114 results about "Fast axis" patented technology

The invention provides an automatic coupling device for a fast-axis beam of a micro-channel laser stack array, and relates to the technical field of semiconductor lasers. The device comprises an optical platform, and the optical platform is provided with a stack array adjusting subassembly, a power-up subassembly, a UV curing subassembly, a lens adjusting subassembly, a dispensing subassembly, a near-field detection subassembly and a far-field detection subassembly. The stack array adjusting part is used for installing the stack array, and the power-up part is used for powering up the stack array. And the UV curing subassembly is used for curing the ultraviolet glue. And the lens adjusting subassembly and the dispensing subassembly are respectively used for adjusting the position of the fast axis collimating lens and dispensing. The SAC lens is arranged on a sliding plate of the dispensing subassembly through a fixing rod, during coupling, laser emitted by the micro-channel laser sequentially passes through the fast axis collimating lens and the SAC lens and then is divided into a far-field light beam and a near-field light beam by the beam splitter prism, the near-field light beam enters the near-field detection subassembly, and the far-field light beam enters the far-field detection subassembly. The device effectively solves the problems of low production efficiency, poor coupling precision and the like in the existing coupling mode.

The application provides a laser etching device and method for large-format and large-size samples, and aims to solve the technical problem that the laser processing mode of linkage of the fast axis and the slow axis of the existing galvanometer causes the non-uniform processing speed of different pattern segments due to the speed difference of the fast axis and the slow axis, and forms the splicing trace with inconsistent response speed when facing complex filled patterns. The laser etching method for large-format and large-size samples provided by the application is realized by the laser etching device for large-format and large-size samples composed of a laser scanning part, a sample movement part, a bracket and a controller, and the method of combining "trajectory decomposition + multi-layer filling" is adopted to realize the laser etching processing without splicing traces, thereby avoiding the splicing trace problem caused by the inconsistent speed response of the traditional linkage system of the fast axis and the slow axis, and ensuring the reliability and consistency of the large-area etching processing.

The invention belongs to the technical field of fiber-optic gyroscopes, and particularly relates to an acceleration-based fiber-optic gyroscope vibration error compensation method and an inertial measurement unit. Based on normal strain, optical fiber dielectric impermeability tensor variable quantity, refractive index variable quantity of light in the fast axis direction and phase variable quantity corresponding to a sensitive axis of an optical fiber gyroscope, quantitative relations between the phase variable quantity and the fast axis direction of the optical fiber and between the phase variable quantity and the length of a micro-section optical fiber are established, and the equivalent value of the stress borne by the optical fiber and the phase difference of an optical fiber ring is obtained; the linear relation between the phase difference equivalent value and the angular velocity to be compensated of the fiber-optic gyroscope is determined, the relation of converting the vibration acceleration to the phase to be compensated is established, and the required compensation coefficient is calibrated by combining a sinusoidal vibration test to compensate the vibration error of the fiber-optic gyroscope. According to the invention, vibration error compensation of the fiber-optic gyroscope can be realized without adding extra devices, and the real-time performance and accuracy of error compensation are improved.

The invention relates to the technical field of image recognition and search, and discloses a surveying and mapping device capable of automatically searching a target, which comprises a base, surveying and mapping equipment is arranged at the top of the base, a searching mechanism is arranged at the top of the surveying and mapping equipment, the searching mechanism comprises a supporting block, and the supporting block is fixedly connected to the front side of the top of the surveying and mapping equipment. A semiconductor laser is installed on the left side of the supporting block, an emission lens is fixedly connected to the right side of the supporting block, and a fixing plate is fixedly connected to the right side of the top of the surveying and mapping device. According to the invention, the transmitting lens is matched with the transmitting cylindrical mirror, an elliptical Gaussian beam emitted by the semiconductor laser is converted into a fan-shaped line light source with uniform energy distribution by adopting a means of combining slow axis collimation and fast axis beam expansion, and a specified search angle is covered; the problems of non-uniform divergence of the infrared light source in the vertical direction and low light energy utilization rate in the prior art are avoided.

