Lighting device with connection to element electrodes using filler

A lighting device comprising:

• a light emitter comprising:
• a light emitting element having element electrodes;
• a support that supports the light emitting element;
• and
• a light guide member to receive incoming light from the light emitting element and to emit light spreading along a plane;
• and
• a substrate including a base substrate having a film shape, conductors being formed on parts of a first surface of the base substrate, an adhesive member being formed on a second surface of the base substrate, a through-hole penetrating the substrate in a thickness direction of the substrate, wherein
• the substrate is provided on the light emitter via the adhesive member of the substrate such that a surface of the light emitter abuts the through-hole to define a bottomed hole,
• each of the element electrodes is connected to each of the conductors via a filler filling the bottomed hole, and
• the filler has a lower surface than a surface carrying the conductors of the substrate in a cross-sectional view.