Protective glass for LED street lamp and manufacturing method of protective glass

Abstract

The invention discloses protective glass for an LED street lamp and a manufacturing method of the protective glass, and belongs to the field of LED lighting. The problems are solved that existing LEDstreet lamp protective glass can not pass the IK impact test, and the toughening effect is greatly reduced if the surface of the glass is printed with a pattern. According to the technical scheme, theglass includes a glass body, the glass body is plate glass with two sides clear, and after outline cutting, polishing, cleaning, drying, full toughening treatment, testing, pattern silk-printing, baking, cooling and testing, the protective glass for the LED street lamp is made. The manufacturing process is simple, the plate glass with two sides clear is adopted, the toughening effect is not affected even if the surface of the glass is printed with the pattern, the qualified rate of the made protective glass for the LED street lamp is 100% in the IK impact test, and the protective glass for the LED street lamp has impact resistance, knocking resistance, high temperature resistance, low stress and strong acid and alkali resistance.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a protective glass for an LED street lamp and a manufacturing method thereof. Background technique [0002] LED street light is an important part of urban lighting. The traditional LED street light optical devices are directly exposed on the outer surface of the lamp body. The module peanut lens and COB light source lens are mainly used. The first module peanut lens mainly uses PC and PMMA. Injection molding of two materials not only bears the light distribution but also bears the mechanical stress of waterproofing, and if it is exposed to the outside for a long time, aging will be accelerated, the light output efficiency will be reduced, the color will change, and the waterproof effect will gradually decline, and finally the waterproofing will fail, resulting in death. Lamp, the second COB light source lens is mainly made of glass and silica gel. Like the module peanut lens, it not o...

AI Technical Summary

Problems solved by technology

[0002] LED street light is an important part of urban lighting. The traditional LED street light optical devices are directly exposed on the outer surface of the lamp body. The module peanut lens and COB light source lens are mainly used. The first module peanut lens mainly uses PC and PMMA. Injection molding of two kinds of materials not only bears the light distribution but also bears the mechanical stress of waterproofing, and if it is exposed to the outside for a long time, aging will be accelerated, the light output efficiency will be reduced, the color will change, and the waterproof effect will gradually decline, and finally the waterproofing will fail, resulting in death. Lamp, the second COB light source lens is mainly made of glass and silica gel. Like the module peanut lens, it not only bears the light distribution but also bears the mechanical stress of waterproofing. There are also many problems. As we all know, because the COB light source emits light The limitation of the surface leads to a lot of heat and strong glare, so it is not perfect to use in LED street lights

[0003] In recent years, the two schemes of module peanut lens and COB light source lens have been gradually eliminated on the market, and the practice of adding glass protection to the light emitting surface of LED street lights has appeared. The protective glass has replaced the waterproof structure of traditional LED street light optical devices. The device is installed inside the protective glass to provide light distribution, and the number of optical devices can be freely combined, and the design of different light distribution curves can be freely allocated to meet higher road lighting requirements. The problem is that the LED street lights made by most manufacturers The protective glass cannot pass the IK impact test, resulting in the explosion of the protective glass during the production process, the explosion of the protective glass during transportation, and even the explosion of the protective glass during use. It is conceivable that when we drive on the road, the How dangerous it is for the protective glass of LED street lamps to explode and fall off. Although the protective glass is also tempered, the effect of tempering is greatly reduced by printing patterns on the glass surface.

Images