6 results about "Blue laser light" patented technology

The objective of the present invention is to provide: a beam combiner in which the intensity of blue laser light after coupling is sufficiently strong and a temperature rise is suppressed; and a beam combiner system including the beam combiner. A beam combiner (1) according to the present invention comprises a substrate (2) and an optical multilayer film (4) formed directly on a substrate surface (Q), which is the surface of the substrate (2). The optical multilayer film (4) has alternating low refractive index layers and high refractive index layers, transmits first laser light (L1) in the blue region of p-polarized light, and reflects polarization-converted laser light (LZ) in the blue region of s-polarized light. Each high refractive index layer of the optical multilayer film 4 is an HfO2 layer made of HfO2 and contains a monoclinic crystal. The (-111) plane of the monoclinic crystal is oriented in the direction perpendicular to the substrate surface (Q).

The application discloses a laser repairing method and device for a perovskite layer of a solar cell piece, and the repairing method comprises the following steps: S1, detecting and determining all defect areas on the perovskite layer; S2, dropping perovskite precursor liquid on each defect area, and spreading the perovskite precursor liquid droplets to cover the defect areas; S3, placing the solar cell piece semi-finished product on a moving platform, presetting a path of the moving platform, a laser repairing path and a light spot shape and size, and ensuring that a laser scanning area can cover all the defect areas; S4, emitting blue laser to the perovskite precursor liquid, driving the moving platform and the laser to move according to the preset path, and making the perovskite precursor liquid of the defect area rapidly react to form perovskite crystals; and S5, cleaning and drying the surface of the perovskite layer, and completing the repairing. In the application, the blue laser can rapidly make the perovskite precursor liquid chemically change and rapidly form perovskite crystals, and the perovskite layer is rapidly repaired.

The laser device (10) of the present application is provided with: six first laser devices (101 to 106) each outputting blue laser light for preheating an object (400); and a second laser device (201) outputting infrared laser light for main heating of the object (400), at least one of the relative positional relationship of the six first irradiation positions of the blue laser light in the object (400) and the second irradiation position of the infrared laser light in the object (400) and the positions of the plurality of first irradiation positions being changeable.

A laser welding method according to the present invention serves to join stacked metal foils, in which several copper-based foils are stacked, and a strip plate formed from a copper-based material and comprises: a step of placing one end of the stacked metal foils on the strip plate; and a step of irradiating one end of the stacked metal foils and the strip plate with a blue laser beam by repeatedly moving the blue laser beam back and forth along a welding line on the strip plate along one end of the stacked metal foils.

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 relates to the technical field of bird driving, and specifically discloses a portable blue laser bird driving device with adjustable frequency flash and power, which comprises a laser tube, a control circuit and a lens, wherein the control circuit comprises a main control chip circuit module, a DAC module, a frequency flash control module and a power control module; the DAC module and the main control chip circuit module are connected through SYNC, SCLK, DIN and LDAC pins; and the frequency flash control module and the main control chip circuit module are connected through a PLUSE pin. The problems of certain limitations of the traditional bird driving method in the prior art are solved.