Microlens Array for Integral photonics
A microlens is a small lens, generally with a diameter less than a millimeter and often as small as 10 micrometers. Microlens arrays contain multiple microlenses formed in a one-dimensional or two-dimensional array on a supporting substrate. The substrate is generally thicker than the lens to support the structure.
The application of a double-row compound eye lens array to an illumination system can achieve high light energy utilization and large area of uniform illumination in English. So array fresnel lenses are often used in the field of projection display.