Beam blocking and combining optic

G - Physics – 02 – B

Patent

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Details

G02B 27/10 (2006.01) A61F 9/007 (2006.01) A61F 9/008 (2006.01)

Patent

CA 2672796

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

L'invention concerne un dispositif optique de mélange et de blocage de faisceaux, qui comprend un substrat en coin optiquement transparent ayant un revêtement diélectrique dur appliqué sur le côté mélangeur de faisceaux du substrat. Le revêtement a une réflectance élevée à une longueur d'onde de laser et une transmittance élevée à des longueurs d'onde visibles. L'unique composant optique peut mélanger des faisceaux laser pour former un trajet de visualisation et servir de filtre de sécurité laser pour protéger l'observateur du rayonnement laser réfléchi tout en assurant un bon équilibre de couleurs et un très faible astigmatisme dans le trajet de visualisation et un très faible astigmatisme dans le faisceau laser réfléchi.

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