Dome magnifier
From Infogalactic: the planetary knowledge core
Lua error in package.lua at line 80: module 'strict' not found. A dome magnifier is a dome-shaped magnifying device made of acrylic plastic typically that enlarges words on a page or computer screen into a larger image [1]. Most dome magnifiers' perimeters are from 3 to 7 inches. They usually magnify to ×4 [2]. Dome magnifiers are mainly used by the visually impaired. They are good for reading maps or basic text and their inherent 180° design naturally amplifies illumination from ambient side-light.
