Absorption-type anti-blue-ray LED lens and preparation method thereof

Abstract

The invention discloses an absorption-type anti-blue-ray LED lens and a preparation method thereof. The absorption-type anti-blue-ray LED lens comprises an LED lamp source and a lens body for changingthe convergence characteristic of light rays emitted by the LED lamp source. The absorption-type anti-blue-ray LED lens is characterized in that the lens body is made of a lens base material, a material with the scattering and diffusion effects and a blue ray absorption material according to the proportion of 1:500:0.6 to 10:200:0.3. The absorption-type anti-blue-ray LED lens has the advantages that the blue ray absorption material is added into the LED lens, so that the blue ray filtering effect is much higher than a reflective blue ray material; blue ray radiation can be controlled from thesource of LED products; the blue ray absorption material is directly added into the LED lens, the adding proportion of the blue ray absorption material is different, and thus the blue ray filtering effect can be improved with the increase of thickness of the lens; and the technology is simple, the cost is low, assembly of an anti-blue-ray film or a blue ray filtering sheet does not need to be additionally taken into account, production is convenient, and equipment application and promotion can be achieved advantageously.

Description

technical field [0001] The invention relates to the fields of optical lighting, energy saving and environmental protection, in particular to an absorption type anti-blue LED lens and a preparation method thereof. Background technique [0002] Due to the advantages of long life, small size, high luminous efficiency, energy saving, good reliability, and easy control that traditional light sources cannot match, LEDs have gradually been used in lamps, TVs, computer screens, smartphones, and tablet computers. All aspects, and maintain a momentum of rapid development. However, with the continuous improvement of LED light efficiency, its brightness has also been continuously improved, and the power has risen from milliwatts to tens of watts. The resulting photobiological safety has attracted more and more attention. The light emitted by these products (especially LED lamps and displays) contains a large amount of high-energy short-wave blue light. In 1966, Noell et al. found that...

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Problems solved by technology

[0003] The harm of blue light is getting more and more attention. Existing LED lighting products rarely consider anti-blue light, while anti-blue light is mostly used in glasses and display screens (mobile phones, computers, etc.), most of which use electroplating or filming. A thin layer of semi-absorbing treatment has a very poor filtering effect on blue light. Therefore, as LED lighting products are becoming more and more popular, it is urgent to prevent blue light hazards from the source.

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