Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: roboninja93 on February 07, 2014, 07:01:28 AM

Title: laser detection
Post by: roboninja93 on February 07, 2014, 07:01:28 AM

I am looking for a cost effective solution for detecting laser.
Photo transisters are used many times in line following sensors with IR transmitters.
Similarly what can be used for lasers?

please help

Title: Re: laser detection
Post by: waltr on February 07, 2014, 07:41:04 AM

LASER is light, therefore any photo transistor or photo diode that has a response to light at the wavelength of the LASER will work.
What is the LASER's wavelength? Red at 660nm? or IR at 890nm? or Green at 550nm?