Illuminating device and lighting unit

An illuminating device,

• comprising a planar, elongate lighting unit;
• and
• comprising a profile-shaped carrier component;
• wherein the lighting unit is constructed for fixing thereof to the carrier component;
• wherein the lighting unit comprises a profile element which is permeable to light in at least some portions and has a cross-sectional shape which is U-shaped in at least some portions, opposing limbs of the U-shaped cross-sectional shape extend substantially in the thickness direction of the lighting unit, and an inner region of the profile element is formed with an opening formed between the limbs by the U-shaped cross-sectional shape;
• wherein the lighting unit further comprises a planar base part which is arranged in the region of the opening and is coupled to the profile element;
• wherein the profile element which is permeable to light in at least some portions is formed by a first material which offers less resistance to a deformation than a second material by which the planar base part is formed;
• and
• wherein, in the inner region, a light-generation device for generating light which can be emitted in operation by the lighting unit is arranged.