AT Optical Instruments Co., Ltd.
AT Optics manufactures high-quality optical waveplates from birefringent crystal materials, precision-cut and polished to ensure accurate phase retardation at the designed wavelength. Available in half-wave, quarter-wave, and custom retardation options, our waveplates can be tailored in size and coating to meet specific application requirements. Compatible with polarizers, lasers, interferometers, and imaging systems, they enable precise polarization control and reliable optical modulation.







