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  2. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    Phosphor layer on the inner side of the screen; emits light when struck by the electron beam. Filament for heating the cathode. Graphite layer on the inner side of the tube. Rubber or silicone gasket where the anode voltage wire enters the tube (anode cup) Cathode. Air-tight glass body of the tube.

  3. Ray-Ban - Wikipedia

    en.wikipedia.org/wiki/Ray-Ban

    Ray-Ban is a brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is best known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to Italian eyewear conglomerate Luxottica Group for a reported $640 million.

  4. Titanium(II) oxide - Wikipedia

    en.wikipedia.org/wiki/Titanium(II)_oxide

    Titanium(II) oxide (Ti O) is an inorganic chemical compound of titanium and oxygen. It can be prepared from titanium dioxide and titanium metal at 1500 °C. [1] It is non-stoichiometric in a range TiO 0.7 to TiO 1.3 and this is caused by vacancies of either Ti or O in the defect rock salt structure. [1]

  5. Optical tweezers - Wikipedia

    en.wikipedia.org/wiki/Optical_tweezers

    Ray optics explanation (focused laser). In addition to keeping the bead in the center of the laser, a focused laser also keeps the bead in a fixed axial position: The momentum change of the focused rays causes a force towards the laser focus, both when the bead is in front (left image) or behind (right image) the laser focus.

  6. Titanium dioxide - Wikipedia

    en.wikipedia.org/wiki/Titanium_dioxide

    Titanium dioxide, also known as titanium(IV) oxide or titania / t aɪ ˈ t eɪ n i ə /, is the inorganic compound derived from titanium with the chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. It is a white solid that is insoluble in water, although mineral forms can appear black.

  7. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    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.

  8. Scanning electron microscope - Wikipedia

    en.wikipedia.org/wiki/Scanning_electron_microscope

    Analog type SEM. A scanning electron microscope ( SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that contain information about the surface topography and composition of the sample.

  9. Phase-contrast imaging - Wikipedia

    en.wikipedia.org/wiki/Phase-contrast_imaging

    Phase-contrast imaging is commonly used in atomic physics to describe a range of techniques for dispersively imaging ultracold atoms. Dispersion is the phenomena of the propagation of electromagnetic fields (light) in matter. In general, the refractive index of a material, which alters the phase velocity and refraction of the field, depends on ...