Manufacturing a precision surface requires a balance between satisfying the optimum quality requirements at the minimum cost. Steve Martinek summarizes the challenges of increasing the precision ...

Purdue faculty dedicate countless hours to exploring the frontiers of their respective fields, pushing the boundaries of knowledge and contributing to the ever-evolving landscape of academia. To ...

Optical Surfaces Ltd has received an order from Armstrong Optical, a leading UK supplier of optical metrology instruments, to supply high specification transmission and reference flats for a custom ...

Topography becomes more important in quality assurance for manufacturing. This regards the characterization of macro-sized to medium optics and the optimization of a manufacturing process using a ...

The quantification of large optics demands metrology systems that operate in the context of turbulence, vibration and additional challenges. Figure 1. Measurement of large optics, such as this 8-meter ...

While the E-ELT (Extremely Large Telescope – 39.3 meter mirror) and its first suite of scientific instruments are being constructed, a third generation of instruments for the Very Large Telescope ...

Interferometers, devices that can modulate aspects of light, play the important role of modulating and switching light signals in fiber-optic communications networks and are frequently used for gas ...

A new method based on optical interferometry, to monitor structural damage to buildings hit by earthquakes in real time, is the outcome of the Foresight research project, led by the Politecnico di ...

Tear fluid is emerging as an attractive source of diagnostic information because it can be collected easily and noninvasively ...