Products

DFM Engineering can accommodate your specific requirements.
Inquire about custom sizes, specialized instrumentations or custom optical systems.

Satellite Tracking Telescopes

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Satellite Trackers 

Without a mount capable of high speed and great precision utilizing absolute position encoders, with a high natural resonant frequency, continuous accurate tracking of many satellites is not possible.

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LEO Scope™ and LEO Comm™

The definitive Space Domain Awareness (SDA) telescope / camera with 26-inch aperture F/1.7 4.4-degree FOV providing optical surveillance rivaling the world's finest and most relied upon systems.

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ATLAS OTA

Specifically designed to detect asteroids and provide warning of an impact with the Earth. Offering F/2 and 7.5-degree FOV with a modified 110 Megapixel CCD Schmidt Camera.

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Prime Focus Instrument™ PFI™

Allows telescopes to perform wide field astronomy such as multi object photometry, super nova patrol, variable stars, planetary transits, occultations, orbital debris searches, asteroid searches, etc.

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Hydrostatic Bearings Double Horseshoe Mount

(Alt-Alt) Eliminates both the blind-spot at the zenith and the need to flip the telescope when it crosses the meridian. This mount offers fast tracking of debris targets in any direction across the sky.

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Ximea sCMOS Camera

6144 X 6144 X 10 µm detector offers up to 46fps, 95% Quantum Efficiency, full well capacity above 110ke-, 12 and 16-bit modes, for asteroid searching and Space Situational Awareness (SSA) applications.

Standard Classical or RC Cassegrain Telescopes

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CCT-16

Provides excellent pointing and tracking accuracy previously only available on larger telescopes. A 20 kg instrument load provides generous growth potential.

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CCT-24

Our typical 0.5 & 0.6M telescopes offer a F/3 primary mirror with an effective ratio of F/8.  Providing stiffness for smooth tracking and excellent accuracy.

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CCT-32 & CCT-40

Our 0.8 & 1M support a 65kg instrument load using a structure that permits very fast movement with high natural frequencies and low moments of inertia.

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CCT-50 and larger

Our 1.3M "Big-Iron" mount supports a 200kg instrument load of up to 100cm in length providing nearly unlimited instrumentation potential.

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Custom Telescopes

Since 1979, DFM has worked closely with leading professional astronomers to customize telescopes for 
specific requirements and dedicated research.

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Telescope Optics

Every Optical System is custom created to meet customer specifications. Our in-house optical facility manufactures and tests all mirrors 26" and larger.

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Beam Directors

Our custom-designed optical systems may take the form of a siderostat, or a Coude' telescope of Alt-Az, Alt-Alt, or equatorial configuration.

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DIMM - Differential Image Motion Monitor

Our seeing monitor performs sky brightness, atmospheric transmission, and extinction coefficients measurements.  Performs autoguiding and star centering functions.  Offers full robotic operation.

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Gimbals

A gimbal is a gimbal is a gimble?  NO it's NOT!  Tracking speed and payload have a huge impact on the motors, the mount, and controls.  DFM offers all 3 configurations in many sizes for various applications.

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Heliostats

DFM has provided numerous heliostats.  We have developed a special polar alignment technique using a two mirror system to fold the light downward.

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Light Detection and Ranging Components LIDAR

Our elevation-over-azimuth scanner design are used for remote sensing, including pollution monitoring and enforcement, fugitive dust detection, clear air turbulence, and meteorological research.

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Siderostats & Coeleostats

These have been used for the JPL / Keck telescope testbed interferometer as well as on larger systems and provide extremely low jitter in the axis motion and in the mirror piston.

Instrumentation

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Articulated Relay Eyepiece™

Allows handicapped access to the eyepiece by using a series of relay lenses and folding mirrors to reposition the focal plane for ADA compliance of public facilities.

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Filter Wheel

Provides the option to rotate through (8) 50mm filters in one imaging session without having to switch between filters.  Offers full robotic operation.

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Guide Acquire Module

These modules provide autoguiding and star centering functions increasing your pointing accuracy by placing celestial objects in the center of the field. 

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Photometer

Using a single channel classical photo multiplier tube (PMT) of various types, in a housing connecting an aperture wheel, filter wheel, fabry lens and/or GAM.

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Multiple Instrument Adapter™ (MIA)™

Allows up to 5 instruments to be mounted: N, S, E, W, and straight through.  Holds the DFM filter changer.  Comes with a networkable 11 motor control system.

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Slide Mirror

Allows selection between two different cameras, or camera and eyepiece.  Allows direct imaging or fields viewing to verify and center an object.

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Full Aperture Shutter

DFM's shutter's flawless performance over ten million operational cycles and counting is useful wherever a large shutter is required: CCD cameras, spectrographs, or giant telescopes with large beam sizes.

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Smart Auto Guider™

Allowing for full robotic operation, the Smart Auto Guider™ can simultaneously support direct imaging and support a spectrograph.

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Spectrograph

A remotely controlled optical system offering classical dispersion utilizing a decker, bilateral adjustable slit, collimator,  filter wheel, gratings, and detector.

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Filter Cassette System

Computer controlled research grade filter selection. Filter Changer unit with an 8-position filter cassette holding 125-mm X 125-mm X 9-mm thick filters.  

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X-Y Guider

A X-Y stage is typically needed to allow off axis guiding for long integrations (or exposures) when performing direct imaging.  Custom designs available.

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TCSGalil™

Provides a user-friendly interface to the telescope. Utilizing a PC, you have continual position display, status reporting, and an easy-to-use, menu-driven command set.