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What (who) is object lens - definition
OPTICAL ELEMENT THAT GATHERS LIGHT FROM THE OBJECT BEING OBSERVED AND FOCUSES THE LIGHT RAYS TO PRODUCE A REAL IMAGE
Objective glass; Object glass; Object lens; Objective lens; Microscope objective lens; Microscope objective; Objective lenses; Object lenses; Object glasses; Objective glasses; Infinity correction; Infinity Correction; Objective (lens); Microscope Objective
![Keck 2 Telescope]]](https://commons.wikimedia.org/wiki/Special:FilePath/KeckObservatory20071013.jpg?width=200 "Keck 2 Telescope]]")
![Two Leica [[oil immersion]] microscope objective lenses; left 100×, right 40×.](https://commons.wikimedia.org/wiki/Special:FilePath/Leica EpifluorescenceMicroscope ObjectiveLens.jpg?width=200 "Two Leica [[oil immersion]] microscope objective lenses; left 100×, right 40×.")
![aperture]] 1:1.4](https://commons.wikimedia.org/wiki/Special:FilePath/Lens Canon EF 50mm f1.4.jpg?width=200 "aperture]] 1:1.4")
object glass
¦ noun old-fashioned term for objective (in sense 2).
Lens (hydrology)
CONVEX LAYER OF FRESH GROUNDWATER THAT FLOATS ON TOP OF DENSER SALTWATER
User:Nsaum75/Lens (groundwater); User:Nsaum75/Lens (Hydrology); User:Nsaum75/Lens (hydrology); Lens (groundwater); Freshwater lens; Ghyben-Herzberg lenses; Ghyben–Herzberg lens; Ghyben-Herzberg lens; Ghyben/Herzberg lens; Groundwater lens
In hydrology, a lens, also called freshwater lens or Ghyben-Herzberg lens, is a convex-shaped layer of fresh groundwater that floats above the denser saltwater and is usually found on small coral or limestone islands and atolls. This aquifer of fresh water is recharged through precipitation that infiltrates the top layer of soil and percolates downward until it reaches the saturated zone.
Lens (plant)
GENUS OF PLANTS
Lens (genus); Lentilla
Lens is a genus of flowering plant in the legume family mostly known for its edible seeds, which are referred to as lentils. Lens contains four species of small, erect or climbing herbs with pinnate leaves, small inconspicuous white flowers, and small flattened pods.
Wikipedia
Objective (optics)
In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, binoculars, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses.
