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Loyd A. Jones

Loyd A. Jones is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Loyd A. Jones rather than just read about it. In short: Loyd Ancile Jones (April 12, 1884 – May 15, 1954) was an American scientist who worked for Eastman Kodak Company, where he was head of its physics department for many years. During World War I, he was also a major contributor to the development of naval camouflage.

Loyd A. Jones — main illustration
Loyd A. Jones — illustration

Key takeaways

  • Loyd A. Jones belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Loyd A. Jones to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Loyd A. Jones from memory before moving on to harder problems.

Reference excerpt

Loyd Ancile Jones (April 12, 1884 – May 15, 1954) was an American scientist who worked for Eastman Kodak Company, where he was head of its physics department for many years. During World War I, he was also a major contributor to the development of naval camouflage.

Background He was born Loyd Ancile Jones in York, Nebraska. He was educated at the University of Nebraska, where he received a bachelor's degree in 1908 and master's degree in science in 1910. He was also awarded an honorary doctorate from the University of Rochester in 1933.

Career Following graduate school, Jones moved to Washington D.C., where he worked for several years as a laboratory assistant at the U.S. Bureau of Standards doing research in photometry, colorimetry, spectro-photometry, spectroscopy, and retinal sensitivity. In 1912, he joined the scientific research staff at Eastman Kodak Company, where he became chief physicist in 1916, a position he continued in until his retirement (Behrens 2009, p. 201). His research at Eastman Kodak generally related to the subject of sensitometry.

Camouflage Research When the U.S. became involved in World War I, George Eastman offered to the U.S. Navy the expertise of Jones (who served in the U.S. Naval Reserves) and others for the purpose of researching naval camouflage in relation to optics and physics (Ackerman 1930, p. 310). Other people at the time argued that visual artists would be better equipped than scientists to develop camouflage. A compromise solution was reached, and on March 25, 1918, architect Harold Van Buskirk was placed in charge of a U.S. Navy camouflage unit, consisting of two major sections: A design section made up of artists, located in Washington D.C., headed by artist Everett L. Warner; and a research section made up largely of scientists, located at the Eastman laboratories in Rochester, New York, under the supervision of Jones (Van Buskirk 1919; Warner 1919). In connection with his research of naval camouflage, Jones and his staff developed in the laboratory an “experimental ocean,” which used an observation tank, artificial sun, movable sky, and other components that simulated outdoor viewing conditions, as miniature camouflaged ships were observed through a submarine periscope. He also developed an outdoor observation stage on the shore of Lake Ontario. Painted cut-out silhouettes of camouflaged ships were suspended from a framework, at a height that made the ships appear to be floating on the water (Jones 1919; Skerrett 1919; Scientific American 1919).

Inventions Jones was a prolific inventor. He was responsible for at least eighteen registered patents, and authored dozens of articles on such subjects as photometry, physical optics, illuminating engineering, colorimetry, photography and motion pictures. One of his wartime inventions was a scope-like observation device called a visibility meter (U.S. Patent No. 1,437,809), which measured a ship’s visibility in an ocean setting (Ackerman 1930).

Distinctions Jones served as President of the Optical Society of America (OSA) from 1930 to 1931, and as President of the Society of Motion Picture Engineers from 1924 to 1925. In 1943, he was awarded the Frederic Ives Medal by the Optical Society of America and he received the Progress Medal of the Royal Photographic Society (RPS) in 1948.

Further reading Ackerman, Carl W. (1930), George Eastman. Boston: Houghton Mifflin. ISBN 1-893122-99-9. Behrens, Roy R. (2002), False Colors: Art, Design and Modern Camouflage. Dysart, Iowa: Bobolink Books. ISBN 0-9713244-0-9. ___ (2009), Camoupedia: A Compendium of Research on Art, Architecture and Camouflage. Dysart, Iowa: Bobolink Books. ISBN 978-0-9713244-6-6. Jones, Loyd A. (1919), “Low Visibility Phase of Protective Coloration” in Journal of the Franklin Institute Vol 188 (September), pp. 363–387, and (October), pp. 507–533. Journal of the Optical Society of America (1943), “Dr. Loyd A. Jones, Ives medalist for 1943” Vol. 34 No 2, p. 61. Scientific American Supplement (1919), “A Theatre for Studying Camouflaged Ship Models,” (December 13), pp. 348–349. Skerrett, Robert G. (1919), “How We Put It Over on the Periscope” in The Rudder Vol 35 No 3 (March), pp. 97–102, and Vol 35 No 4 (April), pp. 175–179. Van Buskirk, Harold (1919), “Camouflage” in Transactions of the Illuminating Engineering Society Vol 14 (July 21), pp. 225–229. Warner, Everett L. (1919), “Fooling the Iron Fish: The Inside Story of Marine Camouflage” in Everybody’s Magazine (November), pp. 102–109. Yumibe, Joshua (2009), "'Harmonious Sensations of Sound by Means of Colors’: Vernacular Color Abstractions in Silent Cinema.” Film History Vol. 21 No 2, pp. 164–176.

See also Camouflage Everett L. Warner Harold Van Buskirk George Eastman Eastman Kodak Optical Society of America

References

External links https://web.archive.org/web/20100303055428/http://www.bobolinkbooks.com/Camoupedia/DazzleCamouflage.html

Worked examples

Example 1 — a first encounter with Loyd A. Jones

Start with the simplest possible case. Write down what Loyd A. Jones claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Loyd A. Jones before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Loyd A. Jones ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Loyd A. Jones

In research
Loyd A. Jones appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Loyd A. Jones in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Loyd A. Jones is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1884 births, 1954 deaths, 20th-century American physicists, so understanding it makes those chapters shorter.
In everyday life
Look for Loyd A. Jones outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Loyd A. Jones in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Loyd A. Jones means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Loyd A. Jones out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Loyd A. Jones in simple terms?

Loyd Ancile Jones (April 12, 1884 – May 15, 1954) was an American scientist who worked for Eastman Kodak Company, where he was head of its physics department for many years. During World War I, he was also a major contributor to the development of naval camouflage.

Why does Loyd A. Jones matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Loyd A. Jones?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Loyd A. Jones.

Tags

  • 1884 births
  • 1954 deaths
  • 20th-century American physicists
  • American optical physicists
  • Fellows of the American Physical Society
  • Kodak people
  • People from York, Nebraska
  • Presidents of Optica (society)
  • University of Nebraska–Lincoln alumni

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