| English | German |
| controlled diffuser | gesteuerter Diffusor |
| Lambertian diffuser | Lambertscher Strahler (emitter, reflector) |
| light diffuser | Diffusorscheibe |
| perfect diffuser | völlig diffus strahlender Körper |
| uniform diffuser | völlig diffus strahlender Körper |
| uniform diffuser | Lambertsche Fläche (a surface which appears to be of the same brightness in all directions) |