70 results about "Laser beam transmission" patented technology

A laser beam transmission system comprises a laser beam system and a controller that controls the laser beam system. The controller is configured to direct a laser beam at a location nearest to a maximum of an uncertainty area in which a satellite is expected to be located. The controller is configured to move the laser beam from the location to a next location nearest to the maximum of the uncertainty area in response to not receiving a confirmation that the satellite is at the location. The next location becomes a current location for the laser beam. The controller is configured to continue to move the laser beam from the current location to the next location nearest to the maximum of the uncertainty area from the current location in response to not receiving the confirmation that the satellite has received the laser beam.

The embodiment of the invention provides laser-induced plasma cavitation activated root canal flushing equipment which comprises a working host, a light guide part and a working hand tool, a laser generation module is arranged in the working host, and the light guide part is connected with the laser generation module and the working hand tool; the laser generation module is used for generating laser beams; the light guide part is used for transmitting the laser beam generated by the laser generation module to the working hand tool; the working hand tool is used for focusing the received laser beam into the flushing fluid in the dental pulp cavity, generating a light-induced breakdown effect in the flushing fluid in the dental pulp cavity by utilizing laser energy, and inducing plasma cavitation to activate the flushing fluid in the root canal so as to flush the root canal.

A method for additive manufacturing, wherein an additive-manufacturing head (12) is provided, configured both for directing one or more jets of powders, in particular metal powders, onto a region of a working surface (110), and for directing simultaneously a laser beam onto such a region, to form a laser-beam focusing spot (LS) on the region, and wherein, during direction of the powder jets and of the laser beam, the additive-manufacturing head (12) is simultaneously translated in a direction transverse to the direction of the laser beam so as to give rise to a trace (MRP) obtained by melting of the powders as a result of the power transmitted to the powders by the focusing spot (LS). During movement of the additive-manufacturing head (12) in the transverse direction, a dynamic movement is imparted on the laser beam emitted by the head (12), the movement being configured in such a way as to obtain a width of the trace (MRP) that is independent of the size of the focusing spot (LS) of the laser beam (L) and is equivalent to the one that would be produced by an apparent spot having a width substantially corresponding to the width of the trace (MPP), and in such a way that the distribution of the power transmitted by the laser beam to the trace (MPP) varies along the direction of the width of the trace (MPP).

In certain embodiments, an ophthalmic system is provided. The ophthalmic system includes a low power laser source configured to generate a low power laser beam, wherein the low power laser source has a power of between 5 milliwatts (mW) and 20 mW, and a first illumination device configured to transmit the low power laser beam into a vitreous cavity of an eye. The ophthalmic system further includes a red-green-blue (RGB) light-emitting diode (LED) light source configured to generate a RGB light, and a second illumination device configured to transmit the RGB light into the vitreous cavity of the eye.

This invention discloses a magnetic trap and its design method for cold atom ultra-high / ultra-high vacuum measurements. The invention utilizes three types of coils: a first type generates an axial magnetic field with a bias magnetic field; a second type generates a magnetic field that cancels out the bias magnetic field generated by the first type; and a third type generates a radial gradient magnetic field. This ensures that the minimum magnetic field strength of the magnetic well is not zero, effectively suppressing the uncertainty caused by Majorana loss in vacuum measurements and enabling more precise measurements of ultra-high or ultra-high vacuum. This allows for the construction of a primary cold atom standard within the ultra-high / ultra-high vacuum range. Compared to existing magnetic trap technologies aimed at suppressing Majorana loss, this invention offers significant advantages such as compact structural design, ample space for the laser beam transmission path, and high precision in magnetic field control.

A laser system comprises a femtosecond laser, and a beam delivery system configured to deliver and scan a laser beam emanating from the femtosecond laser onto wood, based on a desired graphene design, wherein graphene is formed on the wood by the laser beam. A device capable of being fabricated by the laser system may include a temperature sensor which detects a temperature by measuring resistance of the graphene, a heater or a boiler which converts electrical energy to thermal energy, or electrical interconnects.

