Patent ID: 8579473

Claim:
A luminaire for indirect illumination, the luminaire comprising: shielding means extending in a plane P and adapted to shield contacting means for holding a light source from being directly viewed by an observer through a light exit window, the shielding means having a first end opposite a second end, the first end bordering a concavely shaped reflective screen and the second end bordering the light exit window, the reflective screen being arranged opposite the light exit window and comprising a specularly reflective part and a diffusely reflective part, a first edge of the diffusely reflective part bordering the light exit window and a second edge bordering a first extremity of the specularly reflective part, a second extremity of the specularly reflective part of the reflective screen bordering the shielding means, said contact means being positioned between the shielding means and the specularly reflective part of the reflective screen, wherein, viewed in a cross-section perpendicular to plane P and through both the first and the second end of the shielding means, the tangent to the first extremity of the specularly reflective part encloses an angle α′ of more than 25° with the plane P, wherein the shielding part has a reflective surface facing the specularly reflective part.