ESAW Set Of Six Lenses In Plastic Tray (LO-249)Set of 6 unmounted spherical lenses to explore the properties of different lenses, how they interact and affect light, concepts of reflection and refraction and combination of lenses. Made of optically worked plate glass with polished faces and groun...

LO-258 - ESAW Cylindrical Mirror GlassUnmounted, optically worked, glass cylindrical mirrors, Semi-circular, 75×25mm (diameter × height). Silvered back with a protective coating.OP13559/1 Cylindrical Mirror, Glass, Concave OP13559/2 Cylindrical Mirror, Glass, Convex

LO-276 - ESAW Spherical MirrorUnmounted spherical mirrors, optically worked, silvered back with protective coating.276 Concave Mirror276 Convex Mirror Diameter 50mm            Diameter 60mm Focal Length                    Focal Length  1 100mm 5 100mm 2 150mm 6 150mm 3 20...

ESAW Circular Plane Mirror (LO-267)Unmounted plane, circular, smooth ground edge, 50mm diameter. Silvered back with protective coating.LO-267 Circular Plane Mirror

LO-285 - ESAW Planck's ConstantSeven LED's of different wavelength mounted on a plastic moulded case (142x80x40) mm approx. selectable through a rotary switch surrounded by LEDs. The apparatus uses a 5V DC external voltage via. 4mm colour-coded sockets indicated with 5V  and 0V respectively. To m...

LO-303 - ESAW Telescope Comprising a plano-convex lens of about 38mm diameter × 150mm FL, mounted in a tube about 400×50mm (length × diameter), and a double convex lens of 50mm diameter 500mm FL mounted in a tube 400 × 55mm diameter. The small tube is located in the large tube by means of foam pl...