| Share
 

John Dollond

Dollond, John (dŏlˈənd) [key], 1706–61, English optician and inventor. A silk weaver, he taught himself languages, mathematics, and science, becoming a noted scholar as well as a scientist. He invented the achromatic lens, which led to the construction of telescopes free of color fringes, and the heliometer, used in astronomical measurement.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: Technology: Biographies

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring