The MHNV®️ Coaxial Newtonian Reflective for Optical Alignment is an optical instrument mainly used for aligning the optical axes of optical systems. It boasts advantages such as a large measurement aperture and a wide spectral range, serving as a specialized device for multi-axis alignment of optical instruments. It can be applied to adjust the optical axis parallelism among laser axes, TV optical axes, and visual optical axes; when equipped with additional accessories, it is also capable of measuring other parameters of optical systems.