DFM Engineering, Inc.
1035 Delaware Ave. Unit D
Longmont, CO 80501
A classical photo multiplier tube (PMT) type single channel photometer can be
provided with the following features:
Object Acquisition: Object acquisition is provided by the Guide-Acquire-Module (GAM).
Aperture Wheel: An aperture wheel is provided with remote control.
Filter Wheel: A filter wheel with interchangeable
filter positions is provided. The filter wheel is remotely controlled.
Fabry Lens: A Fabry lens is provided to image the telescope primary mirror onto the photo cathode
of the photo multiplier tube.
Photo Multiplier: Various photo multiplier tubes are available. A commercially available PMT housing
Housing: The photometer is attached to the Guide-Acquire-Module by
its front flange
Guide Acquire Module
Smart Auto Guider™ (SAG™)
Slide Mirror™ (SM-125™)
Electro-Optical-Mechanical Systems™ (EOMS™)
Articulated Relay Eyepiece™ (ARE-125™)