Doubt about laser power in laser transmitter

  • Thread starter NOMI_2009
  • Start date
  • #1
NOMI_2009
3
0
I'm making a laser torch based audio transmitter n receiver using 2n5777 phototransistor as receiver what must be the min power of the torch
 

Answers and Replies

  • #2
Wetmelon
154
1
How far are you shooting this laser? .5 inch? a foot? a hundred yards? 20 miles? This will affect your required strength
 
  • #3
NOMI_2009
3
0
range is about .5 inch
 
  • #4
BenchTop
40
0
If you are running a laser diode with enough current so you can see it yourself, you will should be able to detect it with almost any photodiode 100 meters away in decent conditions, easy!
 
  • #5
skeptic2
1,763
59

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