The invention discloses an OLED display screen assembly, a streaming media rearview mirror and a processing method.The OLED display screen assembly comprises a base material, an OLED display screen body and a reflective polarizer which are sequentially arranged from inside to outside in the stacking direction; the OLED display screen body comprises an anode layer arranged close to the base material, a cathode layer arranged close to the reflective polaroid and a light-emitting layer arranged between the anode layer and the cathode layer. A 1 / 2 wave plate is arranged on the side, close to the light-emitting layer, of the anode layer, and efficient polarization conversion and recycling of S light reflected by the reflective polaroid can be achieved. When the reflected S light penetrates through the 1 / 2 wave plate twice, the polarization state of the S light is rotated by 90 degrees through the 45-degree fast axis design to be converted into P light, the P light is transmitted in the forward direction after being reflected by the anode layer and finally penetrates through the reflective polaroid, the problem that the S light is repeatedly reflected and absorbed by the reflective polaroid in a traditional framework is solved, the transmittance of visible light on the reflective polaroid is effectively improved, and the service life of the S light is prolonged. And the display brightness of the streaming media rearview mirror is obviously enhanced.

This application discloses a method and related apparatus for obtaining a phase retardation map and a fast axis orientation map of the cornea. The method includes inputting a preset polarization state into a metasurface polarization analyzer to obtain polarization measurement data output by the metasurface polarization analyzer; solving for polarization state matrix parameters based on the polarization measurement data; and decomposing the polarization state matrix parameters to obtain a phase retardation map and a fast axis orientation map of the cornea. Using this application embodiment, subtle microstructural changes in the cornea can be captured with high sensitivity, compensating for the lack of quantitative analysis methods in traditional slit-lamp examinations, while effectively overcoming the problem of insufficient accessibility caused by the large size and high cost of traditional high-end detection equipment.

The invention discloses a perfect vector and scalar vortex beam generation device, a representation device and a representation method, and the perfect vector and scalar vortex beam generation device comprises a light source system which is used for outputting left-handed and right-handed circularly polarized light; the non-polarization beam splitting flat plate is used for splitting the left-handed and right-handed circularly polarized light into transmission generation light paths; the Q wave plate is located on the generation light path; the phase delay system comprises a reflecting mirror IV located on the generation light path and two quarter-wave plates with adjustable fast axis included angles; the light path conversion system comprises a conical lens and a thin convex lens which are located on the generation light path, and the conical lens is close to the non-polarization beam splitting flat plate; the invention provides a low-cost and easy-to-integrate high-quality perfect vector and scalar vortex beam generation and characterization device and a corresponding method, which are used for realizing efficient generation of perfect vector and scalar vortex beams.

The application discloses a laser shaping module, a projection light source system and a projection device, wherein the laser shaping module comprises a laser device for outputting a laser beam, and the laser beam has different divergence characteristics in a fast axis direction and a slow axis direction; a spherical lens is arranged on the light output side of the laser device; a cylindrical lens module is arranged on the light output side of the spherical lens; the cylindrical lens module has opposite first and second working surfaces along the propagation direction of the laser beam; the cylindrical axis of the first working surface is parallel to the fast axis direction and is used for shaping the laser beam in the slow axis direction; the cylindrical axis of the second working surface is parallel to the slow axis direction and is used for shaping the laser beam in the fast axis direction; and a pump light source is used for receiving the shaped laser beam and is pumped and excited under the action of the laser beam. The application compensates for the difference between the divergence characteristics of the laser beam in the slow axis direction and the fast axis direction by arranging the cylindrical lens module, thereby improving the quality of the pump beam and the pumping efficiency.

A polarizer applied for a viewing side of a display is disclosed. The polarizer comprises a polarizing layer with an absorption axis, and a protective film disposed on the viewing side surface of the polarizing layer. The protective film includes a birefringent substrate adjacent to the polarizing layer having a birefringence difference not greater than 0.10 and having a slow axis and a fast axis perpendicular to each other, wherein the slow axis is parallel to the absorption axis of the polarizing layer, and an interference elimination layer disposed on a display side surface of the birefringent substrate, wherein the interference elimination layer has a diffusing layer disposed on the birefringent substrate, and a refractive-index-matching layer disposed on the diffusing layer, wherein with the total haze of the protective film is between 30% and 75% and the reflectivity of the protective film satisfies the relationship (RSCI−RSCE)≤1.0% and RSCE / (RSCI−RSCE)≥1.6, wherein RSCI is an average reflectivity of diffuse component and specular component (specular component included, SCI) of the protective film, and RSCE is an average reflectivity of diffuse component (specular component excluded, SCE) of the protective film.

