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Red laser dim

dominik015

New member
Joined
Sep 7, 2022
Messages
1
Points
1
Hi guys, I bought this Showtec laser projector for very cheap, but the red diode isnt working very well and im trying to fix it. Its a 100mW module
The red laser is very dim... I replaced the cables and resistor. it still doesn't work that well, any tips? At how many volts should it run..?

Schermafbeelding 2022-09-07 om 19.13.19.pngSchermafbeelding 2022-09-07 om 19.13.33.pngSchermafbeelding 2022-09-07 om 19.14.48.png
 



gazer101

Well-known member
Joined
Feb 23, 2020
Messages
704
Points
63
Are you running the laser diode at ~2.5V (or whatever it says on the spec sheet for that diode)?

Can you try hooking up an ammeter in series with the diode to see how much current it draws? Are you sure it is supposed to be red and not infrared (which is far less visible)?

If it draws a fair bit of current (say more than 100mA) and is still that weak, the diode is damaged and needs to be replaced
 




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