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2. Perfect mirror - Wikipedia

   en.wikipedia.org/wiki/Perfect_mirror

   A very complex dielectric mirror can reflect up to 99.999% of the light incident upon it, for a narrow range of wavelengths and angles. A simpler mirror may reflect 99.9% of the light, but may cover a broader range of wavelengths. Almost any dielectric material can act as a perfect mirror through total internal reflection. This effect only ...

3. Curved mirror - Wikipedia

   en.wikipedia.org/wiki/Curved_mirror

   A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light. Unlike convex mirrors, concave mirrors show different image types depending on the distance between the object and the mirror.

4. Catadioptric system - Wikipedia

   en.wikipedia.org/wiki/Catadioptric_system

   The two surfaces of the reflector have different radii to correct the aberration of the spherical mirror. Light passes through the glass twice, making the overall system act like a triplet lens. [3] Mangin mirrors were used in searchlights, where they produced a nearly true parallel beam.

5. Digital light processing - Wikipedia

   en.wikipedia.org/wiki/Digital_Light_Processing

   Light from the lamp enters a reverse-fisheye, passes through the spinning color wheel, crosses underneath the main lens, reflects off a front-surfaced mirror, and is spread onto the DMD (red arrows). From there, light either enters the lens (yellow) or is reflected off the top cover down into a light-sink (blue arrows) to absorb unneeded light.

6. Jay-Z Says He and Beyoncé 'Will Have to Sit Our ... - AOL

   www.aol.com/lifestyle/jay-z-says-beyonc-sit...

   Jay-Z made rare comments about his wife Beyoncé and their three children after being accused in a civil lawsuit of raping a 13-year-old girl along with Sean "Diddy" Combs in 2000.. On Sunday, Dec ...

7. 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.