The optical design of a semi-spherical screen fish-eye objective with field angle 180 degrees has been studied.

本文讨论了视场等于180度的球幕鱼眼镜头的光学设计问题。

youdao

As you watch the programme projected on the large spherical screen, you will realise that our planet is facing many threats and the system as a whole is very fragile.

从投影在大型球幕上的节目中，你会明白到地球正面临着种种威胁，而整个系统亦已变得非常脆弱。

youdao

Samsung is attempting the latter with its S2, a spherical, screen-less player nicknamed Pebble.

FORBES: IPod Battles Rage On

To maintain an accurate image, the XV-Z15000 includes Keystone Correction, which corrects spherical, cylindrical and trapezoidal distortion of an image on a flat screen.

ENGADGET: Sharp shows off the XV-Z15000 1080p projector