24 results about "Red laser light" patented technology

The invention discloses projection equipment, and belongs to the technical field of projection. The projection equipment comprises a laser light source, an LED light source, a light combining mirror group, a light machine device and a projection lens. After the projection equipment is applied in the vehicle, the color of the first kind of laser emitted by the laser light source is red laser, so that the light emitting power of the light emitting unit used for emitting the first kind of laser in the laser light source is low and the efficiency of the first kind of laser emitted by the laser light source is low under the condition that the temperature of the environment where the projection equipment is located is high. The color of the LED light emitted by the LED light source in the projection device is the same as the color of the first type of laser emitted by the laser light source, and the light emitting power of the LED light source is less affected by the environment temperature. Therefore, by arranging the LED light source, the first type of laser emitted by the laser light source can be compensated.

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.

A light emitting device (1) comprising: an element (2) comprising a bulk low scattering material, the element comprising opposite first and second light incoupling surfaces (21, 22) and a circumferential surface (23) extending between the first and second light incoupling surfaces; at least one red laser diode (3) configured to emit red laser light (31) and arranged at one of the light incoupling surfaces such that the red laser light is coupled into the element through said one of the first and second light incoupling surfaces; a collimator (4) arranged and configured to collimate the red laser light (31); at least one LED (5) configured to emit LED light, the LED being arranged at one of the light incoupling surfaces such that the LED light is coupled into the element through said incoupling surface, and the scattering material being configured to make the path of the laser light visible.

The invention provides a light generating system (1000) comprising a first light generating device (1100), a second light generating device (1200), a luminescent material (200), one or more diffusers (710) and a control system (300); wherein the first light generating arrangement (1100) comprises a plurality of first light generating devices (110) configured to generate first device light (111); wherein the first light generating arrangement (1100) comprises a first laser set comprising the plurality of first light generating devices (110); wherein the first light generating device (110) comprises a first laser diode; and wherein the second light generating arrangement (1200) comprises a plurality of second light generating devices (120); wherein the plurality of second light generating devices (120) comprises (a) one or more primary second light generating devices (1210) configured to generate primary second device light (1211), and (b) one or more secondary second light generating devices (1220) configured to generate secondary second device light (1221); wherein the second light generating device (1200) comprises a second laser set comprising the plurality of second light generating devices (120); wherein the plurality of second light generating devices (120) comprises a primary second laser diode and a secondary second laser diode.

This invention discloses a slag volumetric flow rate measuring device and method. The slag volumetric flow rate measuring device includes: a binocular camera, with one camera on each side of the center of the slag discharge direction, and the two cameras arranged front and back in the slag discharge direction; a green laser source for emitting green laser lines; a red laser source for emitting red laser lines; one of the red and green laser lines is parallel to the slag discharge direction, and the other is perpendicular to the slag discharge direction; each camera of the binocular camera acquires a slag discharge image simultaneously displaying both green and red laser lines. This invention's measuring device uses two lasers (red and green) and a binocular camera. The cross-sectional area of ​​the slag on the conveyor belt is calculated using the R-channel image, and the displacement is calculated by cross-correlation using the matching results of two consecutive frames of the G-channel image. The conveyor belt speed is calculated by combining the sampling time, and the cross-sectional area and speed are coupled to achieve online detection of slag volumetric flow rate.

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.

The application discloses a laser light source device and a projection device, comprising: a laser emitting three primary color lasers and a light combining prism located on the light emitting side of the laser. The light combining prism comprises a light combining surface and a plurality of connecting surfaces. Red laser, blue laser and green laser emitted by the laser are incident to the light combining surface of the light combining prism. The red laser is directly reflected by the light combining surface, while the blue laser and the green laser are incident to the inside of the light combining prism through the light combining surface, repeatedly reflected in the inside of the light combining prism, the optical path of the blue laser and the green laser is increased, and finally emitted at the position of the red laser incidence. Therefore, not only the three color lasers are combined, but also the difference between the divergence degree of the blue laser and the green laser after the optical path is increased and the divergence degree of the red laser is reduced, so that the difference between the combined light spot sizes of the three color lasers is reduced, and the uniformity of the combined light spot is improved.

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.

