A lighting fixture with reduced glare is provided. Lighting fixtures described herein use a lens assembly to redirect light away from a housing in order to reduce a unified glaring ratio (UGR) (e.g., when viewed crosswise or endwise). The lens assembly may further provide diffusive properties which result in a more pleasing and soft light over traditional lighting fixtures. In aspects described herein, the UGR of troffer-style lighting fixtures can be improved (e.g., reduced) through lens assemblies having one or more light redirection features configured to particularly redirect light emitted at high v-angles (e.g., light emitted sideways relative to the housing at v-angles greater than 70 degrees). For example, the lens assembly may include an inner prismatic surface of a lens, an inner lens, a louver assembly (e.g., over or under a lens), or a reflector to achieve this light redirection.

The present invention relates to an optical assembly for a spotlight, comprising: an optical element equipped with a set of lenses, said lenses being adapted to cooperate with a first group of light sources for said spotlight, such as LEDs, wherein said lenses are adapted to generate primary light beams and are spaced apart from one another using inter-lens spaces, a grille for filling at least part of said inter-lens spaces of said set of lenses, adapted to cooperate with a second group of light sources for said spotlight, such as LEDs, wherein said grille is adapted to generate a secondary light effect, and a support element, adapted to support the set of lenses, in the inter-lens spaces,

wherein the grille and support element are adapted to be superimposable, enclosing the optical element between the inner face of the grille and the upper face of the support element, thereby fixing the set of lenses in order to form the optical assembly.

The present invention relates to an optical assembly for a spotlight, comprising: an optical element equipped with a set of lenses, said lenses being adapted to cooperate with a first group of light sources for said spotlight, such as LEDs, wherein said lenses are adapted to generate primary light beams and are spaced apart from one another using inter-lens spaces, a grille for filling at least part of said inter-lens spaces of said set of lenses, adapted to cooperate with a second group of light sources for said spotlight, such as LEDs, wherein said grille is adapted to generate a secondary light effect, and a support element, adapted to support the set of lenses, in the inter-lens spaces,

wherein the grille and support element are adapted to be superimposable, enclosing the optical element between the inner face of the grille and the upper face of the support element, thereby fixing the set of lenses in order to form the optical assembly.

A method of making illumination systems for illuminating building interiors comprises positioning first and second opaque, rigid reflective side walls at a distance from one another with reflective surfaces facing each other. The method further comprises positioning a reflective grid panel with parallel longitudinal walls and parallel transverse walls joining the longitudinal walls between the side walls, defining rectangular light-transmitting openings. The method also includes positioning an LED light source above the grid panel to illuminate it at incidence angles ranging from 0° to at least 45°. Additionally, the method comprises positioning a light diffusing sheet of optically transmissive dielectric material approximately coextensive with the grid panel parallel to the grid panel between the side walls above the grid panel. The transverse walls of the grid panel and the reflective side walls are configured to diffusely reflect portions of light transmitted through the rectangular openings.

Example embodiments relate to light emitting devices with adaptable glare classes. One embodiment includes a light emitting device. The light emitting device includes a carrier. The light emitting device also includes a plurality of light sources disposed on the carrier. Additionally, the light emitting device includes a lens plate disposed on the carrier. The lens plate includes a flat portion and a plurality of lenses covering the plurality of light sources. Further, the light emitting device includes a light shielding structure that includes a plurality of reflective barriers, each including a base surface disposed on the flat portion, a top edge at a height above the base surface, and a first reflective sloping surface connecting the base surface and the top edge. The first reflective sloping surface is configured for reflecting light rays emitted through one or more associated first lenses of the plurality of lenses.

The purpose of the present invention is to realize a lighting device of small light distribution angle and less leakage light and further to realize a lighting device in which the light beam is easy to control. The following is an example of the structure to meet the above purpose. A lighting device including: a light guide; LEDs set at a side surface of the light guide; a prism sheet set on a major surface of the light guide, in which a first louver which extends in a first direction and, a second louver which extends in an orthogonal direction to the first direction are superposed on the prism sheet.

Light fixtures often have bright spots caused by the light sources that can be unpleasant or uncomfortable to look at. A light system is provided that diffuses the light. The light system includes an exterior body defining a void therein and an internal structure positioned within the void. The internal structure comprises at least a web and a flange extending from the web, and one or more lights positioned along the length of the web. The internal structure supports the exterior body.

Light fixtures often have bright spots caused by the light sources that can be unpleasant or uncomfortable to look at. A light system is provided that diffuses the light. The light system includes an exterior body defining a void therein and an internal structure positioned within the void. The internal structure comprises at least a web and a flange extending from the web, and one or more lights positioned along the length of the web. The internal structure supports the exterior body.

A light output reducing shutter system, having a light system with a shutter barrel assembly, a solid shutter assembly, a first translucent shutter assembly, and a second translucent shutter assembly, wherein the solid shutter assembly, the first translucent shutter assembly, and the second translucent shutter assembly are positioned in a same focal plane when a light is projected from the light system. The first translucent shutter assembly has a first degree of translucency and the second translucent shutter assembly has a second degree of translucency. The shutter barrel assembly has a first set of slots, a second set of slots, and a third set of slots to receive the solid shutter assembly, the first translucent shutter assembly, and the second translucent shutter assembly respectively. The first set of slots, the second set of slots, and the third set of slots each have four slots around the shutter barrel assembly.

Generally, this disclosure enables various technologies for directed illumination. For example, this disclosure enables a sign (e.g., an electronic billboard) having a louver board with a plurality of brims and a plurality of channel groups, where the brims one-to-one shade the channel groups.