projected Radiance (L): Flux per unit area per unit solid angle; W/(A∙sr) Solid Angle: The solid angle of a circular cone with half angle is: θ (eq 20): For small such that θ (eq 21): Camera Equation: Where: E is the irradiance of the image (W/m2 ) R is the radiance of the object (W/(m2 sr) ∙ And F/# is the F-number of the lens.
Radiance (L): Flux per unit projected area per unit solid angle; W/(A∙sr) Solid Angle: The solid angle of a circular cone with half angle θ is: (eq 20): For small θ such that (eq 21): Camera Equation: Where: E is the irradiance of the image (W/m2 ) R is the radiance of the object (W/(m2 ∙ sr) And F/# is the F-number of the lens.
EquationReference.docx