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2. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   Magnifying glass on an arm lamp. The magnification of a magnifying glass depends upon where it is placed between the user's eye and the object being viewed, and the total distance between them. The magnifying power is equivalent to angular magnification (this should not be confused with optical power, which is a different

3. eSight - Wikipedia

   en.wikipedia.org/wiki/ESight

   eSight includes two HD color displays, one in front of each eye, with prescription lenses tailored to the user's particular prescription. The displays integrate dual independent, high contrast OLED screens, 1024x768 resolution and a 37.5 degree field-of-view.

4. NOBLEX E-Optics GmbH - Wikipedia

   en.wikipedia.org/wiki/NOBLEX_E-Optics_GmbH

   NOBLEX E-Optics GmbH, formerly Docter Optics, is a German manufacturer of optics, including binoculars, rifle scopes, spotting scopes, red dot sights, flashlights and reading glasses. Its headquarters are in Eisfeld , Thuringia, Germany , where most of the products are developed and manufactured.

5. 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 ...

6. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   By convention, for magnifying glasses and optical microscopes, where the size of the object is a linear dimension and the apparent size is an angle, the magnification is the ratio between the apparent (angular) size as seen in the eyepiece and the angular size of the object when placed at the conventional closest distance of distinct vision: 25 ...

7. Sight (device) - Wikipedia

   en.wikipedia.org/wiki/Sight_(device)

   Mark III free gun reflector sight mk 9 variant. Another type of optical sight is the reflector (or "reflex") sight, a generally non-magnifying optical device that allows the user to look through a glass element and see a reflection of an illuminated aiming point or some other image superimposed on the field of view. [7]