The Third Eye is a transparent displaythat projects data in front of viewer eye without distracting the actual view ofthe user. It projects an image just like head-up display also says Smart VisionSystemThe Third Eye display system projects animage directly onto the human retina with low-energy lasers or LCDs. It cangive the user ‘ the illusion of viewing a typical screen-sized display hoveringin the air several feet away. In principle the technology can providefull-color, high resolution dynamic displays. It is highly efficient withrespect to power consumption, requiring far less power.One of the main tasks in technicalindustry is observation of various parameters which includes the use of analogor digital measuring devices. Continuous monitoring while working on a machinecan sometimes create problem for the engineer or technician.
He/she has tocontinuously change his/herfocus of vision from the machine to the display of the measuring instrument. Ifwe are able to integrate it with the measuring instrument then it will create asafe and easy working environment for the engineer or the technician and avoidaccidents.The main idea behind suchkind of device would be that it will take data from the instrument and thatdata will be displayed on the screen.This paper describesthe function and implementation of Third Eye device. KEYWORDS: head-up display, transparent display, retina,semiconductor laser, OLED, arduino, bluetooth, optics, 1. INTRODUCTION From a longtime computer monitor has been the window into the digital universe. The imagein the form of light is projected onto the back of the eyeball i.
e. the retina.The retina then converts the light signals, these then travel through opticnerve to the brain. Another betterway is that why cannot we paint the image directly onto the retina eliminating thatbulky, power consuming monitor.
For this we can use LEDs of special type orminiature lasers (semiconductor based), one device can be used for the three keycolors (red, yellow, and blue) and thereafter scan the light of those LEDs onthe retina. By mixing these 3 primary colorswe could create the whole spectrum of human vision. This could be the effectiveway to obtain an image into anyone’s brain for obtaining the viewingsituations. By projectingthe light only to one of your retinas, images might be overlaid on person’sview of real objects and generating an animated, X-ray-like preview of someobject or innards of that object, such as a car’s machinery, human body etc. On the other hand, if littlebit differ images were projected into each eye, it may generate intense 3D sightsconsisting clean, jewel-like spectral colors. Observers could be observed an intensifiedsense of realistic image that LCD goggles may not provide, as LED- or LASER based system might bedynamically refocuses to simulate nearby and far objects with absolute realism.The mostsignificance of this method is that there could be very less wastage might benegligible amount of photons therefore it would be superbly matched to thelow-power necessities of mobile devices. Approximately hundreds of times lesspower may consume by lasers or LED’s as comparison to small LCD screens ofmobile phone or notebooks etc.
Now consider acell phone or a PDA with a small screen, through stimulating your retina whenpeered inside it, could produce an image rich in color with its detail. Theimage would give an impression to your brain as wide as brightly stricken on tothe display screen 65cm away , which can be reconfigured speedily from , say ,a traditional boxy 4:3 format to the widescreen 16:9 format.The indicationsof such systems, known as scanned-beam displays, are just now going to hit themarket. 2. OBJECTIVE The objective of the work in this paper is to build a smallwearable and compatible head up display using a small OLED combining anArduino, a Bluetooth module, battery with some concept of optics.
The received data from Bluetooth to any other Bluetoothsystem is displayed, on the OLED screen. It’s then reflected over the mirrorwhich is fixed in front of the screen, then the reflected light goes throughthe lens and you can see the picture in the little transparent acrylic glasswhich is placed in front of the user eye.Display options will vary and customizable. It depends on the applicationthat where we are using it.Many people use the mobile phone while driving motorcycles forcalling, navigation or some other purpose. This may result in accidents. This problem can be reduced by using the head up display in thehelmet. 3.
COMPONENTSOF THE DEVICE It contains three primary components: 1. The Projectionunit which consist of a plane mirror, a convex lens and an OLED. Planemirror is placed in front of the OLED, which is inclined at some angle and theplane mirror is at the focus of the convex lens. 2.
The Combineris an angled flat piece of transparent glass also known as beam splitter locateddirectly in front of the viewer eye. The glass must be more reflective than thetransmissive. For better and clear image, the ratio between the reflection andthe transmission through the glass is 7:3. 3. The Computeri.
e. microcontroller that provides the interface between the projection unitand the systems/data to be displayed. In this device, we are using arduino ascomputer that connects the data system with the OLED display. It acts as thebrain of the device. 4.
BLOCKDIAGRAM OF THE THIRD EYE Figure 1 TheThird Eye basically consists of a micro-controller that can be of arduinofamily or atmega16 or some other family. Here, we are using arduino. It isinterfaced with OLED display, power source and bluetooth. The display projectsan image on the mirror which is placed at some angle in front of the display.
