Abstract: A light source module includes a substrate, a plurality of light emitting devices disposed along a line on the substrate, and a lens. The lens extends in a long-axis direction in which the plurality of light emitting devices are aligned to cover the substrate and the plurality of light emitting devices, and has end sides opened at opposing ends of the lens in the long-axis direction. The lens has a first surface to which light from the plurality of light emitting devices is made incident, and a second surface allowing light made incident through the first surface to be radiated outwardly. The lens has a variable thickness, measured as a distance between the first surface and the second surface, in a cross-section of the lens along a plane orthogonal to the long-axis direction.

Abstract: There is provided a light emitting diode (LED) lens for double-sided lighting, including a light diffusion agent diffused therein, the LED lens including a light receiving portion receiving light, a first light transmitting portion corresponding to the light receiving portion and transmitting a portion of the light in an upward direction therefrom, a reflective portion extended from the first light transmitting portion and reflecting a portion of the light, and a second light transmitting portion facing the first light transmitting portion and transmitting the light reflected by the reflective portion in a downward direction therefrom.

Abstract: A lens and a bulb-type light emitting device lamp employing the lens are disclosed. The lens for changing light distribution of incident illumination light and emitting the illumination light includes a light incident surface that is curved, a top surface that is planar and via which at least a portion of light incident via the light incident surface is emitted, and a side surface that is uneven and via which at least a portion of light incident via the light incident surface is emitted. The bulb-type light emitting device lamp includes the lens and a light emitting device package including one or more light emitting devices.

Abstract: A bulb-type semiconductor light-emitting device lamp having wide light distribution characteristics which are similar to those of a typical incandescent bulb is provided. The semiconductor light-emitting device lamp includes: a plurality of light-emitting devices that are arranged such that light is emitted therefrom toward a central axis of the bulb-type semiconductor light-emitting device lamp. Also, the bulb-type semiconductor light-emitting device lamp includes a heat dissipation structure having a plurality of installation surfaces that surround the central axis and are separated from each other, wherein each of the plurality of light-emitting devices includes one or more light-emitting devices.

Abstract: An omnidirectional semiconductor light emitting device lamp has a light distribution characteristic having a large range similar to that of a general incandescent lamp. The semiconductor light emitting device lamp includes a light emitting device for emitting light in all directions and reflection plates arranged at a front surface and a lateral surface of the light emitting device. The light emitted from the light emitting device is reflected from the reflection plate located at the front side and the reflection plate located at the lateral side and emitted to a rear side of the light emitting device. A reflection film is formed on all exposed portions of a surface of the substrate on which the light emitting device is mounted.

Abstract: A light source module includes a substrate, a plurality of light emitting devices disposed along a line on the substrate, and a lens. The lens extends in a long-axis direction in which the plurality of light emitting devices are aligned to cover the substrate and the plurality of light emitting devices, and has end sides opened at opposing ends of the lens in the long-axis direction. The lens has a first surface to which light from the plurality of light emitting devices is made incident, and a second surface allowing light made incident through the first surface to be radiated outwardly. The lens has a variable thickness, measured as a distance between the first surface and the second surface, in a cross-section of the lens along a plane orthogonal to the long-axis direction.

Abstract: The present application provides light emitting diode (LED) lighting including a white LED and a red LED. Chromaticity of the white LED has a color temperature of between about 2800 K to about 3700 K within a range according to ANSI C78. 377-2008 standard, and a range of the color temperature corresponds to a higher range than a chromaticity locus defined by blackbody radiation.

Abstract: An omnidirectional semiconductor light emitting device lamp has a light distribution characteristic having a large range similar to that of a general incandescent lamp. The semiconductor light emitting device lamp includes a light emitting device for emitting light in all directions and reflection plates arranged at a front surface and a lateral surface of the light emitting device. The light emitted from the light emitting device is reflected from the reflection plate located at the front side and the reflection plate located at the lateral side and emitted to a rear side of the light emitting device. A reflection film is formed on all exposed portions of a surface of the substrate on which the light emitting device is mounted.

Abstract: A lighting device including: a light-emitting device unit including one or more light-emitting devices; a first reflector which faces the light-emitting device unit and reflects light emitted from the light-emitting device unit; and a second reflector which faces the first reflector and reflects light reflected by the first reflector.

Abstract: There is provided a light emitting diode (LED) lens for double-sided lighting, including a light diffusion agent diffused therein, the LED lens including a light receiving portion receiving light, a first light transmitting portion corresponding to the light receiving portion and transmitting a portion of the light in an upward direction therefrom, a reflective portion extended from the first light transmitting portion and reflecting a portion of the light, and a second light transmitting portion facing the first light transmitting portion and transmitting the light reflected by the reflective portion in a downward direction therefrom.

