| 摘要 |
The invention provides a light source ( 1, 200 ), especially a portable light source ( 1, 200 ) used to illuminate a medical or precision mechanical working area, with a casing ( 2 ), with a light diode ( 4 ) held by the casing ( 2 ), with a primary focusing lens ( 6, 6 a) held by the casing ( 2 ) in the direction of emissions ( 2 a) from the light emitting diode ( 4 ), with a secondary focusing lens ( 8 ) held by the casing ( 2 ) positioned behind the primary focusing lens ( 6, 6 a) in the direction of emissions ( 2 a) from the light emitting diode ( 4 ), and that has a largely cylindrical recess ( 10 ), with the characteristic that a floor ( 12 ) of the recess ( 10 ) facing the primary focusing lens ( 6, 6 a) is curved in the direction of the primary focusing lens ( 6, 6 a).
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