Basic Concepts and Definitions

Definition of Spectral Irradiance and Wavelength Distribution Characteristics

Integral Relationship Between Spectral Radiation Force and Total Radiation Force

Radiation energy's spatial distribution and directional characteristics analysis

Radiation intensity: Definition and Spatial Directional Characterization

Radiation intensity units and the basis of calculation

The Definition of Radiation and Total Hemispherical Radiation Energy

The Physical Significance and Units of Radiation Flux

The Relationship Between Radiation and Radiation Intensity