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Home > Blog > Common Problems and Solutions for Non-Flat Surface Projection with Gobo Projector Lamps

Common Problems and Solutions for Non-Flat Surface Projection with Gobo Projector Lamps

2023-07-27  151

One of the joys of a gobo projector light is the ability to display an image on almost any surface. While flat surfaces ensure that images are clearly visible, not all surfaces are smooth and texture-free. Sometimes we may need to project an image on the edge of a building, water, window, foliage, or mountain. This creates certain challenges for projection. In order to fulfill your need for image range, we have successfully solved the common problems of non-flat surface projection.

Solutions to Common Non-Flat Surface Projection: For most non-flat surfaces, there are some common projection challenges that we need to overcome in order to get a clear image. Below are a few of the most common non-flat surface projection problems and solutions summarized by our engineers.

The image appears distorted: This usually occurs when the surface is higher than the viewer, such as a cliff face or tall building. To solve this problem, you can place the projection lamp vertically (e.g. in a window of an adjacent building). When vertical projection is not possible, you can try mounting the unit on the ground, although this may cause some trapezoidal distortion. To avoid image distortion, you can try raising the projection lamp to a horizontal position close to the projection surface, which will reduce distortion. In addition, images in landscape format are less distorted than those in portrait format when the unit is at an upward or downward angle relative to the projection surface. However, the opposite may occur when projecting from the side.

Inability to raise the projection lamp: If you are unable to raise the projection lamp, try increasing the projection distance to reduce the projection angle and minimize distortion. Most lamp manufacturers can pre-adjust the image on the gobo to correct the angle, which we call trapezoidal correction. However, this process is more difficult because it requires the manufacturer to know your specific setup and location, including information such as the lens of the projector lamp, distance from the projection surface, and elevation angle, in order to make geometric calculations.

By addressing these common non-flat surface projection issues, we can ensure a clear and eye-catching image projection on any challenging surface. Whether it's a building, water surface, window, etc., or any other unexpected surface, the Picture Projection Lamps are able to show off their uniqueness.

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