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2. Ultra low expansion glass - Wikipedia

   en.wikipedia.org/wiki/Ultra_low_expansion_glass

   Hubble Space Telescope mirror made out of ULE glass. There are many applications for ULE, but by far the most common is for mirrors and lenses for telescopes in both space and terrestrial settings. One of the most well known examples of the use of ULE is in the Hubble Space Telescope's mirror.

3. Zerodur - Wikipedia

   en.wikipedia.org/wiki/Zerodur

   The Keck II Telescope showing the segmented primary mirror made of Zerodur. The main applications for Zerodur include telescope optics in astronomy [2] and space applications, [3] lithography machines for microchips and displays, [4] and inertial measurements systems for navigation.

4. First-surface mirror - Wikipedia

   en.wikipedia.org/wiki/First-surface_mirror

   Technicians assemble 6 of the 18 first-surface mirrors used in the James Webb Space Telescope. A first-surface mirror or front-surface mirror (also commonly abbreviated FS mirror or FSM) is a mirror with the reflective surface being above a backing, as opposed to the conventional, second-surface mirror with the reflective surface behind a ...

5. Primary mirror - Wikipedia

   en.wikipedia.org/wiki/Primary_mirror

   The largest optical telescope in the world as of 2009 to use a non-segmented single-mirror as its primary mirror is the 8.2 m (27 ft) Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea Observatory on Hawaii since 1997; [3] [better source needed] however, this is not the largest diameter single mirror in a telescope, the U.S./German/Italian Large Binocular ...

6. Honeycomb mirror - Wikipedia

   en.wikipedia.org/wiki/Honeycomb_mirror

   A honeycomb mirror is a large mirror usually used as the primary mirror in astronomical reflecting telescopes whose face is supported by a ribbed structure that resembles a honeycomb. [2] The design provides sufficient rigidity for ultra-high-precision optics while reducing the weight of the mirror. The reduced weight, in turn, allows smaller ...

7. 40 of Walmart's best after Christmas sales: Planners, TVs ...

   www.aol.com/lifestyle/walmart-after-christmas...

   Get deals on holiday storage, 2024 planners, space heaters and more during Walmart's after-Christmas sales. 40 of Walmart's best after Christmas sales: Planners, TVs, space heaters and more Skip ...

8. This $40 mirror is 'like trying on clothes in a super fancy ...

   www.aol.com/lifestyle/gold-arch-mirror-walmart...

   This stunning floor-length mirror can be used in several ways: as a standing floor mirror, leaning against a wall or mounted onto the wall — the design options are endless. $40 at Walmart

9. Optical Telescope Element - Wikipedia

   en.wikipedia.org/wiki/Optical_Telescope_Element

   The mirror assembly from the front with primary mirrors attached, November 2016 The secondary mirror being cleaned with carbon dioxide snow. Optical Telescope Element (OTE) is a sub-section of the James Webb Space Telescope, a large infrared space telescope launched on 25 December 2021, [1] consisting of its main mirror, secondary mirrors, the framework and controls to support the mirrors, and ...