Examples of a laser additive manufacturing system are described. The system comprises a laser configured to generate a laser beam, a fiber optic coupled to the laser to transmit the laser beam to a laser optic head that is coupled to the fiber optic and comprises a focus lens to focus the light beam. The laser optic head is configured to slide along a sliding mechanism in X-direction. A powder feeder is used to continuously move in Y-direction and dispense an uniform layer of powdered material onto a powder bad that is positioned on a build plate of the building chamber. The build plate is configured to move in Z-direction. The light beam generated by the laser is focused using the laser optic head onto a small region of the powder bed where the powdered material is positioned producing small volumes of melt pools that are then cooled and a new layer of powdered material is dispensed over it.

The present invention includes a laser module that generates a laser beam and guides the laser beam generated by the laser module along a predetermined path, a laser beam transmission guide part which is arranged between the laser module and the laser beam transmission guide part and is used for superposing the plurality of laser beams; and a first imaging lens which is arranged between the laser module and the laser beam transmission guide part and is used for adjusting the focal point of the laser beam emitted by the laser module to the laser beam transmission guide part. Thus, it is possible to ensure a homogenized energy distribution of the laser beam while having a predetermined intensity or higher.

The invention relates to a device (1, 1 ') for emitting a light beam intended for use in a lighting device (E, E') to allow the production of a lighting effect, said device comprising a laser source (10) and means for transmitting at least one laser beam emitted by the laser source (10) to an optical device (5) of the lighting device (E, E '). The invention is characterized in that the transmission means comprise an optical fiber (2), one end of which is connected to the laser source (10) and the other end of which is intended to be connected to an optical device (5) of the lighting device (E, E '), said device further comprising means for protecting at least a portion of the optical fiber (2) extending between the two ends thereof.

The invention relates to the technical field of laser, and discloses a power monitoring method and device for a fiber laser, and the method comprises the steps: dividing a seed source into two beams through an optical splitter, transmitting a first laser beam to a first port of a circulator, outputting the first laser beam from a second port of the circulator, enabling the first laser beam to enter a grating, and enabling the second laser beam to enter a second port of the circulator; after being reflected by the grating, the light returns to the second port of the circulator, is finally output from the third port of the circulator, and enters the power monitor; the laser reflected by the grating is tuned through the temperature controller, a temperature-central wavelength schematic diagram is generated, a temperature-power line is generated by monitoring the power change condition of the tuned laser, the tuned first temperature-power line is compared with a preset temperature-power line, and the abnormal state type of the seed source is judged. The preset temperature-power line is a temperature-power line when the seed source is in a normal state. And comparing the temperature-power diagram with the temperature-power diagram of the seed source in a normal state to distinguish the occurred abnormal problems.

There is provided a multi-clad fiber assembly for reducing and eliminating deleterious laser-contaminant interrelations, and methods of making these assemblies. There is provided an optical connector having contaminants that are shielded from causing detrimental thermal effects, during laser beam transmittion, by preventing laser-contaminant interactions.

The present invention discloses a measurement and correction system and a measurement and correction method for the aberration of the entire laser beam transmission path. Among them, the measurement and correction method includes: an objective optical path aberration measurement and correction device, an auxiliary optical path aberration measurement and correction device, and a transmitting optical path and transfer aberration measurement and correction device; obtaining the objective optical path aberration through the objective optical path aberration measurement and correction device, transferring the objective optical path aberration through the auxiliary optical path aberration measurement and correction device, and finally completing the superposition of the transmitting optical path aberration and the objective optical path aberration through the transmitting optical path and transfer aberration measurement and correction device, and performing closed-loop correction.

The present invention relates to a laser transmission device and a laser transmission method, comprising a laser, a receiving module, a conducting module and an output module. The laser is used to generate a laser beam and output it to the receiving module through an armored cable. After receiving the laser beam output by the armored cable, the receiving module transmits the laser beam to the conducting module. The conducting module comprises a transmission section located inside a wall. The transmission section is used to transmit the laser beam received by the conducting module through at least a part of the wall. The output module is used to receive the laser beam transmitted by the conducting module and output the laser beam, thereby solving the problem of frequent replacement of the cutting head in the prior art. In addition, the laser transmission device arranges a laser that cannot withstand radiation outside the wall, thereby facilitating the protection and maintenance of the laser. The transmission section is used to transmit the laser from outside the hot room to inside the hot room. The optical path design is ingenious, which not only ingeniously solves the problem of spent fuel rod disintegration in the hot room, but also improves the efficiency of spent fuel rod disintegration.

