投影尺寸计算器填写任意一项即可计算

1.2 :1

0.1 :1

0.11 :1

0.12 :1

0.13 :1

0.14 :1

0.15 :1

0.16 :1

0.17 :1

0.18 :1

0.19 :1

0.2 :1

0.21 :1

0.22 :1

0.23 :1

0.24 :1

0.25 :1

0.26 :1

0.27 :1

0.28 :1

0.29 :1

0.3 :1

0.31 :1

0.32 :1

0.33 :1

0.34 :1

0.35 :1

0.36 :1

0.37 :1

0.38 :1

0.39 :1

0.4 :1

0.41 :1

0.42 :1

0.43 :1

0.44 :1

0.45 :1

0.46 :1

0.47 :1

0.48 :1

0.49 :1

0.5 :1

0.51 :1

0.52 :1

0.53 :1

0.54 :1

0.55 :1

0.56 :1

0.57 :1

0.58 :1

0.59 :1

0.6 :1

0.61 :1

0.62 :1

0.63 :1

0.64 :1

0.65 :1

0.66 :1

0.67 :1

0.68 :1

0.69 :1

0.7 :1

0.71 :1

0.72 :1

0.73 :1

0.74 :1

0.75 :1

0.76 :1

0.77 :1

0.78 :1

0.79 :1

0.8 :1

0.81 :1

0.82 :1

0.83 :1

0.84 :1

0.85 :1

0.86 :1

0.87 :1

0.88 :1

0.89 :1

0.9 :1

0.91 :1

0.92 :1

0.93 :1

0.94 :1

0.95 :1

0.96 :1

0.97 :1

0.98 :1

0.99 :1

1 :1

1.1 :1

1.11 :1

1.12 :1

1.13 :1

1.14 :1

1.15 :1

1.16 :1

1.17 :1

1.18 :1

1.19 :1

1.2 :1

1.21 :1

1.22 :1

1.23 :1

1.24 :1

1.25 :1

1.26 :1

1.27 :1

1.28 :1

1.29 :1

1.3 :1

1.31 :1

1.32 :1

1.33 :1

1.34 :1

1.35 :1

1.36 :1

1.37 :1

1.38 :1

1.39 :1

1.4 :1

1.41 :1

1.42 :1

1.43 :1

1.44 :1

1.45 :1

1.46 :1

1.47 :1

1.48 :1

1.49 :1

1.5 :1

1.51 :1

1.52 :1

1.53 :1

1.54 :1

1.55 :1

1.56 :1

1.57 :1

1.58 :1

1.59 :1

1.6 :1

1.61 :1

1.62 :1

1.63 :1

1.64 :1

1.65 :1

1.66 :1

1.67 :1

1.68 :1

1.69 :1

1.7 :1

1.71 :1

1.72 :1

1.73 :1

1.74 :1

1.75 :1

1.76 :1

1.77 :1

1.78 :1

1.79 :1

1.8 :1

1.81 :1

1.82 :1

1.83 :1

1.84 :1

1.85 :1

1.86 :1

1.87 :1

1.88 :1

1.89 :1

1.9 :1

1.91 :1

1.92 :1

1.93 :1

1.94 :1

1.95 :1

1.96 :1

1.97 :1

1.98 :1

1.99 :1

2 :1

2.01 :1

2.02 :1

2.03 :1

2.04 :1

2.05 :1

2.06 :1

2.07 :1

2.08 :1

2.09 :1

2.1 :1

2.11 :1

2.12 :1

2.13 :1

2.14 :1

2.15 :1

2.16 :1

2.17 :1

2.18 :1

2.19 :1

2.2 :1

2.21 :1

2.22 :1

2.23 :1

2.24 :1

2.25 :1

2.26 :1

2.27 :1

2.28 :1

2.29 :1

2.3 :1

