Webb's Mirrors - NASA Science
网页Each of the primary mirror's 18 hexagonal-shaped mirror segments is 1.32 meters (4.3 feet) in diameter, flat to flat. (Webb's circular secondary mirror is 0.74 meters in diameter.) The mirror segments are made of beryllium which gives them the …
Segmented mirror - Wikipedia
网页Segmented mirrors are typically hexagonal and arranged in a honeycomb pattern. A segmented mirror is an array of smaller mirrors designed to act as segments of a single large curved mirror. The segments can be either spherical or asymmetric (if they are part of a larger parabolic reflector [1]).
James Webb’s hexagonal image array shows its mirror’s shape
网页2022年2月19日 · Now, in this new image, you can see the 18 points of light arranged into a hexagonal shape which represents the hexagonal shape of the mirror. This is due to the …
Webb Team Brings 18 Dots of Starlight Into Hexagonal Formation
网页2022年2月18日 · To complete the first stage of alignment, the team moved the primary mirror segments to arrange the dots of starlight into a hexagonal image array (bottom). Each dot of starlight is labeled with the corresponding mirror segment that captured it.
Honeycomb Mirrors Make NASA’s Webb the Most Powerful …
网页2018年12月7日 · NASA’s James Webb Space Telescope requires a primary mirror so large that it would not fit inside any existing rockets as one single, large mirror. Because of this, Webb is equipped with a revolutionary set of 18 hexagonal mirror segments that are able to fold to fit inside the rocket fairing.
Hexagonal Mirror Array - NASA Marshall Space Flight Center …
网页Each hexagon mirror has a spherical surface to approximate a parabolic concentrator when combined into the entire 18-foot diameter array. The aluminum mirrors were polished with a diamond turning machine that creates a glass-like reflective finish on metal.
Here's Exactly how Engineers Are Aligning JWST's Segmented Mirrors
网页2022年2月23日 · Engineers for the James Webb Space Telescope are in the midst of an intricate, three-month-long process of aligning the telescope’s 18 separate mirror segments to work together as one giant,...
网页hysteresis-free electrostatic actuators to deform a continuous or segmented mirror facesheet. In the case of the Hex-TTP DM, these actuators have been adapted to an array of hexagonal surfaces. A schematic of a seven-segment subsection of a micro-mirror array is illustrated in Figure 1. Each
Hexagonal Mirror Array : NASA/Marshall Space Flight Center : …
网页1999年4月20日 · This image shows optics physicist, Vince Huegele, examining one of the 144-segment hexagonal mirrors of the 18-foot diameter array at the MSFC solar concentrator test stand. NASA's Space Optics Manufacturing Technology Center has been working to expand our view of the universe via sophisticated new …
Webb Space Telescope Team Brings 18 Dots of Starlight
网页2022年2月20日 · To complete the first stage of alignment, the team moved the primary mirror segments to arrange the dots of starlight into a hexagonal image array (bottom). Each dot of starlight is labeled with the corresponding mirror segment that captured it.