Adjustable LED street lamp light source

Abstract

The invention discloses an adjustable LED street lamp light source which comprises a packaging substrate, a chipset mounted on the packaging substrate, a dimming device comprising a threaded sleeve and a rotary drum which are matched, a lens group comprising a concave lens and a convex lens, and a fluorescent tube, wherein the concave lens is arranged on the threaded sleeve, the convex lens is arranged at the front end of the rotary drum, and the fluorescent tube is arranged between the chipset and the lens and filled with a liquid fluorescent material. The invention solves the technical problem and provides the LED street lamp light source capable of adjusting the light-focusing degree. According to the adjustable LED street lamp light source disclosed by the invention, the lens group matched with and controlled by the dimming device is adopted, so that focal length match among various lenses of the lens group is achieved, further, light type of the light source can be adjusted and controlled, and the controllability of the LED street lamp light source is improved effectively.

Description

[0001] technical field [0002] The invention relates to a street lamp, in particular to an adjustable LED street lamp light source. Background technique [0003] LED (Light Emitting Diode) packaging refers to the packaging of light-emitting chips, which is quite different from integrated circuit packaging. The packaging of LED not only needs to be able to protect the wick, but also to be able to transmit light, so the packaging of LED has special requirements for packaging materials. LED packaging is to complete the output of electrical signals, protect the normal operation of the die, and output visible light. It has both electrical parameters and optical parameters design and technical requirements, and ordinary packaging technology cannot be simply used. [0004] The core light-emitting part of the LED is a pn junction tube core of p-type and n-type semiconductors. When the pn junction passes current, electrons and holes move and combine, it will emit visible light,...

AI Technical Summary

Problems solved by technology

Encapsulating a single large-size chip or multiple small-size chips on a metal base can also effectively increase the power and brightness of the LED, but it is also a small increase, because the heat dissipation principle is not reasonable, and it still cannot solve the problem when the chip is working. The problem of high heat makes LED chips easy to attenuate and collapse, and the process is difficult and costly, so it is not easy to promote

[0008] In addition, dozens or hundreds of ordinary LED lights are assembled at the same time. The LEDs are highly concentrated on a substrate, and the high heat cannot be dissipated when emitting light, which limits the application range of LED light sources. At the same time, it can be used as urban lighting. Street lamps have strict requirements on effective power, service life and light intensity.

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