Optical film with defect-reducing surface and method for making same

An optical film comprising:

• an anti-wet-out surface replicated on a first surface having no primary regularly refractive structure;
• and
• a second surface, having a primary regularly structured refracting surface, opposing the first surface.

An optical film comprising:

• an anti-wet-out surface free of primary, regular refractive structure, the anti-wet-out surface having a plurality of local height maxima, a characteristic measure of the first surface having a quasi-random value within a predetermined range, the characteristic value having a first degree of order when measured relative to a first axis in a plane of the film, and a second degree of order different from the first degree of order when measured relative to a second axis in the plane of the film orthogonal to the first axis;
• and
• a second surface opposing the first surface.

An optical film comprising:

• a first surface free of primary regular structure, the first surface replicated with a plurality of local height maxima, a characteristic measure of the first surface having a random value within a predetermined range;
• wherein the optical film is polarization sensitive and local maxima have actual heights and the characteristic measure is one of i) a difference between the actual heights and a nominal height ii) slope angle of the first surface proximate a local maximum.