Light source device

Abstract

The present invention discloses a light source device comprising a light source, a light bat-wing type optical film and a glare control film. The light source comprising at least one light emitting element, having a glossy. The bat-wing light control type optical film having a first microstructure layer and a second microstructure layer, are disposed in the bat wing light type optical film opposite to a first surface and a second surface, wherein the first surface is exit surface facing the light-emitting elements. The microstructure of the first layer comprises a plurality of first prism type structure, and the second microstructure layer comprises a plurality of cylindrical lenses. The glare control film having a third microstructured layer disposed on a third surface glare control film, wherein the third surface is a smooth back to the light emitting element, the third layer comprises a plurality of second microstructured prism type structure, and the bat-wing light optical film is disposed between the light source and the glare control film.

Description

technical field [0001] The invention relates to a light source device, in particular to a light source device applied to lighting. Background technique [0002] White light-emitting diodes (Light-Emitting Diodes, LEDs) have the advantages of high lumen efficiency, low energy consumption, high reliability, and long life, and are gradually being used in daily life. [0003] However, LEDs usually output directly in the Lambertian light type, so the light intensity of the central viewing angle is strong and the light intensity of the peripheral viewing angle is weak. When it is applied to lighting, it often produces spots with uneven illumination. And it is easy to have a large angle (such as ±45° or more) that deviates from the normal direction of the light source to enter the human eye and cause glare, which will make it difficult for LEDs to meet the requirements of lighting regulations. Therefore, how to redistribute the energy of the light field shape through primary optic...

AI Technical Summary

Problems solved by technology

[0003] However, LEDs usually output directly in the Lambertian light type, so the light intensity of the central viewing angle is strong and the light intensity of the peripheral viewing angle is weak. When it is applied to lighting, it often produces spots with uneven illumination. And it is easy to have a large angle (such as ±45° or more) that deviates from the normal direction of the light source to enter the human eye and cause glare, which will make it difficult for LEDs to meet the requirements of lighting regulations

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