing. I think I might gat the department to either invest in some nicer 532's or even 520's because those might work better in the cold at night. I do happen to have some old pen drivers though, just laying around that should work.
 

Lifetime17

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Hi,
Looks like the pin out is this in the pic. But yours does not have case pin or it was broken off.
I just had another look there is a case pin loos bent that why I didn't see it. Anyway the pinout is still the same as in the pic . The case pin is not used .


Rich:)
 

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paul1598419

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That looks like the case pin broke off the back of the diode. These do use a case positive 808nm pump diode. They are usually driven ~600 mA, give or take. If the case pin is missing you can just use the case, itself, as the positive connection.
 

Lifetime17

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Hi,
Paul,
Look at the pic really good , I thought the case pin broke off also. Expand the pic the largest you can , it almost look alike the pin is bent over. Its hard to tell from his pic.
Rich:)
 

Lifetime17

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Hi Paul,
I was asking you if the case pin looks missing or if it s just bent. Thats why I said look closely at the picture.
Thank You.
Rich:)
 

Shotgundrums

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Sometimes I think we’re all missing our case pin🤣. I see one in the first pic.
SGD🍻
 

Lifetime17

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Hi Josh,
Thank You I thought so , it looks bent to the point to were it broken off . I exploded the pic to see it better.
Thanks buddy

Rich:)
 

Lifetime17

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Hi Red
Thank you buddy for clarifying that, I thought so to , though my eyes were playing with me
Rich:)
 




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