Measuring Mid Spatial Frequencies in Optical Surfaces
Äpre Instruments has released a short paper, entitled “Mid Spatial Frequencies in Optical Surfaces Based on Interferometric Measurements.”
The abstract of this paper states:
Modern optical polishing introduces mid-spatial frequency errors. Few standards exist to specify and measure mid-spatial frequencies. We propose Fizeau interferometry’s application characterized by power spectral density due to its flexibility and easy physical interpretation.
About Äpre Instruments
Äpre Instruments was founded on the belief that advancing the field of metrology can advance the field of precision optics. Their eyes are on the horizon—anticipating your and your customers’ needs for ever more advanced optics and designing the next generation of metrology equipment and reporting. Äpre manufactures interferometers and also develops and supplies interferometer software. Äpre meets today’s needs with upgrades and unmatched service, and helps you advance your capabilities for tomorrow.
To request more information or a quotation for Äpre products or service, contact IL Photonics.