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2. Coddington magnifier - Wikipedia

   en.wikipedia.org/wiki/Coddington_magnifier

   A Coddington magnifier is a magnifying glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the rays to those close to the axis, which minimizes spherical aberration. This allows for greater magnification than a conventional magnifying glass, typically 10× up to 20×. Most single lens ...

3. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   A pen seen through a magnifying glass Jim Hutton as detective Ellery Queen, posing with a magnifying glass. A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. Beyond its primary function of magnification, this simple yet ingenious tool serves a ...

4. Stanhope lens - Wikipedia

   en.wikipedia.org/wiki/Stanhope_lens

   Stanhope lens with case, early 1800s. A Stanhope lens is a simple, one-piece microscope invented by Charles, the third Earl of Stanhope.It is a cylinder of glass with each end curved outwards, one being more convex than the other.

5. Magnifier - Wikipedia

   en.wikipedia.org/wiki/Magnifier

   A magnifier is a device used for magnification. Magnifier can also refer to: Magnifying glass, an optical device for magnification; Screen magnifier, software that magnifies part of a computer screen Magnifier (Windows), a screen magnifier for Microsoft Windows; Magnifier (iOS), a magnifying glass app for iOS; Magnifier, a magnifying glass app ...

6. Dome magnifier - Wikipedia

   en.wikipedia.org/wiki/Dome_magnifier

   A dome magnifier is a dome-shaped magnifying device made of glass or acrylic plastic, used to enlarge words on a page or computer screen. They are plano-convex lenses : the flat (planar) surface is placed on the object to be magnified, and the convex (dome) surface provides the enlargement.

7. Virtual Magnifying Glass - Wikipedia

   en.wikipedia.org/wiki/Virtual_Magnifying_Glass

   Virtual Magnifying Glass is designed for the visually impaired and others who need to magnify part of the computer display. Unlike most similar programs, it does not open a separate program window for the magnification but instead puts a movable magnifying glass [ 1 ] on the screen.

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9. Optical microscope - Wikipedia

   en.wikipedia.org/wiki/Optical_microscope

   The stage is a platform below the objective lens which supports the specimen being viewed. In the center of the stage is a hole through which light passes to illuminate the specimen. The stage usually has arms to hold slides (rectangular glass plates with typical dimensions of 25×75 mm, on which the specimen is mounted). [citation needed]