The application provides a special mirror ring structure-based interferometric fiber-optic gyroscope, which comprises a light source, a polarizer, a coupler, two loopers, two Y waveguides, a signal generator, a 2-in-2-out mirror fiber ring, two photoelectric detectors and a signal joint demodulation module; wherein the two equal-length polarization maintaining optical fibers of the 2-in-2-out mirror fiber ring are both fused at the middle point with the fast axis at 90 degrees, and when each polarization maintaining optical fiber is fused with the Y waveguide tail fiber, one end is fused with the fast axis at 0 degrees and the other end is fused with the fast axis at 90 degrees. In the fiber-optic gyroscope, the light is no longer sent into two polarization channels of the same fiber ring through a polarization beam splitter and combiner, but is fused with two spatial mirror fiber rings at 0 degrees and 90 degrees through two Y waveguides, so that the radial magnetic field phase error caused by the Faraday effect is suppressed, and the temperature phase error caused by the Shupe effect can be compensated by joint demodulation of the electric signals of the two photoelectric detectors.

The utility model discloses a semiconductor laser device which comprises a pump light module and a shaping assembly. The pump light module is used for outputting a collimated light beam; the shaping assembly is arranged on an output light path of the collimated light beam and comprises a deformation prism and a focus lens which are arranged in sequence. The deformation prism is used for correcting the collimated light beam, so that the sizes of light spots of the collimated light beam in the slow axis direction and the fast axis direction are consistent; and the focusing lens is used for focusing the collimated light beam corrected by the deformation prism and reducing a light beam divergence angle. According to the semiconductor laser device, shaping of the collimated light beam in the fast axis direction or the slow axis direction is achieved by arranging the deformation prism in the light path, the production cost is reduced, and the overall integration degree of the device is improved.

A laser assembly (12) of a system (10) includes a first emitter assembly (30a), a second emitter assembly (30b), and a combiner lens (34). The first emitter assembly (30a) generates a first emitter beam (22a) that is directed along a first emitter axis (32a) at a beam intersection area (31). The second emitter assembly (30b) generates a second emitter beam (22b) that is directed along a second emitter axis (32b) at the beam intersection area (31). The combiner lens (34) receives and spatially combines the first emitter beam (22a) and the second emitter beam (22b) after the emitter beams (22a) (22b) have intersected at and passed through the beam intersection area (31). The laser assembly (12) includes a laser frame (18); an emitter array (20) that generates a plurality of emitter beams (22); a combiner lens assembly (24) that transforms and combines the plurality of emitter beams (22) into the assembly output beam (14); and a system controller (26) that controls the operation of the laser assembly (12). The combiner lens assembly (24) including combiner lenses (34, 36, 38) has a fast axis, front side focal point (24a), and a fast axis and slow axis, rear side focal point (24b). It is positioned so that its fast axis front side focal point (24a) is approximately at the beam intersection area (31). The optical fiber (16) is positioned so that its inlet facet (16A) is approximately at the fast axis and slow axis, rear side focal point (24b).

This invention discloses a spectral beam combining device for a linear array semiconductor laser, comprising: a fast-axis collimating lens, a slow-axis collimating lens, a first cylindrical transmission lens, and a diffraction grating arranged sequentially along the optical axis of the linear array semiconductor laser; a second cylindrical transmission lens and a first concave mirror group arranged sequentially in the direction of the 0th order diffraction beam of the diffraction grating, and a second concave mirror group arranged in the direction of the 1st order diffraction beam, with the -1st order diffracted light of the diffraction grating serving as the output light; the first and second concave mirror groups adjusting their angles according to the "smile" effect of the linear array semiconductor laser, so that the feedback light returns to the corresponding light-emitting unit of the linear array semiconductor laser to form effective feedback; simultaneously, the curved surface of the first concave mirror group along the fast axis direction of the linear array semiconductor laser converges the diverging beam in the fast axis direction, so that the beam is fed back to the original light-emitting unit, improving the feedback efficiency and enabling the light-emitting unit to achieve stable wavelength locking.

The invention concerns collimation optics for an edge emitting laser device configured as a compact integrated unit. The device simultaneously achieves collimation along both the fast axis and the slow axis of the edge emitting laser. The proposed invention also achieves a reduction in the size and complexity of the required optical elements and allows implementation using wafer level optics processes.

