A beam blocking and combining optic comprising a wedged optically transparentsubstrate with a hard dielectric coating applied to a beam combining side of thesubstrate. The coating has a high reflectance at a laser wavelength and high transmittanceat visible wavelengths. The single optical component can combine laser beamsinto a viewing path and act as a laser safety filter to protect the viewer from reflectedlaser radiation while providing good colour balance and very low astigmatismin the viewing path and very low astigmatism in the reflected laser beam.
