Rectangular Refraction Glass Block, 75 x 50 x 18mm

This rectangular refraction block is made from imported optical glass with optically worked surfaces, slightly beveled edges, and bubble-free clarity throughout. It measures 3" (75mm) long, 1.5" (50mm) wide, and 0.7" (18mm) thick, providing a substantial and easy-to-handle piece for benchtop optics work. All angles on the block are accurately worked to support precise demonstrations of refraction, reflection, and total internal reflection. The optically clear surfaces allow students to trace light paths through the glass and observe how light bends at each interface, making it a practical tool for introductory and intermediate physics experiments. Beyond the classroom, the block is also used in photography for creative lighting and distortion effects. Its compact size and durable construction make it well suited for repeated use in both educational and studio settings.