> Lee Adamson wrote: > > > > What is the best way to eye-mount a CRT? I can't get it too close or I > > can't see it (and I'm afraid of radiation... You know what Ma used to > > say about sitting too close to the TV...), and the only design that I've > > come up with uses 3 mirrors and ends up covering too much of my head. > > Lee, > Although I'm in possesion of a camcorder crt, I havent had the luxury of > wearing yet. My initial thoughts where to mount in on the side of my > head using a web suspension from a hard hat (I'm a maintenance man in a > > Is there any way to make the Linux console display upside-down or > > backwards? That could solve the multiple mirror problem. I can fix up a for mounting, shielding, etc.: lynx http://wearcam.org/head-mounted-displays.html ... camcorder, or from a surplus supply) and easily adapted to mount over one eye. It's preferable to mount above the eye, rather than to the side, due to weight balance and, more importantly, the desire to minimize moment of inertia. The sense (whether a clockwise pattern appears clockwise or counterclockwise) of the display can be reversed by reversing the terminals on the deflection (yoke) coil. It is usually preferable to reverse the horizontal terminals rather than the vertical terminals owing to the fact that timing would otherwise get reversed quite severely (making it difficult to switch back and forth if you later decide to use a spinning filter wheel for color). Note, however, that the horizontal circuit operates at higher frequencies and higher voltages are often involved than in the vertical circuits. Thus insulate carefully, and keep leads as short as they were originally. ... to keep all the sharp optics (and pieces of broken glass if the tube implodes) out of your eye. Shields for the high voltage are also a good idea (see the copper mesh I have on [LINK] WearComp6). The copper mesh shield is grounded and also forms part of the ground plane for the antenna. ... if anyone else has actually mounted a CRT into a system and used it for some degree of time, i would be happy to add your findings to the wearcomp.org site. it would be nice to collect various designs. steve Prof. S. Mann WearComp/HI Lab University of Toronto, SF4205 -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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