I needed to make some form of wearable head up display that also allowed me to work simultaneously, i.e. see what I was doing at the same time, to test the feasibility of a concept for a research idea I have had. I needed to for example be able to remotely watch a video screen with data on it and also later may want to view protocols, checklists etc on this "head up" display.
The proper name for this is a monocular HMD (Head Mounted Display).
A number of video-glasses already exist for watching DVD's for example and these generate an image for each eye. The downside is that you cannot see your surroundings while wearing them.
So-called monocular (one eye) displays do exist but can be very expensive. I already had an old pair of Olympus Eye-Trek(TM) video glasses, which are (relatively) inexpensive and decided to hack them and embed one of the display units into a pair of workmans safety glasses.
Then, having made this display work, I used the innards of a wireless security camera / receiver combination to make the system work wirelessly and finally packaged all the circuits with appropriate batteries into a just-about-pocket-sized container.
This project might also interest the "wearable computer" fraternity. You could also attach an infra red camera to it to give yourself night-vison.
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Signing UpStep 1Another view of finished glasses
The box on the left contains a video receiver from a low cost security camera video transmitter / receiver combination plus batteries, plus the drive circuitry from the Olympus Eye-Trek(TM) video glasses.
The small circuit board and one set of optics from the video glasses are mounted in the safety glasses on the right.
These glasses may look bulky but it is actually better than some commercial systems out there, very light in weight too.
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I have glasses to help my vision, but if I try to see anything that close, it's just one big blur.
http://www.clydeshaffer.com/clydeshaffer/hmd.htm for pics because I haven't made an instructable for it.
http://www.cvc.uab.es/intra-web/Wiley%20-%20Intelligent%20Image%20Processing.pdf
I copied following passage from the link http://encarta.msn.com/encyclopedia_761584746/three-dimensional_image.html
Three-Dimensional Image, or 3-D image, flat image enhanced to impart the illusion of depth. Humans perceive the world and the objects in it in three dimensions—breadth, width, and depth. This seemingly simple phenomenon is the product of a complicated set of interactions between our eyes and our brains that is still not entirely understood. Our eyes are spaced about 6 cm (2.5 in) apart, which causes each eye to receive a slightly different image. The brain fuses these two images into a single 3-D image, enabling us to perceive depth. This way of seeing is called binocular vision, or stereoscopic vision
Go ahead and do it . This very useful in laporoscopic surgery. Already similar thing is developed it is very expensive.