A kind of LED bulb lamp with aspherical corner mirror structure

Abstract

The invention discloses an LED bulb lamp with an aspheric-surface angle lens structure. The LED bulb lamp with the aspheric-surface angle lens structure structurally comprises a lamp shell (1), an aspheric-surface angle lens (2), LEDs (3), an aluminum substrate or a ceramic substrate (4), a heat radiation body (5), a driving power source (6), a lamp supporting frame (7) and a lamp head (8), and is characterized in that the specially designed aspheric-surface angle lens (2) is arranged inside the lamp and is made of PC or PMMA materials. The angle lens (2) transmits 65%-75% of light source light rays (9) of the LEDs (3) and reflects about 25%-35% of the light source light rays (9), the light source light rays illuminate out of the lamp shell at a larger angle, and therefore the light illumination angle of the whole LED bulb lamp is increased. The LED bulb lamp with the aspheric-surface angle lens structure meets the requirements for light intensity distribution and the light illumination angle of the bulb lamp, and improves the uniformity and comfort of the light source light rays.

Description

technical field [0001] The invention relates to an LED lighting fixture, in particular to an LED bulb lamp with an aspherical corner mirror structure. Background technique [0002] With the energy saving and the ban on the sales of traditional incandescent lamps in various countries, LED lighting fixtures have penetrated into various lighting fields as the fourth-generation new light source. [0003] The continuous progress of semiconductor chip technology and phosphor technology has made great progress in the light efficiency, life and cost control of white LEDs. LED is superior to traditional lighting products in terms of energy saving and environmental protection; from the perspective of market trends, bulb lamps with cheaper prices, higher luminous efficiency, higher reliability and safety obviously have stronger competitiveness in the field of LED lighting. [0004] LED bulbs are the best choice to replace incandescent lamps. Using high-brightness LEDs as the light so...

AI Technical Summary

Problems solved by technology

The existing specially designed lens is added between the LED light source and the lamp housing. Although this structure can increase the angle of light irradiation, it affects the uniformity of light emission of the entire LED bulb lamp due to the converging effect of the lens on the light. It is unrealistic to apply it; there are also researchers who add plane corner mirrors inside the bulb to increase the luminous angle to a certain extent, but this kind of corner mirrors are not as good as the light distribution of bulb lamps in terms of illumination uniformity and irradiation angle. Require

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