The present disclosure relates to an LED active luminous traffic marking based on light-transmitting concrete and a construction method thereof. The luminous traffic marking includes a light-transmitting concrete layer and a light source layer that are arranged vertically, where the light-transmitting concrete layer includes a concrete base and a plurality of light-guide fibers embedded in the concrete base, the light source layer includes an integrated LED light source board and a packaging protective shell for packaging the integrated LED light source board, the packaging protective shell is a shell with anchoring hollow protrusions, and the packaging protective shell is anchored to the concrete base through the anchoring hollow protrusions. Compared with the prior art, the present disclosure improves the visibility, digitalization and intelligence level of road traffic markings, and has a broad application prospect.

A light fixture has a translucent tubular bulb. At least one end cap is located at one end of the translucent tubular bulb. A light engine is disposed in the translucent tubular bulb. The light engine has a leadframe on which a plurality of semiconductor light elements is arranged. The fixture may include an electronic driver. The electronic driver includes a plurality of electronic components. At least one of the plurality of electronic components is arranged inside the transparent tubular bulb.

A light emitting device includes a base having a light reflecting surface and having a first side on which the light reflecting surface is provided, light sources mounted on the first side, and a half mirror disposed opposite to the base to reflect a part of incident light and to transmit another part of the incident light. Each of the light sources includes a reflecting layer on an upper surface of each of the light sources. The half mirror has an oblique reflectance with respect to wavelengths of light emitted from the light sources in a case where the light travels obliquely toward the half mirror. The half mirror has a perpendicular reflectance with respect to the wavelengths in a case where the light travels perpendicularly toward the half mirror. The oblique reflectance is smaller than the perpendicular reflectance.

Disclosed are various embodiments of LED lamps that are both watertight and waterproof for use in outdoor venues. The LED lamps can easily be assembled using automated or manual techniques and provide a reliable source of outdoor lighting for many years. Simple and inexpensive techniques are used to assemble the LED lamps that allow the lamps to be produced at a reasonable price.

An LED lamp that can take the place of incandescent lamps. An elevated light source is positioned above a screw-type base. A first plurality of LEDs is connected in a series on one side of a flat substrate and a second plurality of LEDs, equal in number to the first, is connected in series on an opposite side of the substrate. Each LED of the first and second plurality of LEDs is mounted proximate a heat sink and a drive circuit is provided for the LEDs, with the drive circuit being located proximate and electrically connected to the screw base.

The invention relates to a method for pressing strip-like element (12) onto the inner surface of the side wall of a tube (11) having an open end in which method: —a strip like element (12) is secured on the outer surface of a rod-like element (13) being fittable inside the tube (11) through its open end; —the rod-like element is fitted movably at least partly inside the tube; —rod-like element (13) is moved transversally in the tube (11) such that the rod-like element (13) presses the strip-like element (12) against the inner surface of the side wall of the tube (11). In the method according to the invention the rod-like element (13) is at least partly ferromagnetic rod-like element (13) and magnetic force effecting on the at least partly ferromagnetic rod-like element (13) is formed at least into inner side of the tube (11) such that it moves the at least partly ferromagnetic rod-like element (13) transversally towards the portion of the inner surface of the tube (11) being opposite the strip like-element (12) such that the strip-like element (12) is pressed against the inner surface of the side wall of the tube (11). The invention relates also to an apparatus (10) for carrying out the method according to the invention.

The present disclosure provides a fire resistant LED module, including a metal mask and a printed circuit board (PCB). A layer of flame-retardant glue is coated on one side, facing the PCB, of the metal mask, and the metal mask is pasted with the PCB through the flame-retardant glue. A sub-black insulating surface layer is disposed on the metal mask. The present disclosure further provides a manufacturing method of the fire resistant LED module, including following steps: processing surfaces of the metal mask after etching to form the sub-black insulating surface layer; coating the flame-retardant glue on one surface of the metal mask facing the PCB; and covering the metal mask on the PCB through the flame-retardant glue. The sub-black insulating surface layer is formed through processing the surfaces of the metal mask 1.

An electronic device includes a heat dissipation structure that includes one or more openings. An electronic component is disposed on a surface of the heat dissipation structure and over the one or more openings. The electronic component is coupled to the heat dissipation structure by an adhesion material in the one or more openings.

A light bulb shaped lamp (1) according to the present invention includes: a base board (120); an LED chip (110) mounted on the base board (120); a base (190) for receiving power from outside; at least two power-supply leads (140) for supplying power to the LED chip (110); and a globe (170) for housing the base board (120), the LED chip (110), and the power-supply leads (140), the globe being partially attached to the base (190), the base board (120) is translucent, each of the two power-supply leads (140) is extended from a side of the base toward inside of the globe and is connected to the base board (120), and the LED chip (110) is provided between (i) a portion at which one of the two power-supply leads (140) and the base board (120) are connected and (ii) a portion at which the other of the two power-supply leads (140) and the base board (120) are connected.

To provide a lamp unit in which rattling of a light-emitting element is prevented, a lamp unit includes: a holder member attached to an attachment object, a base board provided with a light-emitting element coupled on a main surface thereof; a retaining member that engages the holder member to sandwich the base board between the retaining member and the holder member such that the base board is retained at a prescribed position on the holder member; and a cover member that is at least partially light-transmissive and is attached to the holder member such that the cover member cooperates with the holder member to define a housing chamber for housing the base board and the retaining member.