An external connected lamp holder has a first lamp holder, the first lamp holder is provided with a first socket matched with a lamp body, the lamp body has a first driving circuit board, the external connected lamp holder further includes a first female plug assembly. The external connected lamp holder, interconnected lamp holder, driving circuit board and lamp of the embodiments realize the installation of the lamp holder and the driving circuit board through plug-in electrical connection, instead of being welded together. This construction reduces the requirements of product precision, tooling precision and assembly precision in the automated production process, and it reduces the cost of automated manufacturing and the loss in the production process of products.

An electrical connector device that connects a light source board and a driver board of an LED light electrically. The electrical connector device includes a connector board. The connector board is related to the conductive pins. The connector board is fixed on the light source board and connected to the light source board electrically through the conductive pins. The electrical connector device also includes two electrical connector pieces. Each electrical connector piece includes a whole set for the connection portion and the resistance portion. One end of the connection portion is fixed on the connection board. The resistance portion of the electrical connector piece closes to each other to become an elastic clipping portion and includes the bent and fastening structure. After bending, the fastening structure touches the other end of the connection portion to be fixed on the connection board. The electrical connector device owns the advantages of simple structure and easy to be assembled automatically.

A color mixing light system comprises a pyramidal mirror assembly comprising three or more mirrors constructed and arranged in a pyramid structure and three or more color light sources. The pyramidal mirror assembly divides the light beams from the color light sources so that a first portion is reflected by the mirrors and a second portion extends beyond the mirrors to collectively form a multicolor pattern comprising plurality of overlapping color regions on a surface.

Example embodiments relate to luminaire systems with improved fastening means. One example luminaire system includes a first support provided with a recess. The luminaire system also includes a plurality of light sources arranged on said first support. In addition, the luminaire system includes a second support arranged opposite said first support. Further, the luminaire system includes one or more optical elements provided to said second support, and associated with the plurality of light sources. Additionally, the luminaire system includes a fastening element that includes a head portion and a rod portion. The second support is provided with a through-hole for receiving said head portion. Said rod portion extends through said through-hole and said recess in order to be fixed in the first support and/or in a portion of the luminaire system. The second support is provided with a protruding portion.

A color mixing light system comprises a pyramidal mirror assembly comprising three or more mirrors constructed and arranged in a pyramid structure and three or more color light sources. The pyramidal mirror assembly divides the light beams from the color light sources so that a first portion is reflected by the mirrors and a second portion extends beyond the mirrors to collectively form a multicolor pattern comprising plurality of overlapping color regions on a surface.

Disclosed are pharmaceutical compositions comprising brimonidine and timolol for topical ophthalmic delivery and a method of treatment comprising administering said composition when indicated for glaucoma and associated conditions such as elevated intraocular pressure in the eyes of humans.

An illuminating unit includes a light-guiding section including a plurality of light-guiding plates, in which the light-guiding plates are stacked in a thickness direction and each have a light entrance section and a light output surface, a plurality of light sources that output light toward the light entrance sections of the respective light-guiding plates of the light-guiding section, and a substrate that supports the plurality of light sources and on which a circuit section is disposed, in which the circuit section drives each of the light sources. A first portion, on which the circuit section is disposed, of the substrate is disposed in opposition to a back surface of the light-guiding section.

A lighting engine, system and method of fabrication are described. The system contains a flexible printed circuit (FPC) shaped as a loop. LEDs are mounted on the FPC to emit light toward a center of the loop. A light guide positioned in an interior of the loop receives light emitted by the LEDs through an edge of the light guide. The light guide has slots formed therein that receive locator pins to limit thermal displacement of the light guide towards the LEDs. Other apparatuses, systems, and methods are also disclosed.

A circuit board having a high reflectivity includes a wiring board, a first solder resist layer, and a second solder resist layer. The wiring board includes a wiring layer on an outer side, the wiring layer including wiring and a bond pad spaced from the wiring. The first solder resist layer, with opening and groove, covers the wiring layer, the bond pad is exposed from the opening but spaced from the first solder resist layer. The second solder resist layer infills the groove and covers the first solder resist layer but does not make contact with the mounting surface of the bond pad. A method for manufacturing such circuit board is also disclosed.

The LED lighting device for explosive atmospheres has an optical chamber accommodating an optical system, at least one LED mounted on a printed circuit board, a lens covering the printed circuit board, and a control chamber accommodating a supply device of the printed circuit board and control device of the supply device. The optical chamber and the control chamber extend within a closed enclosure to withstand any impacts coming from the environment outside the lighting device or coming from the optical chamber and/or the control chamber. The lens of the optical system is defined by a silicone lens that is an integral part of the enclosure.