| 摘要 |
FIELD: physics. ^ SUBSTANCE: disclosed is a lamp in which a light-emitting diode (LED) is used as a light source. The lamp has a frame and a LED holder mounted on the frame. A primary reflector, having a primary reflecting surface for reflecting at least part of light emitted by the LED and mounted on the frame, lies on the path of light emitted by the LED. A secondary reflector, which is also mounted on the frame, lies relative the primary reflector such that light reflected by the primary reflector is reflected towards the secondary reflector. The secondary reflector has at least one secondary reflecting surface whose shape is selected such that light is reflected therefrom in the frontal direction of the lamp and said light is focused mainly into a focused beam. A method of focusing light emitted by a LED is also disclosed. ^ EFFECT: wider range of equipment. ^ 9 cl, 6 dwg |
