Abstract: Disclosed is a headlamp LED lighting device including: a box 10 for accommodating a circuit board on which a circuit for lighting LEDs 130 is mounted, the box being fitted into and mounted to a rear opening 110b of a headlamp case 110; a first connector 40 which is disposed on a side of the box 10 fitted into and mounted to the rear opening 110b, the side facing towards an inside of the headlamp case 110, for connecting to the circuit board, and which is connected to the LEDs 130, for supplying electric power to the LEDs; and a second connector 50 disposed on another side of the box 10 fitted into and mounted to the rear opening 110b, for connecting to the circuit board and for supplying electric power to the circuit board, the other side facing towards an outside of the headlamp case 110.

Abstract: Disclosed is a headlamp LED lighting device including: a box 10 for accommodating a circuit board on which a circuit for lighting LEDs 130 is mounted, the box being fitted into and mounted to a rear opening 110b of a headlamp case 110; a first connector 40 which is disposed on a side of the box 10 fitted into and mounted to the rear opening 110b, the side facing towards an inside of the headlamp case 110, for connecting to the circuit board, and which is connected to the LEDs 130, for supplying electric power to the LEDs; and a second connector 50 disposed on another side of the box 10 fitted into and mounted to the rear opening 110b, for connecting to the circuit board and for supplying electric power to the circuit board, the other side facing towards an outside of the headlamp case 110.

Abstract: A high-voltage generating transformer for a discharge lamp lighting apparatus according to the present invention includes a rodlike core; a secondary winding bobbin that is divided into a plurality of sections, and where the core is disposed in the central portion thereof; a secondary winding part wound on the secondary winding bobbin, divided between the plurality of sections of the bobbin; a primary winding bobbin disposed around the outer periphery of the secondary winding part; and a primary winding part wound on the primary winding bobbin; wherein the primary winding bobbin is changed in thickness every section or every plurality of sections of the second winding part such that the bobbin has a thickened thickness on the side where the potential difference between the primary winding part and the secondary winding part is high, and the bobbin has a thinned thickness on the side where the potential difference is low.

Abstract: A high-voltage generating transformer for a discharge lamp lighting apparatus according to the present invention includes a rodlike core; a secondary winding bobbin that is divided into a plurality of sections, and where the core is disposed in the central portion thereof; a secondary winding part wound on the secondary winding bobbin, divided between the plurality of sections of the bobbin; a primary winding bobbin disposed around the outer periphery of the secondary winding part; and a primary winding part wound on the primary winding bobbin; wherein the primary winding bobbin is changed in thickness every section or every plurality of sections of the second winding part such that the bobbin has a thickened thickness on the side where the potential difference between the primary winding part and the secondary winding part is high, and the bobbin has a thinned thickness on the side where the potential difference is low.