Patterns Individual Patterns
Full Field Patterns
Technologies Best Image Size
Problems Wall Visions
Calibration and Upkeep
Geometry Luminance and
Processing Display Defects
is a creation of Walter Allen, a 30+ year professional in the research &
development, design, manufacture, sales and service of large screen video
displays. Mr. Allen was Chief Video Engineer at Advent, where "modern" day
video projection was born in the early 1970s. Since then he has held the
titles of either VP Engineering or VP Technology at Kloss Video, AmPro and
Elite Video. He worked extensively with Henry Kloss in making the earlier
projectors come to life. He has had video projection in his home
continuously since 1974, with the smallest projector being 64" diagonal. He
has lived with Wall Visions (video projection onto a white wall) since 1983.
You can contact him
you are wondering about our logo, not only are we
conveying the W stacked on the V for WalVisions,
but there are also aspects denoting stability, growth,
balance, and the center has a very positive connotation!
Yet overall there is a hint of vulnerability, as in life
and the world, things can't be taken for granted or the
whole thing could collapse. It's also nice that
the logo is easy to replicate!
you are wondering about the largely gray/colorless
themes on all the pages, this follows the theme of the
test patterns in a couple of ways. Firstly, it
provides an immediate quick check of your monitors gray
scale - if the backgrounds and various levels of gray
appear to be tinted in any way, your monitor is likely
in need of adjustment. Secondly, as you view the
pages your eyes will be neutralized and thus should not
retain any "color memory", then when you subsequently
check various test patterns involving color or gray
scale, you will be doing so with a neutral starting
we are growing, we welcome your comments. Please
contact us via email with any suggestions or questions. We are located in the Boston area, and are available for consulting
and special projects in selected applications.
While all information in this site is copyrighted, and all rights are reserved, we encourage the information to be freely used for personal and non-commercial use. Of course the reader must assume all responsibility for the consequences of any actions that may be taken as a result of the information provided herein. We hope that this information is used and shared in the spirit in which it is offered - one of education, enjoyment, cooperation, and good will.
Thanks for visiting, and have a nice day!