VLT Survey Telescope :: Completed projects :: Astronomical Mirrors and Large optics :: Astronomical optics :: LZOS
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Major completed projects


VLT Survey Telescope, Osservatorio Astronomico di Capodimonte Napoli


In 2001 the contract for manufacturing of the unique set of optics intended for VLT Telescope was (VLT Survey Telescope, Osservatorio Astronomico di Capodimonte Napoli, oacosf.na.astro.it/vst). The Primary mirror has diameter 2650 mm and the Secondary one - 938 mm having a-sphericity aprox. 100 microns at each the mirrors.

The primary mirror VST is an adaptive one and manufactured in shape of meniscus with thickness 140 mm, and having thickness to diameter ratio as 1:19. Nowadays LZOS company is producing the second similar mirror.

Geometrical Encircled Energy (80%) on axis, systems of two mirrors after additional subtraction of the third power spherical aberration coefficients, the third power astigmatism, triangular coma and square astigmatism equals 0.12 second of angle.


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