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BAUSCH & LOMB Measures Coating Efficiencies with a McPHERSON Model 235 Monochromator A McPherson
M o d e l 2 3 5 Seya-Namioka Type
Vacuum
U.V. Scanning M o n o c h r o m a t o r plays an important role in the quality control of Bausch & Lomb's outstanding line of Certified Precision Diffraction Gratings. Installed in the grating p r o d u c t i o n area, the McPherson M o d e l 2 3 5 is used to assure the performance of Bausch & Lomb U.V. coatings of M g F 2 , platinum and g o l d .
It
Mc Pherson Technic, Sales and Service Offices:
vacuum measures
the efficiency of mirror and grating coatings from 5 8 4 A t o 2 2 0 0 A . (Instrument range 5 0 0 A to 6 0 0 0 A ) The Bausch & Lomb quality control application is only one of the many that this half meter unit is successfully performing for companies around the w o r l d .
For c o m
plete performance data on this versatile McPherson M o d e l 2 3 5 , write for free bulletin.
I N S T R U M E N T 5 3 0 MAIN ST., A C T O N , M A S S . 0 1 7 2 0
LaCanada, California . Livonia, Michigan Circle No. 75 on Readers' Service Card
.
Tokyo,
Japan
C O R P TEL: 617-263-7733 . Tel Aviv, Israel .
London,
VOL 36, NO. 12, NOVEMBER 1964
England
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7A
