33results about How to "Good optical structure" patented technology

A single-fiber bidirectional optical transceiver module of the same wavelength. A sub-wavelength grating and a Faraday rotator are used, and the same element is reused to implement a polarization multiplex / de-multiplex function, so as to implement transmission and receiving of an optical signal in a small space. The single-fiber bidirectional optical transceiver module has less optical elements, a compact structure, and low cost, meeting the needs on a miniaturized, integrated, and high speed optical transceiver module for a modern optical communication system.

An optical wave-guide device is provided between a light source and a lower diffuser for deflecting and reflecting the light passing through the optical wave-guide device so that the light is consistently diffused through the lower diffuser without creating any blind area among light sources to effectively solve the prior art problem of displaying bright bands and dark bands on the LCD.

A structure of an optical path for laser range finding includes a main body and a light-emitting unit assembled in the main body. The main body has a transmitting channel, a receiving channel and a calibration channel. The light-emitting unit is assembled in the transmitting channel. The light-emitting unit emits an external optical beam and an internal optical beam. The external optical beam is emitted through the transmitting channel. The internal optical beam is emitted to the receiving channel via the calibration channel. An included angle is defined between the external optical beam and the internal optical beam. A receiver is mounted in the receiving channel. Under this arrangement, the external optical beam and the internal optical beam do not interfere with each other.

The present invention relates to a high scattering smectic liquid crystal material and display device using the same. In the present invention, a series of smectic A phase liquid crystals having compact arrangement of crystal domains or a series of smectic liquid crystal mixed materials having a degree of order higher than that of the smectic A phase and an optical texture different from that of the smectic A phase are obtained by mixing a smectic liquid crystal with an organic compound having a high optical anisotropy (Δn) or mixing different types of smectic phases. When used in a smectic stable state liquid crystal display pattern, these materials have high scattering properties and can effectively improve the contrast of a smectic liquid crystal display device. The present invention also improves contrast when it used in a reflective smectic liquid crystal display device.

The invention relates to the technical field of petroleum deep processing, and particularly relates to a preparation method of mesophase pitch. The preparation method comprises the following steps: uniformly mixing dimethylsulfoxide extract oil with hydrogen cracking tail oil at a mass ratio of dimethylsulfoxide extract oil to hydrogen cracking tail oil being 6:4-9:1, carbonizing for 10-25 h in a high-pressure autoclave at 430-480 DEG C, 12-18 MPa, in an inert gas atmosphere and stirring condition to obtain the mesophase pitch, wherein the dimethylsulfoxide extract oil is the dimethylsulfoxide extract oil of naphthene base crude oil vacuum gas oil, the hydrogen cracking tail oil is tail oil obtained through fixed bed hydrocracking or suspended bed hydrocracking of naphthene base crude oil vacuum residuum. The preparation method of mesophase pitch has the outstanding advantages as follows: the sources of raw materials are extensive and the cost is low; a hydrogenation solvent and a catalyst are not needed, the preparation process is simple; the prepared mesophase pitch is low in softening point, good in optical structure and high in mesophase content.

The invention discloses a preparation method and a preparation system of mesophase pitch, and the preparation method comprises the following steps: (1) heating a first raw material, feeding the first raw material into a first reaction unit, and reacting to obtain a first reaction material flow; (2) heating a second raw material, feeding the heated second raw material and the first reaction material flow into a second reaction unit, and reacting to obtain a second reaction material flow; and (3) enabling the second reaction material flow to enter a third reaction unit after being rapidly cooled to be in contact with carrier gas for treatment, and obtaining an oil-gas product and mesophase pitch after treatment. The preparation system comprises a heating unit, the first reaction unit, the second reaction unit, a quenching device, the third reaction unit and a fractionation system. The preparation system of the mesophase pitch can stably run for a long period, and the mesophase pitch obtained by the preparation method is good in quality controllability and high in yield.

The invention provides a method for preparing petroleum-based mesophase pitch with uniform and high mesophase content. In the method, the FCC oil slurry of naphthenic or intermediate-based crude oil is used as a raw material, and under the action of a catalyst, the halogenated alkanes are mixed with the raw materials, and the temperature is raised. to 280-350° C., under a pressure of 0-2 MPa, and react for 5-20 hours to obtain modified oil. Take the distillate oil of the modified oil above 400°C, mix the distillate oil with the co-carbonizing agent, and react for 2-10 hours at 360-480°C, with a reaction pressure of 4-10 MPa, to obtain high-quality mesophase pitch. The technological process of the invention is simple and easy to operate, and the prepared mesophase pitch has uniform anisotropic structure, high mesophase content (>96%), low softening point (240-260 DEG C), and good spinnability.

The present invention relates to an optical structure for producing a decorative lighting effect in a lighting device, and a lighting device comprising at least one of the optical structure, wherein the optical structure comprises an optical element formed in one piece and comprising at least one opening; and an LED-filament comprising a substrate and a plurality of light sources arranged on the substrate, the substrate being at least partly made of a flexible material; wherein the at least one opening is adapted to receive the LED-filament such that a portion of the LED-filament extends through and is at least partly enclosed by a surrounding wall of the at least one opening such that the LED-filament is guided by and held in place by means of the at least one opening of the optical element and wherein light emitted from the LED-filament interacts with the optical element.

