Abstract: Provided is a lighting apparatus that is suitable as a substitute for a conventional halogen lamp when positively utilizing leaked light. The lighting apparatus comprises: a heat dissipator 12 that is in one of a bottomed cylindrical shape and a bowl shape, and that has a bottom portion, a circumferential wall portion, and an opening; and a light-emitting device 18b that is provided inside the heat dissipator 12 at the bottom portion and is operable to emit light, wherein the heat dissipator 12 has one or more windows 19 for leaking the emitted light outside the heat dissipator 12.

Abstract: Provided is a lighting apparatus that is suitable as a substitute for a conventional halogen lamp when positively utilizing leaked light. The lighting apparatus comprises: a heat dissipator 12 that is in one of a bottomed cylindrical shape and a bowl shape, and that has a bottom portion, a circumferential wall portion, and an opening; and a light-emitting device 18b that is provided inside the heat dissipator 12 at the bottom portion and is operable to emit light, wherein the heat dissipator 12 has one or more windows 19 for leaking the emitted light outside the heat dissipator 12.

Abstract: Provided is a light-bulb type LED lamp 10 including a plurality of LEDs 67-78, a base 12, a lighting circuit unit that converts commercial power provided through the base 12 into power for lighting the LEDs 67-78, and a heat radiation member 16 that includes a bowl-shaped portion 42. Two stages 46 and 48, extending inwards from an inner circumferential surface 44 of the bowl-shaped portion 42, are provided in a direction of a central axis X of the bowl-shaped portion 42. The LEDs 67-78 are mounted on the stages 46 and 48 in a circumferential direction around the central axis X.

Abstract: A reflector LED lamp comprises: a reflector 18 having a spheroidal reflecting surface with an opening provided therein; a plurality of LEDs 44, 46, 48, 50, and 52 arranged in the reflector 18, on a plane perpendicular to an optical axis X of the reflector 18; and a lighting circuit operable to light the plurality of LEDs, wherein the plurality of LEDs are divided into at least a first group (LED 44) and a second group (LED 46, 48, 50, and 52), the first group arranged at a first distance from the optical axis X, the second group arranged at a second distance from the optical axis X, the second distance being longer than the first distance, and while the plurality of LEDs are lit by the lighting circuit, luminous flux per LED is larger in the first group than in the second group.

Abstract: Provided is a light-bulb type LED lamp 10 including a plurality of LEDs 67-78, a base 12, a lighting circuit unit that converts commercial power provided through the base 12 into power for lighting the LEDs 67-78, and a heat radiation member 16 that includes a bowl-shaped portion 42. Two stages 46 and 48, extending inwards from an inner circumferential surface 44 of the bowl-shaped portion 42, are provided in a direction of a central axis X of the bowl-shaped portion 42. The LEDs 67-78 are mounted on the stages 46 and 48 in a circumferential direction around the central axis X.

Abstract: In a spot light source 1 including a case 11, a heat radiator 12 and a light-emitter 18, the heat radiator 12 is formed to have a bowl shape including a bottom portion 12a and a side wall portion 12b extending from the peripheral edge of the bottom portion 12a, and the side wall portion 12b is made of light-transmissive ceramic. Light emitted by an LED element 18b of the light-emitter 18 is guided to the side wall portion 12b by a lens 18d so as to generate a leak light traveling sideways from the spot light source 1, which produces highly decorative effect.

Abstract: Provided is a lighting apparatus that is suitable as a substitute for a conventional halogen lamp when positively utilizing leaked light. The lighting apparatus comprises: a heat dissipator 12 that is in one of a bottomed cylindrical shape and a bowl shape, and that has a bottom portion, a circumferential wall portion, and an opening; and a light-emitting device 18b that is provided inside the heat dissipator 12 at the bottom portion and is operable to emit light, wherein the heat dissipator 12 has one or more windows 19 for leaking the emitted light outside the heat dissipator 12.

Abstract: A reflector LED lamp comprises: a reflector 18 having a spheroidal reflecting surface with an opening provided therein; a plurality of LEDs 44, 46, 48, 50, and 52 arranged in the reflector 18, on a plane perpendicular to an optical axis X of the reflector 18; and a lighting circuit operable to light the plurality of LEDs, wherein the plurality of LEDs are divided into at least a first group (LED 44) and a second group (LED 46, 48, 50, and 52), the first group arranged at a first distance from the optical axis X, the second group arranged at a second distance from the optical axis X, the second distance being longer than the first distance, and while the plurality of LEDs are lit by the lighting circuit, luminous flux per LED is larger in the first group than in the second group.

Abstract: Provided is a lighting apparatus that is suitable as a substitute for a conventional halogen lamp when positively utilizing leaked light. The lighting apparatus comprises: a heat dissipator 12 that is in one of a bottomed cylindrical shape and a bowl shape, and that has a bottom portion, a circumferential wall portion, and an opening; and a light-emitting device 18b that is provided inside the heat dissipator 12 at the bottom portion and is operable to emit light, wherein the heat dissipator 12 has one or more windows 19 for leaking the emitted light outside the heat dissipator 12.

Abstract: Provided is a lighting apparatus that is suitable as a substitute for a conventional halogen lamp when positively utilizing leaked light. The lighting apparatus comprises: a heat dissipator 12 that is in one of a bottomed cylindrical shape and a bowl shape, and that has a bottom portion, a circumferential wall portion, and an opening; and a light-emitting device 18b that is provided inside the heat dissipator 12 at the bottom portion and is operable to emit light, wherein the heat dissipator 12 has one or more windows 19 for leaking the emitted light outside the heat dissipater 12.