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

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

    Instrument Uses 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")

  3. Surgical lighting - Wikipedia

    en.wikipedia.org/wiki/Surgical_lighting

    A surgical light – also referred to as an operating light or surgical lighthead – is a medical device intended to assist medical personnel during a surgical procedure by illuminating a local area or cavity of the patient. A combination of several surgical lights is often referred to as a “surgical light system”.

  4. Head mirror - Wikipedia

    en.wikipedia.org/wiki/Head_mirror

    Head mirror A doctor using a head mirror to illuminate his patient's nasal passages.. A head mirror is a simple diagnostic device, stereotypically worn by physicians, but less so in recent decades as they have become somewhat obsolete.

  5. List of instruments used in ophthalmology - Wikipedia

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

    This page was last edited on 9 February 2024, at 17:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. Halogen lamp - Wikipedia

    en.wikipedia.org/wiki/Halogen_lamp

    The first lamps used only tungsten for filament supports, but some designs use molybdenum – an example being the molybdenum shield in the H4 twin filament headlight for the European Asymmetric Passing Beam. For a fixed power and life, the luminous efficacy of all incandescent lamps is greatest at a particular design voltage. Halogen lamps ...

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