Illumination apparatus having interconnectable light emitting parts

1. An illumination apparatus comprising:

a plurality of light emitting parts, each of the light emitting parts having a shape extending in a longitudinal direction, a thickness direction, and a width direction, with each of the directions being perpendicular to one another; and

a connection part linearly connecting the plurality of light emitting parts,

wherein each of the light emitting parts includes:

a first face extending in the longitudinal direction and the width direction and includes a light emission surface configured to emit light; and

a second face extending in the longitudinal direction and the width direction and facing the first face in the thickness direction, the second face including an attachment surface, and

wherein the connection part includes:

a first connector fixed to one end of one of the light emitting parts in the longitudinal direction thereof;

a second connector fixed to the other end of an adjacent one of the light emitting parts in the longitudinal direction and connected to the first connector of the one of the light emitting parts; and

a mechanical connection part and an electric connection part of mechanically and electrically connecting the first connector of the one of the light emitting parts and the second connector of the adjacent one of the light emitting parts by relatively moving the first connector and the second connector in the thickness direction of the light emitting part.

2. The illumination apparatus according to claim 1 ,

wherein the mechanical connection part has a concave-convex structure extending in the thickness direction of the light emitting part, and

wherein in the concave-convex structure, a structure of the first connector and a structure of the second connector are complementary to each other.

3. The illumination apparatus according to claim 1 ,

wherein the electric connection part includes:

a conductor pattern provided on the first connector; and

a spring-type terminal provided on the second connector and configured to contact the conductor pattern, and

wherein the conductor pattern and the spring-type terminal are provided to extend in the thickness direction of the light emitting part.

4. The illumination apparatus according to claim 3 ,

wherein the concave-convex structure is formed along the longitudinal direction of the light emitting part and is provided at a plurality of positions in a direction perpendicular to the longitudinal direction and the thickness direction of the light emitting part.

5. The illumination apparatus according to claim 4 ,

wherein the concave-convex structure is provided at both sides of the spring-type terminal in the direction perpendicular to the longitudinal direction and the thickness direction of the light emitting part.

6. The illumination apparatus according to claim 1 ,

wherein each of the first and second connectors is formed with an attaching hole which penetrates in the thickness direction of the light emitting part and in which a screw is inserted.

7. The illumination apparatus according to claim 1 ,

wherein the light emitting parts and the connection part have a substantially same outer shape in a cross-section perpendicular to the longitudinal direction of the light emitting part.

8. The illumination apparatus according to claim 1 ,

wherein each of the light emitting parts includes:

a point light source; and

a frame configured to reflect a part of light emitted from the point light source to be emitted from the light emission surface.