we've ereated a s m a l l revolution to isolate energy This is OCLI's new Circular Variable Filter Monochromator. It completely revolutionizes the process of isolating energy. It's small and compact. Simple to operate. Requires no complex optics. And is so versatile, even we aren't sure ot its full potential. This monochromator results from OCLI's most a d v a n c e d t e c h n i q u e in the a p p l i c a t i o n of interference filters. The interference coatings are deposited around the face of the filter disc in such a way that, when rotated, the wavelength varies as a linear function of angle, permitting simplified wavelength readout. Among its other advantages: greater illumination O P T I C A L 2789 G I F F E N
AVENUE
(not l i m i t e d to c o l l i m a t e d l i g h t ) , h i g h e r e n e r g y throughput, known quantity of transmitted energy, greater ratio of wanted to unwanted energy and it is usable in uncontrolled environments. Best of all, the cost —extremely favorable compared to more complicated devices. You may find the Circular Variable Filter Monochromator highly practical for your specific applications—present or contemplated. We'll be most interested to hear about them, and let you know if this major scientific advancement can benefit you —as it has other firms. For more information, write:
COATING ·
SANTA
ROSA,
L A B O R A T O R Y ,
CALIFORNIA · TELETYPE
707-546-4959 · T E L E P H O N E
I N C . 707-S45-6440
