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2. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/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 variety of purposes. It can be employed to focus sunlight, harnessing the Sun's rays to create a concentrated hot ...

3. A magnifying mirror is a travel must-have for anyone over the ...

   www.aol.com/lifestyle/a-magnifying-mirror-is-a...

   The Kintion Pocket Mirror provides a portable, two-sided compact (with each mirror side measuring a generous 3.3 by 2.5 inches) that is ideal for slipping into your purse or weekender. One side ...

4. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a size ratio called optical magnification. When this number is less than one, it refers to a reduction in size, sometimes called de-magnification.

5. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   A photographic loupe for examining film and prints. A loupe (/ ˈluːp / LOOP) is a simple, small magnification device used to see small details more closely. [ 1 ] They generally have higher magnification than a magnifying glass, and are designed to be held or worn close to the eye. A loupe does not have an attached handle, and its focusing ...

6. Eyepiece - Wikipedia

   en.wikipedia.org/wiki/Eyepiece

   An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is named because it is usually the lens that is closest to the eye when someone looks through an optical device to observe an object or sample. The objective lens or mirror collects light from an object or ...

7. History of optics - Wikipedia

   en.wikipedia.org/wiki/History_of_optics

   History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...