Many friends will encounter some problems when purchasing the home theater projection screen. The more common one is how big the projection screen is, what material is good, and how far the distance can project a 120-inch screen. Here we Let me introduce how to calculate (see the relevant knowledge here to see here: "How to choose home theater curtain and related parameter calculation"). Usually we say that the 100-inch projection screen refers to the projection screen with a diagonal length of 100 inches, but in actual use, we need to convert him into a wide width, and the unit should be replaced by centimeters, 1 inch = 2.54 cm.
16:9
Length = diagonal x 0.8716
Width = diagonal x 0.4903
example:
100 inch screen
Length = 100 x 0.8716 = 87.16 inches = 87.16 x 2.54 = 221.39 (cm)
Width = 100 x 0.4903 = 49.03 inches = 49.03 x 2.54 = 124.54 (cm)
4:3
Length = diagonal x 0.8
Width = diagonal x 0.6
example:
100 inch screen
Length = 100 x 0.8 = 80 inches = 80 x 2.54 = 203.2 (cm)
Width = 100 x 0.6 = 60 inches = 60 x 2.54 = 152.4 (cm)
Alternatively, calculate the size of the projection screen by measuring the length and width:
4:3 screen size (inches) = [screen width (m) × 5 / 4] × 100 / 2.54
16:9 screen size (inches) = [screen width (m) × 18.257 / 16] × 100 / 2.54
The length and width of the common dimensions (size inch=width mm*length mm) are listed below, and the omission after the decimal point
4:3
45"x60"(75") = 1160x1530
50"x67"(84") = 1300x1710
60"x80"(100") = 1540x2030
72"x96"(120") = 1850x2440
81"x108"(135") = 2080x2740
90"x120"(150") = 2310x3050
108"x144"(180")= 2770x3660
120"x160"(200")= 3080x4065
16:9
41"x72"(82") = 1591x1830
45"x80"(92") = 1702x2030
49"x87"(100") = 1798x2210
59"x105"(120") = 2051x2660
Attach a calculation tool for the projection distance and screen size of each brand model http://
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