Here's a question I have so far not been able to find an answer to:
How does a N x N dot-matrix diffraction grating affect the radius and intensity of the individual dots relative to the beam of the laser diode? Which characteristics of grating and laser module are relevant factors?
What I want to achieve is to project a matrix of laser dots, each roughly equivalent in intensity to a 5mW green laser pointer, to keep it eye-save. To do this, I have to somehow determine the required power of the laser module.
Any information would be very much appreciated!
/Gerald
How does a N x N dot-matrix diffraction grating affect the radius and intensity of the individual dots relative to the beam of the laser diode? Which characteristics of grating and laser module are relevant factors?
What I want to achieve is to project a matrix of laser dots, each roughly equivalent in intensity to a 5mW green laser pointer, to keep it eye-save. To do this, I have to somehow determine the required power of the laser module.
Any information would be very much appreciated!
/Gerald