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

Shoaib Rehman Soomro; Hakan Urey

doi:10.1364/ao.56.006108

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

Shoaib Rehman Soomro (Lead / Corresponding author)
, Hakan Urey

Physics

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

We propose and demonstrate a light-efficient 3D display using a highly transparent desktop-sized augmented reality screen. The display consists of a specially designed transparent retro-reflective screen and a pair of low-power pico-projectors positioned close to the viewer’s eyes to provide stereo views. The transfer screen is an optically clear sheet partially patterned with retro-reflective microspheres for high optical gain. The retro-reflective material buried in the screen reflects incident light back towards the projectors with a narrow scattering angle and facilitates the viewer to perceive a very bright content. The tabletop prototype mainly consists of an in-house fabricated large augmented reality (AR) screen ( ) and a pair of laser-scanning 30 lumen pico-projectors. The display is tested for different viewing configurations, and different display parameters, such as retro-reflective coefficient, eye-box size, polarization maintainability, stereo crosstalk, and brightness, are examined. The AR prototype display provides 75% optical transparency, exceptional brightness (up to when viewed through beam splitters and with bare eyes), and negligible crosstalk in 3D mode (and when viewed through beam splitters and polarizers, respectively) for the working distance of up to 2 m.

Original language	English
Pages (from-to)	6108-6113
Number of pages	6
Journal	Applied Optics
Volume	56
Issue number	22
DOIs	https://doi.org/10.1364/ao.56.006108
Publication status	Published - 24 Jul 2017

Keywords

Augmented reality
Crosstalk
Display devices
Luminance
Optical instruments
Prisms
Display parameters
High optical gain
Optical transparency
Optically clear
Prototype displays
Reflective coefficients
Scattering angles
Working distances
Optical beam splitters

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10.1364/ao.56.006108

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title = "Light-efficient augmented reality 3D display using highly transparent retro-reflective screen",

abstract = "We propose and demonstrate a light-efficient 3D display using a highly transparent desktop-sized augmented reality screen. The display consists of a specially designed transparent retro-reflective screen and a pair of low-power pico-projectors positioned close to the viewer{\textquoteright}s eyes to provide stereo views. The transfer screen is an optically clear sheet partially patterned with retro-reflective microspheres for high optical gain. The retro-reflective material buried in the screen reflects incident light back towards the projectors with a narrow scattering angle and facilitates the viewer to perceive a very bright content. The tabletop prototype mainly consists of an in-house fabricated large augmented reality (AR) screen ( ) and a pair of laser-scanning 30 lumen pico-projectors. The display is tested for different viewing configurations, and different display parameters, such as retro-reflective coefficient, eye-box size, polarization maintainability, stereo crosstalk, and brightness, are examined. The AR prototype display provides 75\% optical transparency, exceptional brightness (up to when viewed through beam splitters and with bare eyes), and negligible crosstalk in 3D mode (and when viewed through beam splitters and polarizers, respectively) for the working distance of up to 2 m.",

keywords = "Augmented reality, Crosstalk, Display devices, Luminance, Optical instruments, Prisms, Display parameters, High optical gain, Optical transparency, Optically clear, Prototype displays, Reflective coefficients, Scattering angles, Working distances, Optical beam splitters",

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AB - We propose and demonstrate a light-efficient 3D display using a highly transparent desktop-sized augmented reality screen. The display consists of a specially designed transparent retro-reflective screen and a pair of low-power pico-projectors positioned close to the viewer’s eyes to provide stereo views. The transfer screen is an optically clear sheet partially patterned with retro-reflective microspheres for high optical gain. The retro-reflective material buried in the screen reflects incident light back towards the projectors with a narrow scattering angle and facilitates the viewer to perceive a very bright content. The tabletop prototype mainly consists of an in-house fabricated large augmented reality (AR) screen ( ) and a pair of laser-scanning 30 lumen pico-projectors. The display is tested for different viewing configurations, and different display parameters, such as retro-reflective coefficient, eye-box size, polarization maintainability, stereo crosstalk, and brightness, are examined. The AR prototype display provides 75% optical transparency, exceptional brightness (up to when viewed through beam splitters and with bare eyes), and negligible crosstalk in 3D mode (and when viewed through beam splitters and polarizers, respectively) for the working distance of up to 2 m.

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KW - Optical instruments

KW - Prisms

KW - Display parameters

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KW - Optical transparency

KW - Optically clear

KW - Prototype displays

KW - Reflective coefficients

KW - Scattering angles

KW - Working distances

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

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Keywords

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