Projector stacking is an appropriate way to increase the brightness and visibility of a projected image. By physically stacking one projector on top of the other and combining the same two images onto one screen, you can better overcome ambient room light and maintain image clarity at greater distances from the screen. Both projectors must be the same model with identical lenses and have manual keystone and 3D reform control. This ensures that the final images can be seamlessly blended.
Instructions
Layout
1. Arrange the screen and projector stand so that the stand is directly in front of the screen. Consult the projector manual for the proper distance between the screen and the projector as it varies depending on the type of lens.
2. Set the first projector on the stand. Make sure there is adequate ventilation near the projector fan to prevent overheating. Most projector controls are located on the top, so do not stack the second projector yet.
3. Connect the monitor output port on the laptop to the input on the video distribution amplifier by using the first VGA cable.
4. Connect the video distribution amplifier outputs to each of the projector inputs with the remaining VGA cables.
Set Up
5. Power on the first projector and navigate through the menu to find the factory default. This will clear the projector settings and ensure a uniform starting platform.
6. Select the projector's internally generated crosshatch pattern and center the image on the screen. Use the lens shift and zoom controls to appropriately size the image.
7. Stack the second projector squarely on top of the first. Many projectors are designed specifically for stacking and will have indentations on top for the projector feet to fit securely. Power on and factory default the second projector.
8. With the first projector still showing its crosshatch pattern, generate that same crosshatch on the top projector. Use the zoom and lens shift controls to match the size of the images. The crosshatch horizontal and vertical lines should overlap and begin forming one image.
9. Fine tune the alignment using the keystone and 3D reform controls. These allow for precision correction which is necessary because the projectors are shooting at slightly different angles to the screen, warping the image.
10. Once the crosshatch patterns match, perfect the alignment by displaying an image or crosshatch pattern from the laptop. This will verify that both projectors are showing the same image precisely over the top of one another.
Tags: crosshatch pattern, first projector, second projector, distribution amplifier, factory default
