Achieving softer light requires making the apparent size of the light source bigger.
柔和的光需要获得明显的大小使光源的大。
The size of your light source, relative to your subject, affects the overall look of the picture.
光源与被摄体的相对大小，决定了照片的整体效果。
The effects of shape, size and orientation of polarized light source on light transmission ratio of an air-spaced analyzer are studied.
探讨了单色线偏振光源的形状、尺寸和取向对检偏棱镜光强透射比的影响。
Therefore, a suitable size of extended light source can be chosen, considering the requirement of SNR in the optical design.
因此，需要在设计中结合系统信噪比的要求，选取合适尺寸的扩展光源。
At present, LED is widely used in the small and medium size backlight. The light source of large size TV backlight is also changing from CCFL to LED.
现阶段，LED被广泛地应用到中小尺寸背光源中，大尺寸TV背光源也由原来的CCFL向LED转变。
The radiance will reduce if the size of extended light source is shortened.
减小光源尺寸会降低系统的光通量。
The radiance will reduce if the size of extended light source is shortened.
减小光源尺寸会降低系统的光通量。
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