field lens

noun Optics.

the lens in an eyepiece that is farthest from the eye and that deviates rays toward the center of the eye lens.

Origin of field lens

First recorded in 1830–40

Words nearby field lens

field ion microscope, field jacket, field lark, field larkspur, field layer, field lens, field magnet, field marshal, field mint, field mouse, field mushroom

Example sentences from the Web for field lens