Max Levy (March 9, 1857 – July 30, 1926) was an American inventor and scientist recognized for invention of precision machinery for the making of

half-tone Halftone is the reprographic technique that simulates continuous-tone imagery through the use of dots, varying either in size or in spacing, thus generating a gradient-like effect.Campbell, Alastair. The Designer's Lexicon. ©2000 Chronicle, ...

screens which were used in the production of relief printing plates by newspapers and magazines. New York Times;Max Levy, scientist, inventor and one of the pioneers of the photo-engraving business;August 1, 1926
/ref> The

New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid ...

called Levy "one of the pioneers of photo-engraving". He was also the inventor of the counting chamber for

haemocytometer The hemocytometer (or haemocytometer) is a counting-chamber device originally designed and usually used for counting blood cells. The hemocytometer was invented by Louis-Charles Malassez and consists of a thick glass microscope slide with a ...

for which he received the Edward Longstreth medal from the

Franklin Institute The Franklin Institute is a science museum and the center of science education and research in Philadelphia, Pennsylvania. It is named after the American scientist and statesman Benjamin Franklin. It houses the Benjamin Franklin National Memor ...

References

{{DEFAULTSORT:Levy, Max 1857 births 1926 deaths 20th-century American inventors