Optical calibration board is mainly used in research units or special high-precision calibration tools in the field of vision, 3D image measurement, 3D reverse engineering, stereo matching, 3D reconstruction, etc., mainly through the calibration software to obtain camera calibration results data.
The resolution board is mainly used in the imaging quality evaluation of various optical instruments and equipment and is suitable for the imaging quality evaluation of various machine vision lenses and optical components.
The mask plate is usually used in the semiconductor integrated circuit manufacturing process, which usually requires multiple lithography processes to cut various doping Windows, electrode contact holes on the dielectric layer of the semiconductor crystal surface, or etch metal interconnect patterns on the conductive layer. The lithography process requires a complete set (several to more than a dozen pieces) of photocopy masking film plates with specific geometric patterns that can be accurately registered with each other.
Aspherical CGH can simplify system structure and improve image quality compared with spherical surface and is widely used in aerospace loads, lithographic objectives, consumer optical systems (VR), and other fields.
Cylindrical mirrors are widely used in imaging, beam shaping, and other fields, such as lidar and VR headsets.
