TABLE4 A= Person 1000 lux A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 B M M F M M M F M M M F F M M F M M F F F M M M M M F M F M M M M M F M M M M F F B= Sex C 20 21 20 20 20 20 20 21 24 21 21 21 21 23 21 22 21 22 22 23 21 19 19 26 21 20 21 22 21 20 20 18 24 18 19 21 19 19 21 19 C=Age 500 lux A D 1 50 40 2 32 3 4 33 75 5 43 6 7 30 8 33 26 9 10 40 11 38 12 38 13 33 14 35 49 15 48 16 17 50 29 18 19 50 47 20 21 36 49 22 56 23 15 24 10 25 26 50 39 27 28 58 45 29 46 30 31 35 17 32 60 33 46 34 52 35 36 36 42 37 44 38 56 39 60 40 D= Distance in Meters B F F F M M F M M M M F F M M M M M F F M M M F F F F C 20 21 21 23 20 23 21 21 20 21 21 21 25 22 21 20 21 20 22 24 21 19 19 21 21 19 21 19 18 18 18 18 19 18 19 19 26 22 22 21 F M F F F F F F F F M M M M D 36 50 44 38 36 47 44 43 36 41 41 46 40 49 50 45 43 35 32 30 51 45 40 41 22 55 58 44 50 49 47 45 49 26 42 42 20 29 41 53 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 M M F M M M M F F F F F F F F F F M F M M M M M F F M M M F F F F F F F F F F M Average 19 20 19 19 20 19 20 21 19 18 18 19 20 19 19 19 20 23 21 21 23 26 20 22 19 20 21 21 20 21 21 19 18 18 18 18 18 19 19 26 60 37 51 26 70 56 27 41 18 18 45 51 38 60 26 38 42 54 30 48 27 25 28 30 53 45 25 10 70 16 40 46 49 48 46 42 26 40 40 15 39 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 M M M M M F F F F M F M F F F F M F F M M M M M M F F F F F F M F M F M F 72 73 74 75 76 77 Average 20 26 26 20 20 22 19 19 19 21 18 21 18 21 19 20 21 21 20 19 20 20 20 19 19 19 19 18 19 22 20 21 21 22 21 21 18 32 25 60 17 49 34 60 60 41 39 30 31 22 51 30 54 21 42 56 70 65 60 42 27 56 21 53 47 31 34 65 42 50 60 34 61 45 42 Table 4: Experiment Data From Students of Nihan University Art Faculty With 500 lux, the average maximum distance is 31.6 meters. With 1,000 lux, the average maximum distance is 34.5 meters. In practice, we can take the dimension 34.5 meters and draw the depth of the auditorium. It will remain to decide where we want to locate the maximum depth of the playing area. For instance, if we put the deepest playing area point seven meters behind the proscenium, it willre embleFigure4. Thedepthofthe auditorium will be 34.5 -7.0, or 27.5 meters. Translated by Katsuhiro Makino & 1-1 Thealn' De,il(1l S. Teehllolol(~ ed A. Bowman LJSITT SUIlllller 19,'6 5 TABLE Visible Distance First Experiment Second Experiment Third Experiment Average 500 lux 33.021 m 27.9 33.89 31.6 m 1.000 lux 38.572 m 29.6 35.47 34.5 m