Abstract: A color photo sensing structure, includes an array of multiple color photo sensing elements. The photo sensing structure includes a first pixel located laterally with respect to a second pixel in a substrate of a first conductivity. The first pixel includes a first doped region of a second conductivity formed in the substrate and a second doped region of a first conductivity formed in the substrate above the first doped region. The second pixel includes two doped regions formed in the substrate having a first conductivity and a second conductivity, respectively. The color photo sensing structure further includes a controller for sequentially providing a first photocurrent value of the first doped region, a second photocurrent value of both the first and second doped regions and a third photocurrent value of the two doped regions of the second pixel.

Abstract: A screw holder mountable on a drive unit having a tubular passage with two axially-aligned sections, each provided with locking and centering elements, such that a screw inserted into such holder can initially only penetrate until the screw head is reliably held and suspended in the first section by the locking elements. The force of the centering and locking elements upon the screw head is overcome when the apparatus is placed on the screw location and an engagement tool coupled to a drive shaft is brought into driving engagement with the screw head, which driving movement forces the locking elements radially outward in response to the axial load upon the screw head and the passage of the screw head therethrough. After the screw head passes through the first section within the tubular passage, the screw shaft is engaged by the centering elements of the second section. The centering elements of the second section are then also forced back as the head of the screw passes therethrough.

Abstract: A tapping screw includes a screw head, a self-tapping thread portion and a drilling point. The drilling point has a pair of approximately axially extending flutes which are located diametrically opposite each other relative to the shank axis and include clearing surfaces and cutting surfaces. The cutting surfaces end in cutting edges facing the point of the screw and lateral outer knives. Immediately adjacent the cutting edges or cutting knives, the cutting surfaces have a convexly arched cross-sectional shape.