Disclosed is a scanning exposure apparatus in which laser light from an excimer laser is used and in which a reticle is illuminated by an illumination optical system with use of slit-like light. The invention also relates to an article comprising said organic light emitting device, and a method for preparing said device. The illumination means and the collector means are adapted to collect light depth-resolved, and the determination means is adapted to determine depth-resolved properties of the tissue from the light, which has been collected depth-resolved. The molded lamp socket also includes a mounting body molded from a second plastic material providing a plug cavity encircling the second contact portion. A substantially flat floatation area is disposed on a bottom surface of the base on an opposite side of the dominant keel from the outrigger keel. Afterwards, the values nH*p and also at least one adjacent value *p andor *p are looked up in the table.