PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
In our previous publications, we had successfully made a deflectometry measurement by using a portable laser projector.
In this research, we propose the beam weighting centroid method rather than previous the phase shifting method for
quantification of the angular direction of the testing beam in the tested optics entrance pupil. By projecting the angular
sequential lines on tested optics entrance pupil, the wavefront aberration is reconstructed from two orthogonal directions
measurements, in a similar way to the line scanning deflectometry. The limited gray scale problem of laser projector during
the phase shifting measurement is therefore eliminated. The reconstructed wavefront is proven to yield a more accurate
result than the phase shifting methods at the cost of more image frames and acquisition time.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Hao-Xun Zhan, Chao-Wen Liang, Shih-Che Chien, "Angular line scanning deflectometry using a laser pico projector," Proc. SPIE 9960, Interferometry XVIII, 99600O (28 August 2016); https://doi.org/10.1117/12.2236289