Raybox with Accessories
The raybox can be used in a single ray mode without using the plano-convex lens. However, with the lens inserted (plane face towards the light source), and using the two-slit masks, the emergent light can be made to be divergent, convergent or parallel by adjusting the position of the light source in relation to the lens. These facilities enable the raybox to be used in a wide range of optical experiments with transparent flat-based blocks, prisms and mirrors. The coloured filters can be used to produce beams of coloured light. However external light levels have to be reduced for maximum effectiveness. Base measurements: 180mm x 65mm x 75mm. The light source is mounted under the adjustable lid, designed so that the minimum light emerges in unwanted directions.
Accessories: Plano-convex lens of focal length 75mm, 2 plastic masks with respectively, one or two thin slits and one broad slit, 7 coloured filters and 1 tri-colour filter, mounted in 50mm x 50mm plastic frames, 1 spare 12v 10w bulb.
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