| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently collect light by collecting light emitted from an LED chip without waste. <P>SOLUTION: In this light source comprising an LED chip, a lens and a lens holder, the size of a first lens including the LED chip is set to 2.25-2.5 times of the size of the LED chip by combining three or four lenses each having a magnification of 1.25-1.38 with the LED chip, whereby collection efficiency is further improved, light emitted from the LED chip can be collected without waste, and the light can be efficiently collected. <P>COPYRIGHT: (C)2011,JPO&INPIT |
