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that i mean ;-)

hi, can i use a burned M140 for a test load to adjust current for working M140 ? Greetings

the driver is okay ... with a other (new M140) it works fine (output 1800mW) i test it with a lab power supply (adjustable current) Greetings

hi, a german user on ebay sells "New" M140 diodes from unused DLP. I have bought three diodes and ALL diodes does not work with 1,2A (the laserpower is betwwen 30mW and 120mW. At 1,6A the laserpower is lower than 10mW ... turning the current to 1,2A again the laser output is greter than 50mW...

hi, i need for my 808nm 500mA Laerdiode a driver circuit. Voltage 2.2V current 700mA the most ebay drivers working with max 500mA. which dirver can i using ? greetings

hi, i have builded a simple, small DPSS-Laser 700mW 808nm IR-Diode -> ND:YVO4 -> KTP -> IR-Filter Now, i try to collimate the green laser. on a simple laserpointer, there is a acrylic expanding lens, and than a collimation lens. Where can i get a expanding lens (glass) ? Greetings

Hi, i am searching for a analog sensor to build a simple power meter with a µC. photodiode type or thermo type - no matter i have tried with a BPW21R, but this diode recognize difference between a 20mW and a 60mW Laserpointer. ideas

yes .. no dual boot ... why ? pffffff ;) on a raspberry dual boot ? sounds funny :yh: the problem with the Ophir USB is, that after connectig the device shows a Serial 00000000 The FTDI driver does not work with this, but by arduino pro mini works fine... the Ophir uses other drivers than the...

Hi, i have bought a Ophir 20C-UAU laser measure head with USB-Plug. I can use this with a windows PC, but i dont have a windowsPC on my garage. I use linux, Arduino, Raspberry .. but no WIndows ;-) any ideas or experience how to connect the Ophit 20C-UAU with a Raspberry or a Arduino ...

hi, it is this laser module 221929851558 and the power regulator like this 291594513358, but the resistor R1 is modified (poti) greetings

hi, i have bought a china laser engraving module. It is a 300mW Module. on the laserdiode connection i measure 5.6V i wonder ... is it too high for a good lifetime ?? greetings

Hi, thanks for the hints, i will look for a laser power meeter is a LPM urently required ? can i measure the light power with a photodiode circuit ? I only need the point where the power output is going down. could ba an interims solution ??? Greetings @Lifetime17: let me guess. you...

no, i do not. I thought that the new 405-G2 Glass lens is supplied correctly .. i will try greetings

hi, how can get operation voltage, current from a unknown laser diode my consideration: a laboratory power supply and a temperature sensor on the back from the diode ? careful increasing voltage and current with continous measure temperature ? any (better) ideas ?

thanks all, the lens is correct in place, my problem is that the lens is touching the diode. i can not put it closer. after some tinkering: i can focus to a low distance to engrave wood, thats ok for me, but a small and tight spot is not possible greetings

with a gray filter i have taken this picture... it is the "Nexus" beam :)

uh ... it is very tricky to make good pics with protection glasses and my mobile phone, but i´ve got it (i hope) look at the pictures in attachement. this is the best and smallest focus. With the protection glasses, the point is smaller ... greetings for making pictures i used a low current...

hi, i am from germany, and i am a new user here i want to build a additional lasermodule for my cnc machine. the following items are using: - Nichia NDB7875 - 2.4A X-Drive V6 Laser Driver - 405-G-2 Glass Lens - Adjustable brass laser diode housing (ebay 161804830486) - a 20W peltier cooler...