Abstract: An edge-emitting semiconductor laser with high thermal conductivity and low reflection front mirror surface, comprising: an edge-emitting semiconductor laser die having a rear mirror surface and a front mirror surface on the lateral side, and the electromagnetic radiation generated by the edge-emitting semiconductor laser die is in the wavelength range of 635 nm to 1550 nm; a rear mirror surface coating; and a front mirror surface e, and a passivation layer, an affinity layer, a high thermal conductivity layer and a protective layer. Whereby, providing an edge-emitting semiconductor laser with high thermal conductivity and low reflection front mirror surface, and the front mirror surface coating is made of high thermal conductivity insulating materials to form a multi-layer coating structure, so that the front mirror surface coating has the effect of high thermal conductivity and low reflection.

Abstract: A high-power edge-emitting semiconductor laser with asymmetric structure, comprising: a substrate layer; a lower cladding layer; a lower optical waveguide layer; a first lower barrier layer; a quantum well layer; a first upper barrier layer; an upper optical waveguide layer, and make the thickness of the upper optical waveguide layer be below 300 nm, the thickness of the upper optical waveguide layer is ?˜½ of the thickness of the lower optical waveguide layer; an upper cladding layer, and make the thickness of the upper cladding layer be below 900 nm, the thickness of the upper cladding layer is ?˜½ of the thickness of the lower cladding layer; and an ohmic contact layer formed on the upper cladding layer.

Abstract: The present invention relates to a plenoptic cloud generation method, the method of generating a plenoptic point cloud according to one embodiment of the present invention, the method comprises, obtaining a two-dimensional (2D) image for each view and depth information obtained from a plurality of cameras, determining a method of generating a plenoptic point cloud and generating the plenoptic point cloud by applying the determined method of generating the plenoptic point cloud to at least one of the 2D image for each view or the depth information, wherein the method of generating the plenoptic point cloud includes at least one of a simultaneous generation method of the point cloud and a sequential generation method of the point cloud.

Abstract: A method of automated tooth segmentation of a three dimensional scan data using a deep learning, includes determining a U-shape of teeth in input scan data and operating a U-shape normalization operation to the input scan data to generate first scan data, operating a teeth and gum normalization operation, in which the first scan data are received and a region of interest (ROI) of the teeth and gum is set based on a landmark formed on the tooth, to generate second scan data, inputting the second scan data to a convolutional neural network to label the teeth and the gum and extracting a boundary between the teeth and the gum using labeled information of the teeth and the gum.

Abstract: A dot projector with automatic power control includes a housing covering a substrate with an installing space and a platform therein, an automatic power control integrated circuit, a photodiode and a reflector disposed under the platform of the housing, a collimator disposed in the installing space of the housing and a diffractive optical element bonded on the platform of the housing. Whereby a laser diode emits a laser light to the reflector for the laser light to be reflected perpendicularly through the collimator to the diffractive optical element; then the diffractive optical element produces a plurality of light spots and the a stray light is also produced from the laser light. The photodiode of the automatic power control integrated circuit then detects the stray light and produces a feedback signal transmitted back to the laser diode for adjustment of the laser emission power in order to control the light spots produced by the diffractive optical element.

Abstract: A laser module package with dual colors and multi-dies mainly includes a first PCB arranged in long shape and electrically connected to a plurality of first dies, a second PCB arranged in long shape and electrically connected to a plurality of second dies, a plurality of first collimators correspondingly disposed in a plurality of first openings, and a plurality of second collimators correspondingly disposed in a plurality of second openings. A plurality of first reflectors correspondingly reflects laser beams emitted from the first dies to the first collimators and a plurality of second reflectors correspondingly reflects laser beams emitted from the second dies to the second collimators; or having a plurality of first metal pieces fixing corresponding first dies for the laser beams emitted therefrom to go through the corresponding first collimators and a plurality of second metal pieces fixing corresponding second dies for the laser beams emitted therefrom to go through the corresponding second collimators.

Abstract: A dimming control method and circuit thereof are provided. After receiving a TRIAC signal with at least one positive/negative half cycle waveforms, the turning points of the positive/negative half cycles are detected to obtain the conduction angles of the positive/negative half cycle waveforms. Then, a pulse width modulated signal with the symmetrical positive and negative half cycle waveforms is rebuilt to control a lamp. Therefore, the disclosure can solve the flickering issue of the lamp.

Abstract: A dimming control method and circuit thereof are provided. After receiving a TRIAC signal with at least one positive/negative half cycle waveforms, the turning points of the positive/negative half cycles are detected to obtain the conduction angles of the positive/negative half cycle waveforms. Then, a pulse width modulated signal with the symmetrical positive and negative half cycle waveforms is rebuilt to control a lamp. Therefore, the disclosure can solve the flickering issue of the lamp.

Abstract: The present disclosure relates to a switch circuit. The switch circuit comprises: a plurality of storing elements and a plurality of switch elements. The plurality of switch elements coupled the plurality of storing elements for generating a step-down mode. Moreover, the switch elements, controllers and parts of resistors in the present disclosure are integrated in an integrated circuit so as to effectively reduce size and weight of the driving circuit, advance the circuit suitability, and decrease the development cost of the circuit.

