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Optical Disc, Harley’s P-7000 |
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| A 30cm. dia, white painted steel disc marked from 0 to 360° at every 1°, with centre mark, on a stable cast iron base. The main disc and the lamp house (with 12V, 24W bulbs) 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 x 25mm, plain glass mirror and a polished plated metal cylindrical mirror. Optical element for refraction is semi circular, bi-convex, bi-concave, right angle prism and trapezoidal acrylic blocks. These Optical elements have powerful magnets attached for fixing of blocks to the disc. |
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