OverView fDG70-DL

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 built in lamp redundancy reduces operational costs and ensures a permanent image. The optical dimmer guarantees equal brightness and contrast across the display wall and keeps the performance of the display constant over time. All maintenance can be done from the front without interruption of the operation.

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

• provides 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
• screen modules with easy mounting and narrow screen gap (1.5 mm @ 22° C and 50% relative humidity)
• all screens are double element screens to avoid hotspotting on each display

Illumination unit

• modular illumination unit
• removable for repair work
• can be replaced without requiring geometrical readjustment
• contains all high power supplies
• integrated redundant lamp system
• active system to reduce tolerancing on brightness
• dual redundant lamp drivers
• choice between high brightness version with a 120W lamp or an economical version with lower cost of ownership with a 100W lamp (option)

Projection unit

• single-chip DLP™ technology
• XGA (1024x768)
• modular projection unit
• high contrast
• ergonomic luminance
• large color gamut spans the EBU/SMPTE color triangle
• easy to adjust by mini-zoom lens
• easy maintenance
• removable color wheel cartridge
• integrated optical dimmer

Viewing angle: angle at which the screen content is still viewable, regardless brightness
Half gain angle: angle at which brightness drops to half of on-axis brightness
⁽¹⁾ option, ⁽²⁾ on special request

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 display wall for day and night operation

OverView Control Manager

• control of the wall from any place
• graphical user interface represents the video wall on your desktop
• exchanges information between display modules
• video wall health status
• brightness control
• lamp overview and report

Redundancy concept

• dual lamp: 100% availability of your video wall
• 2 modes:
  Hot standby: 2nd lamp is on, i.e. the switching time in case of lamp failure of the master lamp is virtually zero
  Cold standby: 2nd lamp is switched off during operation, i.e. it will only be activated when master lamp failure is detected – switching takes around 30 seconds
• lamp change without direct operator intervention
• hot swappable lamps: failed lamp can be replaced while other lamp generates image
• lamp changes can be planned
• lower operational costs