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In many home entertainment applications, a perforated screen is often utilized. As in commercial cinemas, this allows transparent sound to radiate from the center channel behind the screen.
Although rare, when using any fixed resolution projection device, including DLP™ technology on a perforated screen, a moiré pattern may sometimes be a visible artifact. The moiré is caused by the interaction of the DLP™ mirror array, or the source frequency, with the screen perforation pattern. If you experience this phenomenon, you can minimize moiré by applying some or all of the
following steps:
- Slightly increase the size of the projected image. Use projector blanking to mask the overshoot of the image.
- Adjust the projector pixel clock for the source.
- If the above options do not work, slightly defocus the image.
- If all else fails, consider utilizing a perforated screen with a different perforation pitch.
Tech
Tip Archive
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Demo Program: Home Cinema Dealers
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Home
Cinema Dealers may purchase (1) demonstration iVision projection system
per calendar year at 50% off DPI's published list price. So long as
that unit is maintained in the Dealer's demonstration inventory through
the end of the calendar year it was purchased, and the dealer retains
in their employ at least one technical associate who has received
Digital Projection training certification, the Dealer qualifies for
Elite Home Cinema end column pricing on all additional iVision projectors
purchased through the end of the same calendar year.
- Home
Cinema Dealers may purchase (1) demonstration 3-chip DLP projection
system per calendar year at 50% off DPI's published list price. So
long as that unit is maintained in the Dealer's demonstration inventory
through the end of the calendar year it was purchased, and the dealer
retains in their employ at least one technical associate who has received
Digital Projection training certification, the Dealer qualifies for
Elite Home Cinema end column pricing on all additional 3-chip DLP
projectors purchased through the end of the same calendar year.
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For both iVision and 3-chip demo projectors, Home Cinema Dealers in
good credit standing receive standard payment terms - 2% cash with
order, 1% 10 days, net 30 days .
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Alternatively,
upon credit approval, Home Cinema Dealers my purchase (1) MERCURY
3 Chip projection system per calendar year at DPI's published end
column dealer price with payment terms of 12 monthly payments at
0% interest. Certain restrictions apply.
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