Optical system and lamp employing same

Abstract

The invention provides an optical system and a lamp employing the same. The optical system comprises a substrate, light sources, light guide bodies and lenses, wherein the light sources are mounted onthe substrate and comprise a plurality of sets of light-emitting arrays; each set of light-emitting array corresponds to one of the light guide bodies; each light guide body comprises an incident face, a light guide face and an output face; light emitted by the light-emitting arrays enters through the incident faces of the light guide bodies, and is subjected to dodging by the light guide faces,and then output from the output faces; and light getting out of the light guide bodies passes through the lens to form a light beam to be emitted out. The optical system further comprises a honeycombcover with a plurality of through holes, wherein the through holes sleeve lens heads of the lens; the cross sections of the through holes are matched with the maximum cross sections of the lens headsof the lens; and the overall arrangement shape of the through holes on the honeycomb cover is matched with that of of the light sources on the substrate. By adoption of the technical scheme, optical crosstalk is effectively prevented while the uniformity of light spots is guaranteed.

Description

technical field [0001] The invention relates to an optical device, in particular to an optical system and a lighting fixture for mixing and uniforming light and having the function of preventing cross-lighting. Background technique [0002] Compared with fluorescent lamps, LED light sources have the advantages of small size, low power consumption, long life, and high luminous efficiency. They are a new generation of energy-saving and environmentally friendly light sources. At present, there are many fluorescent tubes made of LED light sources on the market to replace fluorescent tubes. Fluorescent tubes using LEDs as light sources have the advantages of fast response, high brightness, no flicker, no noise, long service life, and good versatility. They have been widely used in homes, offices, shopping malls, public places, and vehicles. widely used. [0003] In practical applications, light from multiple light sources is usually mixed, and the emission color of each light s...

AI Technical Summary

Problems solved by technology

Although this method can achieve a certain uniform light effect, whether the light source is fully mixed depends more on the light guide surface of the light guide or the light source itself. Only by changing the cross-sectional shape of the light guide or just making each A light guide rotated at a certain angle cannot achieve sufficient mixing of the beam, and the beams of multiple light guides pass through the corresponding lens to produce cross-light, which affects the projection effect

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