Apparatus is disclosed for generating and modulating the power of a laser beam to be transmitted in an optical communication fiber. The apparatus includes a laser source and an electro-absorption modulator located on a common insulating or semi-insulating substrate. The laser source generates the laser beam. A high- frequency electrical signal encodes data to be transmitted by the modulated laser beam. The modulator is differentially driven by the electrical signal, which is terminated on the common substrate to minimize cross talk with other data channels. Traveling-wave electrodes connecting segments of the modulator and a termination network maintain electrical signal integrity and minimize losses.

An inspection apparatus includes: a first probe including a receiver antenna configured to detect the terahertz wave emitted by an inspection signal source and that has passed through the wafer, wherein the first probe includes: a first probe tip in which the receiver antenna is embedded, the receiver antenna including a first photoconductive switch; a first printed circuit board on which the first probe tip is mounted; a first optical bracket coupled to the first printed circuit board; a first optical connector configured to transmit a first laser beam into the first probe, and coupled to the first optical bracket, wherein the first laser beam is configured to excite the first photoconductive switch.

The invention relates to a Raman spectrum analysis system which comprises a shielding structure with a shielding cavity, a bearing table arranged in the shielding structure, a main machine comprising a laser, an image collector, an incident optical fiber and an emergent optical fiber, the laser and the image collector are both arranged on the outer side of the shielding structure, and the incident optical fiber is arranged on the outer side of the shielding structure. One end of the incident optical fiber is connected with the laser, the other end of the incident optical fiber penetrates through the shielding structure to face the bearing surface so as to irradiate a laser beam to a to-be-detected sample, one end of the emergent optical fiber is connected with the image collector, and the other end of the emergent optical fiber penetrates through the shielding structure to face the bearing surface so as to transmit the laser beam reflected by the to-be-detected sample to the image collector; in conclusion, according to the Raman spectrum analysis system in the embodiment, the bearing table is arranged in the shielding cavity of the shielding structure, and the laser, the image collector and the analyzer are arranged on the outer side of the shielding structure, so that radioactive substances can be detected in a relatively safe environment.

A method for determining the maximum detection field angle and the detection distance of a mechanical scanning laser radar belongs to the technical field of radars, and comprises the following steps: determining necessary interior orientation elements and design parameters thereof, and establishing a laser beam transmission link model of the mechanical scanning laser radar; calculating the shortest distance between the optical axis of the emitted light beam and the edge of the scanning mirror surface as well as the edge of the optical window glass, and determining a laser emission and echo boundary model constrained by the integrity of the emitted laser spot and the receiving field angle; and establishing and designing a laser radar detection view field model constrained by geometric parameters and a detection distance model constrained by the rotating speed of a scanning motor. According to the method for determining the maximum detection field angle and the detection distance of the mechanical scanning laser radar, a laser beam transmission link model and a geometric constraint relationship are established based on laser radar design model parameters, so that the maximum detection field angle and the detection distance which can be reached by the laser radar are determined; the problem that the structural design of the mechanical scanning laser radar is not matched with the detection target range is solved.

The present invention is used to carry out repairs on a defective circuit of a circuit board, with two conducting portions and a defective portion therebetween. The operating method comprises: using a laser light source of a single laser dual optical circuit repair member of a single laser repair module to emit an initial laser beam toward an energy distribution unit, thereby producing a first laser beam and a second laser beam; using a switching unit to mask the second laser beam, thereby transmitting the first laser beam toward the circuit board, to transform the defective portion into a sintered portion; and using the switching unit to mask the first laser beam, thereby transmitting the second laser beam toward the circuit board, thereby deflashing of the sintered portion, causing sintered sides of the sintered portion to be flush with two conducting sides of the two conducting portions.

A device for collaborative detection of carbon and nitrogen emissions and a method thereof are provided. The device includes an integrating cavity, a single beam laser and a dual beam hybrid laser set at opposite ends of the integrating cavity, and an information acquisition and analysis system. The single beam laser and the dual beam hybrid laser are respectively used to continuously emit and transmit laser beams into the integrating cavity. The single beam laser and the dual beam hybrid laser can achieve simultaneous spatio-temporal high-frequency detection of any concentration of CO2—CH4—N2O—N2 mixed gas in one integrating cavity, and the concentration of CO2, CH4, and N2O can be inverted through the information acquisition and analysis system. This device meets the research demand for simultaneous detection of multiple greenhouse gases under the same path, greatly improving the utilization efficiency of the integrating cavity and saving detection costs.

