48 results about "Optical sorting" patented technology

The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.

Microspheres are sorted by resonant light pressure effects. An evanescent optical field is generated when light is confined within the interior of an optical element such as a surface waveguide, a tapered microfiber, or a prism. Microspheres brought within vicinity of the surface are subjected to forces that result from a coupling of the evanescent field to whispering gallery modes (WGM) in the microspheres. Alternatively, a focused laser beam is directed close to the edge of the microspheres to exert resonant optical forces on microspheres. Alternatively, standing optical waves are excited in the optical element. Optical forces are resonantly enhanced when light frequencies match WGM frequencies in the microspheres. Those microspheres for which resonance is obtained are more affected by the evanescent field than microspheres for which resonance does not occur. Greater forces are applied to resonating microspheres, which are separated from a heterogeneous mixture according to size.

The invention relates to an optical flow control chip utilizing impinging stream and optical scattering force and application thereof for sorting micro-nano particles, belonging to the field of optical flow control chips. The optical flow control chip comprises a cylindrical optical separation cavity, wherein one side of the optical separation cavity is connected with an impinging stream inlet through an impinging stream channel, the other side of the optical separation cavity is provided with an auxiliary flow inlet and a sample flow inlet, the center line of a channel formed by converging of an auxiliary flow channel and a sample flow channel and the center line of the impinging stream channel are positioned on the same straight line, and two sides of the channel formed by converging of the auxiliary flow channel and the sample flow channel are respectively connected with an inlet of sheath flow through a sheath flow channel, and then are connected with the optical separation cavity; an optical fiber groove with a collimating lens, as well as a large-particle outlet and a small-particle outlet, is further formed in the optical separation cavity. According to the invention, a point with the minimal speed value is formed at the center of an optical sorting cavity, so that an optical scattering force can be used for sorting particles at the point, the average speed of sorting operation by the optical force is greatly improved, and the sorting precision and efficiency are improved.

A chute for an optical sorting machine allows objects to be sorted to drop under gravity from the lower end of the chute, thereby supplying the objects to an optical detection section. The chute is provided with: a first portion which includes a portion for receiving the objects to be sorted which are supplied from a supply section; and a second portion which continues from the first portion. The first portion is composed of a single part and has: flat surfaces along which the objects to be sorted flow down; and connection surfaces. The flat surfaces located upstream are bent downward and the connection surfaces located downstream are bent upward to form a smooth undulation in the surface along which the objects to be sorted flow down.

The application discloses an optical sorting device for sorting deteriorated rice seeds. The optical sorting device comprises an optical system, an analysis system and a transfer system, wherein the optical system comprises a light source and an image acquisition component; the wavelength provided by the optical source is 600 to 650nm; light emitted by the light source penetrates through rice seeds in an image acquisition area and then is acquired by the image acquisition component; the analysis system is used for receiving an image acquired by the image acquisition component and analyzing theimage; the transfer system is connected with the analysis system and respectively transfers the rice seeds to corresponding sorting areas according to the analysis result of the analysis system. Theapplication also provides optical sorting equipment for the rice seeds. According to the scheme provided by the application, recognition and sorting of the deteriorated rice seeds such as preharvest sprouting, rice grain powder and mildew are realized, and the effect of improving the germination percentage of the rice seeds is obvious.

The invention discloses a glass powder classification optical separation and sorting system. The glass powder classification optical separation and sorting system comprises a Mogensen vibrating screenprovided with two sorting channels. A material of 3-8 mm in the first sorting channel is sorted through a first-grade vibrating screen and a first set of cullet optical sorting machines. A first cullet Z-shaped screen and a first cyclone separator are arranged between the first-grade vibrating screen and the first set of cullet optical sorting machines. A first wind circulating device is arrangedon the first set of cullet optical sorting machines. A eddy current separator and a drying machine are arranged in front of the Mogensen vibrating screen. An outlet of the first-grade vibrating screen is connected with a metal classification packing device. A fine material of 0-3 mm in the second sorting channel is sorted through a second-grade vibrating screen, a second cullet zigzag screening machine, a second cyclone separator and a second set of cullet optical sorting machines. The glass powder classification optical separation and sorting system can provide multiple kinds of finely sorted powder, facilitates removal of all impurities and sundries, greatly improves the sorting quality and production capacity and cannot affect the sorting efficiency.

