Positive eyepiece Meaning, Definition & Usage

Definitions
  1. an eyepiece consisting of two plano-convex lenses placed with their curved surfaces toward each other, and separated by a distance somewhat less than the focal distance of the one nearest eye, the image of the object viewed being beyond both lenses; called also, from the name of the inventor, Ramsden's eyepiece.
Definitions
  1. . See under Eyepiece.

Webster 1913