Light distribution lens, light distribution lens module and LED (light-emitting diode) energy-saving lamp

Abstract

The invention discloses a light distribution lens. The light distribution lens is characterized in that the upper surface of the light distribution lens is of a U shape, the upper surface is composed of multiple sections of smooth curved surfaces which are connected to form a non-smooth curved surface, and a non-smooth curved surface is formed between every two adjacent sections of smooth curved surfaces in the multiple sections of smooth curved surfaces; and the center of a bottom surface of the light distribution lens is provided with a groove for holding an LED (light-emitting diode) light source. The invention also discloses a light distribution lens module with the light distribution lens and an LED energy-saving lamp with the light distribution lens. The light distribution lens, the light distribution lens module and the LED energy-saving lamp provided by the invention have the advantages that light spots are more uniform and good lighting effect are achieved; and the light distribution lens, the light distribution lens module and the LED energy-saving lamp are widely applied to an illumination field.

Description

technical field [0001] The invention belongs to the field of lenses, and in particular relates to a light distribution lens, a light distribution lens module and an LED energy-saving lamp. Background technique [0002] Such as figure 1 and figure 2 As shown, the curved surface of the existing light distribution lens is a smooth curved surface. If the curved surface is divided into small curved surfaces numbered 1, 2, 3, 4, ..., N, the light is irradiated from the inside through each small curved surface , the irradiated area numbers are 1, 2, 3, 4, ..., N, the small curved surface numbered 1 irradiates the area numbered 1, and the small curved surface numbered 2 irradiates the area numbered 2, ..., the numbered N The small curved surface of -2 irradiates the area numbered N-2, the small curved surface numbered N-1 irradiates the area numbered N-1, and the small curved surface numbered N irradiates the area numbered N. In this case, the irradiated Areas tend to form uneve...

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Problems solved by technology

[0003] In view of the above shortcomings, the object of the present invention is to provide a light distribution lens with good lighting effect, which can effectively solve the problem of poor lighting effect in the prior art.

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