Linear light fixture with diffuser

摘要

A light fixture is provided that includes a plurality of light emitting sources, such as e.g., LEDs, that are arranged along a longitudinal direction. A heat sink provides a support structure for the lights while also assisting with the dissipation of heat. A diffuser covers the light emitting sources and is also supported by the heat sink. One or more optical elements such as e.g., a reflector or internally reflecting lens may be used to help direct light rays from the light emitting sources. Certain features may be added at the ends of the light fixture for mounting upon a surface and/or for further controlling the direction of light rays projecting from the light fixture. The light fixture is suitable for a variety of applications including e.g., the illumination of products displayed on shelving for consumer viewing.

主权项

1. A light fixture, comprising:
at least one heat sink defining a longitudinal direction; at least one circuit board attached to said at least one heat sink; a plurality of light emitting sources mounted to said at least one circuit board, said light emitting sources spaced apart from each other; a diffuser extending along the longitudinal direction and attached to said at least one heat sink, said diffuser covering said light emitting sources; and a reflector extending along the longitudinal direction, said reflector defining a plurality of cavities, with each of said cavities containing at least one of said light emitting sources, each of said cavities comprising one or more light reflective surfaces for reflecting light away from the light fixture; wherein each of said cavities comprises:
a first pair of light reflective surfaces positioned in an opposing manner about at least one of said light emitting sources, said first pair of light reflective surfaces having a first parabolic shape in a plane parallel to said at least one circuit board; anda second pair of light reflective surfaces positioned in an opposing manner and with said first pair of light reflective surfaces about at least one of said light emitting sources, said second pair of light reflective surfaces having a second parabolic shape in a plane parallel to said at least one circuit board, said second parabolic shape different from the first parabolic shape.