• Rotatable Optical Disc Hartley's

  • 241-515
  • In Stock
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  • £23.00excluding VAT

    £27.60 including VAT

  • Hartley's Rotatable Optical Disc
    A 230 mm diameter disc marked from 0 to 360 degree at
    every 1 degree, with centre mark, on a stable base. The
    main disc and the lamp house with 12V, 24W bulb can be
    rotated and held in any desired position. With the lamp
    house, a rotatable disc with single, double, triple and
    quadruple slits and with adjustable lens carrier with lens
    for divergent, parallel or convergent light beams is provided.
    Optical elements provided for reflection are 50 mm
    wide. Optical element for refraction are semicircular,
    biconvex, biconcave, right angle prism and a trapezoidal
    acrylic blocks. These optical elements have powerful
    magnets attached for fixing of blocks to the disc.

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