Drawing upon a highly experienced team of optical designers, engineers,
and skilled production staff and benefiting from a unique high
stability manufacturing environment, Optical Surfaces has been the
preferred supplier to many international astronomy research groups.
Notable projects completed by Optical Surfaces include the Narval
stellar spectropolarimeter installed on the 2m Bernard Lyot Telescope
in the French Pyrenees, the High Resolution Optical Spectrograph (HROS)
based on the 8m Gemini Telescope in Chile, the Fibre-fed Extended Range
Optical Spectrograph (FEROS) at the European Southern Observatory (ESO)
and the ESPaDOnS spectrograph at the Canada-France-Hawaii telescope
A spectrograph is an instrument that is used to study the chemical /
physical conditions that exist through a cross-section of space.
Combined with an astronomical telescope a spectrograph can reveal the
details that are stored in the spectral distribution of light from a
distant astronomical body.
With the main workshops and test facilities deep underground in an area
excavated from solid chalk, temperatures in Optical Surfaces Ltd.
production facility remain constant year-round and vibration is
practically non-existent. These are important considerations when
making, mounting and testing high precision telescope spectrograph
optics. Benefiting from this unique stabilised environment Optical
Surfaces Ltd has developed a reputation for designing and producing
large and demanding telescope spectrograph optics (aspherics, mirrors,
prisms, lenses and flats) that would stretch the limits of conventional
optical fabrication techniques.
Investment in a range of interferometers allows one-to-one testing of
even the largest diameter spectrograph optics. Topographic and fringe
analysis provides precise testing of surface roughness and confirms the
wavefront of various surface forms. Operating a rolling program for
calibration of test optics where possible to national standards and
production approval to ISO 9001-2000 ensures that the quality of
telescope spectrograph optics from Optical Surfaces Ltd. is second to
For further information visit http://www.optisurf.com/