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1·Projection lamp is helpful for exact location.

投射灯可获得最准确定型位置。

2·2 projecting heads for table cinematographs, 1 optical sound head, 1 carbon arc projection lamp, 1 slide projector and more. All untested.

2个放映机头，用于桌式电影摄影机，1个电子光声头，1台煤油弧光灯，1个滑线电阻，1台幻灯机，1个印片机箱，1个暗房照明灯(煤油)，均未检测。

3·Therefore, LED can take place of conventional arc lamp to satisfy the colorimetric requirement of the projection display.

因此led可以替代传统的弧光灯光源以满足投影显示的色度特性要求。

4·Light pollution such as glare, stroboflash, glisten, rays shade, projection and so on, which caused by fluorescent lamp, can injure eyes seriously;

日光灯源所产生的眩光、频闪、反光、光帘、投影等光污染现象，严重损害眼睛；

5·The invention relates to a projection-type head lamp capable of reinforcing light in a dark space, which comprises a lamp holder, an illuminating part, a shading plate and a light guide plate.

一种可补强暗区光线的投射式头灯，包含：一灯座、一发光件、一遮光板， 以及一导光板。