Abstract
Holographic optical element is widely developed in augmented reality, virtual reality, and three-dimensional display application. Especially, the full-color HOE has been studied for the wearable device in these days. In this chapter, the basic theories and the specific analysis for the full-color holographic optical element are explained. It also explores the Bragg angle shift phenomenon caused by shrinkage of the recording materials. The full-color holographic optical element with enhanced diffraction efficiencies using the optimum recording intensities for each wavelength is presented. The fabricated full-color holographic optical element can be applied in augmented reality application. In addition, we reviewed the waveguide head-mounted display system using full-color holographic optical element.
Highlights
The development of display technology, which combines electronic components and fine-patterning technology, is leading to the development of advanced augmented reality (AR)/virtual reality (VR) display devices that can realize the three-dimensional (3D) world
The holographic optical element (HOE) is still developing in various fields such as a 3D display, holographic printer, head up display (HUD), Head-mounted display (HMD), AR and so on
Mass production advantages of the HOE, the conventional optical components are replacing with the HOE to simplify optical system
Summary
The development of display technology, which combines electronic components and fine-patterning technology, is leading to the development of advanced augmented reality (AR)/virtual reality (VR) display devices that can realize the three-dimensional (3D) world. Because DOE uses dry etching to produce fine patterns, the process is more complex than HOE production using the holographic record methods, and the costs of production are higher. In 2015, Sony released the transparent lens eyewear “SmartEyeGlass Developer Edition” It includes a CMOS image sensor, accelerometer, gyroscope, electronic compass, brightness sensor, and microphone. It is equipped with holographic waveguide technology to achieve high transparency of 85% and a thin, lightweight display. The waveguide HMD system using full-color HOE is reviewed It explores the Bragg angle shift phenomenon caused by shrinkage of the recording materials. The fabricated full-color HOE can be applied in the AR application
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