Abstract: A method for lithographic patterning of an insulating or semiconducting solid state material in crystalline form, said method comprising a step where said material is exposed to an amount of radiation which is sufficient to change its insulating or semiconducting state into a conducting state.

Abstract: The invention proposes a lamellar wood panel (1) comprising stacked, flatly superposed wood layers (3) cemented to each other at pairwise adjacent large faces (15), part of the wood layers (3) having mutually transverse fiber direction, part of the large surfaces (15) being fitted with a plurality of slots whereby the slots of the adjacent large surfaces (15) are mutually crossing, at least in part, pairwise adjacent wood layers (3) having mutually transverse fiber directions.The invention also proposes a method for manufacturing a lamellar wood panel (1) in which wood layers (3) are stacked together and cemented to each other, at least part of the wood layers (3) with mutually transverse fiber directions being stacked, slots being fitted in part of the wood-layer large surfaces (15), the wood layers (3) being stacked, and the wood stack being moved into a tightly sealable enclosure which is evacuated during at least part of the cement setting period.

Abstract: Described is a luminescent semiconductor element having the following structure: a first thick connecting semiconductor layer of uniform material composition, a thin over-graded layer arranged on the first semiconductor layer and comprising connecting semiconductor material whose composition has a linear gradient, a further connecting semiconductor layer arranged on the over-graded layer and having uniform material composition that determines the wavelength of the radiation emitted by the luminescent semiconductor element, an active layer arranged in the surface area of the further semiconductor layer and having a conductivity opposite to that of the further semiconductor layer in order to form a p-n junction, a rear contact arranged on the first connecting semiconductor layer, and a front contact arranged on the surface of the active layer.

Abstract: A microscope comprising a base portion (13), a cross member (15) and a vertical portion (14) connecting the base portion and cross member, at least one lamp (LA) for microscope illumination being arranged within the vertical portion, a slide adapted to be shifted in and out of the vertical portion from above in a substantially vertical direction holding at least one lamp. The slide is made of a material exhibiting good heat conducting properties and is formed with longitudinal ribs. The slide is arranged in a cavity extending in a substantially vertical direction and thermally insulated from the walls defining the cavity.

Abstract: In a drill chuck for securing the shank of a tool in a hand-held device, clamping jaws are mounted in a chuck member and bear radially outwardly against the conically shaped surface in a first sleeve into which the tool shank is inserted. A second sleeve is connected to the first sleeve and is threaded engagement with the chuck member. A locking or third sleeve is located about the first and second sleeves. The third sleeve is axially displaceable between a first position and a second position. In the first position the third sleeve engages the first and second sleeves so that the second sleeve cannot be rotated relative to the first sleeve or the chuck member and the tool shank can be locked by the clamping jaws. When the third sleeve is displaced into the second position, the second sleeve is released and can be rotated relative to the chuck member for axially displacing the first sleeve relative to the chuck member and adjusting the radial position of the clamping jaws.

Abstract: A photocopying machine developing apparatus is described in which an adjustable doctor blade is disposed adjacent a shell surrounding a magnetic roller. The doctor blade is guided in a U-shaped slideway with respect to the shell and is displaceable in the radial direction by contact with adjusting screws. The doctor blade is pressed against the adjusting screws by tension springs.

Abstract: A process for developing a latent charge image on a repeatedly usable charge image carrier and for cleaning the carrier after transfer of the developed charge image by means of a single magnetic brush having a layer of magnetic one-component toner and a thickening of the layer of toner in the region of contact of the magnetic brush with the charge image carrier.