Long-range light

Flash or strobe light lets you photograph in dark places without having to increase your camera's ISO setting or use a tripod, as long as the subject is within the range of your light.

有了闪光灯，你就可以不用增加照相机的ISO刻度，或使用三脚架的情况下就可以在暗处拍照，只要拍摄物在闪光灯的有效范围里。

For example, the Model 113 (which did not win any development contracts) was offered as a light or medium cargo-and-troop transport and as a long-range rescue vehicle.

例如，示范113个(其中没有赢得任何开发合同)是作为一个轻型或中型货运和运输部队，并作为一项长期的救援车辆。

Based on characteristics of optical polarizing, Malus law, and Faraday optical rotation, a long-range displacement detector is realized by same light source and double light route.

基于光的偏振特性、马吕斯定理和法拉第旋光效应，采用同光源双光路检测，实现了大量程直线位移的测量。