Design method of light reflection cup of large-angle LED (Light Emitting Diode) bulb lamp

Abstract

The invention discloses a design method of a light reflection cup of a large-angle LED (Light Emitting Diode) bulb lamp. The design method comprises arranging light sources which are arranged in the LED bulb lamp on the inner side and the outer side of the light reflection cup respectively to enable the light sources and the bottom surface of the light reflection cup to be located on the same horizontal plane; performing light distribution division with a single light source which is arranged outside as a benchmark and performing analysis on the plane the single light source passing through; performing equal luminous flux subdivision on the irradiation light of the light source to enable every small portion to irradiate on a corresponding object; calculating a series of points through an MATLAB according to the law of refraction and reflection, fitting the points in PROE software and performing modeling and exporting a model; importing the obtained model into optical software TRACEPRO and performing optical simulation validation; outputting the final model if a validation result meets the design requirements. According to the light reflection cup of the large-angle LED bulb lamp, the light emitting angle of the LED bulb lamp can be increased, the light distribution is uniform, the efficiency is high, the light emitting angle of the LED bulb lamp can be greatly increased due to the light reflection cup which is arranged on a substrate of the traditional plane arrangement LED bulb lamp, the structure is simple, and assembly and production are convenient.

Description

【Technical field】 [0001] The invention relates to a design method of an optical element, in particular to an energy-saving and environment-friendly LED bulb lamp with a large light-emitting angle. 【Background technique】 [0002] Traditional incandescent lamps have high energy consumption and short lifespan. In the environment of global resource shortage, LED bulbs have low energy consumption, long lifespan and do not contain harmful elements such as Pb and Hg that are harmful to the environment. It is a new type of replacement for traditional incandescent bulbs. Energy-saving lamps; the LED lighting angle of the plane layout generally does not exceed 120 degrees, even if the LED bulb lamp with a diffuser shade generally does not exceed 150 degrees, the irradiation range is narrow, and the dark area above the lamp is large, which has certain defects ; The lighting angle of non-planar LEDs can generally exceed 300 degrees, but it is limited to low power, and it brings certain ...

AI Technical Summary

Problems solved by technology

[0002] Traditional incandescent lamps have high energy consumption and short lifespan. In the environment of global resource shortage, LED bulbs have low energy consumption, long lifespan and do not contain harmful elements such as Pb and Hg that are harmful to the environment. It is a new type of replacement for traditional incandescent bulbs. Energy-saving lamps; the LED lighting angle of the plane layout generally does not exceed 120 degrees, even if the LED bulb lamp with a diffuser shade generally does not exceed 150 degrees, the irradiation range is narrow, and the dark area above the lamp is large, which has certain defects ; Non-planar arrangement of LED lighting angle can generally exceed 300 degrees, but it is limited to low power, and it brings certain difficulties to assembly and mass production

Under the traditional secondary optical design method, the light-emitting angle of the LED bulb lamp can reach 300 degrees, but the light efficiency is low and the light distribution is poor.

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