Laser Technology Inc., developer of pulse laser measuring systems, announced an agreement to distribute MPH Industries Inc.'s radar speed measurement products in 20 states.   . . .   eMagin Corp., developer of microdisplays and virtual imaging technology, announced it will receive additional funding for its Phase III Small Business Innovation Research contract from the US Air Force. The $1 million contract will be used to develop high-resolution active matrix organic light-emitting diode microdisplays for a variety of military avionics applications.