Light distribution lens and LED (light-emitting diode) lamp with light distribution lens

Abstract

Provided are a light distribution lens and an LED lamp with the light distribution lens. The light distribution lens comprises a light transmitting area and a light distribution area arranged around the central axis of the light transmitting area. The light distribution area comprises a light distribution incident surface and a light distribution emitting surface which are oppositely arranged. The light distribution incident surface comprises a plurality of light incident rings embedded in the light distribution incident surface. The adjacent two light incident rings are connected with each other. Every light incident ring comprises a plurality of the same number of spherical convex surfaces in sequential and uniform arrangement around a central axis. The radiuses of the spherical convex surfaces on the same light incident ring are of the same. The spherical convex surfaces on the same light incident ring are connected with one another. According to the light distribution lens and the LED lamp with the light distribution lens, the light distribution area is provided with the plurality of light incident rings, the adjacent two light incident rings are connected with each other, the spherical convex surfaces on the same light incident ring are connected with one another, a plurality of LED signal lamps emit light towards the spherical convex surfaces, and light spots of the plurality of LED signal lamps are diffused, so that the light source coverage of the LED signal lamps is widened, the light efficiency is improved, and accordingly the human eye recognition is facilitated.

Description

technical field [0001] The invention relates to the lighting field, in particular to a light distribution lens and an LED lamp with the light distribution lens. Background technique [0002] As a new type of green light source product, LED is more and more widely used in the lighting field due to its high luminous efficiency, low power consumption, and long service life. In portable mobile lighting fixtures, such as flashlights, are widely used. Existing LED lamps can not only realize the LED lighting function, but also can match the function of signal lights. [0003] Most of the transparent parts of LED lamps on the market use simple flat glass. Such transparent parts are generally only suitable for LED lamps with only the main light source. For flashlights with signal lights, simple flat glass transparent parts cannot spread the light spots of signal LED lights, so that the coverage of signal lights is narrow, which is not easy. recognized by the human eye. Contents ...

AI Technical Summary

Problems solved by technology

Such transparent parts are generally only suitable for LED lamps with only the main light source. For flashlights with signal lights, simple flat glass transparent parts cannot spread the light spots of signal LED lights, so that the coverage of signal lights is narrow, which is not easy. recognized by human eyes

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