Optical lens module and luminous device thereof

Abstract

The invention discloses an optical lens module and a luminous device of the optical lens module. The optical lens comprises a lens body, an incidence surface, a refraction surface, an outer side refraction surface and a partial penetration partial reflection unit, wherein the lens body is provided with a center shaft, the incidence surface is arranged at the bottom of the lens body, the refraction surface is arranged on the top of the lens body and corresponds to the incidence surface, the reflection surface comprises a reflection arc surface and an auxiliary reflection surface arranged at the lateral side of the reflection arc surface, the outer side reflection surface is arranged at the lateral part of the lens body, and the partial penetration and partial reflection unit is arranged onthe top of the lens body and is covered on the reflection surface.

Description

technical field [0001] The invention relates to an optical lens module, in particular to an optical lens module with floodlight effect and improved light shape uniformity and a light emitting device thereof. Background technique [0002] In recent years, the demand for high-efficiency and long-life light-emitting diodes has greatly increased in display and lighting optical devices. For example, an existing light-emitting diode may include one or more semiconductor light-emitting elements, and the semiconductor light-emitting element may be used to emit white light formed by mixing three primary colors (RGB) to provide illumination. [0003] However, the LED is a directional light source, so the light-emitting characteristics of the LED will form a point light source lighting effect like a spotlight, and a dark area will be formed outside the lighting area, so it is different from traditional lighting fixtures (such as fluorescent lamps, incandescent lamps, etc.) Light bulbs...

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Problems solved by technology

[0003] However, the LED is a directional light source, so the light-emitting characteristics of the LED will form a point light source lighting effect like a spotlight, and a dark area will be formed outside the lighting area, so it is different from traditional lighting fixtures (such as fluorescent lamps, incandescent lamps, etc.) Light bulbs or energy-saving light bulbs) have quite different "full light source" lighting effects; traditionally, optical elements can be placed in front of the light axis of LEDs to adjust their lighting range, but at present it can only reduce the range of dark areas. Still can't solve the problem of bright and dark areas

For this reason, lamps made of light-emitting diodes are more often used for specific purposes of local lighting, such as commercial projection, spotlight, indication, etc., but still cannot be used for office or home lighting purposes

[0004] On the other hand, some literature proposes to use a specific lens to form a reflective film by means of coating, so as to reflect the light to an angle approximately perpendicular to the optical axis, so as to form a light distribution in the range of ±90°; but this kind The lens sacrifices the light energy distribution of 0~±70° and ±120°~±180°, which makes the distribution of light shape uneven, so it will also form a dead angle of illumination

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