Folding lens system and manufacturing method thereof

A folding lens system, comprising:

• a polarization-dependence device having a first surface and a second surface opposite to the first surface;
• a first optical device located at a side facing toward the first surface of the polarization-dependence device, wherein the first optical device has a third surface and a fourth surface opposite to the third surface, and the third surface is a planar surface;
• a first polarization controller located between the polarization-dependence device and the first optical device, wherein the first polarization controller has the same curvature as the first surface of the polarization-dependence device, and the fourth surface of the first optical device is laminated to the first polarization controller;
• a second optical device located at a side facing toward the second surface of the polarization-dependence device;
• and
• a second polarization controller located between the polarization-dependence device and the second optical device, wherein the second polarization controller has the same curvature as the second surface of the polarization-dependence device.