Abstract

The technical possibilities of the Lytkarino Optical Glass Factory make it possible to manufacture optics from the stage of melting and annealing the blanks to the fabrication of finished astronomical mirrors. This paper describes the factory’s experience in investigating blanks and finished segments made from Astrositall for telescopes with compound segmented mirrors. An arrangement is shown for monitoring the figure of the spherical surface of the segments of a compound mirror, using a Fizeau lens. To implement the arrangement, a large-diameter Fizeau lens was fabricated and a special test stand was developed and fabricated that makes it possible to monitor both the spherical surface of the lens itself and a spherical element of the compound mirror.

© 2013 Optical Society of America

Adaptation of the Schupmann Medial Telescope to a Large Scale Astronomical Optical System

John J. Villa
Appl. Opt. 11(8) 1814-1821 (1972)

Reflective astronomical telescopes with a large field of view and a wide wave band

Xiaoheng Wang and Jun Zhu
Appl. Opt. 61(17) 5040-5048 (2022)

Fabrication of Paraboloidal Mirror Segments for a Large Solar Furnace

Takemaro Sakurai and Kōrō Shishido
Appl. Opt. 3(7) 813-816 (1964)

Medium-precision null-screen testing of off-axis parabolic mirrors for segmented primary telescope optics: the Large Millimeter Telescope

Rufino Díaz-Uribe
Appl. Opt. 39(16) 2790-2804 (2000)

Static tool influence function for fabrication simulation of hexagonal mirror segments for extremely large telescopes

Dae Wook Kim and Sug-Whan Kim
Opt. Express 13(3) 910-917 (2005)