摘要:
A button mechanism for effecting user inputs to an electronic device. The button mechanism includes a frame top that has a rigid frame portion; and flexible frame portion. The button mechanism further includes a device body that is oriented substantially parallel to the frame top and a button assembly that is situated between the device body and the frame top. The button assembly includes a contact portion that is operable to provide an electronic signal to control circuitry for the electronic device. The button assembly is affixed to an upper portion of the device body. The mechanism further includes a switch attached to the button assembly on the contact portion and a spring portion having a stepwise shape. The spring portion has an upper horizontal step portion and a lower horizontal step portion. The lower horizontal step portion of the spring is affixed to the button assembly. The upper horizontal step portion is disposed above the switch and below the flexible frame portion such that, upon application of a downward pressure to the flexible frame, the upper horizontal step portion is deformed downward to bring the upper horizontal step portion in contact with the switch, causing an electronic signal to be sent to the control circuitry of the electronic device.
摘要:
The invention relates to a method and circuit for aligning a serial bit stream with a parallel output. The method comprises latching Q bits from the serial bit stream into a register, locating a position P of a first bit of a start of frame delimiter (SFD) in the register and discarding P-1 bits from the serial bit stream, before the position of the first bit of the SFD, thereby aligning the serial bit stream with the parallel output. The circuit comprises a latch, a fault tolerant analysis logic (FTAL) for locating a position P of a first bit of a start of frame delimiter (SFD) in the register and a shift register for discarding P-1 bits from the serial bit stream, before the position of the first bit of the SFD, thereby aligning the serial bit stream with the parallel output.
摘要:
In a microscope comprising an objective and an eyepiece, which displays images of an object sensed by the objective, as well as comprising a camera which records the images of the object sensed by the objective, an eyepiece is provided which senses an image generated by a display, said display displaying the image recorded by the camera.
摘要:
Imaging system for a microscope based on extreme ultraviolet (EUV) radiation. The present invention is directed to a reflective imaging system for an x-ray microscope for examining and object in an object plane, wherein the object is illuminated by rays of a wavelength of less than 100 nm, particularly less than 30 nm, and is imaged in a magnified manner in an image plane. In the imaging system, according to the invention, for a microscope based on extreme ultraviolet (EUV) radiation with wavelengths in the range of less than 100 nm, with a magnification of 0.1× to 1000× and a structural length of less than 5 m, at least one of the imaging optical elements 2 and 3 in the beam path has a diffractive-reflective structure which is arranged on a spherical or plane area and has a non-rotationally symmetric, asymmetric shape. The arrangement according to the invention provides an imaging system which avoids the disadvantages of the prior art and ensures a high imaging quality. The manufacturing cost remains reasonable due to the exclusive use of spherical mirrors.
摘要:
A process is disclosed for preparing a polyacrylate-modified polyvinyl chloride processing aid for polyvinyl chloride by sequentially polymerizing the vinyl chloride and the desired acrylate ester monomer. Thus, a conventional vinyl chloride suspension polymerization is conducted at a controlled rate of agitation and in the presence of a specified concentration of suspending agent and is then halted at or near its completion; unreacted vinyl chloride monomer is removed, a minor proportion of an acrylate ester monomer, e.g., methyl methacrylate, which has been pre-mixed with a fresh supply of a free radical initiating catalyst is added and polymerization is resumed and continued until the acrylate ester monomer polymerizes in and/or on the particles of the previously polymerized polyvinyl chloride. The polyacrylate-modified PVC thereby recovered is an effective aid for processing conventional PVC, or it can be processed per se since it is suitable for calendering or extruding.