Abstract: A condensing lens includes a main body. The main body includes a light emitting diode (LED) receiving portion defined in a ring shape and depressed at one side of the main body to receive an LED in a circumferential direction. The main body also includes a light incidence surface to which light emitted from the LED is incident, a light emission surface defined at another side of the main body and configured to emit the incident light, and a reflective surface to reflect the incident light.

Abstract: A lighting fixture includes: a base; a plurality of optical sources attached on an upper surface of the base to emit light; a heat spreader attached to the base to radiate heat emitted from the plurality of optical sources; and a light diffusion lens disposed on the upper surface of the plurality of optical sources to refract light emitted from the plurality of optical sources and to increase an irradiation angle of light. In the lighting fixture, an irradiation angle of light emitted from an optical source is close to that of a general electric-light bulb and thus a light distribution characteristic of the lighting fixture may be improved.

Abstract: A lens and a bulb-type light emitting device lamp employing the lens are disclosed. The lens for changing light distribution of incident illumination light and emitting the illumination light includes a light incident surface that is curved, a top surface that is planar and via which at least a portion of light incident via the light incident surface is emitted, and a side surface that is uneven and via which at least a portion of light incident via the light incident surface is emitted. The bulb-type light emitting device lamp includes the lens and a light emitting device package including one or more light emitting devices.

Abstract: A lighting device including: a light-emitting device unit including one or more light-emitting devices; a first reflector which faces the light-emitting device unit and reflects light emitted from the light-emitting device unit; and a second reflector which faces the first reflector and reflects light reflected by the first reflector.

Abstract: A bulb-type semiconductor light-emitting device lamp having wide light distribution characteristics which are similar to those of a typical incandescent bulb is provided. The semiconductor light-emitting device lamp includes: a plurality of light-emitting devices that are arranged such that light is emitted therefrom toward a central axis of the bulb-type semiconductor light-emitting device lamp. Also, the bulb-type semiconductor light-emitting device lamp includes a heat dissipation structure having a plurality of installation surfaces that surround the central axis and are separated from each other, wherein each of the plurality of light-emitting devices includes one or more light-emitting devices.

Abstract: Provided is a lighting apparatus including: a plurality of light-emitting devices; a mounting portion on which the plurality of light-emitting devices is disposed; and a light guide cover which guides light emitted from the plurality of light-emitting devices to the outside.

Abstract: An omnidirectional semiconductor light emitting device lamp has a light distribution characteristic having a large range similar to that of a general incandescent lamp. The semiconductor light emitting device lamp includes a light emitting device for emitting light in all directions and reflection plates arranged at a front surface and a lateral surface of the light emitting device. The light emitted from the light emitting device is reflected from the reflection plate located at the front side and the reflection plate located at the lateral side and emitted to a rear side of the light emitting device. A reflection film is formed on all exposed portions of a surface of the substrate on which the light emitting device is mounted.

Abstract: A lighting fixture includes: a base; a plurality of optical sources attached on an upper surface of the base to emit light; a heat spreader attached to the base to radiate heat emitted from the plurality of optical sources; and a light diffusion lens disposed on the upper surface of the plurality of optical sources to refract light emitted from the plurality of optical sources and to increase an irradiation angle of light. In the lighting fixture, an irradiation angle of light emitted from an optical source is close to that of a general electric-light bulb and thus a light distribution characteristic of the lighting fixture may be improved.

Abstract: A spread lens including a first lens surface through which the emitted light from the light emitting device is inputted; a second lens surface spreading the inputted light to an outside; refraction parts which extend between both side ends of each of the first and second lens surfaces, are formed in a concave-convex shape, and refract the emitted light from the light emitting device; and support parts which extend at both side ends of the second lens surface and separate the refraction parts and the light emitting device from each other.

Abstract: There are provided an optical lens and a lighting apparatus using the same. The optical lens includes an incidence part provided as a light incident area and including a micro lens array formed on at least a partial region of a surface thereof; a reflection part spaced apart from the incidence part by a predetermined distance and reflecting at least a certain amount of light having passed through the incidence part; and a side surface part connecting the incidence part and the reflection part and transmitting the certain amount of light reflected by the reflection part. In the case of using the optical lens, when light incident from the light source is emitted to the outside, an angle at which the light is emitted therefrom is enlarged, whereby an orientation angle of the light source is improved.