This is a collection of parts from a Reichert Binolux lamphouse system from a Zetopan research microscope. The Binolux lamphouse was also used with a different mounting system on both the MeF-1 and MeF-2 inverted metallographs. The Binolux consists of two lamphouses – a smaller low voltage tungsten or tungsten-halogen for visual observations in transmitted and incident light, and a larger lamphouse capable of housing either a 150W xenon or 200W mercury lamp.

This assembly is missing the low voltage lamp system, but the entire arc lamp system is present along with the beam-splitter / mirror system for switching between the two lamphouses. The arc lamp housing includes an adjustable collector lens, iris diaphragm, and a swing-out diffusion disk between the collector and the arc lamp position. The system for holding the arc lamp is centerable using two knobs on the side of the lamphouse, and the position may be locked using concentric locking collars. The arc lamp is supported by a swing-aside holder for the base of the lamp – connection to the anode is via a flexible lead. There are two separate conduits for the anode and cathode with bushings and locking strain reliefs. The cables are present but the leads on the interior of the lamphouse have completely corroded. The cables have been removed. It would be possible to install new connectors after shortening the cables by about 10 inches. The strain relief boots remain on the cables.

The lamphouse also contains two five-position filter holders. One holder contains three different neutral density filters and what appears to be a VG-9 green filter. There is also an ‘open’ position. They are all in excellent condition and can easily be exchanged using the retainer springs. The second slider holds a metal disk for beam suppression, what appears to be a pair of BG 3 or BG 12 filters (dense violet blue); a UG-5(?) nearly opaque filter that is cracked; and a light aqua filter which is probably a BG-38 red suppression filter. The last position is a sandwich of two types of heat filter. The ND filter slider would be expected for use with a xenon lamp, but the second slider is obviously intended for UV and near UV fluorescence work.

All of the existing components are in excellent condition with the exception of the leads to the arc lamps. All controls work as they should. The only other issue is the screw for the clamping knob for fixing the Binolux assembly to the rear of the Zetopan has broken. It will be possible to replace this using the existing parts as a pattern. (The screw is fixed to the Binolux lamphouse – the knob and clamp segment with spring thread onto the broken screw).

Photo set 1496

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