Advantages
Spherical Lenses, Aspheric Lenses, Prisms, and More
QED's family of Q22 Magnetorheological Finishing (MRF®) computer-controlled polishing systems deterministically produce better, faster, and cheaper high-precision optics. The Q22 MRF systems are revolutionizing the way optics are being made. They have gained broad acceptance by most of the world's leading optics fabricators.
Unparalleled Accuracy and Repeatability:
- Obtain high-precision surfaces ranging from 1 lambda to lambda/50
- Correction of transmitted wavefront (windows, phase plates, entire system correction on one surface)
- Optical glasses, single crystals (calcium fluoride, silicon…) and ceramics
- Square and rectangular aperture surfaces such as prisms, cylinders, and photoblank substrates
- Mild & wild aspheres and cylinders
- High-aspect-ratio optics and substrates (thin film filters, etalon substrates, semiconductor wafers...).
MRF does what many people in the optics business would consider impossible:
- A turnkey system able to polish precision glass aspheres with 400 microns of deviation to lambda/4 in 30 minutes
- MRF can make surfaces: 1) extremely flat, 2) extremely spherical, aspherical, cylindrical or any other mathematically defined shape, and 3) extremely uniform in thickness (important for silicon-on-insulator semiconductor wafer applications) or optical thickness
- MRF can also improve the surface integrity by: 1) removing micro-cracks and subsurface damage, 2) removing residual stresses, and 3) improving glass resistance to laser damage.
