For the past 25 years, Imagine Optic’s HASO family of wavefront sensors and optical metreology systems has relied on Shack-Hartman wavefront measurement. This technology was originaly developed for the metrology of primary mirrors, and subsequently used in adaptive optics systems on telescopes. Its track record now makes it one of the most trusted technology  for telescope alignment and characterization.

The drive of Imagine Optic when developing HASOs was to deliver the most accurate and robust instrument for people to perform optical characterization and alignment. Its robustness, accuracy, dynamics, and linearity have made the HASOs a popular choice in the astronomics community for characterizing and preparing even the most extreme and advanced instruments, among them :

• metrology of the primary mirrors before assembly of the HERSCHEL space observatory, or onsite for the CFHT.
• alignment of the ExAO systems and wavefront calibration for GPI or SPHERE.
• alignment of the whole GAIA space telescope, and DKIST.
• characterization of deformable mirrors for TMT NFIRAOS.
• characterization of the subsystems and components of LIRGO and TMT.

This illustrates how much HASO is a trusted technology for telescope alignment and characterization, and here at Imagine Optic we are thankful for the trust of the astrophysics community and proud of our contribution to these programs. A more comprehensive list of instruments and experimentations that took advantage of the HASOs reference capabilities is available here.

If you’re interested in finding out more about our line of Wavefront Sensors and Optical Metrology Systems, you can reach us at or through the contact form (red enveloppe on the side).