2.31 :1

2.32 :1

2.33 :1

2.34 :1

2.35 :1

2.36 :1

2.37 :1

2.38 :1

2.39 :1

2.4 :1

2.41 :1

2.42 :1

2.43 :1

2.44 :1

2.45 :1

2.46 :1

2.47 :1

2.48 :1

2.49 :1

2.5 :1

2.51 :1

2.52 :1

2.53 :1

2.54 :1

2.55 :1

2.56 :1

2.57 :1

2.58 :1

2.59 :1

2.6 :1

2.61 :1

2.62 :1

2.63 :1

2.64 :1

2.65 :1

2.66 :1

2.67 :1

2.68 :1

2.69 :1

2.7 :1

2.71 :1

2.72 :1

2.73 :1

2.74 :1

2.75 :1

2.76 :1

2.77 :1

2.78 :1

2.79 :1

2.8 :1

2.81 :1

2.82 :1

2.83 :1

2.84 :1

2.85 :1

2.86 :1

2.87 :1

2.88 :1

2.89 :1

2.9 :1

2.91 :1

2.92 :1

2.93 :1

2.94 :1

2.95 :1

2.96 :1

2.97 :1

2.98 :1

2.99 :1

3 :1

3.01 :1

3.02 :1

3.03 :1

3.04 :1

3.05 :1

3.06 :1

3.07 :1

3.08 :1

3.09 :1

3.1 :1

3.11 :1

3.12 :1

3.13 :1

3.14 :1

3.15 :1

3.16 :1

3.17 :1

3.18 :1

3.19 :1

3.2 :1

3.21 :1

3.22 :1

3.23 :1

3.24 :1

3.25 :1

3.26 :1

3.27 :1

3.28 :1

3.29 :1

3.3 :1

3.31 :1

3.32 :1

3.33 :1

3.34 :1

3.35 :1

3.36 :1

3.37 :1

3.38 :1

3.39 :1

3.4 :1

3.41 :1

3.42 :1

3.43 :1

3.44 :1

3.45 :1

3.46 :1

3.47 :1

3.48 :1

3.49 :1

3.5 :1

3.51 :1

3.52 :1

3.53 :1

3.54 :1

3.55 :1

3.56 :1

3.57 :1

3.58 :1

3.59 :1

3.6 :1

3.61 :1

3.62 :1

3.63 :1

3.64 :1

3.65 :1

3.66 :1

3.67 :1

3.68 :1

3.69 :1

3.7 :1

3.71 :1

3.72 :1

3.73 :1

3.74 :1

3.75 :1

3.76 :1

3.77 :1

3.78 :1

3.79 :1

3.8 :1

3.81 :1

3.82 :1

3.83 :1

3.84 :1

3.85 :1

3.86 :1

3.87 :1

3.88 :1

3.89 :1

3.9 :1

3.91 :1

3.92 :1

3.93 :1

3.94 :1

3.95 :1

3.96 :1

3.97 :1

3.98 :1

3.99 :1

4 :1

4.01 :1

4.02 :1

4.03 :1

4.04 :1

4.05 :1

4.06 :1

4.07 :1

4.08 :1

4.09 :1

4.1 :1

4.11 :1

4.12 :1

4.13 :1

4.14 :1

4.15 :1

4.16 :1

4.17 :1

4.18 :1

4.19 :1

4.2 :1

4.21 :1

4.22 :1

4.23 :1

4.24 :1

4.25 :1

4.26 :1

4.27 :1

4.28 :1

4.29 :1

4.3 :1

4.31 :1

4.32 :1

4.33 :1

4.34 :1

4.35 :1

4.36 :1

4.37 :1

4.38 :1

4.39 :1

4.4 :1

4.41 :1

4.42 :1

4.43 :1

4.44 :1

4.45 :1

