Tubular lighting device and luminaire

A tubular lighting device comprising:

• an elongated tubular member with an elongated light exit window extending between a first end and a second end of the elongated tubular member;
• a first end cap positioned at the first end of the elongated tubular member and a second end cap positioned at the second end of the elongated tubular member;
• an elongated substrate arranged inside the elongated tubular member;
• and
• a plurality of LEDs mechanically coupled to the elongated substrate and configured to emit light,
• wherein the elongated light exit window has a central area and two peripheral areas, each peripheral area being arranged between the central area and a respective end of the elongated tubular member, and
• wherein the tubular lighting device is configured so that light exiting from the central area has a maximum intensity in a main illumination direction (I) of the tubular lighting device and so that light exiting from each peripheral area has a maximum intensity in a direction which is inclined away from the main illumination direction (I) and towards the closest end cap.