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I'm messing around with an optical design program, and it's got an option to enter a custom lens surface using something similar to this equation.
z = ax^2 + bx^4 + cx^6 + dx^8
The problem is, I have no idea what this means. Looking around online I found this equation and a partial description of what Z and X mean, but that's it. Any help available?
Thanks.
z = ax^2 + bx^4 + cx^6 + dx^8
The problem is, I have no idea what this means. Looking around online I found this equation and a partial description of what Z and X mean, but that's it. Any help available?
Thanks.