A welcome light optical element that produces a halo combination pattern

Abstract

The invention provides a meeting lamp optical element for generating halo combined patterns and a design method thereof. The meeting lamp optical element is an optical array spaced from an irradiating surface by a preset interval range; the optical array consists of multiple optical modules; the optical modules include light sources and circular halo generation lenses; sub light sources are point light sources; lighted surfaces of the halo generation lenses of all the optical modules are positioned on the same one plane; emitting light rays of the sub light sources are refracted by the halo generation lenses to generate circular light spots on the irradiating furnace; and when relative positions of the sub light sources and optical axes of the halo generation lenses are changed, the positions of the circular light spots generated by the optical modules on the irradiating furnace are changed, so that circular light spot patterns generated by all the optical modules are combined with each other. The meeting lamp optical element can use a similar Fresnel refracting optical element for generating halo patterns on the irradiating surface, and can combine the generated halo patterns through adjusting the positions of the sub light sources to form four-ring patterns like the Audi trademark on the irradiating surface.

Description

technical field [0001] The invention relates to the technical field of lighting beautification, in particular to an optical component of a welcome light that produces a combination pattern of halos. Background technique [0002] The car welcome light is an optical illuminator (or lighting fixture) used to illuminate the ground around the door when the door is opened at night. The car's brand logo (LOGO) can be displayed when the car welcome light shines on the ground. The car welcome light can have the function of lighting and promoting the company's brand at the same time. At present, the car welcome lamp market has gradually been promoted and used. In the future, it is expected to become a standard feature of various sedans and sports utility vehicles. [0003] So far, almost all optical systems of welcome lights are composed of point light sources, collimating objective lenses, imaging lenses or non-imaging optical components. That is to say, the design of the illumin...

AI Technical Summary

Problems solved by technology

That is to say, the design of the illumination source all adopts collimated beams, and the collimated beams irradiate the slides to be imaged through the projection lens, or the collimated beams irradiate the non-imaging refraction or diffractive optical elements to produce the desired optical illumination patterns; but such designs will Reducing the beam intensity or increasing the complexity of the lamp is unfavorable for equipment such as automotive lamps that require strict lighting capabilities and shock resistance; if a welcome lamp that does not require collimated beams (parallel light) can be designed, it will Conducive to the design and manufacture of such welcome lights

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