Use x, y direction of axisymmetric free curved surface of secondary optical light distribution design can effectively solve the led street light, the light efficiency, uniformity, light Angle, glare and security problems, to provide conforms to the national standard requirements of light distribution, truly realize environmental protection and green lighting. Y of axisymmetric free surface of secondary optical light distribution design, is the best way to achieve this goal. Free surface with strong light can make outdoor led road lighting distribution of far field Angle is bat wings distribution, make flare rectangularity, and light spot of middle and edge is evener, using the edge light principle, the lens can also achieve sectional light design, eliminate the glare. The secondary optical design can effectively solve the lighting of the led street lamp light efficiency, uniformity, light Angle, glare and security issues. Use the led lights to achieve 140 & deg; Large Angle eccentric light distribution, enlarge the exposure area, which can increase the light pole spacing in road design, to reduce the cost, so as to solve engineering load efficiency. Want to learn more industry information or ask price, can call advisory