16 :9长=对角线 x 0.8716宽=对角线 x 0.4903例:100寸幕长=100 x 0.8716 = 87.16英寸 = 87.16 x 2.54 = 221.39 (cm)宽=100 x 0.4903 = 49.03英寸 = 49.03 x 2.54 = 124.54 (cm)4 :3长=对角线 x 0.8宽=对角线 x 0.6例:100寸幕长=100 x 0.8 = 80英寸 = 展开
16 :9长=对角线 x 0.8716宽=对角线 x 0.4903例:100寸幕长=100 x 0.8716 = 87.16英寸 = 87.16 x 2.54 = 221.39 (cm)宽=100 x 0.4903 = 49.03英寸 = 49.03 x 2.54 = 124.54 (cm)4 :3长=对角线 x 0.8宽=对角线 x 0.6例:100寸幕长=100 x 0.8 = 80英寸 = 80 x 2.54 = 203.2 (cm)宽=100 x 0.6 = 60英寸 = 60 x 2.54 = 152.4 (cm)另一种,通过测量长宽计算投影幕的尺寸:4:3屏幕尺寸(英寸) =〔屏幕宽度(米)×5/4〕×100/2.5416:9屏幕尺寸(英寸)=〔屏幕宽度(米)×18.257/16〕×100/2.54下面列出常见尺寸的长宽(尺寸inch=宽mm*长mm),小数点后面的省略4 :345"x60"(75") = 1160x153050"x67"(84") = 1300x171060"x80"(100") = 1540x203072"x96"(120") = 1850x244081"x108"(135") = 2080x274090"x120"(150") = 2310x3050108"x144"(180")= 2770x3660120"x160"(200")= 3080x406516 :941"x72"(82") = 1591x183045"x80"(92") = 1702x203049"x87"(100") = 1798x221059"x105"(120") = 2051x2660 收起
