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2. List of instruments used in otorhinolaryngology, head and ...

   en.wikipedia.org/wiki/List_of_instruments_used...

   Head Mirror with head band: to focus light into the cavity under inspection; mirror is concave and is used with a Chiron lamp to produce a parallel beam of light; doctor views through the hole (average diameter of mirror is 3 & 1/2" & that of hole is 1/4") Head mounted lights with head band: to focus light into the cavity under inspection ...

3. Head mirror - Wikipedia

   en.wikipedia.org/wiki/Head_mirror

   A head mirror is mostly used for examination of the ear, nose and throat (ENT). It comprises a circular concave mirror , with a small hole in the middle, and is attached to a headband. The mirror is worn over the physician's eye of choice, with the concave mirror surface facing outwards and the hole directly over the physician's eye, providing ...

4. Optical microscope - Wikipedia

   en.wikipedia.org/wiki/Optical_microscope

   The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.

5. 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 ...

6. 50 Inventions From The Past That Were Amazingly Innovative - AOL

   www.aol.com/98-historical-inventions-were-ahead...

   It came with both head and tail lamps, a horn, and even a toolbox. ... it functions as a 3× magnifying glass, though its exact use is debated. ... slanting sides to deflect enemy fire and an ...

7. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   A photographic loupe for examining film and prints. A loupe (/ ˈ l uː p / 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.