See-through holographic retinal projection display concept

Abstract

The field of near-eye see-through devices has recently received significant media attention and financial investment. However, devices demonstrated to date suffer from significant practical limitations resulting from the conventional optics on which they are based. Potential manufacturers seek to surpass these limitations using novel optical schemes. In this paper, we propose such a potentially disruptive optical technology that may be used for this application. Conceptually, our optical scheme is situated at the interface of geometric incoherent refractive imaging and radiative coherent diffractive imaging. The generation of an image occurs as a result of data transmission through a two-dimensional network of optical waveguides that addresses a distribution of switchable holographic elements. The device acts as a wavefront generator and the eye is the only optical system in which the image is formed. In the following we describe the device concept and characteristics, as well as the results of initial simulations.

Tunable Waveguides Couplers Based on HPDLC for See-Through Applications

“…Currently, in the design of smart glasses some problems remain on the table, like power consumption, the limitation of the resolution, the wide field of view, etc. [ 1 , 2 , 3 ]. There are different steps to fix in order to fabricate a smart glass: sensing, processing, image generation, the transformation of an analogical image to a digital one, propagation through the glass to the eye and the generation of the virtual image on the retina.…”

Visible‐Light Laser Diodes and Superluminescent Diodes: Characteristics and Applications

“…The scanning is done using mirrors based on microelectromechanical systems (MEMS). They can also be used in retinal projection and holographic displays [45][46][47]. In retinal projection, the power requirement is substantially lower since the light is projected directly to the eyes at eye-safe levels.…”

A Study on Augmented 3D Display Optimization Based on Holographic Optical Element for High Depth and Magnified Image

“…The third term is the conjugate light, which proceeds approximately in 2θ direction. Because of exp(i2kx sin θ ) ≈ exp(ikx sin 2θ ) [17][18][19]. Therefore, HOE is equivalent to applying the refractive function of a lens to a hologram medium by positioning and recording the lens instead of the actual object in the conventional hologram method.…”