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235results about How to "Increase line width" patented technology

Optical fiber sensing system based on phase-shifted optical fiber grating

The invention provides an optical fiber sensing system based on a phase-shifted optical fiber grating. The optical fiber sensing system comprises a semiconductor laser light source, a first coupler, the phase-shifted optical fiber grating, a fiber Bragg grating, a second coupler and a wavelength demodulation instrument, wherein the semiconductor laser light source generates a laser with preset wavelength width; the first coupler is used for coupling the laser with the preset wavelength width to the phase-shifted optical fiber grating and coupling a signal laser reflected back by the fiber Bragg grating to the second coupler; a transmission window of the phase-shifted optical fiber grating changes along with change of external physical quantity of the phase-shifted optical fiber grating, and transmitted portions of the laser passing through the phase-shifted optical fiber grating form the signal laser with wavelength narrower than the preset wavelength; the fiber Bragg grating is used for reflecting the signal laser, and the reflected signal laser is transmitted to the first coupler by the aid of the phase-shifted optical fiber grating; the second coupler is used for coupling the signal laser to the wavelength demodulation instrument; and the wavelength demodulation instrument is used for demodulating the signal laser to obtain the external physical quantity of the phase-shifted optical fiber grating. The optical fiber sensing system based on the phase-shifted optical fiber grating does not need a high-resolution spectrograph or a narrow-linewidth tunable laser, so that cost is greatly saved.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Liquid crystal panel for liquid crystal display device

To utilize effectively the panel space of the liquid crystal panel, this invention has provided a wiring structure, in which the seal material and BM are coated in a superposition and the UV light is irradiated from one side of the TFT substrate; this invention has also provided a wiring structure, in which the seal material can still be irradiated by the UV light with high efficiency, meanwhile, the drop of the resistance value of the metal wiring on the TFT substrate can be restricted to a specific range. The solution is: the liquid crystal dropped is sandwiched between the TFT substrate and the CF substrate, meanwhile the liquid crystal panel is formed by adhering the light cured seal material disposed at the peripheral area of two substrates. In the adhering-formed liquid crystal panel, for the wiring portion, which is the portion of wiring disposed on the TFT substrate superposing the light cured seal material, the wiring structure is formed as follows, that is, the region of the seal material is divided into three regions, an adjacent region, a middle region and an outer region. The function of the respective regions must be held, and the resistance of the metal wiring is minimized under the precondition that the respective function is satisfied sufficiently.
Owner:INFOVISION OPTOELECTRONICS HLDG LTD

Rapid subtractive manufacturing process of circuit boards

The invention relates to a rapid subtractive manufacturing process of circuit boards. In the process, ink-jet printing technology is adopted and graphs are transferred to the circuit boards by a spray head by means of ink; the working procedure is as follows: punching-deburring, cleaning and passivating-copper plating-cleaning-front and back coating-front and back graphic printing-graphic curing-etching-cleaning and passivating-quality inspecting-solder mask ink front and back printing and UV curing-UV curing-text ink front and back printing and UV curing-UV curing-tin spraying and surface processing-molding-electrical testing-quality inspecting-packaging-factory leaving; the manufacturing process takes about 5h. The process has the advantages of simpleness, convenience, one-step forming, sharp graphic margin, high circuit graph precision, simple materials, manufacturing cost reduction, manufacturing cycle shrinkage and economic benefit increase; wherein, the line width of the circuit graph is increased to be less than 1 / 1000 from 3 / 1000 and the graphs are mainly transferred by means of ink. The electroplating link is omitted, thereby dramatically the energy consumption and industrial wastewater discharge, and ensuring good energy saving and environmental protection effects and low cost.
Owner:陈立峰
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