20 results about "Green laser light" patented technology

The invention provides an illumination system and projection equipment. The lighting system comprises a light source module, a wavelength conversion device, a first light guide assembly, a second light guide assembly and a micro-lens array module. The light source module is used for providing a plurality of green and blue laser beams. The wavelength conversion device is used for generating fluorescent light beams. The first light guiding assembly and the second light guiding assembly are used for guiding a fluorescent light beam and a green laser light beam respectively. The fluorescent light beams form fluorescent light spots on the first area of the first side face of the micro-lens array module. The plurality of green laser beams form a plurality of green light spots on a second area of the first side surface of the micro-lens array module. The first region is adjacent to the second region. The illumination system and the projection equipment provided by the invention avoid energy loss and have good light uniformity.

The invention discloses a control method for determining a cleaning strategy of a mobile robot and related equipment. The method comprises the following steps: when a green laser lamp emits green laser to a target area, acquiring a colored laser image formed by irradiation of the green laser in the target area through a camera; processing the colored laser image based on a preset detection model to obtain object detection information of the target area, the object detection information including an object category and an object position; and under the condition that the object category is liquid and / or dust, the mobile robot is controlled to go to the object position to mop the floor. According to the method, the smudginess detection accuracy of the mobile robot is improved, and the mobile robot can clean the indoor space more cleanly and more intelligently.

The invention discloses a fluorescence immunodetection analyzer and a detection analysis method thereof. The analyzer comprises a sheath flow pool which is vertically arranged, red and green laser excitation light sources which are horizontally arranged on the two sides of the sheath flow pool in the X-axis direction, and double independent light paths which are arranged on the two sides of the sheath flow pool in the Y-axis direction. A red laser light path separates fluorescence into three paths of signals of 730nm, 670nm and residual fluorescence through a series-connected dichotomy mirror group; the green laser light path collects diffuse reflection light. The four paths of optical signals are converted into voltage signals by four detectors, temperature compensation units integrated in the detectors correct the signals in real time based on a pre-calibrated dark current-temperature relation curve, and temperature drift is suppressed. And the signal processing system calls a pre-established signal model library to carry out comprehensive calibration and synchronous analysis on multi-channel signals, so that accurate distinguishing and counting of different fluorescent microspheres are realized. According to the invention, the problems of large temperature influence and low detection efficiency in the prior art are solved, and the stability, accuracy and multi-channel consistency of detection are remarkably improved.

The application discloses a laser, a laser light source and a laser projection device, and belongs to the projection display field.The laser comprises a substrate and a plurality of laser units arranged in an array on the substrate.In the application, the laser comprises two rows of laser units, one row of red light laser units for emitting red laser, and the other row of green light laser units for emitting green laser and blue light laser units for emitting blue laser.Under the premise of ensuring the brightness of the laser beam emitted by the laser, the number of laser units in the laser is reduced.Thus, the overall volume of the laser can be effectively reduced, and the volume of the laser projection device integrated with the laser is small.

The invention relates to the technical field of laser, and discloses a high-power yellow-green laser generation method, which comprises the following steps: generating pump light through a first seed source, and generating signal light through a second seed source; after the pump light and the signal light are mixed through the first wavelength division multiplexer, the pump light and the signal light are combined with the light of the first pump source in the beam combiner, and then are subjected to power amplification through the first ytterbium-doped optical fiber to obtain high-power laser; after collimation by the collimator and color separation by the first dichroic mirror, frequency doubling is carried out by the frequency doubling crystal, and finally, high-power yellow-green laser is output by color separation by the second dichroic mirror. The invention discloses an optical fiber laser for generating high-power yellow-green laser, which reduces the number of core devices in an optical path structure, simplifies the optical path structure and control logic, reduces the hardware cost and assembly debugging cost of equipment, and improves the production efficiency. The stimulated Brillouin threshold value of the laser is effectively improved, broadening in the spectrum amplification process is restrained, and meanwhile the stable and good time-domain characteristic can be kept.

The present invention provides a phosphor wheel, light source device, and projector that can improve light utilization efficiency and reduce laser speckle. [Solution] A phosphor wheel 23 having phosphor regions 23r and 23g that convert the wavelength of blue laser light, and which rotates in response to the drive of a rotation mechanism, comprising a red phosphor region 23r that converts blue laser light to red laser light, a green phosphor region 23g that converts blue laser light to green laser light, and a transparent region 23b that transmits blue laser light, the transparent region 23b transmitting blue laser light through a microlens array.

A projection light source (100) and a projection apparatus. The projection light source (100) comprises a three-color laser light source (101); a red LED light source (102); a blue laser light source (103); a phosphor plate (104) arranged on a light-emitting side of the blue laser light source (103) and used for converting blue laser light into green fluorescence; and a compound-eye module (105) arranged on light-emitting sides of the three-color laser light source (101), the red LED light source (102) and the phosphor plate (104), the compound-eye module (105) being used for homogenizing red laser light, blue laser light, green laser light, red light and green fluorescence and then transmitting same.

