Deflectometry as a technique to assess reflective surfaces has now existed for some 40
years. Its different aspects and variations have been studied in multiple theses and research …

Computational imaging systems algorithmically post-process acquisition images either to
reveal physical quantities of interest or to increase image quality, eg, deblurring. Designing …

Phase measuring deflectometry has been applied for free-form specular surface metrology,
but its measured slope results are sensitive to the depth of sample positioning, which is also …

The freeform imaging system is playing a significant role in develo** an optical system for
the automotive heads-up display (HUD), which is a typical application of augmented reality …

Deflectometry, as a non-contact, fully optical metrology method, is difficult to apply to
refractive elements due to multi-surface entanglement and precise pose alignment. Here, we …

The surface errors of freeform surfaces reflect the manufacturing complexities and
significantly impact the feasibility of processing designed optical systems. With multiple …

Deflectometry is a non-destructive, full-field phase measuring method, which is usually used
for inspecting optical specimens with special characteristics, such as highly reflective or …

To meet the need for the high-precision contactless measurement of the freeform surface
profile during the manufacturing, we propose a high-precision measurement method that …

In the domain of phase measuring deflectometry (or fringe projection profilometry), utilizing
only a single-frame fringe pattern to achieve high-precision three-dimensional …

Phase measuring deflectometry is a powerful measuring method for complex optical
surfaces, which captures the reflected fringe images encoded on the screen under the …