Optical technology, such as the telescope, sextant and other devices that use telescopes, allowed for accurate surveying of land and the ability of mapmakers and navigators to find their latitude by measuring angles to the North Star at night or the sun at noon.

In the early 1990s, a firm that designed and built refracting telescopes was named in his honor, Fraunhofer Systems Company, since the telescopes were based on his design but now the company is part of Burbank Optical Company.

In addition, Side looking radars, High-powered Optical Satellites, and sky-scanning, high-Aperature, high sensitivity Radars such as Radio telescopes, would all be able to narrow down the location of a Stealth aircraft under certain parameters.

In about 2009, Guan Sheng Optical ( GSO ) corporation, a wholesale optical manufacturer, introduced a line of significantly less expensive Ritchey – Chrétien telescopes.

This method is used by, among others, the Nordic Optical Telescope, the New Technology Telescope, the Telescopio Nazionale Galileo and the Keck telescopes, as well as all of the largest telescopes built in the last decade.

Optical telescopes have been used in astronomical research since the time of their invention in the early 17th century.

Optical engineers design components of optical instruments such as lenses, microscopes, telescopes, and other equipment that utilizes the properties of light.

Optical telescopes on the Earth work at a much lower resolution than the diffraction limit because of the distortion introduced by the passage of light through several kilometres of turbulent atmosphere.

It will house a 20-inch RC Optical Systems Truss Ritchey-Chrétien high-quality research telescope and several Celestron CPC 800 8-inch Schmidt-Cassegrain telescopes that will be on pedestal, they will be able to roll out under a roof.

Optical astronomy requires telescopes that use optical components of great precision.

The Optical Properties Monitor ( OPM ) was to remain on Mir for nine months to allow study of the effect of the space environment on optical properties, such as mirrors used in telescopes.

Optical interferometry, which has matured within the last two decades, combines the light of multiple telescopes so that exquisitely precise measurements can be made, akin to what might be accomplished with a single, much larger telescope.

* National Optical Astronomy Observatory ( NOAO )-AURA operates NOAO telescopes at Kitt Peak in Arizona and Cerro Tololo in Chile.

Although other pre-existing telescopes such as the Nordic Optical Telescope had lightweight mirrors supported by actuators, the NTT is claimed to be the first telescope using full active optics.

COAST, the Cambridge Optical Aperture Synthesis Telescope, is a multi-element optical astronomical interferometer with baselines of up to 100 metres, which uses aperture synthesis to observe stars with angular resolution as high as one thousandth of one arcsecond ( producing images with much higher resolution than can be obtained using individual telescopes such as the Hubble Space Telescope ).

Founded in 1972 by John Diebel, Meade started out as a mail order seller of small refracting telescopes and telescope accessories manufactured by the Japan based Towa Optical Manufacturing Company.

In November, 2006, plaintiffs including Star Instruments and RC Optical Systems, manufacturers of traditional Ritchey-Chrétien optics and telescopes, filed a civil lawsuit against Meade, several dealerships, and other individuals in federal court ( New York Southern District ).

Optical elements produced by the means of diamond turning are used in optical assemblies in telescopes, video projectors, missile guidance systems, lasers, scientific research instruments, and numerous other systems and devices.

Optical interferometers are extremely complex, unfilled aperture photon-collecting telescopes in the visual ( sometimes the near infrared, too ), which produce synthesized images and fringe data " on the fly " ( unlike radio interferometers which are privileged to record the data for later synthesis ), essentially by taking an inverse Fourier transform of the incoming data.

NPOI is expected to grow significantly in capability with the pending addition of four 1. 8-meter aperture IR / Optical telescopes into the current array.

* TMB Optical, a manufacturer of telescopes and optics equipment

The telescopes are mounted on an equatorial telescope mount built by Optical Mechanics, Inc ..

The companies concerned were Pathé, Edison, Biograph, Vitagraph, Lubin, Selig, Essanay, Kalem, and the Kleine Optical Company, a major importer of European films.

Optical cards were produced by Landis + Gyr and Sodeco from Switzerland and were popular early phonecards in many countries with first optical phonecards successfully introduced in 1977 in Belgium.

Optical sound was introduced for 9. 5 mm in 1938, but efforts to produce a library of sound films were interrupted by the War.

In 2011, light echoes from the 19th century Great Eruption of η Carinae were detected using the U. S. National Optical Astronomy Observatory's Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory.

Optical microscopes are the oldest design of microscope and were possibly designed in their present compound form in the 17th century.

Optical electrophysiological techniques were created by scientists and engineers to overcome one of the main limitations of classical techniques.

Fellows of the British Optical Association were entitled to use the affix FBOA.

Optical libraries, such as the Hewlett Packard 40XT, were created to automate loading and storing of the disks.

; SPICAM: Main objectives of the Multichannel Optical Spectrometer were to find the vertical profiles of ozone, water vapor, carbon monoxide, aerosols, and temperature, in the middle and lower atmosphere, diagnostic of the ionosphere, global distribution of water vapor, and building of the density model of the atmosphere.

Optical instruments were supplied by Giuseppe Campani.

Optical laboratory technicians were designated as 42E upon graduation of the 21 week optical training course.

Secondary payloads were Space Station Heat Pipe Advanced Radiator Element II ( SHARE II ); Shuttle Solar Backscatter Ultra-Violet ( SSBUV ) instrument ; Tank Pressure Control Equipment ( TPCE ) and Optical Communications Through Windows ( OCTW ).

Secondary payloads were: Ascent Particle Monitor ( APM ); Middeck 0-Gravity Dynamics Experiment ( MODE ); Shuttle Activation Monitor ( SAM ); Cosmic Ray Effects and Activation Monitor ( CREAM ); Physiological and Anatomical Rodent Experiment ( PARE ); Protein Crystal Growth II-2 ( PCG II-2 ); Investigations into Polymer Membrane Processing ( IPMP ); and the Air Force Maui Optical Site ( AMOS ) experiment.

Middeck experiments were: Israeli Space Agency Investigation About Hornets ( ISAIAH ), Solid Surface Combustion Experiment ( SSCE ), Shuttle Amateur Radio Experiment ( SAREX II ), Air Force Maui Optical Site ( AMOS ), and Ultraviolet Plume Imager ( UVPI ).

The name " Pentax " was originally a registered trademark of the East German VEB Zeiss Ikon ( from " Pentaprism " and " Contax ") but, as all Germans patents were annulled with the country's defeat, the name " Pentax " was taken by the Asahi Optical in 1957.

Optical observations were conducted by Petr Pravec, Marek Wolf, and Lenka Šarounová during March and April 1996.

At that time the company operated 461 stores under three brands ( OPSM, Laubman & Pank, Budget Eyewear ) in Australia, 35 stores in New Zealand ( where they were market leader ), 75 stores in Hong Kong and 12 in Singapore ( under the Optical Shop brand ), and 12 in Malaysia.

Most of the capital costs of the observatory were provided by the University of Wisconsin – Madison, Indiana University, and Yale University, while the National Optical Astronomy Observatory provides most of the operating services.

Optical fiber, however, made such systems obsolete before many were built.

Optical elements and instruments of precision produced by John Brashear were purchased for their quality by almost every important observatory in the world.

PGNCS, and specifically its computer, were also the command center for all system inputs from the LM, including the Kollsman Instrument built Alignment Optical Telescope, the radar system, the manual Translation and Rotation device inputs by the astronauts as well as other inputs from the LM systems.

Optical effects were used to make the planes look as if they were entering the set.