Abstract: Provided is a light source device, including a first laser light source group, a second laser light source group, a dichroic mirror, a fluorescence converter, and an emission component. The first laser light source group emits laser light of a first waveband, and the second laser light source group emits laser light of a second waveband and laser light of a third waveband. The dichroic mirror is disposed on light-output sides of the first laser light source group and the second laser light source group, and the fluorescence converter and the emission component are respectively disposed on light-output sides of the dichroic mirror. The dichroic mirror is configured to emit laser light of various wavebands, and the fluorescence converter generates target fluorescence under the excitation of the laser light of the first waveband, and the target fluorescence is reflected by the dichroic mirror to the emission component.

Abstract: A laser source includes a light-emitting assembly, a phosphor wheel, a converging lens group, and a combining component. The combining component is disposed between the light-emitting assembly and the converging lens group. The combining component has a plurality of light reflecting regions and a plurality of laser transmitting regions, and the plurality of light reflecting regions and the plurality of laser transmitting regions are alternately arranged. The plurality of laser transmitting regions are configured to transmit the laser beam emitted by the light-emitting assembly, and the plurality of light reflecting regions are configured to reflect a laser beam reflected by the laser-reflecting region of the phosphor wheel and a fluorescent beam excited by the fluorescence-exciting region of the phosphor wheel toward a beam outlet of the laser source.

Abstract: A projection laser source includes a laser device, a light guide lens group, a first combining lens, and a second combining lens. The light guide lens group is configured to adjust laser beams emitted by the first sub-region and the second sub-region to be emitted towards the first combining lens and the second combining lens, respectively, from a side of the third laser-exit region away from the second laser-exit region. A laser beam emitted by a region other than the first sub-region in the first laser-exit region is emitted to the first combining lens. A laser beam emitted by a region other than the second sub-region in the second laser-exit region and a laser beam emitted by the third laser-exit region are emitted to the second combining lens. The first combining lens and the second combining lens are configured to emit the incident laser beam along the first direction.

Abstract: Provided is a laser light source apparatus, including a laser device and a fly-eye lens component. The laser includes at least two different colors of laser chips. The fly-eye lens component includes a plurality of microlenses arranged in an array. Each of the microlenses extends along a first dimensional direction and a second dimensional direction. A laser spot emitted from the laser device to a light-incident side of the fly-eye lens component has a smaller NA value in a slow axis direction than an NA value of at least one of the microlenses in the first dimensional direction, and has a smaller NA value in the fast axis direction than the NA value of at least one of the microlenses in the second dimensional direction.

Abstract: A laser projection apparatus includes a laser source, an optical engine and a projection lens. The optical engine includes a light homogenizing component. The laser source includes a light-emitting assembly, a combining component, a first lens, a phosphor wheel and a laser dimming component. The combining component includes a reflecting portion and a transmitting portion. The phosphor wheel includes a first region and a second region. The laser dimming component is located between the light-emitting assembly and the phosphor wheel, and configured to increase Etendue of a laser beam emitted by the light-emitting assembly and change a shape of a beam spot provided by the laser beam on the phosphor wheel, so as to make a beam spot provided by the laser beam and the fluorescent beam at a beam inlet of the light homogenizing component matched with a shape of the beam inlet of the light homogenizing component.

Abstract: A laser projection apparatus includes a laser source assembly, a light modulation assembly, and a projection lens. The laser source assembly includes a laser device, a microlens array, a combining component, and a phosphor wheel. The microlens array is configured to increase divergence angles of the plurality of laser beams in a slow axis direction and a fast axis direction, so as to make a ratio of divergence angles of the laser beams diverged by the microlens array in the slow axis direction and the fast axis direction be proportional to a length-width ratio of the light inlet of the light pipe. The combining component is configured to reflect laser beams and a fluorescent beam exiting from the phosphor wheel and transmit the plurality of laser beams emitted by the laser device. The phosphor wheel is configured to reflect the laser beams and be excited to emit the fluorescent beam.

Abstract: A model test device for simulating environmental load and scouring effect on a suction caisson includes a laminar shear box. Multiple scouring pit simulation mechanisms are arranged around the suction caisson inside the laminar shear box, each scouring pit simulation mechanism includes a bracket disposed in the laminar shear box, the bracket is equipped with a telescopic arm connected to a cutting plate, and the cutting plate is curved fan-shaped. When the cutting plates move to positions where they are in contact with an outer wall of the suction caisson, the cutting plates are mutually connected to form a ring surrounding the suction caisson. An inner edge of the ring forms a complete circle attached to the outer wall of the suction caisson, an outer edge of the ring is higher than its inner edge, and the outer edge is located above the saturated soft clay in the water body.

Abstract: A device for simulating suction penetration of suction caisson based on centrifuge model test includes a model box, a suction caisson model in the model box and containing a suction caisson and a connecting rod, a penetration device disposed above the model box and movably connected to the connecting rod, a vacuum system connected to the suction caisson, a lower part of the suction caisson is provided with soil, and an upper part of the soil is provided with a water body. The penetration device includes a guide rail and a drive lever. The drive lever penetrates through the model box and then is connected to an electromagnetic adsorption device, a bottom end of which includes a guide housing, and the connecting rod is inserted into the guide housing. The device can dynamically correct displacement deviation in a suction penetration process, thereby being continuously tested in a centrifugal state.

