viewfinder

English Thesaurus

1. optical device that helps a user to find the target of interest (noun.artifact)

hypernym	:	optical device,
definition	:	a device for producing or controlling light (noun.artifact)

part meronym	:	camera, photographic camera,
definition	:	equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) (noun.artifact)

part meronym	:	gun-sight, gunsight,
definition	:	a sight used for aiming a gun (noun.artifact)

part meronym	:	scope, telescope,
definition	:	a magnifier of images of distant objects (noun.artifact)