Features： High Reflectivity,Narrow Band and Broadband Wavelength are Available,Easy to Mount/Align and Operation. High-reflection (HR) Dielectric Mirror refer to coating layers of dielectric films on optical substrates, and are designed to achieve the highest possible reflectance, usually at specific wavelengths. Although engineered for best performance at normal (0) or 45 degrees angles-of-incidence, these coatings can be tailored for most any angle. Specially Dielectric HR Mirrors are suitable for the application of laser resonator cavity and return of light path.