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Specifications
96 Runco VX-44d/-55d Installation/Operation Manual
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Brightness and Contrast: Cinema Standards Measurement System (CSMS)
Specifications
- Brightness: 87.0 foot-Lamberts (fL) (VX-44d);
107.0 fL (VX-55d)
- Contrast Ratio (variable, based on lens aperture setting):
230:1 - 280:1 (VX-44d);
222:1 - 278:1 (VX-55d)
These measurements are taken from the projector in a controlled
theater environment. All measurements are made to ANSI/NAPM
IT7.228-1997 specifications using the Photo Research PR-650
SpectraColorimeter and Minolta LS-100 Luminance Meter, Video
Essentials test DVD and a 1.3 gain, 72-inch wide screen. The
projector is calibrated to a color temperature of 6,500K and has a
minimum of 150 hours of usage.
The foot-Lambert (fL) is the unit of measurement used in commercial
movie theaters to express image brightness at the screen surface. The
Society of Motion Picture and Television Engineers (SMPTE) specifies
16 fL as the target image brightness for film-based projectors using an
open gate (without film in the projector). More importantly, today
SMPTE specifies 12 fL as the target image brightness in Digital
Cinema theaters. The foot-Lambert measurement is dependent on
screen size, screen gain and projector light output.
Theater Calibration Specifications
- Light Output:
2780 ANSI Lumens (VX-44d);
3475 ANSI Lumens (VX-55d)
- Contrast Ratio (variable, based on lens aperture setting):
230:1 - 280:1 (VX-44d);
222:1 - 278:1 (VX-55d)
These specifications are obtained by calibrating the projector as
described above for CSMS measurements.
Industry-Standard Specifications
- Light Output:
4000 ANSI Lumens (VX-44d);
6000 ANSI Lumens (VX-55d);
- Contrast Ratio (variable, based on lens aperture setting):
1500 - 2000:1
These are typical projector brightness and contrast specifications
found in most companies’ sales literature. Runco includes these
measurements in its literature to allow for direct comparison with other
manufacturers’ projectors. These measurements are typically taken at
9,000K to 13,000K to get expected performance data when the
projector is used in professional, commercial and industrial displays.
Power Requirements: VX-44d:
100 to 240 VAC (auto-sensing), 50/60 Hz, 1,650 Watts
(5631.4
BTUs/hour)
VX-55d:
200 to 240 VAC, 50/60 Hz, 2,100 Watts (7167.3 BTUs/hour)
Operating Environment: 41°F to 95°F (5°C to 35°C), 20% to 80% humidity
(non-condensing)
Dimensions: See Figure 7-1
Weight (without lens): VX-44d: 120 lbs. (54.43 kg)
VX-55d: 130 lbs. (58.97 kg)
Regulatory Approvals: Complies with FCC (Class A), CE, C-Tick
Table 7-1. VX-44d/-55d Specifications (continued)