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Analysis and explanation of the luminous angle of LED high bay lights

time:2021-06-24 Views:


In recent years, LED high bay lights have been widely used in workshops, workshops, warehouses, highway toll stations, large supermarkets, exhibition halls, stadiums, etc. LED high bay lights have replaced the traditional metal halide lamps and energy-saving lamps, and the annual sales volume is very huge. However, today's market demand is no longer as simple as the quality of products and raw materials, but the expected effect of customers in terms of lighting angle and light perception.

The light-emitting angle of the ED high bay light: refers to the light-emitting angle of the diode, that is, the light scattering angle is controlled by adding a scattering agent when the diode is manufactured. It will also be affected by the lens and lampshade.

Lens: secondary light distribution, the lens angle refers to the size of the light-emitting range of the LED product after light-emitting, called the beam angle. It reflects in the light source with the same spot size and light intensity on the illuminated wall. The smaller the beam angle, the greater the light intensity in the center, and the smaller the spot, the better the light effect. The common beam angles currently on the market are: 15°, 25°, 45°, 60°, 90°, 120°. According to the angle, it can be divided into: narrow-angle beam: 20°﹥, medium beam 20°-40°, wide-angle beam 40°. LED high bay lights usually have wide beams, and most of them will choose 90° or 120°. Those with light intensity requirements will choose 60° or 45°. The specific design will consider the installation height, installation distance,

Analysis and explanation of the luminous angle of LED high bay lights(图1)

Lampshade: The lampshade of the LED high bay light we see from the appearance actually has a certain effect of focusing and adjusting the beam angle, but because the lampshade of some manufacturers is darker, the reflection and focusing effect are getting smaller and smaller.

Can the old sodium lamps used in the factory be replaced with LED high bay lights?

In the era of the rise of LED lighting, the practical application of LED high bay lights has entered various factories and workshops. There are still some problems in the application of factory lighting. The main problems of replacing sodium lamps with LED high bay lamps in factories are as follows:

Glare, sense of space.

At present, the light of LED high bay lights is basically vertical downward. Most LED lights are equipped with aluminum covers. Due to the high brightness of the LED chip surface, the top of the factory building is basically very dark, which will result in a sharp contrast between the brightness under the light and the light above the light, giving people a heavier sense of pressure and lack of space.

As many LED high bay light chips in factories now use a single tiled method, each of them will have a light spot in the factory lighting. After a large chip is integrated, a lot of light spots will be generated, which will be illuminated by light. Bright objects appear more obvious ghost images.

There is a reflection problem, because the LED is mainly direct light, and the work surface of the factory is mostly made of metal materials, a lot of light will directly enter the human eye, which greatly reduces the comfort of the workers at work, so some people think that the factory It feels uncomfortable to use LED lights to illuminate it.

In fact, the color rendering index of LED is more obvious than that of sodium lamp, and it is also far ahead in terms of energy saving. Now the main problem is concentrated on the comfort of the working environment. This is also an aspect that LED high bay lamp manufacturers need to improve.

As mentioned above, the LED high bay lights used in factories still lack basic research in the application process. The lighting requirements of traditional high bay lamps are realized through reflectors, while LED products are illuminated through intermediate lenses and reflectors. However, because the research on the lens is not very mature, it is more to imitate the traditional form of industrial and mining lighting, which makes the LED light look like it emits light.


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