Plastic moulded ray box featuring ventilated metal lamp housing.
One single slit and two triple slits provided with ray box which can be used simultaneously.
A 12 V, 2 A bulb with a vertical filament is used as a light source.
Glass, one each double convex, Plano – convex, concavo – convex, convexo – concave, Plano – concave and double concave lens, in box.
Sizes in 38mm and 50mm.
Lenses, Set of Six (50mm).
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