The invention discloses a variable light spot lens structure and laser equipment. The variable light spot lens structure comprises a fixing module (10) and a plurality of replacement modules (20), the fixing module (10) comprises a fixing base (11), a light source (12) arranged in the fixing base (11), a fast axis compression mirror arranged on the light emitting side of the light source (12), and a compression unit (13) fixed to the fixing base (11) and located on the light emitting side of the fast axis compression mirror. The multiple replacement modules (20) are arranged on the light emitting side of the fixing module (10) in a replacement mode, and each replacement module (20) comprises an optical head (21) and a shaping unit. The optical head (21) of each replacement module (20) can be detachably connected with the fixing seat (11) of the fixing module (10); light beams emitted by the light source (12) are subjected to fast axis compression of the fast axis compression mirror and compression of the compression unit (13), then enter the replacement module (20), are shaped by a shaping unit of the replacement module (20) and then are emitted; and the sizes of light spots obtained by the light beams emitted by any two replacement modules (20) on the receiving surface are different. The variable light spot lens structure can output various small-size light spots of different specifications, and the application flexibility of the laser module is improved.

The application relates to a kind of laser beam shaping systems and methods based on optical waveguide, belong to beam shaping technology.It includes semiconductor laser from left to right sequentially arranged, fast axis collimating lens, slow axis collimating lens, beam expander system, focusing lens and optical waveguide;Fast axis collimating lens is plano-convex cylindrical lens, for collimating the fast axis direction of light beam;Slow axis collimating lens is plano-convex cylindrical lens, for collimating the slow axis direction of light beam;Beam expander system includes preceding plano-concave cylindrical lens and following plano-convex cylindrical lens, for expanding the light beam width of slow axis direction to be consistent with the light beam width of fast axis direction;Focusing lens is plano-convex lens, for focusing light beam to optical waveguide input end;The input end section of optical waveguide is rectangle, and the output end section is circular, for shaping rectangular light spot into circular light spot.In the application, light beam is transmitted in optical waveguide efficiently, and gradually shaped into circular light beam through transition structure.

This invention discloses a laser and a laser projection device. The laser includes a metal thermally conductive substrate, multiple light-emitting chips, and multiple reflectors. The light-emitting chips are soldered to the substrate via heat sinks, and the reflectors are glued to the substrate. Each reflector faces the reflective surface of a corresponding light-emitting chip, allowing light emitted from that chip to be emitted in a direction away from the substrate. Each light-emitting chip emits light along a fast axis and a slow axis, wherein the fast axis is perpendicular to the substrate, the slow axis is parallel to the substrate, and the divergence angle of the emitted light along the fast axis is greater than that along the slow axis. Furthermore, the reflective surface is concave, and the beam emitted through the concave surface exhibits a greater contraction in the divergence angle along the fast axis than in the slow axis. The laser of this invention is used for efficiently emitting laser beams and is applied to laser projection devices.

The invention provides a laser ranging device and method. The device comprises a laser, a transmitting optical mechanism, a receiving optical mechanism and a signal processing / control module. A fast axis collimating mirror is integrated in the laser device and collimates a fast axis of laser emitted by the laser device. The emission optical mechanism comprises a cylindrical mirror and a collimation and beam expansion mechanism which are sequentially arranged along the laser propagation direction; the cylindrical mirror collimates the slow axis of the emergent laser, and the collimation and beam expanding mechanism reduces the divergence angle of the laser; the receiving optical mechanism comprises a receiving objective lens and an APD detector which are sequentially arranged in the laser reflection direction. The laser is reflected after irradiating a target, the receiving objective lens converges the reflected laser on a detection target surface of the APD detector, and the APD detector generates an electric signal according to the convergent light and outputs the electric signal to the signal processing / control module; and the signal processing / control module controls laser emission of the laser, and obtains the distance between the laser ranging device and the target according to the time interval between the laser emission moment and the electric signal receiving moment.

The invention relates to a device and method for measuring the beat length of a polarization maintaining optical fiber, and the device comprises a femtosecond optical fiber laser which is used for generating femtosecond pulses; the input end of the to-be-tested optical fiber is connected with the output tail fiber through the first optical fiber flange plate, and the output end of the to-be-tested optical fiber is connected with the input end of the optical fiber polarization beam splitter through the second optical fiber flange plate; and the output end of the optical fiber polarization beam splitter is directly connected to the input port of the spectrum analyzer. According to the method, a femtosecond fiber laser is adopted as a light source, a spectrum analyzer is adopted as detection equipment, and the beat length is measured by analyzing the wavelength corresponding relation of optical solitons on a slow axis and a fast axis of a polarization maintaining fiber. The method has the advantages that the device is simple, the operation is quick, and the repeatability is high. The method for measuring the beat length through cross-polarization Raman scattering is adopted, the light source and the polarization maintaining optical fiber to be measured are connected through the optical fiber flange plate, the consistency of the measurement result is good, the repeatability is high, and the manual operation error is small.

