LBTEK Planar Microlens Array (MLA) is a planar optical element based on the diffractive optical principle using liquid crystal polymer (LCP) for laser beam homogenization and beam shaping. It consists of a polymer film and an N-BK7 window, utilizing the array-type phase distribution on the LCP film to achieve microlens array functionality. The output beam profile is determined by the parameters of the microlens units. By adjusting the phase period and contour of the microlens units, the beam divergence angle and profile of the output beam can be flexibly controlled to meet various laser beam homogenization and beam shaping requirements of different shapes and sizes. This device is polarization-dependent: when the incident light is controlled to be right-handed or left-handed circularly polarized light, the beam can be made to diverge or converge after passing through the unit lenses. Based on the diffractive principle, the divergence or convergence angle of the unit lenses follows sin θ = λ/p, where λ is the design wavelength and p is the radial phase period of a single lens. Furthermore, the microlens array is designed for single-wavelength operation and is aberration-free. The incident surface is coated with an AR coating, providing high transmittance and diffraction efficiency. It can be widely used in wavefront sensing, optical concentration, beam shaping, and various other systems. It also has great potential in optical information processing, optical interconnection, optical computing, image scanners, light field cameras, medical devices, 3D imaging, and display applications. LBTEK offers standard microlens arrays with a size of Ø25.4 mm, a microlens unit focal length of 50 mm, a square output beam profile, and operating wavelengths of 532 nm, 633 nm, and 850 nm. In addition, LBTEK provides various customization services, including special sizes, operating wavelengths, beam divergence angles, and beam profiles. For specific customization requirements, please contact LBTEK Technical Support.