Lens and lens group for plug-in LED lamp beads

Abstract

The invention discloses a lens and a lens group for plug-in LED lamp beads. According to the lens and the lens group for the plug-in LED lamp beads, single lenses are included; the single lenses are hollow semi-elliptical solids, externally provided with lens emergent faces formed by smooth spline surfaces, and internally provided with lens incident faces formed by smooth hemispherical surfaces, and lamp bead accommodating cavities are formed in the single lenses; a certain number of single lenses form the lens group through regular array combination; the lens group is provided with lens group installation faces and lens group clamping hooks used for being assembled with other mechanism pieces; a lens group accommodating cavity for accommodating a cable, and a lens group waterproof ring accommodating cavity for accommodating a waterproof ring are formed in the lens group; the plug-in LED lamp beads are arranged in the centers of the lamp bead accommodating cavities, and the gap between the top face of each lamp bead and the corresponding lens incident face is not more than 0.5 mm; the thickness of the lens between each lens incident face and the corresponding lens emergent face is 0.5-2 mm; each plug-in LED lamp bead is placed in the corresponding lamp bead accommodating cavity; and the lens group is made of polycarbonate or organic glass.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and in particular relates to a lens and a lens group for inserting LED lamp beads. Background technique [0002] In order to make the light emitted by the LED chip emit better, get the maximum utilization, and meet the use requirements in the lighting area, it is necessary to design the optical system of the LED. Among them, the design in the process of lamp bead packaging is called primary optical design; while the optical design outside of lamp bead packaging is called secondary optical design, also called secondary light distribution design. The primary optical design is mainly to determine the light-emitting angle, light intensity, square distribution, etc. of the LED; the secondary optical design is to concentrate the light of the lamp beads into the application lighting area. [0003] At present, most of the industry uses SMD LED lamp beads and secondary optical lenses to achieve the ...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this method is that the lamps do not perform secondary light distribution, and cannot apply the light to the use area to the maximum extent, or even effectively apply it.

For example, lamps without secondary light distribution are used as street lamps, which cannot meet the "Road Lighting Design Standards"

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