The invention relates to a method of determining at least one eco-driving indicator wherein at least a first indicator is determined as an optimal speed that minimizes the energy consumption. The apparatus for providing UHDTV service sets up a type of the UHDTV service as a first type of HDTV service and a second type different from that of the HDTV service in an environment of the UHDTV service and the HDTV service coexist. Also added is a safety grip ring near the upper end of the handle. The reflected light rays that are collected at the aperture are in turn transmitted at high power and uniform luminescence to illuminate a document for scanning.