What’s the significance of different Laser Types in Starfinder

As the title says, What is up with all the different types of lasers, there’s Zenith, Parallax, Corona and others. But I can’t seem to find the significance of these subtypes of laser? I am assuming there are maybe certain armors or something that resist say a zenith laser, but not a corona laser?

using crtl+f doesn’t seem to be picking up any relevant info in my PDF. The index is of equal uselessness.

Any help on determining what all these types mean and what i should be looking for in arming myself with a laser weapon would be highly appreciated.