An optic assembly for a light emitting diode mounted to a printed circuit board has a primary lens defined by a primary lens anterior surface and an opposed primary lens rear taper with a tip facing the light emitting diode. A secondary lens with a secondary lens anterior surface and an opposed secondary lens posterior surface faces the printed circuit board. The secondary lens defines a central cavity with the primary lens being disposed therein.

Disclosed is a luminaire such as an LED downlight which is suitable for mounting in ceiling cavities of commercial environments. An example luminaire (200) comprises a light source (202) including an integral primary optic which is configured to transmit light toward a second optic (214). The second optic (214) is a lens configured to receive light from the light source (202) via the primary optic and transmit at least part of the received light toward a circular reflector (201). The circular reflector (201) is configured to direct light received from the second optic (214) away from the luminaire (204). A shape of the second optic (214) is interdependent with a shape of the circular reflector (201), and the shape of the second optic (214) and circular reflector (201) act in combination to transmit light away from the luminaire with a non-circular illuminance distribution (206).

Disclosed is a luminaire such as an LED downlight which is suitable for mounting in ceiling cavities of commercial environments. An example luminaire (200) comprises a light source (202) including an integral primary optic which is configured to transmit light toward a second optic (214). The second optic (214) is a lens configured to receive light from the light source (202) via the primary optic and transmit at least part of the received light toward a circular reflector (201). The circular reflector (201) is configured to direct light received from the second optic (214) away from the luminaire (204). A shape of the second optic (214) is interdependent with a shape of the circular reflector (201), and the shape of the second optic (214) and circular reflector (201) act in combination to transmit light away from the luminaire with a non-circular illuminance distribution (206).

A light source unit and a display device that are further thinned while evenness in brightness on an emission surface is secured are provided. A light source unit and a display device of the present invention include a light source installation surface on which at least one micro light source is installed, a base that is arranged with the light source installation surface and has a light-transmitting property, a reflection pattern that is formed on a first surface of the base positioned on a light source installation surface side based on light distribution characteristics of the at least one micro light source, and a low reflection pattern that is formed in a region of the light source installation surface positioned around the at least one micro light source based on the light distribution characteristics. A reflectivity in the region of the light source installation surface in which the low reflection pattern is formed is less than a reflectivity in a region other than the region in which the low reflection pattern is formed.

A system can include a light emitting diode (LED) and a transparent structure disposed over the LED. The transparent structure includes a first surface that reflects light extracted from the LED and incident on the first surface. The transparent structure also includes an exit surface opposite the first surface. The exit surface includes a first area that is textured to diffuse light over a first angular range and a second area that is textured to diffuse light over a second angular range. The second angular range is wider than the first angular range.

A system can include a light emitting diode (LED) and a transparent structure disposed over the LED. The transparent structure includes a first surface that reflects light extracted from the LED and incident on the first surface. The transparent structure also includes an exit surface opposite the first surface. The exit surface includes a first area that is textured to diffuse light over a first angular range and a second area that is textured to diffuse light over a second angular range. The second angular range is wider than the first angular range.

The present invention provides a reflective member (10) for emitting a diffused second reflected light (63) in a second direction different from a first direction, if an incident light (61) is incident in the first direction, and for emitting a concentrated second reflected light (73) in the first direction, if an incident light (71) is incident in the second direction, the reflective member comprising: a reflective profile surface (13) for reflecting the incident light; and a first reflective surface (14) and a second reflective surface (15) provided in an alternating manner on the reflective profile surface (13) along the lengthwise direction thereof. The reflective member (10) may further comprise a film member (11) having a first surface having the reflective profile surface (13), and a second surface facing the first surface.

The present invention provides a reflective member (10) for emitting a diffused second reflected light (63) in a second direction different from a first direction, if an incident light (61) is incident in the first direction, and for emitting a concentrated second reflected light (73) in the first direction, if an incident light (71) is incident in the second direction, the reflective member comprising: a reflective profile surface (13) for reflecting the incident light; and a first reflective surface (14) and a second reflective surface (15) provided in an alternating manner on the reflective profile surface (13) along the lengthwise direction thereof. The reflective member (10) may further comprise a film member (11) having a first surface having the reflective profile surface (13), and a second surface facing the first surface.

A light source apparatus includes light sources emitting first and second polarized light, an optical element transmitting one of the polarized light and reflecting the other, a polarization rotator generating polarization rotated light from the first polarized light, a wavelength convertor converting the second polarized light into wavelength converted light, and a controller. The optical element generates emitted light by combining the wavelength converted light and polarization rotated light. The controller acquires respective deterioration amounts of the light sources, and controls, based on respective changes in light emission amounts from the light sources acquired from the deterioration amounts, the light emission amount from at least one of the light sources for making different respective change amounts of the light emission amounts from the light sources, or changing a ratio between respective light emission amounts from the light sources.

A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe has a longitudinally extending wall. A plurality of light sources is disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A heat sink housing has a heat sink portion, an electronic housing portion and a plurality of fins. The heat sink housing receives the first condenser portion of the heat pipe. The heat sink housing separated from the electronic housing portion by a wall. The electronic defines a drive circuit volume comprising a drive circuit and temperature sensor. The drive circuit reduces current to the light sources in response to the temperature signal.