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COMMeMOratiVe ISSue - Illuminating Engineering Society

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Legacy Sponsors<br />

Holophane<br />

I<br />

n 1898, Otis Mygatt founded the Holophane<br />

Company in New York City, buying the<br />

original optical glass patents from Prof. Andre<br />

Blondel and Spiridion Psaroudaki. The name Holophane is<br />

derived from two Greek words, holos, meaning “whole or<br />

entire,” and phanein, meaning “to appear.” Thus the word<br />

“holophane” was defined as “to appear entirely shining.”<br />

In 1905, the general manager of Holophane, Van Rensselaer<br />

Lansingh, collaborated with Louis B. Marks in the founding<br />

of the IES in the Holophane offices in NYC. Several of the<br />

charter members were Holophane employees, including Prof.<br />

Andre Blondel. Lansingh became the first treasurer, later<br />

general secretary, and then president of the <strong>Society</strong>. At least five<br />

presidents of the IES have been Holophane employees.<br />

The company’s glass manufacturing facilities were<br />

established in Newark, Ohio, in 1900, and the early prismatic<br />

glass pieces were used to control gas mantles, carbon lamps,<br />

gas burners, and acetylene and oil lamps. Early refractors were<br />

used for gas streetlights, while reflectors were used in interior<br />

applications to enhance the efficiency of the gas mantles.<br />

During the early 1900s, Holophane engineers developed<br />

the initial method to measure both light intensity and<br />

distribution at one of the first photometric laboratories in the<br />

country, showcasing the famous Dibden photometer, the only<br />

one in the US with such a large range of capacity.<br />

By 1910, Holophane reflectors had become so popular<br />

that lamp manufacturers adopted the practice of advertising<br />

Holophane reflectors on every lamp carton and recommending<br />

their use with tungsten lamps. A company booklet dated 1918<br />

specifies the goals of street lighting: “To provide safety from<br />

collision, safety from attack, and convenience in recognizing the<br />

passer-by.” These goals were achieved by utilizing the company’s<br />

refractors, “giving highly efficient results.”<br />

Since its founding Holophane has innovated a myriad<br />

of innovative new products. Among them were significant<br />

industry firsts, such as: WallpackTM, cobrahead refractor,<br />

glass fluorescent lens, 2 X 4 injection molded fluorescent lens,<br />

integrally ballasted industrial luminaire, direct/indirect HID<br />

unit for industrial and retail, high-mast luminaire, high-mast<br />

lowering device, off-highway luminaire, UL listed hazardous<br />

area lighting, low-brightness efficient fluorescent lens,<br />

Equivalent Spherical Illumination lens, innovative specialty<br />

lighting for food processing and automobile paint inspection,<br />

high-wattage continuously dimmable HID electronic ballast,<br />

and thermal management system for T5 lamps.<br />

During WWII the company was awarded an Army/Navy<br />

“E” award for developing a signaling lens for the Navy that<br />

transmitted light in a frequency invisible to the human eye.<br />

In 1973 Holophane began designing and manufacturing its<br />

own HID Electromagnetic ballasts providing full lamp output,<br />

low watts loss and improved thermal characteristics for its own<br />

luminaires. The combination of borosilicate glass, optical design<br />

expertise, high performance ballasts, innovative product leadership<br />

and its own employee sales force has given Holophane a successful,<br />

highly respected position in the lighting marketplace.<br />

Some of the prestigious installations utilizing the company’s<br />

products include: Westminster Abbey, NBC Radio City<br />

Studios (the first inbuilt lighting in a ceiling), US House of<br />

Representatives and Senate assembly areas, Olympic Ice<br />

Hockey Stadium in Lake Placid, Queen Elizabeth Way in<br />

Ontario, Notre Dame Athletic Convocation Center, Boeing 747<br />

assembly facility, Newark Airport (NJ), San Francisco Airport,<br />

Dames Point Bridge in Jacksonville, Koin Tower in Portland,<br />

State Street in Chicago, The Embarcadero in San Francisco,<br />

street lighting for the Atlanta Olympics, and millions of other<br />

indoor, outdoor, and specialty lighting projects worldwide.<br />

Holophane Company became part of what is now Acuity<br />

Brands Inc. in July 1999.<br />

January 2006 41

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