13.15.1 Dark time adjustment

What can be done?

The principle of a pair of Stereo Glasses is :

  1. When the left image is projected, the left shutter is open, allowing the left eye to see the left image. The shutter for the right eye is closed.
  2. During the blanking period, before projecting the right image, the left shutter is closed and the right shutter will open.
  3. The right image is projected, the right shutter is open, allowing the right eye to see the right image.

The ideal situation is when the opening/closing times of these shutters are in sync with the blanking time of DLP mirrors.

Image 13–157 Opening/closing times of the shutters in sync with the blanking time

Closing these shutters too late and/or opening too early will cause Cross-Talk.

Image 13–158 Shutters closing too late and/or opening too early cause Cross-Talk

Closing these shutters too quickly and/or opening too slowly will cause Color Artifacts.

Image 13–159 Shutters closing too early and/or opening too late cause Color Artifacts

Adjusting the Dark Time will allow an easy synchronization of the Blanking Period of the DLP mirrors with the opening/closing time of the shutters in the Stereo Glasses.

How to adjust the dark time

  1. Press Menu to activate the menus and select Alignment → 3D Glasses .

    Image 13–160 Main window
    Image 13–161 Alignment, 3D glasses
  2. Press ENTER.

  3. Use the ▲ or ▼ key to select Dark Time Adjustment

    Image 13–162 Dark time adjustment

  4. Use the ◄ or ► key to change the dark time until the correct value is reached.

    The actual used dark time is indicated next to Actual Dark Time.