I scavenged the laser unit from an old DVD RW (benq 22x max). I read in internet that CD burner laser would be infrared hence invisible and DVD burner laser would be red. I soldered wires with both lasers (not removed from the unit) and powered (li-ion cell, 22 ohm R in series) to find the powerful DVD burning laser. But I found both lasers emitting red drawing similar current ( 70 to 80ma with different brightness).
I'm confused why both are red & which one is the DVD burning laser that I'm looking for!
What is the power rating of that Laser diode?
Can anyone pls advise me?
I'm confused why both are red & which one is the DVD burning laser that I'm looking for!
What is the power rating of that Laser diode?
Can anyone pls advise me?