summary of the invention
The utility model is intended to customer service prior art defect, and a kind of Led long-distance projection lamp is provided.
A kind of LED long-distance projection lamp, comprises housing and translucent cover thereof and is fixed at least one LED light source in housing; It is characterized in that: also comprise the lens module between described LED light source and described translucent cover, described lens module is made up of at least one lens, and described lens module is for generation of directional light.
The Led long-distance projection lamp that the utility model provides, the scattered beam scioptics module of multiple LED light sources can be formed to directional light, and then reach the effect of remote directional illumination, expand the scope of application of LED light fixture, substitute traditional high-power light-projecting lamp tool, reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation, wherein 1, housing, and 2, translucent cover, 3, LED light source, 4, first lens, 5, the second lens, 6, the 3rd lens, 7, the 4th lens, 8, circuit board, 9, fin.
The specific embodiment
The utility model embodiment provides a kind of LED long-distance projection lamp, and as shown in Figure 1, described LED long-distance projection lamp comprises housing 1 and translucent cover 2 thereof and is fixed at least one LED light source 3 in housing 1; It is characterized in that: also comprise the lens module between described LED light source 3 and described translucent cover 2, described lens module is made up of at least one lens, and described lens module is for generation of directional light.
According to the filtration of said lens module, can improve light projection distance and effectively keep the object of light shape and quality, thereby can adopt lower-powered light fixture to reach the effect of high-power projection lamp fitting.
In described housing 1, there are three LED light sources 3.
Described LED light source 3 is RGB three-color light source, and described LED light source 3 produces respectively redness, green, blue three kinds of scattered lights.
By adopting RGB spot light, can realize RGB spot light and regulate voluntarily color and colour temperature.Under same brightness, economize on electricity 80% than conventional lamp.
Each LED light source 3 is distributed in described housing 1 equally spacedly.
Described lens module is made up of the first lens 4, the second lens 5, the 3rd lens 6 and the 4th lens 7 that are arranged in order and glazed area increases successively.
Described first lens 4 is one side convex lens.First lens 4 is amplified in the scope of the second lens 5 for the point-source light ray that multiple LED are formed.First lens 4 can converge to the light of multiple spot lights in the range of refractive of the second lens 5.
The one side concavees lens of described the second lens 5 described first lens 4 for thickness is greater than.The second lens 5 reflect for the light that first lens 4 is converged, and form flat fire light, so that parallel rays enters the scope of the 3rd lens 6.
Described the 3rd lens 6 are two-sided concave-convex lens.The 3rd lens 6 converge flat fire light for the concavees lens that enter light side, and light is conveyed to the 4th lens 7 by bright dipping side.
Described the 4th lens 7 are one side convex lens.The 3rd lens 6 enter light side for by light graduation, bright dipping side is for again amplifying output by light.
The utility model, by the lens module of four lens compositions, makes three to provide respectively the light of the LED light source 3 of red, green, blue three looks to be converged, and produces directional light.Be mixed to get white LED light by the light of red, green, blue equal proportion.Guaranteeing that light offers on the basis of color and luster, improve the illumination length of LED, the experiment proved that the lens module by using above-mentioned four lens composition, can make LED illumination be mapped on the target object outside 70 meters.