The invention relates to an optical flow control chip utilizing impinging stream and optical scattering force and application thereof for sorting micro-nano particles, belonging to the field of optical flow control chips. The optical flow control chip comprises a cylindrical optical separation cavity, wherein one side of the optical separation cavity is connected with an impinging stream inlet through an impinging stream channel, the other side of the optical separation cavity is provided with an auxiliary flow inlet and a sample flow inlet, the center line of a channel formed by converging of an auxiliary flow channel and a sample flow channel and the center line of the impinging stream channel are positioned on the same straight line, and two sides of the channel formed by converging of the auxiliary flow channel and the sample flow channel are respectively connected with an inlet of sheath flow through a sheath flow channel, and then are connected with the optical separation cavity; an optical fiber groove with a collimating lens, as well as a large-particle outlet and a small-particle outlet, is further formed in the optical separation cavity. According to the invention, a point with the minimal speed value is formed at the center of an optical sorting cavity, so that an optical scattering force can be used for sorting particles at the point, the average speed of sorting operation by the optical force is greatly improved, and the sorting precision and efficiency are improved.

The invention relates to an after-treatment system for kitchen wastes and a method. The after-treatment system comprises a frass rotary screen; a frass separating section, a worm separating section and a waste separating section are arranged in the frass rotary screen; the frass separated from the frass separating section enters into a tempering machine; a grinder is connected with a discharging port of the tempering machine; a frass conveying device is arranged under the discharging port of the grinder; a discharging end of the frass conveying device is connected with an aerobic fermentationworkshop; a waste conveying device is arranged at the discharging end of the aerobic fermentation workshop; the separated worms enter into an imago conveying device; an optical sorting machine is arranged at the discharging end of the imago conveying device; a blanching machine is arranged at the discharging end of the optical sorting machine; a cleaning machine is arranged at the discharging endof the blanching machine; a refrigerator is arranged at the discharging end of the cleaning machine; an instant freezer is arranged at the discharging end of the refrigerator; a worm grinder is arranged at the discharging end of the instant freezer; a packer is connected with the worm grinder. The after-treatment system has the advantages that the materials after breeding worms are fully utilized,a scientific and reasonable treating system is combined with a full automatic procedure assisted by precise instruments, the degree of automation is 95% or above and the additional value of rear-endoutput is ultrahigh.

The invention discloses an optical sorting processing system and a processing method for construction waste. The optical sorting processing system for construction waste comprise a conveyor belt, a detection device, a sorting device and a collection device, wherein the conveyor belt is used for conveying materials; the detection device comprises a linear array camera and an industrial personal computer; the linear array camera is arranged above one side of the conveyor belt; the industrial personal computer is connected with the linear array camera; the sorting device comprises a PLC system, an air pump and a blowing valve group; the PLC system is connected with the air pump and the blowing valve group; the blowing valve group is arranged below one side of the conveyor belt; the collectiondevice comprises a plurality of recovery boxes; the recovery boxes are arranged at one side of the blowing valve group; and the industrial personal computer is connected with the PLC system. According to the optical sorting processing system for construction waste, the linear array camera is matched with the industrial personal computer, the PLC system and the blowing valve group to sort and process the construction waste, the linear array camera collects picture information and feeds back the picture information to the industrial personal computer, the industrial personal computer analyzes and processes the picture information and sends an instruction to the PLC system, and the PLC system controls the blowing valve group to blow the falling materials into the corresponding recycling boxes, so that the sorting efficiency is greatly improved.

