摘要:
A process for coating an exterior of a lamp is disclosed, which comprises performing the coating in a microwave reactor by a microwave plasma CVD process and coupling microwave radiation into the microwave reactor with a microwave power greater than or equal to a power threshold value at which a plasma with reduced microwave permeability is ignited in the microwave reactor.
摘要:
An optical waveguide is disclosed with a substantially planar substrate and a waveguide layer applied to the substrate. The invention resides in that the substrate consists of a synthetic resin or of a material having a high organic proportion. This has the advantage that the high index of refraction of the inorganic waveguide layer is combined with the material properties of the synthetic resin substrate, such as, for example, breaking resistance, plastic and thermoplastic moldability, photochemical structuring ability, and others.
摘要:
A PCVD process for producing coating layers of uniform thickness of domed substrates. The substrate surface to be coated is arranged in relation to the gas passage surface of a gas showerhead. In order to determine the appropriate processing parameters, in a first series of tests for one type of substrate to be coated, the size of the gas passage surfaces and the gas mass flows through the gas passage surfaces are kept constant, while the intervals between plasma impulses are gradually modified, from an initial value t.sub.A until an optimum value t.sub.eff is determined, and until the uniformity of the thickness profile of the layers generated on the substrate may no longer be improved. If required, during a second series of tests, the value t.sub.eff may be kept constant, while the thickness profile of the layers is further modified by further optimizing the local parameters and/or the gas mass flows until layer uniformity may no longer be improved. The device includes a gas showerhead subdivided into zones and having gas passage surfaces arranged depending on the substrate being coated. The zones are connected by supply lines to a source of non film-forming gas and to a gas source that supplies fresh gas.
摘要:
The invention relates to a plasma CVD method for producing a gradient layer wherein the layer gradient is produced in the direction of layer growth by changing at least one plasma power parameter during the coating process. According to the invention, thin gradient layers are generated with high precision by supplying the plasma power in a pulsed manner and adjusting the layer gradient by changing the plasma power parameters of pulse amplitude, pulse duration and/or pulse interval.
摘要:
An optical waveguide is disclosed with a substantially planar substrate and a waveguide layer applied to the substrate. The invention resides in that the substrate consists of a synthetic resin or of a material having a high organic proportion. This has the advantage that the high index of refraction of the inorganic waveguide layer is combined with the material properties of the synthetic resin substrate, such as, for example, breaking resistance, plastic and thermoplastic moldability, photochemical structuring ability, and others.
摘要:
Numerous applications for hollow glass bodies made from low melting glass material require an increase in the chemical resistance of the interior surface of the glass body. In order to avoid a disadvantageous de-alkalizing process the hollow glass body must be provided with an interior coating in a comparatively expensive prior art process. In an improved process according to the invention a glass tube acting as a semifinished product from which the hollow glass body is made is provided with an interior coating of oxide material, preferably SiO2, Al2O3, TiO2 or mixtures thereof, having a predetermined coating thickness according to the required chemical resistance or working conditions for forming the glass body and then the hollow glass body is made from the glass tube. The coating is advantageously provided by means of a PICVD process.
摘要翻译:由低熔点玻璃材料制成的中空玻璃体的许多应用需要增加玻璃体的内表面的耐化学性。 为了避免不利的去碱化过程,中空玻璃体必须在比较昂贵的现有技术方法中提供内部涂层。 在根据本发明的改进方法中,用作中空玻璃体制成的半成品的玻璃管设置有氧化物材料(优选SiO 2,Al 2 O 3,TiO 2或其混合物)的内部涂层,其具有预定的涂层厚度,根据 达到用于形成玻璃体的所需的耐化学性或工作条件,然后中空玻璃体由玻璃管制成。 该涂层有利地通过PICVD工艺提供。
摘要:
The invention relates to a process for determing lumnescence with a planar dielectric optical sensor platform which consists of a transparent substrate to which a thin transparent waveguiding layer is applied, which sensor platform is provided with a coupling grating for the input-coupling of the excitation light and the refractive index of the substrate is lower than the refractive index of the waveguiding layer, by briging a liquid sample as superstrate into contact with the layer, and measuring the luminescence produced by substances having luminescence properties in the sample, or by substances having luminescence properties immobilized on the layer, optoelectronically. The invention also relates to the use of the process in quantitative affinity sensing and to the use thereof for the quantitative determination of luminescent constituents in optically turbid solutions, and to sensor platform for carrying out the process.
摘要:
A method for manufacturing a thin film solar cell device including a CIGS based thin film solar cell module (17). Edge deletion by selective removal of a multilayer structure (13) that includes at least a front contact (15) and a CIGS layer (7) to expose the back contact (5) in at least a peripheral area (22) in the circumferential region (21) of the module (17) adjacent to a first longitudinal thin film solar cell segment (18) allows for contacting of the module (17) by attaching at least a first contacting element (27) to the back contact (5). Preferably a blasting operation using simultaneous supply of blasting agents and gathering of debris in a blasting chamber (32) arranged on the thin film solar cell module (17) is used for the selective removal.
摘要:
A display screen for a cathode ray tube has an adjustable transmission curve in the visible spectral range of (.lambda.) between 380 to 780 nm. The display screen includes: a glass containing an oxide compound and being recyclable by melting under oxidizing conditions and without changing its characteristics and its color; the display screen having a transmission between 70% and 90% and at least one coating applied to the glass; the coating including the oxide compound; and/or, the coating including a component which forms an oxide compound in a melt of coated display screens which oxide component is likewise contained in the glass; and/or, the coating further including TiQ.sub.2 ; and/or, the coating further including titanium or compounds of titanium from which TiO.sub.2 is formed when the display screen is melted; and/or, the coating forming volatile compounds in the melt which escape from the melt in gaseous form when compounds forming in the melt contain components other than titanium oxide or the glass of the display screen.
摘要:
A process for coating the inner surface of a greatly arched, essentially dome-shaped substrate by CVD is described wherein reaction gases, which contain layer-former molecules, are conveyed into a reaction chamber containing the substrate(s) to be coated. The reaction gases are conveyed through at least one gas inlet, placed facing the vertex of the dome at a distance from the surface to be coated. Deposition of the layer material on the substrate is brought about by producing a reaction zone on the inner surface of the substrate to be coated. The reaction gases do not, as is usual for known processes, flow slowly into the reaction chamber. Instead, for production of a uniform coating, the reaction gases are introduced at a high speed such that the product of Reynolds number, R, of the gas jet in or in the immediate vicinity of the gas inlet and the distance, h, between the gas inlet and the dome vertex is 400