摘要:
A process of hard anodizing or Type III anodizing an aluminum article creates a heat stable, hard anodized, color surface on the exterior of the article. The process includes anodizing the aluminum article to achieve a hard anodized base layer on a surface of the article. A copper layer is deposited after the exterior is hard anodized. A tin layer is deposited after the step of depositing the copper layer.
摘要:
A novel and improved composite thick film dielectric structure is provided to improve the operating stability of phosphors used in thick dielectric ac electroluminescent displays. The novel structure comprises one or more aluminum oxide layers disposed between the composite thick dielectric layer and the bottom of the phosphor layer of these displays.
摘要:
A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation selected from elements of Groups IIA and IIB of the Periodic Table of Elements. The phosphor being activated by a rare earth metal and containing oxygen as a partial substitute for a portion of the sulphur in the crystal lattice of the thiogallate, thioindate or thioaluminate. The phosphor is a single phase homogeneous compound and provides improved luminance stability. An electroluminescent device comprising the thin film phosphor is also described and methods of making the phosphor of the invention.
摘要:
The present invention provides thioaluminate phosphor compounds BaAl2S4 and BaAl4S7 with novel crystal structures that have higher luminosity and improved color coordinates. The invention is also directed to rare earth element activated barium thioaluminate phosphor films comprising a phosphor compound having a novel crystal lattice structure that increases the electroluminescent light emission from the film. The phosphor films are for use in electroluminescent displays and in particular, thick film dielectric electroluminescent displays.
摘要:
A method and apparatus are provided for determining a priming status of a pumping system. The pumping system includes a water pump and a variable speed motor. The method includes the steps of determining a reference power consumption of the motor, determining an actual power consumption of the motor, comparing the reference and actual power consumptions, and determining a priming status of the pumping system based upon the comparison. In addition or alternatively, the method includes operating the motor at a motor speed and altering control of the motor based upon the priming status. In addition or alternatively, the pumping system includes means for determining a reference power consumption of the motor, means for determining an actual power consumption of the motor, means for determining a priming status of the pumping system, and means for altering control of the motor based upon the priming status.
摘要:
A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.
摘要:
An improved dielectric layer of an electroluminescent laminate, and method of preparation are provided. The dielectric layer is formed as a thick layer from a ceramic material to provide: a dielectric strength greater than about 1.0.times.10.sup.6 V/m; a dielectric constant such that the ratio of the dielectric constant of the dielectric material to that of the phosphor layer is greater than about 50:1; a thickness such that the ratio of the thickness of the dielectric layer to that of the phosphor layer is in the range of about 20:1 to 500:1; and a surface adjacent the phosphor layer which is compatible with the phosphor layer and sufficiently smooth that the phosphor layer illuminates generally uniformly at a given excitation voltage. The invention also provides for electrical connection of an electroluminescent laminate to voltage driving circuity with through hole technology. The invention also extends to laser scribing the transparent conductor lines of an electroluminescent laminate.
摘要翻译:提供了电致发光层压板的改进的介电层及其制备方法。 介电层由陶瓷材料形成为厚层,以提供:大于约1.0×10 6 V / m 2的介电强度; 介电常数使得介电材料的介电常数与荧光体层的介电常数之比大于约50:1; 使得电介质层的厚度与荧光体层的厚度的比率在约20:1至500:1的范围内的厚度; 以及与荧光体层相容并且足够光滑的磷光体层的表面,使得荧光体层在给定的激发电压下大致均匀地照射。 本发明还提供电致发光层压板与通孔技术的电压驱动电路的电连接。 本发明还延伸到激光刻划电致发光层压板的透明导体线。
摘要:
A process of hard anodizing or Type III anodizing an aluminum article creates a heat stable, hard anodized, color surface on the exterior of the article. The process includes anodizing the aluminum article to achieve a hard anodized base layer on a surface of the article. A copper layer is deposited after the exterior is hard anodized. A tin layer is deposited after the step of depositing the copper layer.
摘要:
A variable speed pumping system and an associated method for moving water of an aquatic application. The variable speed pumping system includes a water pump for moving water in connection with performance of an operation upon the water. A variable speed motor is operatively connected to drive the pump. A sensor senses a parameter of the operation performed upon the water. A controller controls speed of the motor in response to the sensed parameter of operation.
摘要:
The present invention is a low pressure physical vapor deposition method for the deposition of multi element sulfide thin film phosphor compositions for electroluminescent devices where a thermal source comprising a polysulfide compound provides the source of sulfur species for phosphor film deposition and/or annealing. The method is particularly useful for the deposition of phosphors for full color ac electroluminescent displays employing thick film dielectric layers with a high dielectric constant.