摘要:
The invention relates to a polarization compensating element (PCE) for a liquid crystal, e.g. liquid crystal on silicon (LCoS), display system manufactured using a linearly photo-polymerizable polymer (LPP) for orienting a photo-polymerizable liquid crystal polymer (LCP) film. To decrease the reflection, polarization conversion, and interference events in an LPP/LCP assembly the ΔN birefringence value of the LCP material is minimized. Dielectric coatings are added at various locations throughout the assembly for minimizing the amount of reflection, polarization conversion, and interference effects and for suppressing spatial retardance ripples.
摘要:
A C-plate compensator is disclosed for compensating the residual A-plate and C-plate retardance of a reflective liquid crystal on silicon (LCoS) display or a transmissive liquid crystal (LC) display in a projection display system. The C-plate incorporates a form-birefringent coating, whose retardance magnitude can be adjusted by tilting with respect to the display panel (X-Y) plane. The tilted plate is rotated about the Z-axis by a prescribed amount from the slow axis of the display panel. Criteria are described for choosing the tilt and rotation angles such that the contrast of the display system produced by the compensated panel is optimized.
摘要:
The invention relates to a polarization compensating element (PCE) for a liquid crystal, e.g. liquid crystal on silicon (LCoS), display system manufactured using a linearly photo-polymerizable polymer (LPP) for orienting a photo-polymerizable liquid crystal polymer (LCP) film. To decrease the reflection, polarization conversion, and interference events in an LPP/LCP assembly the ΔN birefringence value of the LCP material is minimized. Dielectric coatings are added at various locations throughout the assembly for minimizing the amount of reflection, polarization conversion, and interference effects and for suppressing spatial retardance ripples.
摘要:
An anti-moisture and soil-repellent coating and a method of preparing the same includes a fluorinated alkyl ether polymer having a functionalized silane that is applied to a non-oxide surface. Advantageously, the instant invention provides a durable anti-moisture and soil-repellant coating for relatively inert surfaces, such as MgF2, without the need for a primer layer.
摘要翻译:防潮和防污涂层及其制备方法包括具有施加到非氧化物表面的官能化硅烷的氟化烷基醚聚合物。 有利地,本发明为不需要底漆层的相对惰性的表面提供耐久和防污染的涂层,例如MgF 2 N 2。
摘要:
This application discusses, among other things, apparatus and methods for improving spurious frequency performance of digital-to-time converters (DTCs). In an example, a method can include receiving a code at selection logic of a digital-to-time converter at a first instant, selecting a first delay path of the DTC to provide a delay associated with the code, associating a second delay path with the code, receiving the code at the selection logic at a second instant, and selecting the second delay path of the DTC to provide the delay associated with the code.
摘要:
A method for bonding two silicon substrates and a corresponding system of two silicon substrates. The method includes: providing first and second silicon substrates; depositing a first bonding layer of pure aluminum or of aluminum-copper having a copper component between 0.1 and 5% on a first bonding surface of the first silicon substrate; depositing a second bonding layer of germanium above the first bonding surface or above a second bonding surface of the second silicon substrate; subsequently joining the first and second silicon substrates, so that the first and the second bonding surfaces lie opposite each other; and implementing a thermal treatment step to form an eutectic bonding layer of aluminum-germanium or containing aluminum-germanium as the main component, between the first silicon substrate and the second silicon substrate, spikes which contain aluminum as a minimum and extend into the first silicon substrate, forming at least on the first bonding surface.
摘要:
A novel type of dye systems comprises a selection of 10H-indolo[1,2-a]indole compounds (henceforth abbreviated as IO compounds) and (5H,7H)-indolo[1,2-a]quinoline compounds (henceforth abbreviated as IQ compounds) showing a solvatochromic effect and exhibiting strong fluorescence in a variety of materials such as polypropylene, polyethylene, oils, various solvents, emulsions. Also disclosed are various methods how the IO/IQ compounds can be administered, especially how they can be produced and administered in situ from a precursor, responding to external stimuli such as enzyme activity, temperature and so forth. The response of a precursor to external stimuli can also be used to determine the presence or absence of such stimuli.
摘要:
A mass spectrometer comprised of a mass analyzer, ion source and detector has the capability of analyzing samples in both positive and negative ionization modes. The mass spectrometer used in conjunction with a liquid chromatograph, fluid splitters and a plurality fluid pathways so that a large volume of analysis may be performed quickly and with high precision and accuracy. The apparatus is also capable of analyzing complex mixtures such as coeluting samples.
摘要:
In a method for the 3D digitalization of an object with variable surface a plurality of camera pictures of partial surfaces of the object (4) are taken and put together for determining the 3D coordinates of the partial surface of the object (4). Camera pictures are taken of partial surfaces of the object (4), which overlap at their edges. For each camera picture the 3D coordinates of the associated partial surface of the object (4) are determined. The 3D coordinates of these partial surfaces of the object (4) are matched and put together by a matching method. Each camera picture is divided into subframes (1.1-1.9, 2.1-2.9, 3.1-3.9) which overlap at their edges and which overlap with the subframes of adjacent camera pictures. To the subframes (1.1-3.9), the associated 3D coordinates from the camera pictures are assigned. The 3D coordinates of the subframes (1.1-3.9) are matched and put together by a matching method. The method can iteratively be carried out several times.
摘要:
The disclosed invention relates to a digital phase locked loop having a switchable digital loop filter configured to selectively operate at different levels of resolution. The digital phase locked loop has a phase frequency detector that determines a phase difference between a reference signal and a feedback signal and to convert the phase difference to a digital word. A digital loop filter filters the digital word to generate a control word. A bit shift network modifies the digital word in a manner that switches the resolution of the digital loop filter between two or more distinct resolution states that comprise a bit sequence located at different positions in the digital word. The two or more distinct resolution states allow the digital loop filter to provide a low resolution (high amplitude) for a settling state of operation and a high resolution (low amplitude) for a locked state of operation.