a kind of led

Abstract

The invention provides an LED. The LED comprises a packaging substrate, at least one invisible optical chip, at least one visible optical chip and a diffractive optical element. The invisible opticalchip and the visible optical chip are arranged on the packaging substrate. The diffractive optical element is arranged on one side, far away from the packaging substrate, of the visible optical chip,and is opposite to the visible light chip. The diffractive optical element is used for modulating visible light emitted by the visible optical chip and emitting light capable of forming a preset diffraction pattern. A driving circuit is borne on the packaging substrate and is connected with pins of the visible optical chip and the invisible optical chip. By using the LED, invisible LED light is identified by using the preset diffraction pattern formed by the visible light so that accidental injuries caused by a fact that human eyes cannot see or cannot accurately estimate luminous intensity ofthe invisible LED light are effectively reduced.

Description

technical field [0001] The present application relates to the technical field of light-emitting display, and in particular, to an LED. Background technique [0002] In the process of using invisible light LED devices, due to the extremely low visual function of the invisible light emitted by invisible light LED devices, it is difficult for the human eye to intuitively feel whether the LED device is on or not, and the corresponding luminous intensity, while many invisible lights will It will cause certain damage to the human body. For example, ultraviolet rays have strong lethality to organisms. Exposure to ultraviolet rays for a long time will harm the human body, especially if the human eye is exposed to excessive ultraviolet rays, it will cause damage to the human eye. Therefore, there are certain safety hazards in invisible light LED devices. Contents of the invention [0003] The purpose of the embodiment of the present application is to provide an LED, which uses a s...

AI Technical Summary

Problems solved by technology

[0002] In the process of using invisible light LED devices, due to the extremely low visual function of the invisible light emitted by invisible light LED devices, it is difficult for the human eye to intuitively perceive whether the LED device is turned on and the corresponding luminous intensity, while many invisible lights will It will cause certain damage to the human body, such as ultraviolet rays have strong lethality to organisms, long-term exposure to ultraviolet rays will harm the human body, especially if the human eye is exposed to excessive ultraviolet rays, it will cause human eye damage

Therefore, there are certain safety hazards in invisible light LED devices.

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