| 摘要 |
<p>A semiconductor light source containing a semiconductor substrate 4 having a plurality of light emitting diodes 2 formed thereon which are electrically interconnected with connecting leads 8 such that each of the LED's 2 is separably operable to emit light. The light source comprises a transparent housing 6 incorporating a fresnel lens 10 so that the light emitted from the housing 6 is generally in the same direction and of the same intensity for light emitted from each of the LED's 2. A control circuit may be coupled to the connecting leads 8 of the light source and arranged to supply current to the LED's 2 to cause light to be emitted in a predetermined sequence with a predetermined duration of illumination for each diode 2, such that the light source appears to provide generally continuous light output of a generally constant intensity.</p> |
