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The strobe unit on the front of a Vicon Vantage camera uses very powerful surface-mounted light-emitting diodes (LEDs) to illuminate the capture volume. The standard LEDs fitted to Vicon Vantage camera strobe units emit infrared (IR) light at 850nm. This is only slightly visible to the naked eye in very dark surroundings. For information about other LED wavelengths, please contact Vicon Sales or your nearest agent or distributor.

In your Vicon application software on the Vicon Vantage host PC, you can set each camera's strobe duration individually or set all the camera strobes together. From then on, your Vicon application software remembers these settings and re-applies them on power up or from reset.

Warning
Do not look directly at the source when an Infrared (IR) strobe unit is in operation.


The strobe unit emits a powerful flash of light once per video frame at precisely the same time as the image sensor's global electronic shutter opens. This flash illuminates the retroreflective markers attached to the motion capture subject. The reflected light passes back through the lens and optical filter. The spectral characteristics of the filter ensure that only light with the same wavelength as the LEDs passes back into the camera.

In the camera, the lens collects the light and forms a focused image of the markers on the camera's image sensor plane. The camera electronically converts the pattern of light into data that ultimately represents the position and radius of each marker in the image. For more information on the filters and lenses supplied, see Vicon Vantage camera lenses.

Tip
When the cameras are used outdoors, try to position the cameras to minimize the ambient light as the filter cannot distinguish ambient light of the same wavelength as that of the strobe.

To match and therefore optimize the field of view of the light from the LEDs to that of the lens and therefore the capture volume, secondary optics fit over the LEDs. Each LED effectively sits inside its own secondary lens. This converts the natural wider field of illumination of the LED to that of the fitted lens. In this way the same strobe can be optimized to different lenses through different secondary optics. For more information, see Field of View

Caution
Vicon Vantage cameras contain no user-serviceable components. For all servicing, and any alterations, including lens or strobe change, you must return the camera to Vicon. Any attempt by you or any third party to alter or repair a Vantage camera may invalidate its warranty.

For more information, see:

Strobe unit and camera status LEDs

Two pairs of tri-color LEDS provide feedback on camera operation. One pair is situated on either side of the camera, and the second pair is situated on either side of the strobe. All four LEDs operate simultaneously, and display the same color at the same time. These status LEDs can be disabled through the Vicon application software.

Note
In certain camera modes and in certain system configurations, the status LEDs on the camera are automatically turned off to ensure maximum power is available to the strobe.


While the camera is booting, the OLED display shows the Vicon logo (unless a connected application causes it to display something else) and the status LED color changes from magenta during booting, to red when booting is complete.


When the cameras are communicating with Vicon application software, the status LEDs turn blue.

After the camera has booted, you can view the cameras' status by observing the status LEDs and the OLED display on each camera), and also by monitoring the cameras in the Vicon application software. For information on the significance of the status LEDs' colors in combination with the symbols on the OLED display, see OLED display.

OLED display

The OLED display comprises 128 x 64 alphanumeric characters, which, combined with the LED color, give information about the current camera status.

As shown in the following table, when the camera has booted, and unless the display has been disabled in the Vicon application software, the display shows the camera number. Other common display states are also shown.

DisplayDescriptionCamera status
Vicon logoBooting
Camera numberBooted
Camera number and bumped iconBumped
Camera number and disabled iconDisabled
Camera number and start calibration iconCalibration started
Camera number and pie chartCalibration in progress
Camera number and complete pie chartCalibration complete
Display turned off in Vicon application softwareNA

Additional information is available when you view the OLED display in combination with the color of the status LEDs. (Note that the status LED colors listed below are subject to change.)

DisplayStatus LED colorStatus
BlueEnabled (default)
RedNot contributing
Red (flashing)Bumped
OffDisabled
MagentaSelected
OffCalibration (Wand count == 0)
(The start calibration icon indicates that calibration has started.)
Magenta (flashing, period decreases with wand count)Calibration (0 < Wand count < Required wands)
The pie chart indicates the fraction of the required wands that have been received from this camera.
GreenCalibration (Wand count >= Required wands)
CyanAutomasking
OffStatus LEDs disabled

The order of priority is from top of the above table (lowest) to bottom (highest), so that the LEDs for a camera that is both bumped and selected are magenta.

Unless accelerometry is switched off in the Vicon application software, the image on the display rotates based on the orientation of the camera.