The invention relates to a multifunctional metal surface processing system based on a galvanometer, comprising a laser for emitting a processing laser; a laser beam splitting transmission device arranged opposite to a light outlet of the laser and used for splitting the received processing laser into at least a first coherent light beam and a second coherent light beam; a first galvanometer and a second galvanometer are arranged at the rear end of the laser beam splitting transmission device, the first galvanometer receives the first coherent light beam, and the second galvanometer receives the second coherent light beam; a displacement platform is arranged below the first galvanometer and the second galvanometer, the displacement platform is used for loading a workpiece to be processed, the first coherent light beam controlled by the first galvanometer and the second coherent light beam controlled by the second galvanometer converge to form an interference light spot, which is controlled by the first galvanometer, the second galvanometer and the displacement platform, and the interference light spot moves on the surface of the workpiece to be processed according to a preset trajectory to perform subtractive processing to obtain a desired product morphology.

The application discloses a biological prevention and treatment method and system based on wide-area laser scanning, and belongs to the fields of biological prevention and treatment and photoelectric technology. The system comprises: an image acquisition module, which is used for acquiring image information of a monitoring area and identifying the spatial coordinates of target organisms; a laser generation module, which is used for generating a laser beam; an optical deflection positioning module, which is arranged on a laser beam transmission path and is used for adjusting the projection angle of the laser beam according to the spatial coordinates of the target organisms; a second optical module, which is arranged on the light-emitting side of the laser beam and is connected with a control module, and is used for converting the laser beam into a regional spot with a specific diffusion angle; and the control module, which is used for controlling the optical deflection positioning module to cover the target organism area with the regional spot, and physically hits the target organism in a non-single-point accurate alignment manner. The application solves the problems of small coverage and insufficient dynamic tracking precision of the existing laser prevention and treatment technology, and improves the efficiency and accuracy of biological prevention and treatment in a large-area scene.

The present invention provides a semiconductor manufacturing device for an epitaxial process, including: a process chamber provided with an edge ring which supports the outer lower surface of a semiconductor substrate so that the lower surface of the semiconductor substrate is exposed, a substrate support which supports the outer lower surface of the edge ring, and a laser beam transmission plate positioned below the semiconductor substrate; a substrate heating part which emits a laser beam emitted from a VCSEL module to the semiconductor substrate and the lower surface of the edge ring through the laser beam transmission plate; and a beam guide part which emits a laser beam of a VCSEL module to the lower surface of the edge ring, wherein the substrate heating part is divided into a heating substrate area, a heating edge area, and a heating support area, in which VCSEL modules are positioned, and the beam guide part guides and emits a laser beam emitted from a VCSEL module positioned in the heating support area to the lower surface of the edge ring.

This invention discloses a cutting system and method, comprising: grooving equipment, grinding equipment, hidden dicing equipment, wafer casting equipment, and slitting equipment; the hidden dicing equipment includes a laser device for wafer dicing, the laser device comprising a laser, a tunable filter, a spatial light modulator, and a focusing structure arranged sequentially along the external optical path of the laser, the tunable filter being suitable for bandpass filtering of the laser beam, the spatial light modulator being suitable for shaping the laser beam, and the laser beam emitted from the self-focusing structure being suitable for generating multiple focal points distributed along the laser beam propagation direction. In this invention, the laser beam can be phase-modulated by the spatial light modulator to generate multiple focal points distributed along the laser beam propagation direction, improving processing efficiency; the tunable filter suppresses non-target wavelengths, providing a high-quality laser beam for the spatial light modulator, achieving laser beam shaping, and improving processing quality.

The invention relates to the technical field of laser communication microwave coding, in particular to an interstellar laser communication microwave coding method, which comprises the following steps: acquiring a microwave signal to be transmitted, converting the microwave signal into a digital signal, arranging the acquired digital signal according to a magic square construction rule, generating a magic square code, loading the magic square code onto a laser beam, and transmitting the magic square code to the laser beam. And transmitting the laser beam loaded with the microwave signal to a destination. A mathematical principle of a magic square is utilized, microwave signals to be transmitted are converted into digits, then the digits are arranged in the magic square according to a certain rule, the digits are loaded to light waves through laser beams, transmission of the microwave signals is achieved, the signals are effectively coded and transmitted, the anti-interference capacity of the signals is improved, the microwave signals are loaded to the laser beams, and the transmission efficiency is improved. According to the invention, high-speed and high-bandwidth transmission can be realized, different coding modes can be realized through different magic square construction methods, and the flexibility is very high.

