2023.230039 discusses diffraction-limited visible imaging for large aperture telescopes. The deformable mirror used in adaptive optics can change its surface to instantly correct the static ...

Some telescopes are surrounded by small ... per inch of aperture than just about any other. At the hearts of these outstanding, handcrafted instruments are their optics. The mirrors inside these ...

As the ultra-precision core component of telescope systems, the surface shape accuracy of large-aperture aspheric mirrors often requires to meet nanometer level, which is a severe challenge for ...

Optical sparse aperture telescopes utilise an array of smaller, discrete subapertures to synthesise a large effective aperture ... and tilt errors across segmented mirrors [2].

The Simons Observatory (SO) has completed the installation of its Large Aperture Telescope (LAT ... with the final step being the placement of its two six-metre mirrors. Shortly after completion in ...

A typical layout used for testing large-aperture mirrors with a CGH as the null lens. The surface shape of the equivalent element is obtained by scaling a large-aperture mirror along the optical axis.