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  2. Curved mirror - Wikipedia

    en.wikipedia.org/wiki/Curved_mirror

    A convex mirror diagram showing the focus, focal length, centre of curvature, principal axis, etc. A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. [1] Convex mirrors reflect light outwards, therefore they are not used to focus light.

  3. Reflecting telescope - Wikipedia

    en.wikipedia.org/wiki/Reflecting_telescope

    A number of variations are common, with varying numbers of mirrors of different types. The Kutter (named after its inventor Anton Kutter) style uses a single concave primary, a convex secondary and a plano-convex lens between the secondary mirror and the focal plane, when needed (this is the case of the catadioptric Schiefspiegler). One ...

  4. Catadioptric system - Wikipedia

    en.wikipedia.org/wiki/Catadioptric_system

    Mangin mirrors were used in searchlights, where they produced a nearly true parallel beam. Many Catadioptric telescopes use negative lenses with a reflective coating on the backside that are referred to as “Mangin mirrors”, although they are not single-element objectives like the original Mangin, and some even predate Mangin's invention.

  5. Optical telescope - Wikipedia

    en.wikipedia.org/wiki/Optical_telescope

    The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light. An optical telescope is a telescope that gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.

  6. Real image - Wikipedia

    en.wikipedia.org/wiki/Real_image

    Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted. As the object approaches the focal point the image approaches infinity, and when the object passes the focal point the image becomes virtual and is not ...

  7. Louisiana residents list crime as one of state's most ... - AOL

    www.aol.com/louisiana-residents-list-crime-one...

    (The Center Square) — In Louisiana, violent and property crime numbers across the state have dropped from recent years. Despite this, a survey earlier this year from the Manship School at LSU ...

  8. 23 Car Accessories Under $50 That’ll Make You Say “Vroom ...

    www.aol.com/lifestyle/23-car-accessories-under...

    Buy Now: amazon.com #3 Keep Your Car Tidy And Trash-Free With The Car Trash Can, A Convenient And Compact Container That Fits Neatly In Your Vehicle. Review: "These mini trash cans are super ...

  9. Virtual image - Wikipedia

    en.wikipedia.org/wiki/Virtual_image

    The image in a plane mirror is not magnified (that is, the image is the same size as the object) and appears to be as far behind the mirror as the object is in front of the mirror. A diverging lens (one that is thicker at the edges than the middle) or a concave mirror forms a virtual image. Such an image is reduced in size when compared to the ...