| 摘要 |
A light source. The light source may comprise a substrate comprising at least one flexible portion; an illumination source mounted on the flexible portion; and a structural unit positioned relative to the flexible portion to determine a deflection angle of the flexible portion. An illumination angle of the light source may be dependent on the deflection angle of the flexible portion. Instruments including the light source are also disclosed, along with a method of changing the illumination angle of the light source. The method may comprise the steps of removing the structural unit and replacing the structural unit with a second structural unit positioned relative to the flexible portion to deflect the flexible portion by a second deflection angle.
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