A method and device for generating 260 nm wavelength low-noise all-solid-state ultraviolet laser, 808 nm laser pumps Nd:YVO4 crystal to generate 914 nm wavelength linearly polarized stimulated radiation fluorescence, the fluorescence is amplified and oscillated in the first laser oscillation cavity and realizes longitudinal mode compression by combining phase modulation longitudinal mode filter, generates 914 nm wavelength low-noise linearly polarized near-infrared laser, and is converted into 457 nm wavelength low-noise linearly polarized blue laser by intracavity frequency doubling; the 457 nm low-noise linearly polarized blue laser pumps Sm:YLF crystal in two directions to generate 605 nm wavelength linearly polarized orange-red stimulated radiation fluorescence, the fluorescence is amplified and oscillated in the second laser oscillation cavity and forms 605 nm wavelength low-noise linearly polarized orange-red laser after phase modulation filtering; the remaining 457 nm wavelength low-noise linearly polarized blue laser and the 605 nm wavelength low-noise linearly polarized orange-red laser of the pumped Sm:YLF crystal are nonlinearly frequency-converted by intracavity sum frequency, the polarization controller is used to optimize the polarization matching degree of the two lasers to improve the sum frequency efficiency, and 260 nm wavelength low-noise all-solid-state ultraviolet laser output is obtained.

The application discloses a light source device and a projection system, which comprise a laser light source array, a dichroic mirror, a dynamic optical component, a fluorescent conversion component and a heat dissipation component. The fluorescent conversion component adopts a fixed fluorescent conversion component, which can greatly improve the system reliability, has no mechanical movement and can reduce the structure design size of the light source device. The fluorescent material is changed from the original annular area to a small square or circular area, which greatly reduces the use amount of the fluorescent material and reduces the material cost. In addition, the fixed fluorescent conversion component can be centrally cooled without the dynamic limitation of high-speed rotation. In the three primary colors emitted by the light source device, the red light is mixed light of red fluorescent light and red laser light, and the green light is mixed light of green fluorescent light and green laser light. Since the laser has a large color gamut, the color performance of the projection system can be improved.

The application provides a kind of intelligent pedestrian crossing device, it is related to traffic facilities field, including: electric control box and vertical support piece;Electric control box includes: LED screen, laser radar and laser diffuser;The inside of electric control box is provided with operation controller, and the upper half of the left side wall of electric control box is fixedly installed with laser radar and laser diffuser in an upper and lower interval;Two LED screens are symmetrically inlaid and installed on the front and rear side walls of the electric control box, and the display side of the two LED screens is covered with sealing glass;The laser radar, laser diffuser and two LED screens are electrically connected with the operation controller and carry out data transmission to form an obstacle scanning detection system, and the laser diffuser is used to diffuse red laser warning that there is an obstacle on the sidewalk.The diffusing range of red laser beam of laser diffuser is larger, which can cover most of the area of pedestrian crossing, compared with the prior art of simply using LED screen for warning, the warning range is larger, and the warning effect is better.

A laser projection device (100) and a wearable device. The laser projection device (100) comprises: a laser display assembly (10), wherein the laser display assembly (10) comprises three microcavity laser arrays (101, 101a, 101b, 101c), each microcavity laser array (101, 101a, 101b, 101c) comprises a plurality of laser units (103), there are correspondence relationships between the laser units (103) in the three microcavity laser arrays (101, 101a, 101b, 101c), and the three microcavity laser arrays (101, 101a, 101b, 101c) are respectively used for generating a green laser image, a blue laser image and a red laser image; a light combining assembly (20), the light combining assembly (20) being used for combining laser beams emitted by laser units (103) having a correspondence relationship to one pixel point, so as to combine the green laser image, the blue laser image and the red laser image into a target laser image; a controller, the controller being electrically connected to the laser display assembly (10), and the controller being used for receiving a driving signal and controlling a display parameter of each laser unit (103) on the basis of the driving signal; and a lens (30), the lens (30) being arranged on a light emitting path of the light combining assembly (20), and the lens (30) receiving the target laser image emitted from the light combining assembly (20) and emitting a projection image.

The utility model discloses adhesive tape coating equipment with a coating detection mechanism, which comprises a coating machine and two coating frames used for supporting the coating machine, a detection frame is fixedly arranged on one of the coating frames, an adhesive tape is arranged in the coating machine, a detection lamp bank is fixedly arranged on the inner side of the detection frame, and the detection lamp bank is fixedly arranged on the inner side of the detection frame. A plurality of laser heads are fixedly installed on the detection lamp bank, a light gathering shell is fixedly arranged on the inner side of the detection frame, the upper end of the light gathering shell is arranged in an inclined mode, and a light inlet hole for light rays of the laser heads to enter is formed in the upper end of the light gathering shell. According to the utility model, the plurality of laser heads are arranged, and the principle of light beam irradiation is utilized, so that when the surface of glue is flat, a red laser beam irradiates vertically downwards, and when the surface of the glue is uneven, the red laser beam is refracted due to contact with an irregular surface, and the red laser beam inclines; therefore, the coating quality of glue on the adhesive tape is obtained.

