摘要:
For picture elements (pixels) having a luminance value in a mid-range of luminance magnitude and a color saturation smaller than a predetermined threshold value a correction signal is obtained by integration of the color saturation value followed by multiplication by the difference between an actual luminance signal and a gradation distorted luminance signal. Threshold values at the boundaries of the mid-range of the luminance signal are determined in a manner dependent upon the extreme values that appear from time to time in the luminance signal. The stored maximum and minimum values of the luminance signals are respectively decremented and incremented at frame intervals until replaced by a new maximum or minimum value establishing a new maximum or minimum.
摘要:
A watch movement having a frame comprising a bottom plate with a peripheral rim portion, a dial secured to said rim portion, and a holding plate disposed between the bottom plate and the dial is described, wherein the holding plate is made of a thin sheet of material and includes one or more positioning elements cooperating with the bottom plate and one or more raised support tongues cooperating with the dial.
摘要:
A closing body is mounted in an axially displaceable manner in a bore of a fluidic valve to control a pressure medium flowing via the valve. The closing body has a sealing section, interacting with a seating edge of valve, and a guide section which serves to guide the valve cone in the bore. The guide section is provided with recesses which allow an overflow of pressure medium between the two sides of the closing body. To reduce costs of production, the guide section of the closing body is of cylindrical form and its surface is provided with at least one helical groove which leads from one side of the guide section to its other side. The closing body is useful in particular in constant pressure valves for controlling fluid pressure medium. The sealing section of the closing body is normally of conical form.
摘要:
A cylindrical bearing segment of a preferably metal sleeve is positioned within a hole in a watch-movement plate. A portion of the sleeve intended to project inwardly beyond the plate is divided by a lengthwise slot into two claws which yield so that the sleeve can be inserted in the hole by simple axial pressure. When the dial is to be fitted in place, a dial-foot is inserted in the sleeve, pushing the claws apart by pressing against inner bulges at the ends of the claws, these bulges then pressing laterally against the dial-foot and locking it firmly in place.
摘要:
The present invention relates to the use of composites or compositions of diamond/non-diamond material, e.g. diamond/non-diamond carbon material for chemical or biological analysis. The invention further relates to the use of this material in separation adherence and detection of chemical of biological samples. Applications of either structurized substrates or mixed phase particles of this material include but are not limited to processes which involve desorption-ionization of a sample, more specifically mass spectroscopy.
摘要:
In an electronic device comprising a protective barrier layer stack comprising a first barrier layer of a first amorphous carbon modification and a second barrier layer of a second amorphous carbon modification, the protective barrier layer stack has higher densities, better adhesion, and more flexibility than a single barrier layer of comparable thickness and composition.
摘要:
A device for adjusting rotation angles, e.g. an electrical rotary switch (1), has a stator (2) and a rotator (3) mounted on the stator (2). The rotator (3) rotates between at least two rotational angle positions. The device has a magnet (4), e.g. a permanent magnet, which can be moved by the rotor (3), and a magnet field sensor (5), e.g. a Hall sensor, which together with the magnet (4) produces a signal which corresponds to the rotational angle position. The stator (2) has a receptacle (8) open on one side and shaped like a pot, with the receptacle (8) forming a rotating bearing for the rotator (3). The magnetic field sensor (5) is arranged in the receptacle (8) on the stator (2) and/or on a part which is mounted on the stator (2), such that the stator is a mount for the magnet field sensor (5).
摘要:
The invention relates to an antifriction body (3), in particular for a magnetic head (1), whose antifriction surface (4) is provided with an antifriction layer (4) which contains diamond crystals and which is provided by means of a CVD process. Damage to the elements sliding past the antifriction layer is precluded in that the antifriction layer (4) contains hexagonal lonsdaleite crystals.
摘要:
A timepiece display mechanism having an indicator member on which are formed a series of indicating marks which overlap each other; some of the marks forming different indications are intermingled. The marks are viewed through an aperture which comprises a series of openings distributed along an outline corresponding to a superposition of all the indications; this outline is situated within an angle which has its apex at the center of the indicator member and is greater than an angle obtained by dividing 360.degree. by the total number of indications.
摘要:
An optical signal processing device equipped with a source of electromagnetic radiation of variable intensity, a non-linear optical component, which comprises at least one photoluminescent carbon nanotube, and with a means of detecting electromagnetic radiation utilizes the non-linearity of the photoluminescence of carbon nanotubes for optical signal processing. The invention also relates to a non-linear optical component.