showstack / glossary / gobo
Gobo 圖案片（gobo）
A cut metal or etched glass template placed at the gate of a profile fixture so the beam projects a pattern: leaves, window bars, texture, a logo. Sizes follow fixture-specific gate dimensions, so a gobo is bought against a fixture, not against a universal standard.
中文
放在聚光燈成像位置的金屬或玻璃片，讓光投射出圖案：樹葉、窗格、質感、標誌。尺寸依燈具的片框規格而定，所以買 gobo 要對著燈具型號買，沒有通用尺寸。
Regional usage
| Where | Term | Note |
|---|---|---|
| HK / TW | Gobo | 口語直接用英文，書面寫「圖案片」。 |
Easy to get wrong
In audio a gobo is a movable acoustic screen used to isolate a source. Same word, different department, completely different object.
對燈光組講「圖案片」沒問題，對影視或音響組講可能被理解成別的東西，講 gobo 最不會出錯。
Glass and metal gobos are not interchangeable in every fixture. Holder depth and heat handling differ, and a glass gobo in the wrong gate cracks.
Next to this
Gel色紙A sheet of coloured polyester or polycarbonate placed in front of a lamp to colour the beam. Modern gel is no…Focus對燈Pointing and shaping each lighting fixture: where the beam lands, how hard the edge is, what it has to miss. …
Sources
- Gobo (lighting) — Wikipedia primary
- Stage lighting — Wikipedia
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