Flash LED of mobile phone

Abstract

The invention provides a flash LED of a mobile phone. A circuit board is provided with a first through hole; the circuit board is provided with an inner ring wall and an outer ring wall which form anoptical cavity, and a second through hole is formed in the inner ring wall; an inner cavity and an outer cavity is formed by an inner light reflecting layer, a middle light reflecting layer and an outer light reflecting layer in the optical cavity; two first LED chips are arranged in the inner cavity, and two second LED chips are arranged in the outer cavity; an inner light guide plate is arrangedin the inner cavity, and first fluorescent glue layers are covered with the first LED chips; an outer light guide plate is arranged in the outer cavity, and second fluorescent glue layers are coveredwith the second LED chips; the inner light guide plate and the outer light guide plate are covered with a diffusion layer and a Fresnel lens; a transparent protection cover is arranged at the top endof the inner ring wall and the outer ring wall, and a third through hole is formed in the transparent protection cover; the first through hole, the second through hole and the third through hole areconnected sequentially to form a lens cavity; and the circuit board is provided with a driving circuit for the first LED chips and the second LED chips. According to the flash LED, the light supplementary intensity and the light supplementary uniformity can be improved, silhouettes are avoided, the color temperature can be adjusted, and different requirements of users are met.

Description

technical field [0001] The invention relates to the technical field of mobile phones, in particular to a supplementary light for mobile phones. Background technique [0002] Mobile phones have become a necessity in people's lives. If you take pictures in the daytime with sufficient light sources, you can generally meet the needs of consumers, but in places with insufficient light or in dark scenes, the photos will be unclear due to insufficient light sources. Uneven light intensity and other conditions seriously affect the shooting effect of photos. [0003] A flashlight, as a common light reinforcement device, has been widely used in mobile phones. The common flash built in the body of the mobile phone is usually located on one side of the camera, which will make the subject too sharp and create a silhouette on the left or right side of the subject, resulting in poor shooting quality. Limited by its structural size and battery size, the built-in flash of the mobile phone ...

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a mobile phone supplementary light, which solves the problems of insufficient supplementary light intensity and uneven light intensity of mobile phone flashlights in the prior art

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