Patent ID: 8979319
Filing Date: 2015-03-17
Classification: F21S,F21V,F21Y

Abstract:
1. A luminaire for indirect illumination, the luminaire having a light exit window and comprising: a light source; contacting means for holding the light source shielding means extending in a plane P for shielding contacting means from being directly viewed by an observer through the 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, viewed in a cross-section perpendicular to the plane P and through both the first and the second end of the shielding means, the tangent to the second extremity of the specularly reflective part encloses an angle α of more than 90° with the plane P.