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Small motors position big glass

 

 
Optical assemblies are precisely positioned using a miniature dc motor, encoder, and a low-backlash planetary gearhead. The most powerful stand-alone telescope in the world goes into operation this year on Mt. Graham near Safford, Ariz. Astronomers are particularly interested in setting their sights on distant galactic systems, young double stars, and newborn suns. In principle, this large binocular telescope (LBT), over 20-m high and weighing over 600 tons, is an oversized pair of binoculars. Together, the two 8.4-m reflectors make up an approximately 100-m dish for collecting light from weakly illuminated objects at the limits of the universe. The interaction of the two reflectors, mounted 14.4-m apart, provides the telescope with
Products & Services
Telescopes are lens assemblies designed to magnify and view distant objects. Learn more about Telescopes
Binoculars are lens assemblies used for magnifying and viewing distant objects stereoscopically. Learn more about Binoculars
Optical component accessories are used in the design or maintenance of optical components and systems. Learn more about Optical Component Accessories
Parabolic reflectors and ellipsoidal reflectors are used to maximize illumination or projection system output by increasing light source efficiency. Search by Specification | Learn more about Reflectors
Optical sights are optical lens assemblies used for aiming a gun. Categories include telescopic sights, visible sights, and infrared sights. Learn more about Optical Sights
Product Announcements
Rolyn Optics Company - Right Angle Prism
Rolyn Right Angle Prisms are stocked in BK-7 Glass both uncoated and coated; also High Accuracy grade and in Fused Silica... (read more)
New Scale Technologies, Inc. - Rotary piezo motor: high torque, extreme precision
Custom rotary SQUIGGLE motors developed for NASA Jet Propulsion Laboratory "Cobra" fiber positioner to be deployed in ground-based telescope at Mauna Kea... (read more)
Harmonic Drive LLC - New, Harmonic Planetary® Gearhead - Size 20
New, Harmonic Planetary® Gearhead - Size 20, Backlash less than 1 arc-min for Life... (read more)
Harmonic Drive LLC - New, Harmonic Planetary® Gearhead - Size 50
New, Harmonic Planetary® Gearhead - Size 50, Backlash less than 1 arc-min for Life... (read more)
DieQua Corporation - New Precision Right Angle Servo Worm Reducers
Dynabox precision servo worm right angle gearheads are available in 3 backlash levels to satisfy a variety of applications. Output options include single and dual shafts, hollow bore with keyway,... (read more)
Harmonic Drive LLC - Harmonic Planetary Gearhead
Harmonic Drive LLC has introduced a new planetary gearhead, which relies on technology borrowed from its line of harmonic drive gearing. This new gearhead, the Harmonic Planetary, utilizes a non-rigid... (read more)
UE Systems, Inc. - Long Range Leak Detection Module
No need to use an elevated platform or a fork lift to locate those hard to reach leaks or risk getting too close to high voltage electrical equipment when looking for arcing, tracking or corona! It is... (read more)
CGI, Inc. - Precision Gearheads for Accurate Positioning
Our core business is manufacturing precision motion control solutions. We design and build high quality gearheads for a diverse range of applications and can meet your requirements, from the simple to... (read more)
WITTENSTEIN, Inc. (formerly alpha gear drives) - alpha LK+ / LPK+ Economic Gearbox
Economic right-angle in a sleek package... Offering exception value for money, alpha's newest right angle provides the perfect solution for applications where economic efficiency is a top priority. (read more)
Bayside Motion / Trilogy Motors - Brands of Parker Hannifin Electromechanical - Stealth ® Gearmotors & Gearheads
Parker Bayside's Stealth® Gearmotors represents the first time a brushless servo motor and a helical planetary gearhead have been integrated into a single product. Previously, engineers needing a gear... (read more)
Topics of Interest
Of all the uncertainties that bewilder astronomers, none is more puzzling than what transpired in the first millionth of a second after the Big Bang. Understanding what occurred then will help unravel... (Read More)
Upgrades and repairs planned for the final Hubble Space Telescope servicing mission in 2008 promise to bring the orbiting instrument to the "apex" of its capabilities, enabling it to point the way to... (Read More)
Hydraulic lift helps millions to get a better look at the stars, planets, solar system and who knows what else one might get a peek at through the new 8.1-meter Gemini telescope. The International... (Read More)
LOOKING TO THE STARS Astronomers in the U.S. can still look forward to a human servicing mission to the Hubble Space Telescope next year, and perhaps to big observatories on the far side of the Moon... (Read More)
2.4 Telescopes and Beam Expanders Kepler or astronomical telescope. As shown in Fig. 2.5, in the keplerian telescope both the objective and eyepiece have positive focal lengths. Thus, per Eq. (Read More)
See more product announcements for Telescopes
Glass Tubes

Glass Tubes
IRD Glass


Bandpass, Longpass and Shortpass Filters

Bandpass, Longpass and Shortpass Filters
American Precision Glass Corp.


FOCtek Optical Prism

FOCtek Optical Prism
Foctek Photonics, Inc.


11 See more product announcements for Telescopes