4.46 :1

4.47 :1

4.48 :1

4.49 :1

4.5 :1

4.51 :1

4.52 :1

4.53 :1

4.54 :1

4.55 :1

4.56 :1

4.57 :1

4.58 :1

4.59 :1

4.6 :1

4.61 :1

4.62 :1

4.63 :1

4.64 :1

4.65 :1

4.66 :1

4.67 :1

4.68 :1

4.69 :1

4.7 :1

4.71 :1

4.72 :1

4.73 :1

4.74 :1

4.75 :1

4.76 :1

4.77 :1

4.78 :1

4.79 :1

4.8 :1

4.81 :1

4.82 :1

4.83 :1

4.84 :1

4.85 :1

4.86 :1

4.87 :1

4.88 :1

4.89 :1

4.9 :1

4.91 :1

4.92 :1

4.93 :1

4.94 :1

4.95 :1

4.96 :1

4.97 :1

4.98 :1

4.99 :1

5 :1

5.01 :1

5.02 :1

5.03 :1

5.04 :1

5.05 :1

5.06 :1

5.07 :1

5.08 :1

5.09 :1

5.1 :1

5.11 :1

5.12 :1

5.13 :1

5.14 :1

5.15 :1

5.16 :1

5.17 :1

5.18 :1

5.19 :1

5.2 :1

5.21 :1

5.22 :1

5.23 :1

5.24 :1

5.25 :1

5.26 :1

5.27 :1

5.28 :1

5.29 :1

5.3 :1

5.31 :1

5.32 :1

5.33 :1

5.34 :1

5.35 :1

5.36 :1

5.37 :1

5.38 :1

5.39 :1

5.4 :1

5.41 :1

5.42 :1

5.43 :1

5.44 :1

5.45 :1

5.46 :1

5.47 :1

5.48 :1

5.49 :1

5.5 :1

5.51 :1

5.52 :1

5.53 :1

5.54 :1

5.55 :1

5.56 :1

5.57 :1

5.58 :1

5.59 :1

5.6 :1

5.61 :1

5.62 :1

5.63 :1

5.64 :1

5.65 :1

5.66 :1

5.67 :1

5.68 :1

5.69 :1

5.7 :1

5.71 :1

5.72 :1

5.73 :1

5.74 :1

5.75 :1

5.76 :1

5.77 :1

5.78 :1

5.79 :1

5.8 :1

5.81 :1

5.82 :1

5.83 :1

5.84 :1

5.85 :1

5.86 :1

5.87 :1

5.88 :1

5.89 :1

5.9 :1

5.91 :1

5.92 :1

5.93 :1

5.94 :1

5.95 :1

5.96 :1

5.97 :1

5.98 :1

5.99 :1

6 :1

厘米
英寸
厘米
×
厘米

16 :9

16 :9

16 :10

4 :3

请填写尺寸进行计算

投射比

投射比=投影距离/画面宽度,比值越小,说明相同投影距离,投射画面的宽度越大。普通投影机的投射比,通常在1.5-1.9之间,统称为中长焦镜头;当投射比小于1时,我们通常称之为短焦镜头;而当投射比达到0.4以下,我们通常称之为超短焦镜头。

画面尺寸

家用投影仪可以投射的画面通常在30-300寸,但是最佳的尺寸为80-120寸,因此在安装使用投影仪时,可以根据尺寸选择安装位置。画面太大会让投影画面的亮度降低,影响画面质量,画面太小,画面亮度虽然会提高,但是观看效果就会降低。

投影距离

投影距离=画面尺寸宽度*投影比(也叫放大比、变焦比),这个计算法则通用各种尺寸投影幕布。计算100寸幕布投影距离上,要根据比例的投影机和镜头的放大比来计算。

*16:9比例投影距离=(100寸投影幕布画面尺寸宽度*2.54*0.8746)*投影比

*4:3比例投影距离=(100寸投影幕布画面尺寸宽度*2.54*0.8)*投影比

最佳观看距离

一般家用建议用16:9或16:10的幕,观看距离100寸的话大概3米到5米,120寸4米到6米,眼睛会比较舒服。