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Service for Your 4D Instruments

Service for Your 4D Instruments

Getting repair service for your 4D Instruments Keeping your 4D metrology instrument running in prime condition is a way of retaining performance and value, while ensuring reliability for years and years. 4D Technology’s products are built to last, and we stand by them...
The New On-Axis Dynamic AccuFiz Fizeau

The New On-Axis Dynamic AccuFiz Fizeau

The New On-Axis Dynamic AccuFiz Fizeau When 4D Technology’s AccuFiz interferometers’ patented dynamic mode was introduced, their spatial-phase-shifting technique provided an amazing capability. The stability requirements (sensitivity to vibration) for a measurement...
Measuring up to NASA’s James Webb Space Telescope

Measuring up to NASA’s James Webb Space Telescope

Measuring up to NASA’s James Webb Space Telescope Measuring optics for space-based optical systems, like the James Webb Space Telescope, comes with a high risk-profile. After all, it’s difficult to get systems into space, and once deployed, it can be very hard to make...
Fizeau Continuous Zoom Interferometer

Fizeau Continuous Zoom Interferometer

Fizeau Continuous Zoom Interferometer A Fizeau Interferometer that has continuous OPTICAL zoom breakthrough. They said it couldn’t be done, but here’s a quick demonstration of the 4D Technology Accufiz with zoom option. Benefits: use one interferometer for...
Measuring birefringence with a polarimeter camera

Measuring birefringence with a polarimeter camera

Measuring Birefringence with a Polarimeter Camera This short video illustrates a method of characterizing and measuring the birefringence in a moving scene. By using a micropolarizer camera with analysis software, the polarization of live-action scenes are now easily...