Right-Angle Prism
Right-angle prisms are fundamental, critical optical components. Their distinctive geometry and path-control capabilities make them important for beam orientation and reflection. The core 90° right-angle design and flexible placement provide reliable solutions for simple, efficient optical layouts. Concept: a right-angle prism is a triangular prism made from a transparent optical medium, commonly optical glass, fused silica, or optical crystals. Two of its three optical faces are perpendicular, forming a precise 90° angle, the basis of its path-control function. Path-control mechanism: light transmitted into the medium through the entrance face undergoes total internal reflection at a specific inclined reflecting face. If that face carries a metallic or dielectric coating, the coating provides reflection. Light then exits through the output face, completing the intended directional change. The right-angle design and multiple placement orientations enable different steering effects. Spectral suitability: right-angle prisms generally transmit visible light efficiently. Their applicable spectral range depends largely on the optical material. Fused silica, for example, extends operation into ultraviolet or near-infrared regions. Materials must therefore be selected strictly according to the application's spectral requirements. Changchun Longze Precision Optical Instrument Co., Ltd. offers right-angle prisms with various antireflective or reflective coatings and substrates including N-BK7 or equivalent materials and UV fused silica.
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