Optics Physics Labware
Lens Double Concave Spherical
Optically worked, ground edges
| Type | Diameter | Focal Length |
| A | 50 mm | 50 mm |
| B | 50 mm | 100 mm |
| C | 50 mm | 150, 200, 250, 300, 500, 1000mm |
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Lamphouse and Transformer
Comprising a lamphouse & transformer. The lamp gives a steady light for high intensity. Special design of transformer ensures that the lamp starts immediately as it is switched on. When mounted on the integral stand, the lamp is enclosed by a cylindrical lamp house with a circular aperture & the light centre height is adjustable from 200 mm onwards.
The lamp house is open at the top to allow for ventilation & may be removed for operation on a separate stand, as required. The transformer is housed in a two part sheet steel case with ventilation louvres & has a lamp house supplying rod mounted directly onto the transformer case provide a convenient self contained assembly. A 3 core captive flying lead is provided for mains connection.
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