Street lamp based on combined reflecting surface

Abstract

The invention discloses a street lamp based on a combined reflecting surface. The street lamp comprises a lamp holder, a lamp pole and a control box; the lamp holder comprises a lamp base as well as acombined curved surface reflector, an LED lamp panel and a lens which are sequentially mounted on the lamp base from inside to outside; the combined curved surface reflector comprises a plurality ofplanar reflecting mirrors in different directions; light of the LED lamp panel is completely radiated by all the planar reflecting mirrors to a target plane, and all light spots radiated to the targetplane are completely superposed with the position of the target plane; a plurality of LED lamps arranged in a square array are arranged on the LED lamp panel; and the lens are in the rectangular shape which is asymmetric in transverse and longitudinal directions. The street lamp has the very high flexibility and is applicable to various road conditions. Partial lighting dead corners can be avoided, so that dead zones are reduced; the light can be prevented from being projected to some areas which are not required to be lit, lighting of the unnecessary areas is reduced as much as possible, theutilization rate of energy is increased, and environmental protection and energy saving are realized.

Description

technical field [0001] The invention relates to the field of lamp structures, in particular to a street lamp based on a combined reflective surface. Background technique [0002] Roads are divided into urban roads, highways, factory and mine roads, forest roads, and rural roads according to their usage characteristics. About 30% of my country's electricity is used for street lighting, and the electricity consumption is about 43.9 billion kWh, calculated at an average electricity price of 0.7 yuan / kWh , with an annual expenditure of 30.7 billion yuan, while the lighting efficiency of ordinary street lamps is only about 76%. Traditional street lamps have the disadvantages of many blind areas of illumination, easy to produce overlapping areas of illumination, areas of non-essential illumination, and glare areas. If it can be converted into a high-efficiency The spotlight mode provides a street light with low energy consumption, low cost, high-efficiency spotlight, high search abi...

AI Technical Summary

Problems solved by technology

[0002] Roads are divided into urban roads, highways, factory and mine roads, forest roads, and rural roads according to their usage characteristics. About 30% of my country's electricity is used for street lighting, and the electricity consumption is about 43.9 billion kWh, calculated at an average electricity price of 0.7 yuan / kWh , with an annual expenditure of 30.7 billion yuan, while the lighting efficiency of ordinary street lamps is only about 76%. Traditional street lamps have the disadvantages of many blind areas of illumination, easy to produce overlapping areas of illumination, areas of non-essential illumination, and glare areas. If it can be converted into a high-efficiency Concentrating mode provides a low energy consumption, low cost, efficient concentrating, high search ability, strong flexibility, and environmental protection street lamp, which is of great significance to the topic of green energy saving

[0003] Traditional street lamps often use high-pressure sodium lamps. The overall low light efficiency of high-pressure sodium lamps has caused a huge waste of energy.

Today, when municipal expenditures are extremely tight, most cities and regions in China have adopted the money-saving method of turning off street lamps at intervals, which was abandoned in Japan and other countries in the 1970s. The uneven distribution of road surface illumination has buried hidden dangers for public security and traffic safety, and it is unavoidable that the increase in power grid voltage in the middle of the night will reduce the life of street lamps, so it cannot be called energy saving in the true sense.

Images