Our heritage of homegrown innovation is routinely called upon by organizations who need a partner to deliver a product which works right the first time. This reputation has earned us the honor of working with the innovators and leaders in technologies such as Gravitational Wave Science, EUV Lithography, Laser Eye Surgery, Gene Sequencing, and Augmented Reality.

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ZYGO Corporation was founded in 1970 by Paul Forman, Sol Laufer, and Carl Zanoni with the vision to become the premier manufacturer of plano optical components through the application of innovative polishing methods. We have realized our founders vision, and further expanded our manufacturing offering beyond plano optical components to include coatings, aspheres, freeforms and complex optical systems.

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Some years ago Chad Kaiser of the US Lighthouse Society ran across a photograph of what was supposed to be the most powerful lighthouse in the world at 1 billion candlepower.  Yes, that is billion not million.  I became intrigued and started researching this light and its history.  This story will describe this very unusual lighthouse in France and how it came to be.  It is actually not a true lighthouse at all.  Instead it is an example of one of the earliest and most powerful Airway Beacons ever built.  But, first we need to understand a little more about air

May 16, 2011 — An f/0.9 lens must allow 1.5 more stops (more than 2x as much light) than an f/1.4 lens, and the physical size of the aperture to achieve that ...

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The first National Lighthouse Lens Survey was released in 2001 at the Sixth Maritime Heritage Conference in Wilmington, N.C. It listed more than 400 classical Fresnel lighthouse lenses in the United States, and two pre-Fresnel, Winslow Lewis lenses. The inventory was a compilation of databases researched by Mike Vogel of the Buffalo Lighthouse Association and the American Lighthouse Coordinating Committee, and by Al and Helen Gademsky of Ohio.

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Sep 26, 2024 — Description. Designed for the Optical Professional this basic aluminum handle comes with a 2.5mm hex nut wrench #TS218. The hex wrench is for ...

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GM Technical Education Program · Enabling GM Engineers and Technical Professionals to be Among the Best in the World · GMTEP Online Registration FAQs · Course ...

Jul 28, 2014 — Algorithm 1: BFS. The basic idea: Start from node a, and for all its neighbors, note that their distance is 1. Then for each neighbor, ...

Fresnel lenses represent a unique aspect of U.S. Coast Guard history.  These artifacts are highly sought by a wide variety of museums and associations.  Due to their historic significance, fragility, high value and the U.S. Coast Guard’s policy to protect and preserve these artifacts, an additional set of conditions is placed upon prospective borrowing organizations.  Requirements for the care, security and display of Fresnel lenses are as follows:

The German government etched symbols onto the prisms of their Fresnel Lenses. This is the story of those symbols. The German government marked most of their lenses with a government certification symbol. Before 1933 and the Nazi Reich, the symbols used were the German Imperial Eagle and a symbol that looked like a castle, which represented the German Seamarks Service. These marks were etched onto the lens glass to certify that the lens met the requirements for government usage.

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Below is a listing of the major changes in the Fresnel lens through time and in most cases who the creator of each change was.

The French Commission for Lighthouses was established on April 29, 1811.  In 1819, Arago who had become a member of the French Commission for Lighthouses in 1813, offered to make a systematic review of possible improvements in lighthouse illumination.  He requested that Claude Mathieu and Augustin Fresnel be assigned as his coworkers on the project.  His request was granted on June 21, 1819, and Augustin agreed to serve on the committee.

by M Young · Cited by 450 — About this book. Optics and Lasers is an introduction to engineering and applied optics, including not only elementary ray and wave optics, but also lasers, ...

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The English and Scottish lighthouse authorities wanted to produce all Fresnel lenses and other lighthouse equipment in their own country and persuaded the Cookson Glass Company to begin production of Fresnel lenses in 1834. Cookson brought in Leonor Fresnel, Augustin’s brother, as a consultant and produced Fresnel lenses from individual pieces and prisms as done by the French lens companies.  The first of these better designed Fresnel lenses, built by the Cookson Co., was installed in Scotland in 1835, in the Inchkeith lighthouse.

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General ordering data. Version, Dekafix, Terminal marker, 5 x 3.5 mm, Weidmueller, white. Order No. 2007100000.

May 7, 2013 — THE TEST CURVES ON CANON MTF CHARTS. Canon tests lenses consistently, so that to the greatest degree possible, MTF results from two or more ...

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Most lighthouse enthusiasts think that the Fresnel lens was the first lens used in lighthouses.  However, that assumption is incorrect in that a number of lenses were proposed and put into use in the years before Augustin Fresnel designed his famous lens.  This story will give you information about these early attempts to use lenses to augment the power of lighthouse optics.

Many companies were involved in the development and refinement of the Fresnel lens.  Some supplied only the glass for the lenses, either in rough form, or both cast and polished.  Other companies assembled the glass elements and performed finish work on the lens elements.  Still other companies produced both the glass and the finished lenses.  This story will be divided into several parts, each discussing one or more of these companies and their contribution to the development of the Fresnel lens.

1.Sona Med Spa. 827 Diligence Dr · 2.Oasis Salon. 11710 Jefferson Ave Ste K · 3.Tracy Henry @ NB Hair Gallery. 711F Brick Kiln Blvd · Ideal Image Newport News - ...