Abstract: This lens is provided with: a transparent first substrate; a transparent second substrate provided facing the first substrate in the thickness direction of the first substrate; a first optical characteristic varying portion which is provided between the first substrate and the second substrate, and which has an optical characteristic which is varied by means of electric control; and a second optical characteristic varying portion which is provided between the first substrate and the second substrate, is provided displaced with respect to the first optical characteristic varying portion in the thickness direction, and which has a optical characteristic which is varied by means of electric control.

Abstract: A charge section, for example a terminal metal fitting, pushing screw, metal retainer and terminal plate, is covered by an upper insulation case and a lower insulation case. An opening of the upper insulation case and openings of a lower insulation case in which a connection electric wire that is inserted are sealed, in a condition where an electric wire is not wired, by the superposition of insulation cases or a cover body. As a result, the charge section is prevented from being excessively exposed to protect the charge section from being contacted, regardless of whether the wiring is not yet performed or being performed.

Abstract: A charge section, for example, a terminal metal fitting, pushing screw, metal retainer and terminal plate) is covered by an upper insulation case and a lower insulation case. An opening of the upper insulation case and openings of a lower insulation case in which a connection electric wire that is inserted are sealed, in a condition where an electric wire is not wired, by the superposition of insulation cases or a cover body. As a result, the charge section is prevented from being excessively exposed to protect the charge section from being contacted, regardless of whether the wiring is not yet performed or being performed.