A light bulb shaped lamp according to the present invention includes: a hollow globe; an LED module including a base platform and an LED chip mounted on the base platform, the LED module being provided in the globe; a lead wire for supplying power to the LED module; and a stem extending toward the interior of the globe, in which the base platform is directly fixed to the stem.

Light bulb shaped lamp and lighting apparatus

A mount member (5) has a contact surface (27 a) touching the bottom surface of an LED module (3) and protrusions (5 a) protruding from the periphery of the contact surface (27 a) in the thickness direction of the LED module (3) and regulating sliding motions thereof. A fixing member (6) made of a resilient, plate-like member comprises an opposing pair of flat portions (43) near the contact surface (27 a) of the mount member (5) and flat tabs (44) projecting from the flat portions (43) toward the contact surface (27 a) touching the upper surface of a substrate (17). The flat portions (43) of the fixing member (6) are fastened to be lower than the top surface of the substrate (17) of the LED module (3). Thus, elastically deformed areas extending from the fastened parts of the flat portions (43) through the flat tabs (44) press the substrate (17) into the mount member (5).

Illumination device including a light-emitting module fastened to mount member with a constant orientation

Lamp realizing high brightness without increase in size, including: case 3 that is in conical shape, wherein LEDs 37 are installed on inner surface of bottom 5 of case 3; lens 13 that is smaller than case 3 in size and positioned in case 3 such that light emission face 63 of lens 13 is on opening side of case 3; cover 15 that is installed to cover opening of case 3 so that light emitted from face 63 is extracted to outside of lamp; base member 17 that is hollow inside and attached to outer surface of bottom 5 of case 3 to project toward outside; and lighting circuit 23 that receives electricity via base member 17, and causes LEDs 37 to emit light. Electronic parts 49, 51 and 99 constituting lighting circuit 23 are arranged in distribution in spaces of case 3 and base member 17.

Lamp and lighting device

A light-emitting diode (LED) bulb has a shell. An LED is within the shell. The LED is electrically connected to a driver circuit, which is electrically connected to a base of the LED bulb. The LED bulb also has a heatsink between the shell and base. A thermal break partitions the heatsink into an upper partition adjacent the shell and a lower partition adjacent the base.

Partitioned heatsink for improved cooling of an led bulb

Standardized photon building blocks are packaged in molded interconnect structures to form a variety of LED array products. No electrical conductors pass between the top and bottom surfaces of the substrate upon which LED dies are mounted. Microdots of highly reflective material are jetted onto the top surface. Landing pads on the top surface of the substrate are attached to contact pads disposed on the underside of a lip of the interconnect structure. In a solder reflow process, the photon building blocks self-align within the interconnect structure. Conductors in the interconnect structure are electrically coupled to the LED dies in the photon building blocks through the contact pads and landing pads. Compression molding is used to form lenses over the LED dies and leaves a flash layer of silicone covering the landing pads. The flash layer laterally above the landing pads is removed by blasting particles at the flash layer.

Packaging photon building blocks having only top side connections in a molded interconnect structure

To provide a bulb-type lamp that can achieve improvement in the heat dissipation properties and size/weight reduction simultaneously, and that can lighten thermal load on a lighting circuit. [Solution] A bulb-type lamp 1 is composed of: an LED module 3 including LEDs; a cylindrically-shaped case 7, to one end of which a base member 15 is attached and which allows dissipation of heat therefrom, the heat being generated by the LEDs emitting light; a mount member 5, on which the LED module 3 is mounted, which closes the other end of the case 7, and allows conduction of the heat to the case 7; a lighting circuit 11 that, upon receiving power via the base member 15, causes the LEDs to emit light; and a circuit holder 13 positioned inside the case 7, with the lighting circuit 11 disposed inside the circuit holder 13. The air space exists between the circuit holder 13 and the case7, and between the circuit holder 13 and the mount member 5. Hence, the lighting circuit 11 is isolated from the air space due to the presence of the circuit holder 13. In the bulb-type lamp 1, a fraction S1/S2 satisfies a relationship 0.5!<=S1/S2, where S1 denotes an area of a portion of the mount member 5 that is in contact with the case 7, and S2 denotes an area of a portion of the mount member 5 that is in contact with a substrate 17 of the LED module 3.

Bulb-shaped lamp and lighting device

A light source used for illumination provides favorable heat dissipation properties while suppressing the lowering of the efficiency of light emission. The light source includes a mount substrate, an LED 23 mounted on the mount substrate and a silicon resin mold containing phosphor particles that convert the wavelength of light emitted from the LED 25. The mount substrate includes a metal substrate 23 coated with a ceramic layer 24 containing light-transmissive or highly reflective ceramic particles.

Light source for lighting

Provided is a bulb-type lamp including a lightweight housing with great handleability An LED light bulb comprises: an LED module on which LEDs are mounted; a cylindrically-shaped case having openings at both ends, which are first and second ends; a mount member on a front surface of which the LED module is mounted, the mount member closing a corresponding one of the openings of the case by being in contact with an inner circumferential surface of the first end of the case; a base member attached to the second end of the case; and a lighting circuit that is disposed inside the case A wall thickness of the case is in a range of 200 μm to 500 μm inclusive, and the wall thickness of at least one portion of the case decreases from the first end toward the second end of the case

Kenzi Takahasi

Papers

Bulb-shaped lamp and lighting device

Light source for lighting

Bulb-type lamp and lighting device