The utility model provides a focal plane full polarization sensing device, including substrate, phase delay layer, polarization detection layer and CCD sensor, the phase delay layer and polarization detection layer are arranged on one side of substrate in proper order, the phase delay layer has a plurality of phase delay zone in array arrangement, and the CCD sensor is arranged in the phase delay zone. The phase delay area comprises 2x < 2 > pixel units in different fast axis directions, the polarization detection layer is in single horizontal orientation, and the phase delay layer and the polarization detection layer are combined to form an elliptical polarization array, so that the simultaneous detection of four elliptical polarized lights is realized. The manufacturing process of the focal plane splitting polarization sensing device based on the metal wire grating is simplified, the manufacturing cost is reduced, efficient polarization imaging of the infrared band can be achieved, and the multi-band compatibility of the device is improved.

The invention discloses an optical lens and an optical assembly, and relates to the technical field of optics, and the optical lens comprises a first surface which is an aspheric cylindrical surface with first focal power in the fast axis direction of a laser beam and is used for compressing a divergent beam in the fast axis direction into a collimated beam; the second surface is an aspheric cylindrical surface with second focal power in the slow axis direction of the laser beam and is used for compressing the divergent beam in the slow axis direction into a collimated beam; wherein the first focal power is formed by a first curvature radius of the first surface in the fast axis direction, the second focal power is formed by a second curvature radius of the second surface in the slow axis direction, and the absolute value of the first curvature radius is smaller than that of the second curvature radius. According to the invention, an excellent light spot shaping effect can be simply, conveniently and reliably realized.

The application discloses a display device and a control method with a multi-view mode switchable display panel, which comprises a light adjusting box and a display box stacked with the light adjusting box; the light adjusting box comprises a first substrate, a second substrate and a first liquid crystal layer, the first substrate is provided with a first view angle control electrode, and the second substrate is provided with a second view angle control electrode; the first substrate is provided with a first polaroid and a first quarter-wave plate, the second substrate is provided with a second polaroid and a second quarter-wave plate, the light transmission axis of the first polaroid is perpendicular to the light transmission axis of the second polaroid, the light transmission axis of the first polaroid is at an angle of 45 degrees with the fast axis of the first quarter-wave plate, and the light transmission axis of the second polaroid is at an angle of 45 degrees with the fast axis of the second quarter-wave plate. The first liquid crystal layer is controlled to deflect at different angles in the vertical direction through the first view angle control electrode and the second view angle control electrode, so that multi-directional view angle switching among the first wide view angle mode, the one-way narrow view angle mode and the second wide view angle mode is realized.

The application discloses a high-power semiconductor laser fiber coupling system based on total reflection and belongs to the technical field of lasers. The system comprises two groups of semiconductor laser array modules, a fast-slow axis collimating mirror array, a dichroic mirror for wavelength beam combining, a reflecting mirror for light path folding, a beam shrinking device and a focusing mirror for coupling light beams into an optical fiber; an isosceles right prism group based on total reflection is used to fill the dark area in the fast axis direction. The wavelengths of the array modules in each group of semiconductor laser array modules are the same, the semiconductor laser fiber coupling system can achieve the purpose of beam shaping and obtain high-power output, and compared with the traditional method, the structure is simple and compact.

The application belongs to the technical field of long-term drift suppression of fiber-optic gyroscope zero bias and scale factor, and particularly relates to a long-term drift suppression method for equivalent sensitive area of a fiber coil. A homogenization, de-homogenization analysis idea and a finite element analysis approach are adopted to establish, verify and calibrate thermodynamic parameters of each non-metallic material of the fiber coil. A mathematical model of long-time drift of circumferential strain, radial strain and three-dimensional stress of a micro-element section of the fiber coil with time, temperature and other environmental conditions is calculated to obtain long-time drift of effective refractive index of each micro-element section. Finally, average long-time drift and dispersion characteristics of the effective refractive index of the fast axis of the fiber coil are obtained, so that long-time drift characteristics of the scale factor of the fiber-optic gyroscope are analyzed. In turn, according to the model, thermodynamic parameters and geometric proportions of each non-metallic material of the fiber coil are optimized to finally realize long-term drift suppression of the equivalent sensitive area of the fiber coil.

