1、Light pollution is harmful to healthy

It's easy to have 5 illness if one lives under the light radiation for long time:

(1)The eye disease: such as cataracts, nearsightedness, iris and cornea injury, conjunctivitis, flashing eyes, glaucoma, presbyopia etc. Especially the incidence of cataracts is up to 48%.

(2)It can damage to the skin, accelerate skin aging and even necrosis, cause skin cancer.

(3)It can interfere with the brain central nervous and damage people's physical and mental health. Such as dizziness, headache, nausea, loss of appetite, neurasthenia, listless, depression, loss of libido, menstrual disorders.

(4)It can make one transient loss of vision.

(5)The snow blindness.

2、Light pollution can influence the traffic safety

More than 30% of the traffic accidents are caused by strong light interference in the whole country each year.

(1)The driver can’t see the front clearly and cause an accident because of the sudden strong light shine.

(2)The headlight from the opposite car at night causes the traffic accident.

(3)The light conditions change in and out of the tunnel causes the traffic accident.

3、Potential safety hazard

It can cause a large number of fire due to strong light exposure every year.

4、Light pollution can destroy the living and working environment.

There are three reasons that light pollution is more harmful to drivers:

First, the light environment is very serious owing to the higher probability and long time to bear the glare for the cars outside. In general, the light environment causes damage to the driver during driving as 7 followings:

(1)drive against the sun in the morning and afternoon

(2)drive against the front light suddenly to backlight

(3)drive against the reflected light from the glass curtain wall and the car

(4)drive under the sun glare for long time

(5)drive in and out of the tunnel

(6)drive under the glare from the city lighting and the headlight from the opposite cars

(7)drive against snow’s White light

Second, the drivers can’t attach importance to the light pollution currently and need time to realize this issue.

Third, the measures to shield form glare are inappropriate and incomplete.

So, how to shield form glare become a historical problem in the world car industry for over 100 years.