Abstract: A method of manufacturing a light-emitting device comprising the steps of cutting a substrate by a laser beam to form a cavity in the substrate and generate a by-product directly on the substrate by the cutting, and removing the by-product by a chemical solution containing an acid under a predetermined cleaning temperature.

Abstract: A light-emitting device package including a substrate, a packaging lens, a light-emitting unit and a plurality of optical microstructures is provided. The packaging lens and the light-emitting unit are disposed on the substrate and the packaging lens wraps the light-emitting unit. The packaging lens has a bottom surface and includes at least one platform. The at least one platform has a side surface and a platform surface. The bottom surface of the packaging lens is connected with the platform surface through the side surface. The platform surface faces away from the light-emitting unit and the bottom surface. The optical microstructures are located on the platform surface of the at least one platform.

Abstract: A light emitting diode (LED) lamp includes a heat dissipation module, a circular light guide plate (LGP), and LED light sources. The heat dissipation module includes a heat dissipation element and a heat-conducting base that has a containing concave. The heat dissipation element connecting and surrounding the heat-conducting base is distant from the circumference of the heat-conducting base. The circular LGP in the containing concave has a top surface, a bottom surface, and an annular side surface. The top surface faces the heat-conducting base and has concentric annular trenches. The LED light sources are configured in the containing concave and face the annular side surface. The LED light sources are suitable for emitting a light beam which is capable of passing through the annular side surface to enter the circular LGP and capable of being reflected by the annular trenches and emitted from the bottom surface.

Abstract: An illuminating module includes at least one light-emitting chip, a phosphor, and a color temperature conversion media. The light-emitting chip is capable of emitting wavelength light, and the phosphor is disposed in a propagation path of the wavelength light to transform the wavelength light into a first white light with a first color temperature. The color temperature conversion media is disposed in a propagation path of the first white light to transform the first white light into a second white light with a second color temperature. The second color temperature is smaller than the first color temperature.

Abstract: The present disclosure relates to a switch circuit. The switch circuit comprises: a plurality of storing elements and a plurality of switch elements. The plurality of switch elements coupled the plurality of storing elements for generating a step-down mode. Moreover, the switch elements, controllers and parts of resistors in the present disclosure are integrated in an integrated circuit so as to effectively reduce size and weight of the driving circuit, advance the circuit suitability, and decrease the development cost of the circuit.

Abstract: A method of manufacturing a light-emitting device comprising the steps of cutting a substrate by a laser beam to form a cavity in the substrate and generate a by-product directly on the substrate by the cutting, and removing the by-product by a chemical solution containing an acid under a predetermined cleaning temperature.

Abstract: A method of manufacturing a light-emitting device comprising the steps of cutting a substrate by a laser beam to form a cavity in the substrate and generate a by-product directly on the substrate by the cutting, and removing the by-product by a chemical solution containing an acid under a predetermined cleaning temperature.

Abstract: A light source module includes a transparent element, a plurality of light-emitting devices, and a plurality of light diffusion micro-structures. The transparent element includes a transparent substrate having a light exiting surface and a bottom surface opposite to the light exiting surface, a plurality of first notches, and a plurality of second notches. The first notches are sunken at the light exiting surface. There is a reflection surface in each of the first notches. The second notches are respectively opposite to the first notches and sunken at the bottom surface. The second notches respectively have a light incident curve-surface. The light-emitting devices are respectively disposed beside the light incident curve-surfaces. Each of the light-emitting devices has a light exiting surface capable of providing a light beam. The light exiting surface is not conformal to the light incident curve-surface. The light diffusion micro-structures are disposed on the bottom surface.

Abstract: A light guide plate (LGP) includes a first surface, a second surface, and a plurality of light incident surfaces. The first surface is a light-emitting surface. The light incident surfaces connect the first surface and the second surface. The second surface has a plurality of ring-shaped grooves. Depths of the ring-shaped grooves are gradually decreased from a place close to a center of the LGP towards places close to the light incident surfaces. Each of the ring-shaped grooves has a first ring-shaped side wall surface and a second ring-shaped side wall surface. The second ring-shaped side wall surface is opposite to the first ring-shaped side wall surface and located between a geometry center of the ring-shaped groove and the first ring-shaped side wall surface. The first ring-shaped side wall surface is a tilted surface. In addition, a light source apparatus is also provided.

Abstract: A method for manufacturing a light-emitting device comprising the steps of: providing a substrate comprising a first surface and a second surface; forming a plurality of cutting lines on the substrate by a laser beam; cleaning the substrate by a chemical solution; and forming a light-emitting stack on an first surface of the substrate after cleaning the substrate.

Abstract: A light guide unit including a light guide plate and a scattering reflective unit is provided. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. The light incident surface includes a first recess and a second recess arranged in a sequence from the first surface to the second surface. An average radius of curvature of the first recess is less than an average radius of curvature of the second recess. The scattering reflective unit is disposed on the second surface. A light source module is also provided.