Tag Archive for: mirror

TI45 f/4 Mt. Calcinaio Observatory (Italy) – The end of installation

The TI45 f/4 was finally tested with full success at Mr. Calcinaio Observatory – Radicofani (SI) Italy

From Left: Prof. Emanuele Pace (scientific manager of the project), Eng. Antonino Previti (Telescopi Italiani), Eng. Leonardo Priami (Telescopi Italiani), Claudio Dandolo (Telescopi Italiani)

New Molds for TI35 Astrograph models: Result

New molds for TI35 allow to stay within 0,02 mm of tolerance!!

Another TI45 f/4 is leaving….for Namibia sky

Another TI45 f/4 is leaving our company. It will be installed soon under Namibia sky.

From

New Molds for TI35 Astrograph models

New molds for TI35 carbon parts are ready!!

A DEA to check dimensional and geometrical tolerances on optics parts

A SEA during the measurement of a convex spherical mirror within 1 micron of precision

RAW image field correction test on a TI45 f/4

M106 field. A very good raw test on a TI45 f/4. Single 90 sec, unguided, uncalibrated frame, taken with a KAF16803 (37 x 37 mm CCD sensor). Sky was medium-bad (SQM about 20.1, Poor seeing about FWHM 2,6″).

A Quartz Lightweight Blank for a TI35 Astrograph

Holding a 362 mm diameter quartz blank in your hand and having the impression that it is made of plastic … it’s fantastic😃   –    Fused Silica (Quartz) performs an awesome thermal expansion coefficient of 5.4 x 10-7/ , 6 time less than borosilicate glasses, harder enough to allow better figuring process and advantage in terms of strength to density ratio.

TI55 lightweight Quartz primary mirror

The first big lightweight mirror, 562 mm diameter, f/2.9. An awesome piece to handle.

462 mm QUARTZ Blank ready to be figured

Fused Silica (Quartz) performs an awesome thermal expansion coefficient of 5.4 x 10-7/ , 6 time less than borosilicate glasses, harder enough to allow better figuring process and advantage in terms of strength to density ratio.

462 mm quartz blank