This sphere serves as a diffuse light source, which enables measurements of the hemispherical reflectance, or the directional absorptance, respectively.

这个球作为扩散光源，使测量的半球形或定向吸收率的反射系数，分别使用。

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Apply the "Fisheye Lens" to get a wide-angle hemispherical view of the photographic subjects, adding a new source of fun and intriguing creative possibilities to photos.

ENGADGET: BenQ's 14 megapixel S1420 camera touts mega O.I.S., 720p movie mode