Origin of Huygens eyepiece
How to use Huygens eyepiece in a sentence
Before beginning an exposure the focus is adjusted by means of a high-power positive eyepiece.Photographs of Nebul and Clusters|James Edward Keeler
Looking through the eyepiece, the young inventor stood as though transfixed.Tom Swift and His Giant Telescope|Victor Appleton
Beware of the popular error that an object held close in front of a telescope can be seen by an observer at the eyepiece.A Text-Book of Astronomy|George C. Comstock
The attention of the world thus once awakened, Huygens and Cassini applied themselves to ascertain the figure of the earth.
Insert the eyepiece micrometer inside the ocular and adjust the stage micrometer on the stage of the microscope.The Elements of Bacteriological Technique|John William Henry Eyre