Retrofit-style lamp and fixture, each including a one-dimensional linear batwing lens

摘要

A retrofit-style lamp is disclosed. The retrofit-style lamp includes a plurality of light sources, and a one-dimensional linear batwing lens. The one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources. The retrofit-style lamp also includes a housing including the plurality of light sources, and attached to the one-dimensional linear batwing lens. The combination of housing and lens is then itself fitted with endcaps, including electrical connectors, for placement within a fixture, such as within an existing conventional fluorescent tube fixture located within a storage structure, for example a refrigeration case. Alternatively, the plurality of light sources, the one-dimensional linear batwing lens, and the housing may be formed, along with a power supply, as a standalone retrofit fixture for use in enclosed storage structures, such as refrigeration cases, where the retrofit fixture replaces a conventional fluorescent fixture.

主权项

1. A lamp comprising:
a plurality of light sources; a housing defining in part a region in which the plurality of light sources is located, wherein the housing includes a connector capable of connecting to a corresponding socket; an electrical component to deliver power to the plurality of light sources from the corresponding socket; and a one-dimensional linear batwing lens comprising:
a bottom edge of a lower portion of the one-dimensional linear batwing lens, wherein the bottom edge has a non-linear shape that results in a first cylindrical arc and a second cylindrical arc on opposite sides of a center of the bottom edge, wherein the first cylindrical arc has a first radius of curvature and the second cylindrical arc has a second radius of curvature;a left edge of an upper portion of the one-dimensional linear batwing lens, wherein the left edge is located above the housing;a right edge of the upper portion, wherein the right edge is located above the housing; anda first outer edge and a second outer edge of the upper portion;wherein the first outer edge extends convexly out from a center of the upper portion towards the left edge and the second outer edge extends convexly out from the center of the upper portion towards the right edge, defining a dip therebetween, wherein a first angle between the first outer edge and the left edge is obtuse, and wherein a second angle between the second outer edge and the right edge is obtuse.