Device for improving uniformity of led light source through optical device

Abstract

The invention provides a device for improving the uniformity of an LED light source through an optical device, and the device comprises a light beam control component, the surface of the light beam control component comprises a bottom surface, a first top surface, a second top surface and an end surface, the middle part of the bottom surface is recessed inwards to form a containing cavity, a vertical line B perpendicular to the bottom surface is made at the midpoint of the peripheral bottom surface, and any point A is selected on the vertical line B; the distance between the point A and the peripheral bottom surface is R1, the distance between the point A and the vertical line B is R2, the area of an intersection line formed by the light incident surface and a plane parallel to the peripheral bottom surface at the point A is S1, R1 is inversely proportional to R2 and S1, the middle of the first top surface forms a concave curved surface towards the peripheral bottom surface, points X1, X2, Y1 and Y2 exist on the intersection line of the first top surface and the second top surface, and the distances between the points X1 and X2 and the vertical line B are equal. And the distances from the point Y1 to the vertical line B are equal to the distance from the point Y2 to the vertical line B. According to the device for improving the uniformity of the LED light source through the optical device, the uniformity of the light source can be improved, a display interface is clearer, and the light source is not dazzling.

Description

technical field [0001] The invention relates to the technical field of lighting equipment and display applications, in particular to a device for improving the uniformity of an LED light source with an optical device. Background technique [0002] Lighting devices are widely used in daily life or production activities, especially in the field of backlight sources such as TVs, monitors, and advertising lights. These fields require LED lights as backlight sources. However, in practical applications, multiple point backlights are used. The source is very dazzling, the stimulation to the eyes is very serious, the light emitted by the light source is relatively concentrated and not uniform. [0003] In view of this, it is necessary to improve the lighting device in the prior art to solve the above problems. SUMMARY OF THE INVENTION [0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention ...

AI Technical Summary

Problems solved by technology

[0002] Illumination devices are widely used in daily life or production activities, especially in the field of backlights such as TVs, monitors, and advertising lights. These fields require LED lights as backlights. However, in practical applications, multiple point backlights The light sources are very dazzling and irritating to the eyes. The light emitted by the light source is relatively concentrated and not uniform enough.

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