This invention relates to the field of power equipment protection technology, specifically to a comprehensive intelligent laser bird deterrent device and method based on AI vision. The device includes an image acquisition module for acquiring environmental images and transmitting them to an AI vision analysis module. This AI vision analysis module, based on a lightweight target detection model and multi-target tracking algorithm, identifies, tracks, and predicts the flight trajectories of birds in the images, generating analytical data including location, speed, number, and behavior type. A laser emission module projects green laser dots at the target birds based on the analytical data. A high-intensity light module emits strong light towards the target birds when the laser emission module's deterrent efficiency is insufficient. This bird deterrent device achieves eco-friendly bird deterrence by integrating artificial intelligence visual recognition, a multimodal bird deterrent execution unit, and an adaptive collaborative control strategy. It eliminates physical harm to birds, establishes an active identification and response mechanism, improves the long-term effectiveness of bird deterrence, reduces reliance on manual labor, and lowers operation and maintenance costs.

To suppress decrease in light flux value of display light when performing derating of a laser diode as a light source in a projector.SOLUTION: A projector has a light source part 62, a light source drive part 50, and a display control device 42 including a control part 44. The control part performs normal control mode for adjusting each light output so as to satisfy white balance when a temperature of a red laser diode can be suppressed to an allowable temperature or less, and when the temperature cannot be suppressed to the allowable temperature or less, performs derating for the red laser diode, and increases drive current value of green and blue laser diodes or a green laser diode and increases light output so as to suppress decrease in light flux value of display light due to decrease in light output of the red laser diode, thereby performing light flux maintenance control mode that prioritizes maintenance of the light flux value of the display light over maintenance of white balance.SELECTED DRAWING: Figure 2

The invention discloses a laser projection device and a wearable device. The laser projection device comprises a laser display assembly; a light combining assembly; the laser display assembly comprises three groups of microcavity laser arrays, each group of microcavity laser array comprises a plurality of laser units, and the laser units in the three groups of microcavity laser arrays have a corresponding relation. The three groups of microcavity laser arrays are respectively used for generating a green laser image, a blue laser image and a red laser image; the light combining assembly is used for combining laser beams emitted by the laser units with corresponding relations to one pixel point, so that the green laser image, the blue laser image and the red laser image are combined into a target laser image; the controller is electrically connected with the laser display assembly, and the controller is used for receiving the driving signal and controlling the display parameter of each laser unit according to the driving signal; and the lens is arranged on the light emitting path of the light combining assembly, receives the target laser image emitted by the light combining assembly and emits a projection image.

Method for manufacturing a bipolar plate (2), comprising the following steps: - Provision of two steel half-sheets (3, 4), wherein at least one of the two half-sheets (3, 4) has an embossed structure (5), - Construction of a three-dimensional metal structure (7) from a first powder (12) of a metal different from the steel of the half-sheets (3, 4) or from at least two powders (12) of different metals, wherein at least one first powder of the at least two powders (12) is selected to be different from the steel of the half-sheets (3, 4), wherein the metal is selected from the group comprising titanium, titanium alloys, nickel, nickel alloys, chromium, chromium alloys, ferrochrome alloys, copper, copper alloys, gold, gold alloys, platinum, platinum alloys, silver, silver alloys, iridium, iridium alloys, rhodium, rhodium alloys, ruthenium, ruthenium alloys, palladium, palladium alloys, on a first half-sheet (3) of the two half-sheets (3, 4) by means of a laser (10) with green laser light and consequently a wavelength in the range of 495 nm to 550 nm, wherein the first Powder made from the metal copper is used.wherein, when using at least one further different second powder, a further laser in the form of an infrared laser is used to build up the three-dimensional metal structure (7), and , - Forming a materially bonded connection of the 3D metal structure (7) with a second half-sheet (4) of the two half-sheets (3, 4) using the same laser (10) with green laser light, wherein the half-sheets (3, 4) are joined to form a bipolar plate (2).

This invention relates to the field of laser technology and discloses a method for generating high-power yellow-green laser. The method involves generating pump light from a first seed source and signal light from a second seed source. The pump light and signal light are mixed by a first wavelength division multiplexer, then combined with the light from the first pump source in a beam combiner. The combined beam is then amplified by a first ytterbium-doped fiber to obtain high-power laser light. After collimation by a collimator and dichroism by a first dichroic mirror, the laser light is frequency-doubled by a frequency-doubling crystal and finally dichroically separated by a second dichroic mirror to output high-power yellow-green laser light. This invention discloses a fiber laser for generating high-power yellow-green laser light, which reduces the number of core components in the optical path structure, simplifies the optical path structure and control logic, and reduces the hardware cost and assembly / debugging cost of the equipment. It effectively improves the stimulated Brillouin threshold of the laser and suppresses broadening during spectral amplification, while maintaining stable and good temporal characteristics.

