| Subject | English | Japanese |
| tech. | light source of perfectly diffusing surface | 完全拡散面光源 (かんぜんかくさんめんこうげん) |
| tech. | perfectly diffusing reflection | 完全拡散反射 (かんぜん・かくさん・はんしゃ) |
| tech. | perfectly diffusing surface | 完全拡散面 (kanzen-kakusanmen) |
| tech. | perfectly diffusing transmission | 完全拡散透過 (かんぜんかくさんとうか) |
| tech. | uniform brightness perfectly diffusing surface | 等輝度完全拡散面 (とうきどかんぜんかくさんめん) |