- Types:
- show 23 types...
- hide 23 types...
-
anastigmat
compound lens or lens system designed to be free of astigmatism and able to form approximately point images
-
anastigmatic lens
a lens designed to correct astigmatism
-
camera lens, optical lens
a lens that focuses the image in a camera
-
compound lens
a lens system consisting of two or more lenses on the same axis
-
condenser, optical condenser
lens used to concentrate light on an object
-
contact, contact lens
a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication
-
converging lens, convex lens
lens such that a beam of light passing through it is brought to a point or focus
-
crown lens
a lens made of optical crown glass
-
concave lens, diverging lens
a lens such that a parallel beam of light passing through it is caused to diverge or spread out
-
eyepiece, ocular
combination of lenses at the viewing end of optical instruments
-
field lens
the lens that is farthest from the eye in an optical device with more than one lens
-
Fresnel lens
lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
-
intraocular lens
an artificial lens that is implanted into the eye of someone to replace a damaged natural lens or someone who has had a cataract removed
-
meniscus
(optics) a lens that is concave on one side and convex on the other
-
eyeglass, monocle
lens for correcting defective vision in one eye; held in place by facial muscles
-
object glass, object lens, objective, objective lens
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
-
Abbe condenser
a condenser having 2 or 3 lenses with wide aperture for use in microscopes
-
achromatic lens
a compound lens system that forms an image free from chromatic aberration
-
closeup lens
a photographic lens with a short focal length used to take pictures at short ranges
-
portrait lens
a compound camera lens with a relatively high aperture
-
sunglass
a convex lens that focuses the rays of the sun; used to start a fire
-
telephoto lens, zoom lens
a camera lens that magnifies the image
-
fisheye lens, wide-angle lens
a camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the center and increasingly distorted in the periphery