The application discloses a device for plastic welding by using a mechanical cavity homogenization laser, which comprises a laser for emitting a laser beam and transmitting the emitted laser beam into a mechanical homogenization cavity through a plurality of optical fibers; the mechanical homogenization cavity is used for reflecting the laser beams output by the plurality of optical fibers in the cavity, so that the laser beams which do not intersect with each other are superimposed, and energy distribution homogenization is realized; a clamping jig assembly is used for fixing the mechanical homogenization cavity and a plastic welding product; and a driving assembly is used for driving the clamping jig assembly to open and close. The application solves the problems of uneven multi-beam splicing or high machining complexity and machining requirement in the current laser synchronous welding application.

There is provided a multi-clad fiber assembly for reducing and eliminating deleterious laser-contaminant interrelations, and methods of making these assemblies. There is provided an optical connector having contaminants that are shielded from causing detrimental thermal effects, during laser beam transmittion, by preventing laser-contaminant interactions.

To provide a manufacturing apparatus for a display panel, capable of applying a laser beam accurately only to a micro-LED and increasing the uniformity of the applied pressure.SOLUTION: A manufacturing apparatus for a display panel is provided. The manufacturing apparatus for a display panel according to an embodiment includes a support part to which a display substrate is fixed, a mask that defines an opening part corresponding to a transmission region of the laser beam, a pressing part including a pressing member that presses the mask, and a laser irradiation part that is disposed on a front surface of the support part and irradiates the display substrate with laser light through the mask. The mask includes a base layer that transmits the laser light, and a light-blocking pattern layer disposed on the base layer and including the opening part.SELECTED DRAWING: Figure 7

The present invention comprises: a laser module which generates laser beams; a laser beam delivery guide which guides the laser beams, generated by the laser module, along a predetermined path and causes the laser beams to overlap; and a first imaging lens which is disposed between the laser module and the laser beam delivery guide and adjusts the focus of the laser beams emitted from the laser module towards the laser beam delivery guide. Accordingly, the present invention can ensure a uniform energy distribution of laser beams having a predetermined intensity or higher.

The invention relates to the technical field of ultraviolet lasers, and discloses a packaging method, device and equipment for a frequency doubling cavity of an ultraviolet laser and a medium. The method comprises the following steps: providing a laser frequency doubling cavity shell and a laser frequency doubling cavity upper cover; the frequency doubling crystal module and the spectroscope or the reflector are arranged in the laser frequency doubling cavity shell; the laser frequency doubling cavity upper cover and the laser frequency doubling cavity shell are connected in a sealed mode; wherein the light path space transmitted by the laser beam is the space corresponding to the transmission path of the laser beam in the frequency doubling cavity, the space occupied by the frequency doubling crystal module is the space actually occupied by the frequency doubling crystal, the assembling structure of the frequency doubling crystal and the temperature control system, and the adjustment space is the minimum necessary space meeting the adjustment requirement of a spectroscope or a reflector. Therefore, the volume of the sealed internal space is only the minimum volume for accommodating an optical path and an optical device and necessary adjustment. The internal space of the frequency doubling cavity is precisely designed, so that the volume of gas needing to be cleaned is greatly reduced, the internal gas volume is reduced, and the gas replacement efficiency is remarkably improved.

The invention discloses a long-distance wireless optical fiber energy transmission system and a control method thereof, and belongs to the technical field of wireless energy transmission, and the system comprises a transmitting end system which is used for converting electric energy into laser, and the transmitting end system generates and directionally outputs a laser beam through an integrated laser emission, wavefront regulation and control and pointing control mechanism; the transmission channel is used for transmitting the laser beam to a receiving end in a long-distance environment and maintaining the stability of a transmission path; and the receiving end system is used for receiving the laser beam, outputting electric energy through photoelectric conversion, and managing and distributing the generated electric energy. The system solves the key problems of low efficiency, poor stability, insufficient safety and the like of a traditional laser wireless energy transmission system, and is suitable for wireless energy transmission requirements in various special environments.