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| Ray Box
(SI-PH-1152) |
| A sheet Metal Lamp housing 155x70x55mm has an open front with extended sides finned extremely for heat dissipation and vertical internal slots to accommodate a slit plate and a cylinder cal lens. With metal plate single and triple slits and whitened on one side for use a returned image screen 12-volt lamp and a lamp holder. The triple slit used along with cylindrical biconvex lens (focal Length 75mm) produces divergent, parallel or convergent rays. |
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