A ventilated lamp house having an open front with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and cylindrical lens. It has a light source comprising 12 volts lamps in a holder with...
Provide a simple means of producing single or multiple rays of light for use in elementary optics. Made of die-cast alloy, the raybox has an open front and vertical internal grooves to accommodate a slit plate and a cylindrical lens. Supplied...
A ventilated lamp house having an open front with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and cylindrical lens. It has a light source comprising 12 volts, 21 watts lamps in a...
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