Provided is a color sorter that easily carries out flow rate adjustments for raw materials in a slip flow on a shoot for an optical sorting unit and, when the raw material is supplied from a huller at a rate greater than the maximum throughput, automatically restricts the amount input to an input hopper and can prevent damage and burn out of a delivery system motor. An input hopper (6) for receiving the raw material is formed from: a left and right pair of side walls; an elevator unit housing (7) side front wall (6b); a back wall (6c) facing the front wall (6b); an inclined shelf plate (6d) extending at an incline from the lower part of the front wall (6b); and an inclined shelf plate (6e) positioned lower than the inclined shelf plate (6d) and provided so as to extend at an incline towards a supply opening (7a) of the elevator unit housing (7) from the lower part of the back wall (6c). In addition, a flow rate adjusting valve (12) that adjusts the amount of raw material received is provided on the lower part of the inclined shelf plate (6e), and a temporary retaining tank (21) and the flow rate adjusting valve (12) are connected so as to restrict the received flow of raw material when the temporary retaining tank (21) moves downward.

The present invention intends to provide an optical sorting machine which can improve the collection rate of non-defective products without increasing the size of the machine. The optical sorting machine of the present invention includes a granular object feed unit including storage means that stores an object to be sorted, and transfer means that transfers the object to be sorted from the storage means; an optical sorting unit including optical detection means that detects an object to be sorted falling along a predetermined trajectory from an end portion of the transfer means, determination means that determines a type of the object to be sorted based on a detection signal from the optical detection means, an ejector that removes an object to be sorted determined as a specific type from the predetermined falling trajectory based on a determination result by the determination means, and a discharge hopper having a first discharge passage provided at a falling position of the object to be sorted falling along the predetermined trajectory, a second discharge passage provided at a falling position of the object to be sorted removed from the predetermined falling trajectory, and a third discharge passage formed between the first discharge passage and the second discharge passage; and conveyance means that conveys an object to be sorted discharged from the third discharge passage of the discharge hopper in the optical sorting unit to the storage means of the granular object feed unit.

The invention provides an integrated photolithography plate manufacturing method and a sorting method for producing LED chips. Wherein the method for making the integrated photoresist comprises the following steps: 1) two dividing lines arranged perpendicular to each other on the integrated photoresist divide the photoresist into four quadrants, and use the two dividing lines as abscissa lines and The ordinate forms a coordinate system; 2) in any quadrant, taking the zero point of the coordinate system as a reference, extending to the abscissa line and the ordinate direction to form a square standard cell area containing at least one grain template; 3) in four quadrants , consecutively set a plurality of comparison unit areas with the same graphics and specifications as the grain templates in the standard unit area, and the arrangement position of each grain template in each comparison unit area is the same as that of each grain template in the standard cell area , so as to obtain an integrated photolithography plate. This method quickly separates the crystal grains of the LED chip by designing the pattern and specification of the crystal grains on the integrated photolithography board.

Microspheres are sorted by resonant light pressure effects. An evanescent optical field is generated when light is confined within the interior of an optical element such as a surface waveguide, a tapered microfiber, or a prism. Microspheres brought within vicinity of the surface are subjected to forces that result from a coupling of the evanescent field to whispering gallery modes (WGM) in the microspheres. Alternatively, a focused laser beam is directed close to the edge of the microspheres to exert resonant optical forces on microspheres. Alternatively, standing optical waves are excited in the optical element. Optical forces are resonantly enhanced when light frequencies match WGM frequencies in the microspheres. Those microspheres for which resonance is obtained are more affected by the evanescent field than microspheres for which resonance does not occur. Greater forces are applied to resonating microspheres, which are separated from a heterogeneous mixture according to size.

Microspheres are sorted by resonant light pressure effects. An evanescent optical field is generated when light is confined within the interior of an optical element such as a surface waveguide, a tapered microfiber, or a prism. Microspheres brought within vicinity of the surface are subjected to forces that result from a coupling of the evanescent field to whispering gallery modes (WGM) in the microspheres. Alternatively, a focused laser beam is directed close to the edge of the microspheres to exert resonant optical forces on microspheres. Optical forces are resonantly enhanced when light frequencies match WGM frequencies in the microspheres. Those microspheres for which resonance is obtained are more affected by the evanescent field than microspheres for which resonance does not occur. Greater forces are applied to resonating microspheres, which are separated from a heterogeneous mixture according to size.