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Why Are Safety Reflective Tape Brighter At Certain Angles

Why Are Safety Reflective Tape Brighter At Certain Angles

  • Categories:News
  • Author:YSM
  • Origin:YSMLITE
  • Time of issue:2024-02-20
  • Views:0

[概述]YSM safety reflective tape manufacturer, the hi vis tape for clothing produced by itself does not emit light, but it can always reflect the light back in the original direction.

Why Are Safety Reflective Tape Brighter At Certain Angles

[概述]YSM safety reflective tape manufacturer, the hi vis tape for clothing produced by itself does not emit light, but it can always reflect the light back in the original direction.

  • Categories:News
  • Author:YSM
  • Origin:YSMLITE
  • Time of issue:2024-02-20
  • Views:0
Information

The reflective safety clothing of traffic police and sanitation workers, as well as many outdoor sportswear, shoes and hats, have reflective strips. This is mainly to make it easier to be spotted by car drivers and ensure safety when there is insufficient light on rainy days or at night.


Hi vis tape for clothing does not emit light itself, nor does it emit fluorescence after being illuminated by light of a specific wavelength, such as ultraviolet light, like fluorescent materials. Instead, it directly reflects the light from the light source. However, this kind of reflective material does not simply and directly reflect the incident light like a mirror (unless the incident light is perpendicular to the mirror surface, there must be a large or small deviation in the direction of the reflected light and the incident light), but no matter what direction the incident light comes from , it can always reflect light back in the original direction. This phenomenon is called "retroreflection" or "retroreflection".

 

hi vis tape for clothing manufacturer


So, how is this function implemented?


It turns out that the surface of the retroreflective material is covered with a layer of glass beads or microprisms on top of the silver reflective paint. There are tens of thousands of glass beads or microprisms per square centimeter of material surface. The characteristic of these tiny structures is that they can reflect the light that strikes the material back toward the light source.


Therefore, the closer the observer is to the light source, the stronger the reflection will be. As the angle between the observer and the light source becomes larger, the intensity of the reflected light decreases rapidly. In this way, people near the light source, such as drivers driving at night, can see the bright reflection of their own car lights and spot people wearing reflective clothing in front of the vehicle, while drivers driving in other directions cannot see the reflection.


Safety reflective tape manufacturer, studies have shown that compared with reflective strips located on the torso, reflective strips on the legs (such as knees, ankles, etc.) are more likely to be seen by drivers. On the one hand, whether you are walking, running or riding, the reflective strips on the legs are constantly moving, so they are more conspicuous; on the other hand, in order to avoid dazzling the eyes of oncoming drivers, the car headlights (low beam headlights) ) have obvious light and dark cutoff lines, which mainly illuminate the area below the cutoff line and close to the ground, so the legs will be illuminated brighter by the car lights and the reflection will be stronger.


Most of the retroreflective materials on general clothing use glass beads, which are relatively low-cost. Retroreflective materials using microprisms have a higher reflectivity, and the reflected light is more concentrated and can be seen at a longer distance. It is usually used on facilities such as highway signs. On a dark night, drivers can distinguish the bright reflective pattern on the sign from hundreds of meters away. Pedestrians standing outside the highway can basically not see the reflection of the sign.

 

safety reflective tape manufacturer

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