The resulting mull, which should be optically clear, is usually examined as a thin film, pressed between two salt windows.

In 2009, Ceravision introduced an optically clear quartz waveguide that appears to resolve this issue.

It uses an optically clear quartz waveguide with an integral burner allowing all the light from the plasma to be collected.

The process starts by printing the shape of the part onto optically clear and dimensionally stable photographic film.

On a parallel line, glass panes are cut to size and washed to be optically clear.

These optically clear monoclinic crystals are about 0.2-1 mm in length and help define the irregular shape.

The goal of the sedimentation process is to deliver clean and optically clear water for every wash.

This is an extremely dense but optically clear material, ideal for stopping high energy particles.

The generated light can now be collected because the waveguide is optically clear, giving excellent lamp lumens per watt.

Thus, many data points, obtained at pH values down to 2 [ 4 5 ] , were probably from supersaturated systems, despite being optically clear.