Goody
Member
After a recent incident (i wrote about it on here) More things are coming to light.
One thing that I had never thought about and could be a potential hazard are those 'green with white strip' high visibilty jackets.
Here in the UK, they are compulsory things to wear where moving vehicles are, or you need to be seen.
These jackets have a high reflective white strip on them.
This is all in the interests of health and safety at work.
The white strip reflects light.
It is possible to walk in front of a photo cell that uses a reflector for the light beam and have the light beam reflected back to the photo cell via the white strip on the jacket.
This then tells the photo cell that there is nothing blocking it.
It might be common knowledge to some of you but it was a new revelation to me.
There are quite a few possibilities that I have thought of that a man wearing one of these jackets could walk or be and reflect the beam back telling the machine all is clear - when in fact, it is not.
What do we think?
One thing that I had never thought about and could be a potential hazard are those 'green with white strip' high visibilty jackets.
Here in the UK, they are compulsory things to wear where moving vehicles are, or you need to be seen.
These jackets have a high reflective white strip on them.
This is all in the interests of health and safety at work.
The white strip reflects light.
It is possible to walk in front of a photo cell that uses a reflector for the light beam and have the light beam reflected back to the photo cell via the white strip on the jacket.
This then tells the photo cell that there is nothing blocking it.
It might be common knowledge to some of you but it was a new revelation to me.
There are quite a few possibilities that I have thought of that a man wearing one of these jackets could walk or be and reflect the beam back telling the machine all is clear - when in fact, it is not.
What do we think?