gobo in Italian

(film, photography, television) A screen (often in disc form) placed between a light and an illuminated actor or object in order to diffuse the glare. [from early 20th c.]

(theater) A template inserted over a light source to control the shape of the thrown light. [from early 20th c.]

(theater) A template inserted over a light source to control the shape of the thrown light. [from early 20th c.]