Abstract: An optical module for protecting human eyes includes a first support element, first conductive paths, a lens, at least one second conductive path, and a light-emitting element. The first support element has a bottom plate and a sidewall on the bottom plate. The first conductive paths are in the first support element or outside the first support element. Each of the first conductive paths has a first end adjacent to a top surface of the sidewall and a second end adjacent to the bottom plate. The lens is located on the top surface of the sidewall. The second conductive path is electrically connected to the first ends of the first conductive paths. The light-emitting element is located on the bottom plate of the first support element. When a resistance difference is detected through the first and second conductive paths, the light-emitting element is switched off.

Abstract: A light-emitting device is able to output white in accordance with the white rendering effect required in various application sites. The light-emitting device includes a (circuit) substrate, at least one light-emitting unit disposed on the substrate, an electrically conductive section disposed on the substrate, a protection layer disposed on the substrate, and an electric conductor disposed on the protection layer and electrically connected with the light-emitting unit and the electrically conductive section. The protection layer is formed with a receiving section. The light-emitting unit is positioned in the receiving section and securely enclosed by an adhesive body. The light-emitting device can achieve a pure white general output optical spectrum to overcome the problems of the conventional technique that the structure is complicated, the manufacturing time is longer and the manufacturing cost is higher.

Abstract: A light-emitting diode package element includes a substrate, a plurality of light-emitting dies arranged on the substrate, and a second wavelength-conversion layer. Some of the light-emitting dies are covered with first wavelength-conversion layers thereon, respectively. The first wavelength-conversion layers convert into light with a first color temperature. The second wavelength-conversion layer covers the substrate, the light-emitting dies, and the first wavelength-conversion layers, and converts into light with second color temperature different to the light with the first color temperature.

Abstract: An LED light core structure, which has better mechanical strength and good heat dissipation effect and is able to 360-degree project light. The LED light core structure includes a substrate having at least two faces. The substrate is formed with at least one opening communicating the two faces. LEDs are disposed on at least one of the two faces of the substrate at the opening, whereby the light emitted from the LEDs disposed on one of the two faces of the substrate can be projected through the opening to the opposite face of the substrate. Accordingly, the substrate can be made of metal material, whereby the substrate is unlikely to crack so that the ratio of good products is increased and the substrate can provide excellent heat dissipation effect for the LEDs. The conventional wolfram filament electrodes can be directly replaced with the LED light core structure.

Abstract: A multidirectional optical positioning method and a device thereof, and more particularly a signal transmission and positioning method applied to visible light communication and a device thereof. The device includes a transparent board having multiple different light conversion layers on the surface. The light conversion layers are arranged in one single axial direction. A light emitting unit is used to project an incident light onto an incident side of the transparent board. After the incident light passes through the light conversion layers, the incident light is converted into multiple radiating lights with different physical effects, which are emitted from an emission side of the transparent board. A sensor is disposed on the emission side of the transparent board to receive the radiating lights, whereby the position of the sensor can be found according to different extents of the physical effects of the different radiating lights.

Abstract: A light-emitting module has better white light color rendering index to provide white rendering effect in accordance with the requirements of various application sites. The light-emitting module includes a (circuit) substrate board and at least one ultraviolet ray emitter and at least one blue light emitter disposed on the substrate board. The light wavelength of the ultraviolet ray emitter ranges from 380 nm to 420 nm. The light wavelength of the blue light emitter ranges from 440 nm to 470 nm. A wavelength conversion layer is laid on the substrate board. The wavelength conversion layer includes a first wavelength conversion material and a second wavelength conversion material for receiving and converting the light emitted from the ultraviolet ray emitter into visible light and the light emitted from the blue light emitter into white light. After the lights are mixed, a white general output optical spectrum is achieved.

Abstract: A beam collimated light emitting module with a light color mixed chamber includes a light holder, a light source assembly located on the light holder, an optical lens covering the light source assembly, and a reflector. The optical lens includes a first light exit surface, a light entrance surface, and a second light exit surface. The first light exit surface has a round-shaped concave surface formed by recessing the first light exit surface, and the aspheric curvature of the concave surface is gradually decreased in an outward direction away from the center of the optical lens. The reflector surrounds the optical lens. When the light source assembly emits light, the bluish white light and the yellowish white light of the light source assembly are refracted by the concave surface, and next the bluish white light and the yellowish white light are reflected by the reflector.

Abstract: The phosphor sheet of the present invention mainly includes a sheet material that is formed by mixing and solidifying of a phosphor powder and an adhesive material. The sheet material subsequently forms a first surface that receives a light source, and forms a second surface that is located on the opposite side to the first surface for scattering a light source. In addition, the distribution ratio of the phosphor powder as well as the adhesive material within the phosphor sheet is based mainly on the different positions and different distances towards the light source; the distribution ratio of the phosphor powder and the adhesive material increases gradually from the first surface towards the second surface. The phosphor of the present invention is designed to be a sheet material, so as to enable the overall volume of the light emitting device to be reduced.

Abstract: The phosphor sheet of the present invention mainly includes a sheet material that is formed by mixing and solidifying of a phosphor powder and an adhesive material. The sheet material subsequently forms a first surface that receives a light source, and forms a second surface that is located on the opposite side to the first surface for scattering a light source. In addition, the distribution ratio of the phosphor powder as well as the adhesive material within the phosphor sheet is based mainly on the different positions and different distances towards the light source; the distribution ratio of the phosphor powder and the adhesive material increases gradually from the first surface towards the second surface. The phosphor of the present invention is designed to be a sheet material, so as to enable the overall volume of the light emitting device to be reduced.

