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2. 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 ...

3. 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 ...

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. 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 ...

6. Reflector sight - Wikipedia

   en.wikipedia.org/wiki/Reflector_sight

   A view through the Mark III Free Gun Reflector Sight, first produced in 1943, used on British army guns, naval guns, and as a pilot sight and a defensive gun sight on aircraft. The reticle image in this sight is produced by an optical collimator bounced off a beam splitter. The dot remains on the target even though the viewer's head is moved ...

7. Mirror - Wikipedia

   en.wikipedia.org/wiki/Mirror

   A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...