4D Technology has added to its line of PhaseCam dynamic interferometers, supported by the release of 4Sight Focus acquisition and analysis software
Measurement of large optics require metrology systems that can function despite vibration, turbulence and other challenges.Laser interferometry is used throughout the manufacturing of large optics to ensure conformance to demanding design specifications. More recently, “dynamic interferometry” has been implemented for vibration-insensitive measurement of large optics.
*Now available on demand* Dr Erik Novak, senior director of business development at 4D Technology, will discuss the different aspects that need to be considered when selecting a Large Aperture Interferometer.
Keely Portway looks at some of the latest advances in light-based test and measurement techniques
The Surface Isolation Source is an optional, external laser source for 4D Technology AccuFiz Fizeau interferometers
Verifying the surface quality of optics has long relied on a visual, non-quantitative approach, finds Jessica Rowbury
4D Technology has announced the 4D InSpec Surface Gauge, the first handheld, non-contact instrument that measures precision machined surface defects and features with micrometer-level resolution
4D Technology Corporation, manufacturer of optical metrology systems, has introduced its newly improved AccuFiz compact laser interferometer for accurate, repeatable measurement of surface shape and transmitted wavefront quality
4D Technology Corporation, manufacturer of optical metrology systems, has introduced the FlexCam metrology module
4D Technology Corporation, manufacturer of optical metrology systems, has introduced its newly improved AccuFiz compact laser interferometer for accurate, repeatable measurement of surface shape and transmitted wavefront quality
Image credit: bogdanhoda/Shutterstock.com
Tiny nanodiamonds are being used to dramatically optimise the calibration of optical microscopes, Matthew Dale finds
After the test disk is placed inside the chamber, some fine tuning is required to ensure they are horizontal and perfectly centred (credit: Caltech)
LIGO scientists have developed a new mirror coating that could dramatically increase the observatory's detection rate of gravitational waves
Image credit: Gorodenkoff/Shutterstock.com
Advances in research have made strides in the improvement of wearable and AR/VR displays
LLNL optical engineers Justin Wolfe (left) and Simon Cohen are seen through the 'r' filter (credit: Garry McLeod)
A telescope, described as one of the world’s newest, has been completed following a project undertaken by researchers to develop some very specialist optical filters
Magic cinema/Shutterstock.com
Advances in optical prisms are being used to help researchers gain a greater understanding of space and astronomy
Universities offering associate degrees for optics technicians could help answer the photonics skills shortage, finds Jessica Rowbury