Abstract: A beam collimated light emitting module with a light color mixed chamber includes a light holder, a light source assembly located on the light holder, an optical lens covering the light source assembly, and a reflector. The optical lens includes a first light exit surface, a light entrance surface, and a second light exit surface. The first light exit surface has a round-shaped concave surface formed by recessing the first light exit surface, and the aspheric curvature of the concave surface is gradually decreased in an outward direction away from the center of the optical lens. The reflector surrounds the optical lens. When the light source assembly emits light, the bluish white light and the yellowish white light of the light source assembly are refracted by the concave surface, and next the bluish white light and the yellowish white light are reflected by the reflector.

Abstract: A non-isolating circuit assembly includes a heat sink, a circular supporting member, a thermal insulation pad, and a light emitter. The heat sink has an inwardly-shrank platform. The circular supporting member is disposed around the outer edge of the inwardly-shrank platform. The thermal insulation pad is disposed on the inwardly-shrank platform and the circular supporting member. The area of the thermal insulation pad is larger than that of the inwardly-shrank platform, and the circular supporting member supports the outer edge of the thermal insulation pad. The light emitter is disposed on the thermal insulation pad.

Abstract: A heat sink includes a main structure and a peripheral structure. The main structure includes a bottom surface and a wall portion. The wall portion surrounds the outer edge of the bottom surface. The wall portion has a plurality of vents. The peripheral structure surrounds the outer edge of the main structure. The peripheral structure has a plurality of first flow paths and a plurality of second flow paths. Each of the first flow paths is located adjacent to the outside of the wall portion. Each of the second flow paths is communicated to the bottom surface via the corresponding vent.

Abstract: A light device and its light emitting diode module are provided in the disclosure. The light emitting diode module includes a substrate, an arrayed light emitting group and a single sealant body. The arrayed light emitting group includes a plurality of light emitting strings connected between a positive pole and a negative pole in parallel. Each light emitting strings includes a plurality of blue light emitting diode chips and a red light emitting diode chips, which are both electrically connected on the substrate in series. The single sealant body completely covers all of the light emitting strings, and is contained with phosphors uniformly therein.

Abstract: A detachable lamp includes a lighting module, a first engaging member, and an optical device. The lighting module includes a base and a lighting unit. The base surrounds the lighting unit. The first engaging member is disposed on the base and has a first through hole. The first through hole is aligned with the periphery of the lighting unit. The first engaging member has a plurality of engaging portions circularly disposed on the first engaging member. The optical device has a second engaging member located on the optical device. The second engaging member has a second through hole and a plurality of engaging notches. The second through hole is aligned with the first through hole. The engaging notches are circularly formed on the second engaging member, and sidewalls of the engaging notches are able to insert into the engaging portions and rotate an angle.

Abstract: A light device and its light emitting diode module are provided in the disclosure. The light emitting diode module includes a substrate, an arrayed light emitting group and a single sealant body. The arrayed light emitting group includes a plurality of light emitting strings connected between a positive pole and a negative pole in parallel. Each light emitting strings includes a plurality of blue light emitting diode chips and a red light emitting diode chips, which are both electrically connected on the substrate in series. The single sealant body completely covers all of the light emitting strings, and is contained with phosphors uniformly therein.

Abstract: A light emitting device includes a socket ring including a support portion and a first side wall, a light source module, and a bottom holder including a fixing portion and a second side wall. The support portion has a first surface and a second surface opposite to the first surface. The first side wall is perpendicular to the second surface. A first thread and at least one heat dissipating fin are formed on the first side wall. The first thread and the heat dissipating fin are respectively located on an inner surface and an outer surface of the first side wall. The second side wall stands erect on the fixing portion, and has a second thread coupled to the first thread.

Abstract: A heat sink includes a main structure and a peripheral structure. The main structure includes a bottom surface and a wall portion. The wall portion surrounds the outer edge of the bottom surface. The wall portion has a plurality of vents. The peripheral structure surrounds the outer edge of the main structure. The peripheral structure has a plurality of first flow paths and a plurality of second flow paths. Each of the first flow paths is located adjacent to the outside of the wall portion. Each of the second flow paths is communicated to the bottom surface via the corresponding vent.

Abstract: An optical sensing device includes a shell, at least one light emitting member, a rotator type shading member and at least one optical sensing member. The shell is formed with a black-body condition space having a light emitting chamber, a shading chamber and at least one optical sensing chamber. The light emitting member projects a light beam. The rotator type shading member is rotatably restrained within the shading chamber, and has a geometric center and a weight center offset from the geometric center. When the optical sensing device is lifted in a lifting azimuth or lowered in a lowering azimuth, the rotator type shading member is rotated by the geometric center to make the weight center located in the lowering azimuth with respect to the geometric center. The optical sensing member is arranged in the optical sensing chamber, and senses the light beam to accordingly send out a sensing signal.

Abstract: A light emitting device includes a light reflector and a first light source. The light reflector includes a first concave surface and a second concave surface immediately adjacent to the first concave surface. The convex ridge is located between the first and second concave surface and has an apex line extending along a direction. The first light source is located at a side of the first concave surface and opposite to the convex ridge. The first light source has a first emitting surface facing the convex ridge. The convex ridge has an apex located higher than a bottom of the first emitting surface, but lower than a top of the first emitting surface.