The reflected image passes through the convex lens and finally the refractedimage is shown on the transparent display. 5. WORKING OF THE THIRD EYE The process basically involves the phenomenon of optics which istriggered using embedded system. The working of HUD divided into three sections: · Electronics: In electronicsconfiguration, we are using arduino atmega 328 microcontroller, Bluetooth,power supply source i.e.
rechargeable battery and the charging circuit andsensors. The data is taken by the sensor in analog form, processed by themicrocontroller and send to the display unit. The display option is customizable.The collected information stored in the memory for further use or when it isneeded. · Light Source: The lightsource involves OLED for display, the data pass through a analog to digitalconverter that controls the light source. · Optics: Optics sectionincludes assembly of convex lens, plane mirror and the combiner. The planemirror is placed at an angle of around 45° in front of the OLED display. It reflects the image of the OLEDdisplay.
The reflected image is laterally inverted. It is then focused on theconvex lens which is placed at the focus. It makes the diverging ray of themirror into the parallel ray and finally the required image is displayed on thetransparent glass and finally we get the actual data in front of the viewer. 6. CHARACTERISTICS OF THE THIRD EYE It has in common the following characteristics: • Thedisplay element is largely transparent.• Theinformation is projected with its focus at infinity.• Itmust be compact and lightweight 7. LEARNING ASSOCIATED FOR YOUNG LEARNERSThis project will teach young minds about the basic idea ofembedded system and implementing them in real life problems moreover they willlearn about the phenomenon of optics.
8. ADVANTAGESOF THE THIRD EYE · It ishighly efficient with respect to power consumption, requiring far less powerthan the postage-stamp LCD screens used commonly in today’s mobile devices. Ituses about a microwatt of power.· It providesa sharp, clear image regardless of external lighting conditions.
· Itrequire a fraction of the hardware of conventional display devices, allowingfor lighter and more elegant mobile devices, in high demand for today’selectronics market.· Head-updisplay shows strong potential to replace LCD screens in cell phones, handheldcomputers, handheld gaming systems, and eventually even larger computers suchas laptops. 9. HUD MARKETANALYSIS 10. BENEFITSAND CHALLENGES BENEFITSThe major benefit of this project is thatit can help to avoidaccidents. Some more benefits are:1. Military aircraft applications include weaponsstatus and sensor data such as target destination, range, line of sight.
2. Automobiles usually offer speedometer, tachometer,and navigation system display. Night vision information will also be displayed.It can also be used in motorcycle helmets.3. Medical operations includes patient health status suchas heart beat rate, blood pressure etc.4. Navigation:Off the bike, your smart phone gives you access to maps, directions and pointof interest which will solve the problems for daily commuters.
5. Weather:It lets you avoid bad weather.6. Telemetry:See all the data that is important to you without taking your eyes off the road which willreduce the chances of accidents.7.
Communication:calling system can be accessed while driving.MAJOR CHALLENGES· Power consumption is one of the major challenges.· It should be compact and light weight so that it is easy to handle.· The optical design will be the most difficult part. 11. APPLICATIONS It is used in various fields for• Militarypurpose• Aircrafts• Automobiles• Medicaloperations• Livenews reading• Videogaming• displaying information to workers on site locations suchas power stations, airports and events• These displays are discreet and easy to use and are beingused in the field by engineers, security and police forces. 12.
FUTURE IMPROVEMENTS· Wireless Integration· Voice Command Functionality· Lighter Components· Reduction of Cost 13. FUTURESCOPE · Aswith most hi-tech electronics, head-up displays are set to become smaller andlighter. Micro Optical is working towards a model that will look no differentto a normal pair of glasses. · Inthe near future, head-up displays will be available with Wi-Fi and Bluetoothconnectivity, allowing users to surf the web and check their email on the move.· Therewill also be devices that will create full color images that look bigger than acinema screen, from a tiny head-mounted or handheld device.
This will open upapplications such as augmented vision and augmented reality.· Cardashboard information could be displayed by such a display, allowing real-timeinformation on the car, traffic and directions, to be superimposed anywhere inthe driver’s field of view.· Mappingwill take on a new leash of life with augmented reality and GPS technology.· Userswill be able to see a map of their current location displayed right on top ofthe real thing. This will aid navigation in cities and the countryside,allowing street names to appear on every road and virtual sign-posts to leadyou to your destination.
· Localinformation such as the nearest police or tube station could be overlayed ontoyour view along with directions to the nearest cash point or taxi rank. 14. CONCLUSIONS • It is smaller and lighter. • Users will be able to see a map of theircurrent location displayed right on top of the real thing. • This will aid navigation in cities andcountryside, allowing street names to appear on every road and virtualsign-posts to lead you to your destination.• In the near future,head-up displays will be available with Wi-Fi and Bluetooth connectivity,allowing users to surf the web and check their email on the move.•