11/19/2003 • Microscopy / Imaging

High Resolution Spectropolarimeter

Optical Surfaces has been selected to supply the key spectrograph optics to the Observatoire Midi-Pyrénées in France for the Narval project at the Bernard Lyot telescope (TBL). The Narval instrument will require the company to produce two matching off-axis parabolic mirrors from a single f 2.2 Zerodur parent of 680-mm diameter. The two off-axis collimating mirrors will be finished to achieve an uniform lambda/15 rms. over the whole working area to ensure the required high throughput and ultra-low dispersion. The instrument is an adaptation of the Espandons spectropolarimeter design that currently acts as a bright time instrument for general community use at the Canada-France-Hawaii telescope.
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Optical Surfaces Ltd.

Godstone Road
Surrey CR8 5AA Kenley

Phone: +44/(0)181/668-6126
Fax: +44/(0)181/660-7743