This is a Bausch and Lomb High Intensity Monochromator with an SP-200 UV Mercury arc source.
Monochromator is catalog # 33-86-75. Grating has 2700 lines / inch.
Operating, output set to 170nm, flash photo
Lamp operating full intensity, output set to 300nm
Output set to 300nm
Operating full intensity 300nm
Power supply SP-200
Power supply SP-200
Interior of source, showing lamp and choke assembly
Choke / concentrator has quartz optics, two elements
to concentrate beam from Lamp.
Closer up to Lamp
Lamp envelope. arc starting electrode is
on opposite side of the envelope. There is only
the high voltage connected to the top and
bottom. Other arc starting electrode on
opposite side has no connection, but is
open to air to allow arc at lower starting
voltage (I think)