A gobo is a small, circular stencil placed inside a lighting fixture to project a specific image or pattern onto a surface. The term “gobo” stands for “Go Between Optics”, which describes its position in the light path of the fixture.
Gobos are commonly used in settings like theater, film, television, and live events to enhance visual appeal and create dynamic effects. They can project images such as company logos, abstract breakup patterns, or custom designs, adding depth and artistic flair to a scene.
Key Facts About Gobos
Types of Gobos
- Steel Gobos:
- Typically black and white,
- durable, but have a shorter lifespan.
- Glass Gobos:
- More detailed and colorful, longer-lasting, but more expensive.
- Plastic Gobos:
- Lightweight, affordable, and usable across various temperature ranges.
- Sizes
- Gobos come in different diameters, usually between 20 mm and 150 mm, depending on the lighting fixture.
Movement
- Gobos come in different diameters, usually between 20 mm and 150 mm, depending on the lighting fixture.
- Static Fixture:
- The projected image stays stationary.
Intelligent Fixture: The image can move across the space dynamically.
- The projected image stays stationary.
- Projection Distance
- The closer the gobo is to the light source, the larger but blurrier the projected image will appear.
- Light Source Compatibility
Gobos require a small, hard light source, such as direct sunlight or a bare flash unit, to work effectively.
Conclusion
Gobos are versatile tools for creative lighting design, capable of transforming any space with stunning visuals. Whether used for professional productions or personal events, understanding the types, sizes, and proper use of gobos ensures optimal results.