Lighting unit having a plurality of curved surface elements

Lighting unit comprising:

• at least one light source;
• at least one light guide following and at least regionally surrounding the source, said light guide including at least one light exit surface facing away from the source, and centrally located at least approximately surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements Cartesianally arranged and adjoining each other with or without offset, and said surface elements are surface regions of curved solids.

Lighting unit comprising:

• at least one light source;
• at least one light guide following and at least regionally surrounding the source, said light guide including at least one light exit surface facing away from the source, and centrally located at least approximately surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements adjoining each other with or without offset, and said surface elements are like surface regions of identical curved solids.

Lighting unit comprising:

• at least one light source;
• at least one light guide following and at least regionally surrounding the source, said light guide including at least one light exit surface facing away from the source, and centrally located at least approximately surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements adjoining each other with or without offset, and said surface elements are surface regions of curved solids.

Lighting unit comprising:

• at least one light source;
• at least one light guide following and at least regionally surrounding the source, said light guide including at least one light exit surface facing away from the source and centrally located at least approximately and includes at least one optical lens, surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements adjoining each other with or without offset, and said surface elements are surface regions of curved solids.

Lighting unit comprising:

• at least one light source;
• at least one light guide following and at least regionally surrounding the source, said light guide including at least one light exit surface facing away from the source, and centrally located at least approximately, surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements adjoining each other with or without offset, and said surface elements are surface regions of curved solids, wherein said light guide includes an envelope which is rotationally symmetrical with respect to the optical axis and a diameter of a central light-emitting surface of said light guide is 40 percent of the diameter of the light guide.

Lighting unit comprising:

• at least one tight source;
• at least one light guide following and at least regionally surrounding the source, said light guide including a truncated paraboloid, at least one light exit surface facing away from the source, and centrally located at least approximately surrounded by at least one externally located light exit surface, wherein said at least one externally located light exit surface comprises a plurality of surface elements adjoining each other with or without offset, and said surface elements are surface regions of curved solids.