Bowl-dish-shaped LED lamp

Abstract

The invention discloses a bowl-dish-shaped LED lamp. The bowl-dish-shaped LED lamp comprises a lamp shell, a lamp holder, an arc lens, a bowl-shaped reflection cup, an LED light source and a driver. The bowl-shaped reflection cup is embedded in the lamp shell. The LED light source is arranged at the cup bottom of the bowl-shaped reflection cup and faces the arc lens. The driver arranged in the lamp shell is connected with the lamp holder and the LED light source. A plurality of first lens areas and a plurality of second lens areas are formed on the inner side wall of the arc lens, wherein the first lens areas and the second lens areas are arranged at intervals. A plurality of hexagon small lenses the same in specification are evenly distributed in the first lens areas. A plurality of rhombus small lenses the same in specification are evenly distributed in the second lens areas. By utilization of the bowl-dish-shaped LED lamp, under the action of combination of optical reflection of the bowl-shaped reflection cup and optical refraction of the arc lens, the angle of emergent light rays of the bowl-dish-shaped LED lamp can be adjusted to the best state, and the lighting intensity of the bowl-dish-shaped LED lamp is softer and more uniform.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to a dish-shaped LED lamp. Background technique [0002] As green lighting, LED (Light Emitting Diode) lamps are attracting more and more attention due to their significant advantages such as high brightness, energy saving and environmental protection, good impact and shock resistance, long service life, and high light efficiency. Without the reflection of the reflective ring or the refraction of the lens, the light distribution characteristics of the LED light source conform to the radiation law of the Lambertian illuminant. This type of illuminant is also called a cosine illuminant. When the light emitted by the LED light source is not distributed, the light intensity is very uneven, and it is impossible to control the light emitted by the LED light source. [0003] In order to obtain a relatively uniform lighting effect, a reflector lampshade is generally used to distribute...

AI Technical Summary

Problems solved by technology

The disadvantage is that due to the small light-emitting area of ​​the COB light source and the limitation of the angle of the reflector, the small light-emitting area results in a small illuminated area at an equidistant position, and uneven light distribution in the illuminated area after multiple refractions through the reflective cup Phenomenon, causing defects such as dark spots and macula

Moreover, PMMA is easy to cause deterioration under long-term high temperature, which reduces the light transmittance and increases the light decay of the lamp.

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