Micro lens array refers to an array composed of microlenses with diameters of tens to hundreds of microns and relief depths of hundreds of nanometers and microns. With its unique optical properties, microlens has the advantages of light weight, thin film and integration, which breaks the limitation of traditional optics and makes the system easier to integrate. It is used in Hartmann sensor, stereo imaging, light field display, beam coupling, Beam homogenization and other fields have a wide range of applications.

Classification :

From the shape of the caliber, it can be divided into quadrilateral microlenses, hexagonal microlenses, rectangular microlenses, circular microlenses, and random microlenses.

From the surface shape, it can be divided into spherical microlenses, cylindrical microlenses, hyperbolic microlenses, parabolic microlenses, Diffractive microlens array, fly eye microlens array, cylindrical microlens array, uniform light microlens array, Fresnel microlens arrayetc.

From the application wavelength, it can be divided into visible light band microlenses and infrared band microlenses.

Material:

Fused Silica,Silicon,Germanium,ZnSe（Zinc selenide）, ZnS（zinc sulfide）, Sapphire, CaF(calcium fluoride).,etc