Q22-2000F

Q22-2000F

The Q22-2000F represents a breakthrough in manufacturing meter-class optics.

Q22-2000F, also known as the "Two Meter Polishing Center", is capable of polishing monolithic or light-weighted optics, and represents an important breakthrough in manufacturing meter-class optics, including significant improvements in performance, convergence, and overall cycle time reduction.

• Polishing size for concave or flat surfaces - up to 2.3m diameter
• Polishing size for convex surfaces - up to 1.7m diameter at a 30° max angle
• Capable of polishing plano, sphere, asphere, and freeform surface shapes
• Compatible with round, rectangular, elliptical and hexagonal apertures

20 hours, 2 MRF runs polishes a 1.1m surface to λ/70 rms.

As part of the acceptance test performed at our customer’s site, we polished a ~1.1 m diameter mirror with an inner diameter of  ~0.1 m and a radius of curvature of ~3 m in a low expansion material. The total polishing time was 20 hours, broken into 2 iterations of 14 hours and 6 hours, and took the surface from 84nm (λ/7) to 9nm (λ/70) rms. As the Q22-2000F was engineered to run autonomously, with remote monitoring, this run was performed overnight, without an MRF operator in attendance.

• 2 MRF Iterations:  14 hrs + 6 hrs = 20 hours total
• More than 9X improvement in rms figure error
• Overnight, unattended operation
• Fast, deterministic convergence on meter-class optics!!

BEFORE	AFTER
RMS = 84 nm (~λ/7)	RMS = 9 nm (~λ/70)

Engineered for optic safety

• Remote monitoring with multiple web cameras
• "Cancel run capability” – the ability to pause or cancel a run to do machine maintenance, or deal with power failures, and pick up where you left off (as opposed to having to do another metrology iteration)
• Semi-automated polishing program toolpath validation to ensure collisions do not occur
• Tethering of all hardware that could potentially fall on the optic