a first optical lens having an optical isotropy, having a thickness range from about 1 mm to 7 mm, having a curved first major surface and a curved second major surface having a best-fit spherical first radius of curvature in a range from about 20 mm to about 200 mm, the curved first major surface is closer to a display configured to emit light;

a second optical lens opposing the first optical lens, having a thickness range from about 0.5 mm to 6 mm, having a third major surface and a fourth major surface having a best-fit spherical second radius of curvature greater than about 500 mm, the fourth major surface is closer to the viewer, the first optical lens concave towards the second optical lens, wherein the first optical lens is separated from the second optical lens by air;

a partial reflector disposed on and conforming to one of the curved first major surface and the curved second major surface of the first optical lens and having an average optical reflectance of at least 30% in a predetermined wavelength range extending from about 400 nm to about 700 nm;

a reflective polarizer disposed on and conforming to one of the third major surface and the fourth major surface of the second optical lens, the reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having an orthogonal second polarization state in the predetermined wavelength range; and

a first retarder layer disposed between the display and the first optical lens and a second retarder layer disposed between the first and second optical lenses.