Technical Articles
4D Technology Corporation has published these technical articles:
(Inspection Tools and Instruments)
From this Article:
Mechanical vibration and turbulent airflow present significant problems for most interferometric test methods. Conditions on the factory floor and in industrial clean rooms with high-capacity air...
(Inspection Tools and Instruments)
From this Article:
Conditions on the factory floor and in industrial cleanrooms with high-capacity air filtration systems can hamper the use of interferometry. Another problem is the testing of large-aperture mirrors...
(Inspection Tools and Instruments)
From this Article:
Wavefront measurement is important in the manufacture of individual optical components and for the optimization of sub-assemblies in optical data storage. The trend towards short-wavelength, high...
(Inspection Tools and Instruments)
From this Article:
An on-axis, vibration insensitive, polarization Fizeau interferometer is realized through the use of a novel pixelated mask spatial carrier phase shifting technique in conjunction with a low coherence...
(Inspection Tools and Instruments)
From this Article:
We demonstrate a new type of spatial phase-shifting, dynamic interferometer that can acquire phase-shifted interferograms in a single camera frame. The interferometer is constructed with a pixelated...