Abstract: Provided is a laser projection apparatus. The laser projection apparatus includes a light source assembly, a light-modulating assembly, and a projection lens. The light source assembly includes a base plate, a frame, a plurality of light-emitting chips, a metal ring structure, a metal cover plate, and a light-transmitting layer. The frame is disposed on the base plate, and an accommodating space is defined between the base plate and the frame, and a material of the frame is ceramic. The plurality of light-emitting chips are disposed in the accommodating space and configured to emit laser light. The metal ring structure is configured to be fixed to the frame. An outer edge of the metal cover plate is fixed to one side of the metal ring structure distal from the base plate. An edge of the light-transmitting layer is fixed to an inner edge of the metal cover plate.

Abstract: A laser is provided. The laser includes a base plate, a frame, a plurality of light-emitting subassemblies, a plurality of first conductive structures and a second conductive structure. The frame is disposed on the base plate and is configured to form an accommodation space with the base plate, the plurality of light-emitting subassemblies are disposed on the base plate and in the accommodation space, the plurality of first conductive structures are spaced apart at an end of the frame proximal to the base plate, wherein each of the first conductive structures includes a substrate insulated from the base plate and a conductive layer disposed on a surface of the substrate distal to the base plate; and the second conductive structure has one end electrically connected to the conductive layer and another end connected to at least one of the plurality of light-emitting subassemblies.

Abstract: A laser source includes a light-emitting assembly, a phosphor wheel, a converging lens group, and a combining component. The combining component is disposed between the light-emitting assembly and the converging lens group. The combining component has a plurality of light reflecting regions and a plurality of laser transmitting regions, and the plurality of light reflecting regions and the plurality of laser transmitting regions are alternately arranged. The plurality of laser transmitting regions are configured to transmit the laser beam emitted by the light-emitting assembly, and the plurality of light reflecting regions are configured to reflect a laser beam reflected by the laser-reflecting region of the phosphor wheel and a fluorescent beam excited by the fluorescence-exciting region of the phosphor wheel toward a beam outlet of the laser source.

Abstract: Provided is a laser optical path system, including: a laser, a beam combiner, a loop guide assembly, and a fluorescence assembly; wherein a light beam emitted by the laser includes a first light beam passing through the first region and irradiating to the fluorescence assembly, wherein the fluorescence assembly generates a fluorescence upon excitation of the first light beam, and the fluorescence is reflected to the second region by the fluorescence assembly, and is further reflected into a direction towards a light outlet by the second region; and the light beam emitted by the laser further includes a second light beam reflected to the loop guide assembly by the first region, wherein the second light beam is further reflected to the first region by the loop guide assembly, passes through the first region, and irradiates to the direction towards the light outlet in synchronization with the fluorescence.

Abstract: A laser device includes a base plate, a plurality of light-emitting chips, a frame and a collimating lens group. The plurality of light-emitting chips are configured to emit laser beams. The laser beams emitted by the plurality of light-emitting chips each have a first axis and a second axis. The collimating lens group is disposed on a side of the frame away from the base plate, and includes a plurality of collimating lenses. The plurality of collimating lenses correspond to the plurality of light-emitting chips. The collimating lens is configured to reduce a divergence angle of the laser beam incident on the collimating lens, so as to make a reduction of the divergence angle of the laser beam passing through the collimating lens in the first axis less than a reduction of the divergence angle of the laser beam passing through the collimating lens in the second axis.

Abstract: A laser projection apparatus includes a laser source, an optical engine and a projection lens. The optical engine includes a light homogenizing component. The laser source includes a light-emitting assembly, a combining component, a first lens, a phosphor wheel and a laser dimming component. The combining component includes a reflecting portion and a transmitting portion. The phosphor wheel includes a first region and a second region. The laser dimming component is located between the light-emitting assembly and the phosphor wheel, and configured to increase Etendue of a laser beam emitted by the light-emitting assembly and change a shape of a beam spot provided by the laser beam on the phosphor wheel, so as to make a beam spot provided by the laser beam and the fluorescent beam at a beam inlet of the light homogenizing component matched with a shape of the beam inlet of the light homogenizing component.

Abstract: A laser projection apparatus includes a laser source assembly, an optical engine and a projection lens. The laser source assembly includes a laser device and a combining lens group. The laser device includes a first laser-exit region emitting laser beams of first color, a second laser-exit region emitting laser beams of second color, and a third laser-exit region emitting laser beams of third color. The combining lens group includes a plurality of combining lenses and a beam spot adjustment structure. The beam spot adjustment structure is disposed in beam paths of the laser beams of first color and the laser beams of second color before being combined with the laser beams of third color, and the beam spot adjustment structure is configured to increase a divergence angle of at least one of the laser beams of first color or the laser beams of second color.