The following is the Matlab code for the quick design of a Bravais lens system.

% Bravais Lens System
M = 3.75; % Magnification
d = 14; % Distance between lenses (mm)
c = 225; % Total distance to image (mm)

f1 = M*d*c/((M-1)*(c-d))
f2 = d*(c-d)/((1-M)*c)

%% Reverse Direction
M = 3.8;
f1 = 20;
f2 = -4.8;

d = sqrt(f1*f2*(M-1)*(1-M)/M) % Distance between lenses (mm)
c = d^2/((1-M)*(d/(1-M)-f2)) % Total distance to image (mm)

%% Bravais Lens System Design 2
f2 = -4.8;
d = 14; % Distance between lenses (mm)
c = 225; % Total distance to image (mm)

M = 1-d*(c-d)/(f2*c) % Magnification
f1 = M*d*c/((M-1)*(c-d))