What you will learn inside this guide:
- The working principle of gobo projector
- The structre of gobo projector
- How to make the Gobo
- The difference projection effect
The working principle of gobo projector
The gobo projector light which use the principle of convex lens imaging.when the distance between 1x to 2x from the object to the convex lens and become an inverted or enlarged image. When the convex lens is a real image, the closer to the convex lens with the object, the larger with the image. The farther away, the smaller the image is. Therefore, if you want to make the image bigger, you should move the gobo closer to the lens. However, the distance also changes. If the distance between the lens and the projection position is not changed accordingly, the projection image will be blurred, Follow the pattern of convex lens imaging.: when the distance decreases, the image becomes larger. The distance becomes larger; the distance between the lens and the screen should be increased appropriately, That is the gobo projector need keep far away from the projection position. When we use the gobo projector , we need to adjust the lens so that the image becomes clear. The process of adjusting the lens is to change the distance between the gobo and the imaging lens.
The structre of gobo projector:
There are different kinds of gobo projector but with the same structre and principle.
Generally consists of four parts: optics, airframe, mechanical transmission, and electrical control.
The optical part is the main component of the logo projector light. Its main effect is to project any clear logos or images with enough light on the projection surface.
It consists of a light source, a condenser lens, and an imaging lens.
How to make the Gobo ?
1. Make the glass material first. which make the metal plating on it . It can be reached different colors if plating different metal materials.
2. A glass can only be plated in a color.
3. Use high precision laser engraving machine engraved on the coating of plated gobo.Then finish to make the gobo.
The difference projection effect :
Although the principle of gobo projector on the market is the same ,but the projection image is difference .
As the cost is big difference . The different projection image is mainly caused by the optical part .It depends on the selection of the light source .
The best projection image usually adopt Cree Led light source , small size, high brightness, uniform light. It is more than 30% brighter than the average domestic LED light source.
With different brands of gobo projector in the market today, one of the very best is the Baykal gobo projector .
Here is why you need one:
- Adopt Cree LED light source
- Reasonable design structure, achieve the best projection effect.
- Use imported gobo. Not easy to fade color
- Warranty 2 year