Lighting element, a lighting system and a luminaire providing a skylight appearance

A lighting system comprising a plurality of lighting elements arranged in an array, each of the lighting elements comprising:

• a white light emitting means for emitting white light;
• a blue light emitting means for emitting blue light;
• and
• a Fresnel lens arranged to receive all the light from the white light emitting means and all the light from the blue light emitting means;
• wherein the white light emitting means is arranged in a first relative position with respect to the Fresnel lens to collimate at least a part of the light emitted by the white light emitting means to obtain a central collimated directed light beam in a specific direction, wherein the specific direction of the central directed collimated light beam of each lighting element is perpendicular to the Fresnel lens, and wherein the first relative position is configured such that the light emitted by the white light emitter means is emitted close to the focal plane or in the focal plane of the Fresnel lens;
• wherein the blue light emitting means is arranged in a second relative position with respect to the Fresnel lens to obtain a wide blue light beam emitted at least outside and at least around the circumference of the central collimated directed light beam, and further wherein the blue light emitting means comprises at least one blue light emitter arranged such that the blue light beam is emitted outside the focal plane of the Fresnel lens, and wherein the second relative position is located in a closer proximity to the Fresnel lens than the first relative position.

A luminaire comprising a lighting element, wherein the lighting element comprises:

• a white light emitting means for emitting white light;
• a blue light emitting means for emitting blue light;
• and
• a Fresnel lens arranged to receive all the light from the white light emitting means and all the light from the blue light emitting means;
• wherein the white light emitting means is arranged in a first relative position with respect to the Fresnel lens to collimate at least a part of the light emitted by the white light emitting means to obtain a central collimated directed light beam in a specific direction perpendicular to the Fresnel lens, and wherein the first relative position is configured such that the light emitted by the white light emitter means is emitted close to the focal plane or in the focal plane of the Fresnel lens;
• wherein the blue light emitting means is arranged in a second relative position with respect to the Fresnel lens to obtain a wide blue light beam emitted at least outside and at least around the circumference of the central collimated directed light beam, and further wherein the blue light emitting means comprises at least one blue light emitter arranged such that the blue light beam is emitted outside the focal plane of the Fresnel lens, and wherein the second relative position is located in a closer proximity to the Fresnel lens than the first relative position.