Specifications

Material:Hard coating
Work Wavelength:300-1200nm
Customer design Filter

 

1. Principle

The radiation intensity in free space of the earth's average distance that sunlight reached is defined as solar constant, value is 1353 W/m2. And the influence that earth's surface accept sunlight from earth's atmosphere is by definition atmosphere quality (air mass).  When air quality is zero status (AM0), is point that sunlight directly perpendicular to the surface of the earth, and the incident power is 925W/m2, that is equivalent to the summer under the sea level, which supported the light of the sun. Distinction fo the both is that of attenuation from the atmosphere to the sun light, mainly including the ozone layer to ultraviolet absorption, water vapor to the infrared adsorption as well as dust and aerosols scattering from atmosphere, etc. When the angle between the sunlight incident and ground isθ, air quality is AM=sec θ ,when θ =48.2degree, air quality is AM1.5. It is point to the situation, which in the typical sunny day, the sunlight irradiate the half of the surface. The total radiation is 1k W/m2, often used for solar cells and standard of components efficiency test.

2. Optical Curve