Hi everyone,
I'm working on a similar project, but I need to be able to distinguish between a shiny bright surface and a duller, dark one, also from ~10 cm away. My plan is to use a laser pointer and couple this with a phototransistor so that the laser will reflect off of the bright surface only and be detected by the sensor.
I was going to just use a regular laser pointer and then a separate detector, but does anyone know of an inexpensive laser diode + detector combination (i.e., one component)?
Thanks!
jcm
I'm working on a similar project, but I need to be able to distinguish between a shiny bright surface and a duller, dark one, also from ~10 cm away. My plan is to use a laser pointer and couple this with a phototransistor so that the laser will reflect off of the bright surface only and be detected by the sensor.
I was going to just use a regular laser pointer and then a separate detector, but does anyone know of an inexpensive laser diode + detector combination (i.e., one component)?
Thanks!
jcm