Color-temperature-adjustable LED spot lamp

Abstract

The invention discloses a color-temperature-adjustable LED spot lamp. The color-temperature-adjustable LED spot lamp comprises a base. A lens and a light source device are arranged on the base. The light source device comprises a substrate and lamp beads. The lamp beads are welded on the substrate in the form of concentric lamp bead rings and include the high-color-temperature lamp bead rings and the low-color-temperature lamp bead rings, and the high-color-temperature lamp bead rings and the low-color-temperature lamp bead rings are sequentially and alternately arranged from inside to outside. The lens comprises a lens body, annular bosses are arranged in the positions, corresponding to the lamp bead rings, of the upper surface of the lens body, and annular light mixing grains are arranged in the positions, corresponding to the annular bosses, of the lower surface of the lens body. The color-temperature-adjustable LED spot lamp is a film and television LED spot lamp product and is formed by arraying the single LED lamp beads of several specifications on the substrate according to a certain rule; and compared with an LED spot lamp with an LED COB as a light source, power density and heat density are lowered, and the light source cost and heat dissipation cost of the product are reduced; and the corresponding lens is designed and corresponds to the hundreds of LED lamp beads, so that the color mixing effect is improved to the maximum extent, and the consistent color mixing effect on the aspects of the illuminance and color temperature of light spots is guaranteed.

Description

technical field [0001] The present invention designs the lighting field, and specifically designs an LED spotlight with adjustable color temperature. Background technique [0002] LED spotlights use LED lamp beads instead of traditional bulbs. The service life of LED lamp beads is longer than that of traditional bulbs. The functions are the same, and they all play the role of concentrating light. As a new type of light source, LED light source has low power consumption, high luminous efficiency, long service life, energy saving, environmental protection, and has incomparable advantages over traditional light sources. It is one of the key projects advocated by the country and a must for future lighting development. road. [0003] Spotlights used in film and television have high requirements for color rendering and color temperature indicators. Existing film and television LED spotlight lighting products generally use COB LED light sources, which have high power density, high...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide an LED spotlight with adjustable color temperature. By adopting a new LED light source and arrangement scheme and a redesigned optical lens, it is solved that general lighting fixtures have no effective means of concentrating light, and the optical loss is large. The effective luminous flux density is low, and the color temperature cannot be adjusted. At the same time, it solves the problems of high power density, high heat density, and high cost when the existing general film and television LED spotlight lighting products use COB LED light sources.

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