This utility model discloses a laser, comprising: a laser source for emitting a fundamental frequency beam; an optical fiber splitter for splitting the fundamental frequency beam into at least two fundamental frequency sub-beams for output, wherein the at least two fundamental frequency sub-beams are emitted in parallel; multiple frequency doubling units located on the propagation paths of each fundamental frequency sub-beam for receiving the fundamental frequency sub-beams and outputting frequency-doubled sub-beams; at least one reflection unit located on the propagation paths of some of the frequency-doubled sub-beams for reflecting the frequency-doubled sub-beams and outputting reflected frequency-doubled sub-beams, wherein the polarization directions of the reflected frequency-doubled sub-beams and the frequency-doubled sub-beams are perpendicular; and at least one polarization combining unit located on the propagation paths of the frequency-doubled sub-beams and the reflected frequency-doubled sub-beams for combining the frequency-doubled sub-beams and the reflected frequency-doubled sub-beams and outputting a green laser beam. By setting multiple frequency-doubled sub-beams and reflected frequency-doubled sub-beams and using the polarization combining unit for polarization combining, a high-brightness green laser beam is output.

Provided is an optical displacement sensor in which a housing serving as a head is reduced in size. A relay cable extending from the head is integrated with the body. The head part is mainly responsible for projecting light to and receiving light from an object to be detected, and the body is composed of a power supply circuit, a display part and an operation part. The head comprises a green laser light source and emits green laser to form light spots on the surface of an object to be detected.

This application belongs to the field of thin-film solar cell technology and discloses a laser scribing light box for thin-film solar cells, including a box body, an infrared control module, and a green light control module. The end of the box body has an input terminal for inputting infrared and green laser light; the bottom of the box body has an output terminal; the top wall inside the box body has a first lifting unit and a second lifting unit, with the infrared control module connected to the first lifting unit and the green light control module connected to the second lifting unit. This laser scribing light box integrates the infrared and green light control modules into one box body. The infrared and green light control modules are raised and lowered relative to the input terminal at the end of the box body to achieve switching between infrared and green laser light. This also allows for a more compact layout, avoiding interference between the infrared and green light control modules and further saving space. In addition, this application also discloses a laser scribing device for thin-film solar cells.

This invention provides a light source for projectors that can broaden the color gamut of projected images and improve color reproduction. [Solution] The spectroscopic element 4 spectrally separates the red laser light R, green laser light G, and blue laser light B emitted from the red laser light source 1R, green laser light source 1G, and blue laser light source 1B, respectively, and emits them in different directions. The diffusion member 62 is formed in one region of the base member 61 and diffuses and reflects the incident red laser light R and green laser light G. The fluorescent / diffusing member 63 is formed in another region of the base member 61 and includes a phosphor that is excited by a portion of the incident blue laser light B to emit yellow light Y, and a diffusion material that diffuses and reflects the other portion of the blue laser light B. The focusing element 5 mixes the red laser light R and green laser light G reflected by the diffusion member 62, the yellow light Y emitted from the fluorescent / diffusing member 63, and the blue laser light B reflected by the fluorescent / diffusing member 63 and emits it as white light W.

Provided is an optical displacement sensor using a head as a housing miniaturization. A relay cable extending from the head is integrated with the body. The head is mainly responsible for projecting light to an object to be detected and receiving light from the object to be detected, while the body is composed of a power supply circuit, a display portion, and an operation portion. The head includes a green laser light source and emits green laser light to form a light spot on the surface of the object to be detected.

A laser light synthesis device (100) according to the present disclosure comprises: a first input-side optical waveguide (10), a second input-side optical waveguide (11), and a third input-side optical waveguide (12) each having one end located on an input side; an output-side optical waveguide (13) where the respective other ends of the input-side optical waveguides are joined together as one; a red laser light source (20), a green laser light source (21), and a blue laser light source (22) respectively disposed on the one end side of the input-side optical waveguides (10, 11, 12); and a first surface-emitting laser (31) provided on an upper surface side of the first input-side optical waveguide (10) and including a photonic crystal for emitting red laser light into the first input-side optical waveguide (10).

An ophthalmic laser treatment delivers patterned laser energy to an eye of a patient. A pattern-scanning laser device of the laser treatment system includes a laser module, a scanning module and delivery optics. The laser module generates laser energy (e.g. via a green laser diode), which is directed to the scanning module via a fiber optic cable. The scanning module produces the patterned laser energy by reflecting the laser energy into the delivery optics at different angles via a dielectric MEMS scanning mirror. The delivery optics includes an F-theta lens, a motorized and wirelessly-controlled spot-size selector module, and a focusing lens. A mobile computing device receives parameter information via a graphical user interface or voice control and sends the parameter information to the pattern-scanning laser device. In response to receiving activation signals from an activation unit, the pattern-scanning laser device emits the patterned laser energy based on the parameter information.

An illumination system and a projection apparatus are provided. The illumination system includes a light source module, a wavelength conversion device, a first light guiding assembly, a second light guiding assembly and a microlens array module. The light source module is configured to provide a plurality of green and blue laser beams. The wavelength conversion device is configured to generate a phosphor light beam. The first light guiding assembly and the second light guiding assembly are configured to respectively guide the phosphor light beam and the green laser beams. The phosphor light beam forms a phosphor light spot on a first region of a first side surface of the microlens array module. The plurality of green laser beams form a plurality of green light spots on a second region of the first side surface of the microlens array module. The first region is adjacent to the second region.