Light-efficient augmented reality 3D display using highly transparent retro-reflective screen

Soomro, Shoaib R.; Ürey, Hakan

doi:10.1364/ao.56.006108

Cited by 9 publications

(11 citation statements)

References 14 publications

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“…The former utilizes light projection on a transparent screen where an image needs to be displayed and includes head-up displays (HUDs) 7 , 8 that project light on a screen, e.g ., airplane or automobile windows, and head-mounted displays (HMDs) 3 that project light directly on the human eye. In the past, HUDs were used for displaying various warplane informationnowadays, they are routinely used in automobile systems implementing augmented reality 9 , 10 . HMDs 11 , 12 utilized in devices such as glasses or goggles project light directly on the human eye, making both the real-world image (viewed through the lenses) and the display image visible at the same time.…”

Section: Introductionmentioning

confidence: 99%

Transparent Displays Utilizing Nanopatterned Quantum Dot Films

Shin

Hwang

Zhao

et al. 2018

Sci Rep

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We report the realization of a transparent display using glass covered by a nanopatterned quantum dot (QD) film with good transmittance. The film was fabricated by nanoimprint lithography (NIL) and spin coating of colloidal QDs with specificexcitation maxima. The produced nanopatterned QD film was attached to transparent glass, enabling active image generation using a laser light source of a specific wavelength. Selective light emission was induced by strongly exciting the laser-exposed film surface, creating desired images, with color modulationenabled by controlling the QD layer (dozens of nanometers in size) via nanopatterning. The nanopatterned QD film used for image generation exhibits excellent transmittance (>80%), and can be used for transparent displays, with image realization in both bright and dark spaces. The fabricated displays have wide viewing anglesowing to their good light emission characteristics, and the fabrication through spin coating renders the fabrication process simple and applicable to large areas.

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Section: Introductionmentioning

confidence: 99%

Transparent Displays Utilizing Nanopatterned Quantum Dot Films

Shin

Hwang

Zhao

et al. 2018

Sci Rep

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“…The optical collimation feature inherent in the typical HUDs was provided by employing simulated collimation, where the parallax between the stereo views was adjusted to display imagery at a defined depth. The procedure and results of the two different user tests conducted using a see-through retroreflective HUD screen are presented [10]. The results are extendable to any type of stereo 3D HUD where the virtual imagery is displayed at a fixed distance from the user.…”

Section: Introductionmentioning

confidence: 92%

Visual acuity response when using the 3D head-up display in the presence of an accommodation-convergence conflict

Soomro

Ürey

2019

Journal of Information Display

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Visual discomfort and fatigue due to accommodation-convergence (AC) conflict in stereoscopic displays has been widely reported, but little is known about its impact on visual acuity, particularly when automotive three-dimensional (3D) head-up displays (HUDs) are involved. This paper presents a study on the visual acuity response when an indigenously developed 75% transparent retroreflective screen is used as a windshield 3D HUD. The simulated optical collimation technique was used to provide the virtual content at a farther depth (i.e. on the road while driving). Two user test experiments were performed. The first test was performed under the see-through condition, where the real scene (i.e. roadside view) was perceived through the 3D HUD, while the second test was performed under the simulated collimation condition, where a stereo-collimated virtual content was projected on the HUD at a farther depth. The results showed a slightly declining trend (from 20/20 to 20/25) in visual acuity response when the HUD screen was placed between the viewer and the scene. An inverse relation between the amount of AC conflict and visual acuity was observed under the simulated collimation condition. The > 100 cm user-to-screen distance was found to be comfortable, providing the highest acuity response.

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“…The retro-reflector screen reflects back the projected light and each eye captures the nearest projector. Since most of the light is reflected towards the eye, the screen not only offers high optical gain but also provides different contents to two eyes at the same time, which makes it possible to deliver 3D content [7,8].…”

Section: Head-mounted Projection Displays Using Transparentmentioning

confidence: 99%

Next Generation Augmented Reality Displays

et al. 2018

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Wearable AR/VR displays have a long history and earlier efforts failed due to various limitations. Advances in various sensors, optical technologies, and computing technologies renewed the interest in this area. AR glasses can be the new computing platform and potentially replace smart phones but there are some challenges ahead. We have been working on various wearable display architectures and here we summarize our efforts on laser MEMS scanning displays, head-mounted projectors, and holographic near-eye displays.

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Light-efficient augmented reality 3D display using highly transparent retro-reflective screen

Cited by 9 publications

References 14 publications

Transparent Displays Utilizing Nanopatterned Quantum Dot Films

Transparent Displays Utilizing Nanopatterned Quantum Dot Films

Visual acuity response when using the 3D head-up display in the presence of an accommodation-convergence conflict

Next Generation Augmented Reality Displays

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