I theory, your "automatic" argument sounds compelling. But there may be a few reasons why it has not been implemented into HMDs yet: 1) Cost. Manual dials cost less than the automatic adjustment infrastructure. 2) No common base point. Since we are all different, where would the factory set point for each variable be? If you need a knob to set the auto set point, why not get rid of the auto set electronics all together and just keep the knobs? 3) Purkinje shift. When the intensity of a multi color display is lowered, the colors will sequentially shift to the gray levels. First the blues, then the reds, and lastly the greens. Therefore, as the intensity of the panel is lowered to accommodate for a low light conditions, the color selection becomes limited as the "higher" colors would already be in the grays. 4) Size. Space is limited and every ounce matters in HMD design. Most of these settings can already be adjusted with current color HMDs though software. Just set your display "theme" to the proper color combination and intensity for your environment. -Tony > I've been arguing that head-up displays should do > "autochromaticity" (adapting the computer display foreground > to provide highest contrast with ambient > environment) as well as autobrightness and autofocus. As > far as ease of implementation I suspect > > autobrightness is easier than autochromaticity is easier than > autofocus > > yet I suspect that as far as importance: > > autofocus more important than autobrightness more important > than autochromaticity > > or, maybe autobrightness should be first > > In actuality, I'm sure, like Rhodes says, "it depends on the > application" > > Thad > > ------------------------- > I'd like to see this with options for fixing the backlight > other than white (in a see-through package). For example, in > an outdoor augmented reality situation, with a hazy blue sky, > I won't see white text, but I may see red (like the Nomad). > So 10 shades of red would be useful. But during a sunset Blue > could be preferable, and magenta when in the jungle, et > > -- > Subscription/unsubscription/info requests: send e-mail with > subject of "subscribe", "unsubscribe", or "info" to >Wear-Hard Mailing List Archive > (searchable): http://wearables.blu.org Please, *PLEASE* don't > subscribe through a forward/expander/false domain > > -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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