Perspective correct occlusion‐capable augmented reality displays using cloaking optics constraints

Abstract

Perspective‐correct occlusion‐capable augmented reality displays are generalized using an optical cloak constraint for ray transfer analysis or simulations; any ray entering the optical system exits at the height and angle as if it passed through empty space. We analyze several systems with two‐lens, three‐lens, and four‐lens looped groups in inline, folded, and looped configurations. We design and demonstrate a four‐lens folded optical cloak and a three‐lens inverted cloak with an erecting prism.

Implementation of varifocal occlusion using lens arrays and focus-tunable lenses

“…For many years, various occlusion research have adapted the optical path folding structures with prisms and mirrors to build the bulky 4f systems in head-up display form factors. [5][6][7][8][9] The optical path length can also be shortened by using polarization beamsplitter or x-cube. 3,10,11 However, these methods still have limitations in reducing the system size to be suitable for near-eye AR devices.…”

Switchable virtual, augmented, and mixed reality system through optical cloaking

“…The correct optical ray propagation is to essentially "cloak" the space between the cameras/sensors and the display pixels, and can be applied to digital images in a simple manner [10]. Some researchers have begun investigating optical cloaking in these simulated devices [11,12]. In this work, a few methods are proposed to combine (or intentionally not combine) real reality with simulated reality through the use of optical cloaking, geared for digital image capture, processing, and display.…”