Non-Polarizing beamsplitter Plate is similar to the beamsplitter Plate and is usually used at a 45 ° tilt angle. The front surface is coated with an anti polarizing spectral film that can separate incident light according to a specific ratio, while the back surface is coated with an anti reflective film to reduce interference and ghosting effects between light beams. However, unlike conventional spectrometers,Non-Polarizing Beamsplitter Plate do not have strict requirements for the polarization state of the incident light. Within the designed wavelength range, regardless of the polarization state of the incident light, the splitting ratio will not change, making them suitable for spectroscopic systems where the polarization state of the incident light changes or there are multiple polarization situations.