An optical functional film for a head-up display according to the present disclosure includes (A) two or more phase difference layers and (B) an adhesive layer. The adhesive layer is adjacent to at least one phase difference layer, and an absolute value of difference between a refractive index of the adhesive layer and a refractive index of the phase difference layer adjacent to the adhesive layer in a direction of a fast axis is less than 0.060.

The utility model provides a fast axis direction compression collimation device of an optical fiber column and a diode, which comprises a high-power semiconductor laser diode, an optical fiber column lens, a laser diode bracket, a lens clamping rear plate, a lens clamping front plate, a laser diode fine tuning frame base and a lens clamping fine tuning frame base, according to the utility model, the spring is driven to compress by moving the lens clamping front plate, and then the optical fiber cylindrical lens is placed on the lens clamping rear plate, so that the optical fiber cylindrical lens is clamped and fixed on the lens clamping rear plate by utilizing the lens clamping front plate to be matched with the spring; and then a laser diode fine tuning frame base and / or a lens clamping fine tuning frame base are / is used for performing fine tuning on the high-power semiconductor laser diode and / or the optical fiber cylindrical lens in five dimension directions, so that the distance between the high-power semiconductor laser diode and the optical fiber cylindrical lens is adjusted to the optimal distance while compression collimation in the fast axis direction is completed.

The utility model discloses a semiconductor laser device which comprises a pump light module, a shaping assembly and a plurality of coupling optical fibers. Wherein the pump light module is used for outputting a single collimated light beam; the shaping assembly is arranged on an output light path of the collimated light beam and comprises a deformation prism and a beam splitting element which are arranged in sequence, the deformation prism is used for correcting the collimated light beam so that the sizes of light spots of the collimated light beam in the slow-axis direction and the fast-axis direction can be consistent, and the beam splitting element is used for splitting the corrected collimated light beam so that the light spots of the collimated light beam can be obtained. And each sub-light beam is emitted from the beam splitting element and then is coupled to the corresponding coupling optical fiber. According to the semiconductor laser device, high-brightness multi-beam output is realized through the beam splitting element; and a deformation prism is arranged in a light path to realize the shaping of the collimated light beam in the fast axis or slow axis direction, so that the production cost is reduced, and the overall integration level of the device is improved.

The laser module (20) includes: a first LD (31) emitting a first light (L1), a second LD (32) emitting a second light (L2), collimating lenses (36) and (37), and a wavelength combining element (45). The wavelength combining element (45) reflects the first light (L1) in a predetermined direction and causes the second light (L2) to overlap with the first light (L1) and be emitted in the predetermined direction. The fast axis of the first light (L1) incident on the wavelength combining element (45) is parallel to a first plane, and the fast axis of the second light (L2) incident on the wavelength combining element (45) is parallel to a second plane. The first plane and the second plane pass through the entire range of the first light (L1) from the reflector (44A2) to the wavelength combining element (45) and the entire range of the first light (L1) from the wavelength combining element (45) to the first focusing lens (46).

The embodiment of the invention provides an optical axis alignment method and alignment device for an optical film assembly. The optical axis alignment method of the optical film assembly comprises the following steps: inputting linearly polarized light to a phase delay film, and controlling a fast axis or a slow axis of the phase delay film to be aligned with an optical axis of a polarizing film; the phase delay film is controlled to rotate by 45 degrees so that the fast axis 45 degrees or the slow axis 45 degrees of the phase delay film can be aligned with the optical axis of the polarizing film.

The invention discloses a multi-chip laser packaging assembly, and belongs to the technical field of photoelectricity. The multi-chip laser packaging assembly comprises a bottom plate, a plurality of light-emitting chips arranged in rows and columns are attached to the bottom plate, and the light-emitting chips emit multi-color laser beams and have the slow axis direction and the fast axis direction. The collimating lens group comprises a plurality of collimating lenses arranged in rows and columns, the slow axis direction of the laser beam is parallel to the row direction of the plurality of light-emitting chips, and the fast axis direction of the laser beam is parallel to the column direction of the plurality of light-emitting chips; the collimating lens is a free-form surface lens, and the curvature radius of the collimating lens in the row direction is different from the curvature radius of the collimating lens in the column direction. The multi-chip laser packaging assembly solves the problem that the collimation performance of multi-color laser emitted by the multi-chip laser packaging assembly is poor.