1. A glare sensor for use in a vehicle, comprising: holder means attached on a vehicle; lens means disposed on said holder means for condensing an incident light; means mounted in said holder means for detecting at least one of color and intensity of said incident light condensed by said lens means, said detection means generating a detection signal in response to said detection, wherein said detection means comprises a first detecting elements group and a second detecting elements group, and further comprises blue filters for each of said first detecting elements.