OV-501

Barco designed a projection module based on an innovative modular approach. The concept of having a separate projection unit and illumination unit is unique and results in an easy to maintain projection cube with superior picture quality. The optical dimmer guarantees equal brightness and contrast across the video wall and keeps the performance of the display constant over time.

Luminance guidelines

• All luminance values are given for on-axis viewing. The 50% luminance value will be present when viewing under the half gain angles (see ‘screens table’)
• All luminance values are measured at 6500 K color temperature, normally applied in control rooms for natural lighting conditions
• Luminance at other color temperatures can be communicated upon request

High-precision screen

• High-contrast, even in bright ambient light
• Type of screen is selected based on overall environmental conditions and operational requirements
• Excellent visibility under any viewing angle
• Patented screen modules with easy mounting and narrow screen gap
• All screens are double element screens to avoid hotspotting on each display

Projection unit

• Single-chip DLP™ technology
• XGA (1024x768) resolution
• Modular projection unit
• High contrast
• Ergonomic luminance
• Large color gamut spans the EBU/ SMPTE color triangle
• Easy to adjust
• Easy maintenance
• Removable color wheel cartridge
• Integrated optical dimmer
• Supports dual XGA mode

Illumination unit

• Modular illumination unit
• Removable for repair work
• Can be replaced without geometrical readjustment
• Contains all high power supplies
• Active system to reduce tolerancing on brightness

Multi Input Module (optional)

• Autosyncing
• DVI-I
• RGB on 15 pol sub-D (RGB/Hsync/Vsync)
  • Resolution VGA-UXGA
  • Pixel clock: 12 MHz-140 MHz
  • Horizontal frequency: 12 KHz-100 KHz
• Video: 2x cinch, PAL, NTSC, SECAM
• S-video: mini-Din 4 Pol
• DVI-D out
• Input selection
  • Channel selection by input selection tool
  • Can be set in automatic source switch-over for redundancy of sources
  • Via graphical user interface

Optical dimming with dynamic feedback

A patent pending optical dimming system in combination with a dynamic feedback control loop results in a uniform image across the wall and maintains the brightness over time.

This feature allows:

• independent brightness control of each module without loss of contrast or color depth,
• equal brightness, contrast and color depth across the video wall,
• equal luminance of the video wall across time,
• ergonomic dimming of full video wall for day and night operation