Zhiliang Fang

TL;DR: A fast and efficient technique for profilometric measurement with a color-coded grating that has the advantages of simple hardware without moving mechanical parts, single exposure for obtaining three-dimensional information, little influence from noise and from nonlinearity of the CCD camera on the measurement accuracy, and higher anti-color-blurring capability.

TL;DR: The illumination system can be used for personal pocket-size projectors providing a 15-20 in.

TL;DR: A hexagonal microlens array directly fabricated on an indium tin oxide glass substrate by the combination of direct laser writing and inductively coupled plasma etching is demonstrated to enhance the outcoupling efficiency of the organic light emitting devices, which can avoid the loss of photons and the mechanical and thermal deformations at the glass/microlenses interface.

TL;DR: This method for enhancing depth-of-field, in which the spot size on a marginal depth plane is reduced, is implemented in a projection-type integral imaging system using a negative lens array without a diffuser to confirm good agreement between the results and numerical predictions.

TL;DR: This work proposes a generalized approach to producing optical vortices with suppressed sidelobes using a variable Bessel-like function added to the conventional spiral phase plate and demonstrates that the method is valid for optical vortex beams with arbitrary topological charges.