Mixed light LED light source and LED lighting equipment

Abstract

The invention discloses a mixed light LED light source, which comprises a substrate and a plurality of LED devices. The LED devices are fixedly connected to the substrate, the LED devices comprise a yellow-green light LED device and a red light LED device, the yellow-green light LED device comprises a blue light chip and yellow-green light fluorescent powder, and the red-light LED device comprisesa blue-light chip and red-light fluorescent powder. According to the invention, two kinds of fluorescent powder capable of mutually absorbing exciting light of each other are separately arranged on different LED devices, and then the yellow-green light and the red light are emitted towards the light emitting direction of the LED device, so that the yellow-green light and the red light are prevented from entering fluorescent powder which can absorb the yellow-green light and the red light, light absorption among different fluorescent powder is effectively eliminated, the light conversion rateof the light mixing LED light source is greatly improved, and the internal friction of the device is reduced; and meanwhile, the proportion of various colored lights in the mixed light LED light source is easier to regulate and control, and the fine regulation of the color of the emergent light can be realized. The invention further provides LED lighting equipment with the beneficial effects at the same time.

Description

technical field [0001] The invention relates to the field of novel lighting equipment, in particular to a mixed-light LED light source and LED lighting equipment. Background technique [0002] The general lighting market can be divided into two parts: traditional lighting and LED lighting. Benefiting from government restrictions on traditional lighting and the energy-saving and environmental protection features of LED technology, LED lighting is rapidly replacing the traditional lighting market. In the lighting market, the market has the largest market size and transaction volume The highest is the mixed light LED lighting, and the most common of the mixed light LED is the white light LED lighting device. [0003] Let’s take the exposure LED as an example. One of the light-emitting principles of white LED devices is that the blue-light chip excites the yellow-green phosphor and the red phosphor on the same chip, and finally mixes them into white light. Because the blue-light...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a mixed-light LED light source and LED lighting equipment to solve the problems of low light conversion rate and large internal consumption of LED equipment using mixed phosphor powder in the prior art

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