akash jain

APresentation

ON

Virtual Retinal Display

PRESENTED BY:-PRESENTED BY:- AKASH JAIN AKASH JAIN

ECE, 8ECE, 8THTHSEM.SEM.

CONTENTS

INTRODUCTION BASIC DIAGRAM OF VRD FUNDAMENTALS OF HUMAN EYETHE BASIC SYSTEM VRD FEATURES COMPONENTS A MEMS MIRROR APPLICATIONS FUTURE OF VRD TECHNOLOGY

• The Virtual Retinal Display (VRD) is a personal display device.

• The VRD scans light directly onto the viewer's retina.

• The aim was to produce a full color, wide field-of-view, high resolution, high brightness, low cost virtual display.

• The special consequences of its mechanism of action and

potential medical applications of the VRD.

• Surgical displays and displays for people with low vision.

INTRODUCTION

VRD consists of a light source, a modulator, vertical and horizontal scanners, and imaging optics. On a basic level, as shown in the following figure

The resultant imaged formed on the retina is perceived as a wide field of view image originating from some viewing distance in space

BASIC DIAGRAM OF VRD

The following figure illustrates the light raster on the retina and retina converts the light into

signals that percolate into your brain via the optic nerve and the resultant image perceived in space.

Fundamentals Of Human Eye

The Human visual pathway

The Basic System

Size and Weight

Resolution

Field of View

Color and Intensity Resolution

Brightness

VRD Features

Video Electronics

Light Sources and Modulators

Scanners

Components of the Virtual Retinal Display

A MEMS mirror

For more compact designs techniques we used MEMS system.

A MEMS acronym for Micro Electro-Mechanical System .

A MEMS mirror is utilized in the fabrication of scanners.

Scanners yields more life to the system and imparts more torque.

Such designs have also been developed for retinal scanning display.

Applications of Virtual Retinal Display

Surgery

Manufacturing

Communications

Virtual Reality

Military

The Future of VRD Technology

• When cost of production falls further, we will see VRDs fulfilling many functions and applications.

• Future systems will be even more compact with the advent of MEMS(Micro Electro Mechanical System) scanners, miniature laser diodes and application specific IC technology.

• Another key development to come is the advent of Augmented Reality display systems to assist people in their various tasks.

Conclusion

If the Virtual Retinal Display(VRD )is capable of augmenting our real world with the extra information, Might it fundamentally change the way we comprehend information.

Thank You