|Quote, originally posted by QuickA2 »|
|GOTAPEX is a pimp |
What is the definition of a fill factor?
WHy the use of a bathroom rail to mount the projector?
All digital devices are pixel based. Each pixel has a dark space around it:
The ratio of the lit center space to the entire space is called the fill factor.
LCD projectors typically have a 40-60% fill factor. This gives you the illusion of looking at the picture through a screen door (also known as the screen door effect). Newer Multi-Lens Array (MLA) equipped LCD's have a rated fill factor of upwards of about 80% of so, but it still appears lower than this.
Single chip consumer DLP's have a fill factor of about 85%. The 3-chip cinema models have a fill factor of 88-90%, sometimes more.
DILA/LCOS projectors have a fill factor of >92% on average, giving you the most smooth, filmlike picture (holding other specs constant).
I'm using a handicap rail for the mounting because I tend to change projectors so often. Each projector has a different throw distance, and, more importantly, each has an IDEAL distance for contrast and brightness within the available optical zoom range. The rail allows me to mount each projector the correct distance for optimal visual quality, without having to build a new mount each time.
BTW, I'm not a pimp, if I was, I'd be using this:
JVC DLA-QX1G 3-chip D-ILA Projector
QXGA native (2048 x 1536)
7000 ANSI lumens
1000:1 contrast (actually, much higher now, this was initial rating)