Light field near eye displays (LFNED) can produce lightweight devices and address the accommodation-convergence conflict. However, low spatial resolution creates a poor immersive experience in LFNED. In addition, although many e-shifting devices have been proposed to enhance resolution in projection system, yet those devices are too bulky to be applied in an LFNED to keep it lightweight. In this paper, a compact e-shifting component is proposed to enhance image resolution in an LFNED by using a birefringent plate and twisted nematic switch cell. The proposed e-shifting device is a flat and thin component with only 2.6 mm of thickness, which could be placed in the gap of an LFNED without increasing the thickness. The results show that the proposed components could be easily integrated in an LFNED with the result of resolution enhancement.

Using the excellent performances of a SACLA (RIKEN/HARIMA, Japan) X-ray free electron laser (X-FEL), coherent diffraction imaging (CDI) was used to detect individual liposome particles in water, with or without inserted doxorubicin nanorods. This was possible because of the electron density differences between the carrier, the liposome, and the drug. The result is important since liposome nanocarriers at present dominate drug delivery systems. In spite of the low cross-section of the original ingredients, the diffracted intensity of drug-free liposomes was sufficient for spatial reconstruction yielding quantitative structural information. For particles containing doxorubicin, the structural parameters of the nanorods could be extracted from CDI. Furthermore, the measurement of the electron density of the solution enclosed in each liposome provides direct evidence of the incorporation of ammonium sulphate into the nanorods. Overall, ours is an important test for extending the X-FEL analysis of individual nanoparticles to low cross-sectional systems in solution, and also for its potential use to optimize the manufacturing of drug nanocarriers.

Light field near‐to‐eye display (LFNED) achieves lightweight device and solves accommodation‐convergence conflict. However, low spatial resolution of LFNED brings users bad immersive experience. In this paper, the new method proposed using birefringent plate to enhance image resolution. In results, our method apparently improves resolution in LFNED.

Light field near eye displays (LFNED) can produce lightweight devices and address the accommodation‐convergence conflict. However, low spatial resolution and narrow FoV creates a poor immersive experience in LFNED. In this paper, the dynamic optical components are proposed to enhance image resolution and widen the FoV of LFNED. The proposed devices are the flat and thin component with only few mm of thickness, which could be placed in the gap of LFNED without increasing the thickness. The results show that the proposed components could be easily integrated in LFNED with the effect of resolution and FoV enhancement..