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2. House series (Lichtenstein) - Wikipedia

   en.wikipedia.org/wiki/House_series_(Lichtenstein)

   Lichtenstein initiated his investigation of optical illusion as he used Ben-day dots to create overlapping planes in his paintings Man With Folded Arms (1962) and Magnifying Glass (1963), and he progressed his exploration of perspective to small-scale sculptures in the 1970s and '80s as he created the illusion of three-dimensionality in the ...

3. 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

4. Zograscope - Wikipedia

   en.wikipedia.org/wiki/Zograscope

   Large table-top viewer for vue d'optique prints. Late 18th century An example of a picture designed for viewing under a zograscope equipped with a mirror, its text written right-to-left. A zograscope is an optical device for magnifying flat pictures that also has the property of enhancing the sense of the depth shown in the picture

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

   The postage stamp appears larger with the use of a magnifying glass. Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something.

7. GrandPad review: A grand tablet for grandparents, but too ...

   www.aol.com/lifestyle/grandpad-review-grand...

   Articles offers curated general-interest stories (but no upsetting daily news, thankfully) from various sources, and the Toolbox app provides a magnifying glass, a flashlight and a calculator.