ABSTRACT
The Virtual Retinal Displayâ„¢ (VRDâ„¢) technology is a new bring out technology being positive at Microvision Inc. The displayed image is scanned onto the viewers retina victimization low-power red, green, and low-spirited light sources. Microvisions proprietary miniaturized digital scanner tropes make VRD administration very well suited for head-mounted displays. In this paper we address some of the advantages of the VRD technology, various ocular designs for HMD and other applications, and details of constructing a remains MTF budget for laser scanning systems that includes electronics, modulators, scanners, and optics.
Keywords: laser scanning, display resolution, Virtual Retinal Display, VRD, head mounted displays, modulation beam function
1. Introduction
Virtual Retinal Displayâ„¢ (VRDâ„¢) technology is a romance scanning-based display technology where the displayed image is scanned in a raster sight onto the viewers retina in a raster pattern using low-power red, green, and blue light sources, such as lasers, laser diodes, or LEDs. The VRD systems use two uniaxial scanners or one biaxial scanner to create a raster pattern.
The horizontal scanner is a flexure-based mechanical resonant scanner that operates at several KHz and the tumid scanner is also a mechanical scanner operated at a non-resonant mode at the frame rate of the display, which is typically 60Hz
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The resolution and the modulation transfer function (MTF) are signalize performance indicators in display systems. Resolution of mechanical scanners is comparative to scan mirror size and scan angle, and inversely proportional to wavelength. High-resolution systems demand horizontal scanners that provide a deep mirror-size scan-angle product and high frequency. System resolution issues and scanner design issues are discussed in more detail elsewhere.
This paper is dissever into three parts. In the first part, we briefly discuss the VRD system operation and its advantages compared to other...If you want to get a full essay, order it on our website: Ordercustompaper.com
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