The invention discloses a light-emitting device, the light-emitting device includes a package substrate, has a first surface and a second surface opposite, a patterned conductive layer is arranged on the first surface, and the patterned conductive layer passes through a spacer at least Divided into two first and second regions that are electrically isolated from each other; LED chips, mounted on the patterned conductive layer, have opposite upper surfaces, lower surfaces, and sidewalls, and the lower surface is provided with a first electrode and the second electrode, wherein the first electrode is electrically connected to the first region, and the second electrode is electrically connected to the second region; the encapsulation layer covers the LED chip and the first surface of the substrate, and the encapsulation layer is in The thickness directly above the LED chip is greater than or equal to 0.5 times the thickness of the LED chip and less than or equal to 1.2 times the thickness of the LED chip.

The invention relates to the field of a petroleum deep processing technology, in particular to a method of preparing meso-phase pitch by hydro-cracking tail oil. The method is characterized by comprising the steps of adopting hydro-cracking tail oil as a raw material, adding 1-8wt% of co-carbonization additive, and charring the hydrocracking tail oil to obtain the meso-phase pitch in an inert gas atmosphere and a stirring condition at 380-420 DEG C and 6-10 MPa. Optimally, the hydro-cracking tail oil is the hydro-cracking tail oil of naphthenic crude atmospheric pressure residual oil, the co-carbonization additive is one of phenolic resin and butadiene styrene rubber, the inert gas comprises either argon or nitrogen, and the stirring condition is 400-900r / min. The method of preparing the meso-phase pitch by the hydro-cracking tail oil has the outstanding advantages of extensive resources and low price; furthermore, the preparation process is simple; in addition, the prepared meso-phase pitch is good in optical structure and high in inter-phase content.

The invention discloses an optomechanical microcavity structure containing a nonlinear mechanical oscillator, a measurement system and a method, and belongs to the field of micro-nano optoelectronic microcavity sensing. In the optomechanical microcavity composed of two one-dimensional photonic crystal micro-nanobeams, the movable micro-nanobeams are designed in a nonlinear mechanical oscillator, and the microdisk microcavity is used to monitor the movement of the microprobes to realize non-linear The displacement of the linear mechanical oscillator is measured to realize the experimental research on the nonlinear optical-mechanical coupling characteristics of the optical force-driven cavity integrated on the all-optical chip; at the same time, a coupling method based on two-way micro-nano fiber-optical microcavity is also designed Used to realize optical-mechanical coupled pumping and displacement detection simultaneously, the all-optical detection system can effectively observe nonlinear phenomena in optomechanical microcavity systems. For the first time, a design that introduces a nonlinear mechanical oscillator into an optomechanical microcavity is proposed, and at the same time, the observation of nonlinear phenomena under the action of optical-mechanical coupling is realized through experimental measurements.

The invention discloses an optical mechanical microcavity structure containing a nonlinear mechanical oscillator, a measuring system and a measuring method, and belongs to the field of micro-nano photoelectron microcavity sensing. In an optical mechanical micro-cavity formed by two one-dimensional photonic crystal micro-nano beams, a movable micro-nano beam is designed in a nonlinear mechanical oscillator; in addition, a micro-disk micro-cavity is used for monitoring the movement of a micro probe so as to realize the measurement of the displacement of the nonlinear mechanical oscillator; therefore, the experimental research of the nonlinear optical-mechanical coupling characteristic driven by cavity light force integrated on the all-optical chip is realized. Meanwhile, a coupling method based on two paths of micro-nano optical fibers and an optical microcavity is designed to be used for achieving optical-mechanical coupling pumping and displacement detection at the same time, wherein the all-optical detection system can effectively observe the nonlinear phenomenon in an optical-mechanical microcavity system. According to the invention, the design that a nonlinear mechanical oscillator is introduced into an optical mechanical microcavity is proposed for the first time, and meanwhile, the nonlinear phenomenon under the optical-mechanical coupling effect is observed through experimental measurement.

The invention discloses an all-optical integrated optomechanical microcavity structure containing nonlinear mechanical oscillators, belonging to the field of micro-nano optoelectronic microcavity sensing. It includes a first micro-nano beam, a second micro-nano beam, a linear mechanical vibrator, a nonlinear mechanical vibrator and a measuring microdisk; the second micro-nano beam is fixedly connected to one side of the linear mechanical vibrator, and the second micro-nano beam is connected to the first micro-nano beam There is an air gap between the nano-beams; the nonlinear mechanical vibrator is connected in series on the other side of the linear mechanical vibrator, and a micro-nano probe is designed on the nonlinear mechanical vibrator. There is a first air slot between the micro-nano probe; the bottoms of the first micro-nano beam, the second micro-nano beam, the linear mechanical vibrator and the nonlinear mechanical vibrator are suspended in the air. The movable micro-nanobeam is designed in a nonlinear mechanical oscillator to realize the experimental study of the nonlinear optical-mechanical coupling characteristics of the optical-mechanical drive of the cavity integrated on the all-optical chip.