The invention provides a lighting system mixing three-color pure laser and fluorescent powder and a projection device applying the lighting system. The lighting system is favorable for improving the phenomenon of laser speckles and comprises a laser light source module, a wavelength conversion piece, a partition dichroic mirror and a light equalizing assembly. The laser light source module is used for providing blue, green and red laser beams. The wavelength conversion piece is located on a transmission path of the three-color laser beam, and the wavelength conversion piece is used for reflecting the three-color laser beam and converting the blue laser beam into an excited laser beam. The partition dichroic mirror is located on a transmission path of the three-color laser beam and the excited light beam and is used for reflecting at least one part of the three-color laser beam and the excited light beam from the wavelength conversion piece. The light uniformizing assembly is located on a transmission path of at least one part of the three-color laser beam and the excited light beam and used for receiving and uniformizing at least one part of the three-color laser beam and the excited light beam from the partition dichroic mirror so as to provide an illumination beam.

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.

The application protects a light source system, comprising: a first light module, the first light module comprising a first light source and a second light source, the first light source being used for emitting first light, and the second light source being used for emitting second light; a second light module, the second light module comprising a third light source, the third light source being used for emitting third light; and a light combining module, the light combining module being used for combining the first light, the second light and the third light, wherein the optical etendue of the first light and the second light is greater than the optical etendue of the third light, and the third light is red laser light. Since the first light module and the second light module with different optical etendues are used, and the third light is red laser light, the light source system can emit higher brightness in a very small volume, and compared with a wavelength-combining scheme, the design difficulty and manufacturing difficulty of optical elements in the light combining module are reduced.

1. Name of the product in this design: Mini flashlight (with red laser light at the tail). 2. Purpose of this design: for handheld lighting. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model provides a light supplement control system for plant growth. The light supplement control system comprises a power supply unit, a main control unit, a communication unit and a light unit, the upper computer end or the APP end is in communication connection with the control unit through the communication unit; the light part comprises a plurality of first laser lamps used for emitting red laser and a plurality of second laser lamps used for emitting blue laser, and the light part is in communication connection with the control module. According to the utility model, a user can set the illumination intensity of the first laser lamp and the illumination intensity of the second laser lamp through the upper computer terminal or the mobile phone APP terminal, the communication module sends parameters set by the user to the main control unit, and the main control unit generates control signals according to the set parameters and controls the first laser lamp and the second laser lamp to emit light. The luminous intensity of the first laser lamp and the second laser lamp is adjusted by controlling the working current of the first laser lamp and the second laser lamp, so that the light intensity ratio of red and blue light spectral bands is adjusted to meet the requirements of plants in different growth stages on illumination.

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).

A 260nm-wavelength low-noise all-solid-state ultraviolet laser generation method and device are characterized in that 808nm laser pumps Nd: YVO4 crystal to generate 914nm-wavelength linear polarization stimulated radiation fluorescence, the fluorescence is oscillated and amplified in a first laser oscillation cavity, longitudinal mode compression is realized by combining with a phase modulation longitudinal mode filter, 914nm-wavelength low-noise linear polarization near-infrared laser is generated, and the wavelength of the 914nm low-noise linear polarization near-infrared laser is converted into 914nm-wavelength low-noise all-solid-state ultraviolet laser. The laser is converted into low-noise linear polarization blue laser with the wavelength of 457nm through intra-cavity frequency doubling; the 457nm low-noise linearly polarized blue laser bidirectional end face pumping Sm: YLF crystal generates 605nm wavelength long-line polarized orange red stimulated radiation fluorescence, and the fluorescence is subjected to oscillation amplification and phase modulation filtering in the second laser oscillation cavity to form 605nm wavelength low-noise linearly polarized orange red laser; non-linear frequency conversion is carried out on the remaining low-noise linearly polarized blue laser with the wavelength of 457 nm and the low-noise linearly polarized orange red laser with the wavelength of 605 nm of the pump Sm: YLF crystal through intra-cavity sum frequency, the polarization matching degree of the two laser beams is optimized through a polarization controller so as to improve the sum frequency efficiency, and the low-noise all-solid-state ultraviolet laser output with the wavelength of 260 nm is obtained.

The application protects a light source system, comprising: a first light module, the first light module comprising a first light source and a second light source, the first light source being used for emitting first light, and the second light source being used for emitting second light; a second light module, the second light module comprising a third light source, the third light source being used for emitting third light; and a light combination module, the light combination module being used for combining the first light, the second light and the third light, wherein an optical etendue of the first light and the second light is greater than an optical etendue of the third light, the third light is red laser light, a light path distance from the third light source to an exit opening of the light combination module is greater than a light path distance from the first light source to the exit opening of the light combination module, and the light path distance from the third light source to the exit opening of the light combination module is greater than a light path distance from the second light source to the exit opening of the light combination module. Compared with a wavelength combination scheme, the design difficulty and the manufacturing difficulty of optical elements in the light combination module are reduced.