Lighting device, a lamp and a luminaire

Abstract

A lighting device 100, a lamp and a luminaire is provided. The light device 100 emits a first color distribution predominantly in a first direction and a second color distribution predominantly in a second direction. The lighting device comprises a light exit window, a light source 118, a light distributing layer 108, and a luminescent material. Light 104, 106 is emitted into the ambient of the lighting device through the light exit window. The light exit window has a first part 110 for an escape of light of the first color distribution and a second part 102 for an escape of light of the second color distribution. The second part 102 is different from the first part 110. The light source emits light of a predefined color distribution. The predefined color distribution comprises light of a first color 106. The light distributing layer 108 partly reflects or backscatters impinging light and partly transmits impinging light. The light distributing layer 108 is arranged in between the light source 118 and the second part 102 of the light exit window. The light distributing layer 108 is not fully transparent and has an edge near the light exit window for separating the first part 110 and the second part 102. The luminescent material converts light of the first color 106 to light of a second color 104. The luminescent material is arranged in the light distributing layer 108, is arranged in between the light distributing layer 108 and the second part 102 of the light exit window, or is arranged at the first part 110 of the light exit window or the second part 102 of the light exit window.

Dependencies are inferred from the claim text.