Gobo

A pattern, flag, or cutter placed in a light path to shape, block, or texture illumination.

Use cases

Choose the tool based on the required result, environment, and manufacturer limits.

Setup

Inspect before use, secure the setup, and keep paths clear.

Alternatives

go-between
goes before optics

Safety notes

Follow manufacturer instructions and local workplace rules.

In practice

In theatrical lighting, a gobo is commonly a metal or glass pattern placed at a fixture’s focal plane for projection. On film sets, “gobo” may also mean an opaque flag placed between light and subject, so crews should name the intended tool.

Gobo choices

Pattern: Use a hard pattern for defined texture and a softer material for broader breakup.
Placement: Place the gobo in the fixture’s intended accessory plane and respect heat limits.
Control: Combine with shutters, focus, distance, and diffusion to tune the edge.

Name origin

Trade usage varies by region and source. Treat informal explanations as probable rather than definitive.

Confidence: Probable