The invention belongs to the technical field of optical structure design, and discloses an optical structure optimization design method based on a deep neural network, and the method comprises the steps: taking a parameter of a to-be-optimized optical structure as an input, and employing a spectrum prediction network based on the deep neural network to carry out the prediction of a spectrum; and calculating and obtaining a target function based on the predicted spectrum, optimizing the target function by adopting a multi-valued adaptive particle swarm algorithm, and adaptively and reversely searching an optimized optical structure. The problems that in the prior art, simulation time of an optical structure is long, manual adjustment efficiency is low, and global optimal structure parameters are difficult to find are solved, and the optical structure with the optimal optical attribute can be obtained conveniently and efficiently.

The invention discloses a microscopic surface measuring device, which comprises a projection screen, a base, a microscope objective, an imaging lens and a CCD detector, an off-axis optical system is constructed by the projection screen, the microscope objective, the imaging lens and the CCD detector, the base is used for placing a test element, a processor is connected with the projection screen and the CCD detector, the processor enables the projection screen to generate a sine stripe light signal according to pre-stored setting, the sine stripe light signal is projected to the test element at a specific angle and is reflected to the microscope objective through the surface of the test element to form a convergent light beam, and the convergent light beam passes through the imaging lens, a deformed stripe light signal is presented in the CCD detector, and the processor analyzes the deformed stripe light signal to obtain the surface shape information of the test element.

The invention discloses a high-temperature-resistant, high-toughness and sulfuration-resistant AMOLED packaging silica gel prepared from the following raw materials in parts by weight: 35-44 parts ofhydrogen-terminated silicone resin, 26-32 parts of vinyl resin, 15-26 parts of polymethylphenylsiloxane, 7-11 parts of dimethyl polysiloxane monomers, 7-14 parts of divinyltetramethyldisiloxane, 6-12parts of tetrabutyl ammonium hydroxide, 3-6 parts of catalyst, 4-7 parts of binder, 3-5 parts of crosslinking agent, 2-4 parts of inhibitor, 2-3 parts of curing accelerator and 3-5 parts of curing inhibitor. Compared with the prior art, the high-temperature-resistant, high-toughness and sulfuration-resistant AMOLED packaging silica gel has the beneficial effects that the AMOLED packaging silica gel is strong in sulfuration resistance, good in sealing performance and high temperature resistance, good in weather resistance, yellowing-resistant and easy to defoam and further has the advantages such as high toughness and convenience in operation in addition to excellent optical structure and high refractive index.

The invention relates to the technical field of petroleum deep processing, and particularly relates to a preparation method of mesophase pitch. The preparation method comprises the following steps: uniformly mixing dimethylsulfoxide extract oil with hydrogen cracking tail oil at a mass ratio of dimethylsulfoxide extract oil to hydrogen cracking tail oil being 6:4-9:1, carbonizing for 10-25 h in a high-pressure autoclave at 430-480 DEG C, 12-18 MPa, in an inert gas atmosphere and stirring condition to obtain the mesophase pitch, wherein the dimethylsulfoxide extract oil is the dimethylsulfoxide extract oil of naphthene base crude oil vacuum gas oil, the hydrogen cracking tail oil is tail oil obtained through fixed bed hydrocracking or suspended bed hydrocracking of naphthene base crude oil vacuum residuum. The preparation method of mesophase pitch has the outstanding advantages as follows: the sources of raw materials are extensive and the cost is low; a hydrogenation solvent and a catalyst are not needed, the preparation process is simple; the prepared mesophase pitch is low in softening point, good in optical structure and high in mesophase content.

The invention discloses a production method and production system of mesophase pitch. The production method is that the raw material enters the reaction unit A after being heated, and the reaction effluent enters the reaction unit B after rapid cooling and is contacted with the carrier gas for treatment. The oil and gas products and mesophase pitch are obtained, and the oil and gas products further enter the fractionation system for processing. The production system includes a heating furnace, a reaction unit A, a quenching device, a reaction unit B and a fractionation system. The production method of the mesophase pitch not only has high yield of the target product and good quality controllability, but also can realize long-term stable continuous production.

The invention discloses a preparation method and a preparation system of mesophase pitch. The preparation method includes the following contents: (1) the first raw material enters a first reaction unit after being heated, and the first reaction material stream is obtained after the reaction; (2) ) After the second raw material is heated and the first reaction stream enters the second reaction unit, the second reaction stream is obtained after the reaction; (3) The second reaction stream is rapidly cooled and then enters the third reaction unit to contact with the carrier gas for processing , oil and gas products and mesophase pitch are obtained after treatment. The preparation system includes a heating unit, a first reaction unit, a second reaction unit, a quenching device, a third reaction unit and a fractionation system. The preparation system of the mesophase pitch can operate stably for a long period, and the mesophase pitch obtained by the above preparation method has good quality controllability and high yield.