Corresponding color temperature Corr el atedColorTemperature): The light emitted by the light source is closest to the color of the light radiated by the black body at a certain temperature. The temperature of the black body is called the correlated color temperature of the light emitted by the light source, and the unit is K.
Radiant Intensity: The radiant flux dφ emitted by a source within a solid angle element containing the direction in a given direction divided by the solid angle element dΩ in W/Sr.
Radiance: The radiant intensity dI of a panel dA containing a point in a given direction on the source surface divided by the orthographic area of ​​the bin on a plane perpendicular to a given direction, in /Sr ?m2.
Irradiance: The irradiance E of a point on the radiation receiving surface is equal to the radiant flux dφ projected onto a bin including the point divided by the area dA of the bin, in units of W/m2.
Luminous Intensity: The light flux dφ emitted by a solid source containing the direction in a given direction divided by the solid angle element dΩ in cd. Commonly known as candela (cd): unit of luminous intensity. Candela is the luminous intensity of a light source emitting radiation at a frequency of 540 x 1012 Hz in a given direction; the radiant intensity of the source in this direction is 1/683 W/Sr.
Luminous Flux: The amount of light radiated by a human visual system, in lm.
Illumination: The illuminance at a point on the surface is the luminous flux dφ incident on the bin containing the point divided by the bin area dA. The metric unit of illuminance is lx (lm/m2) and the imperial unit is fc (lm/ft2).
1lx=0.0929fc
1fc=10.76lx
Luminous Exultance: The luminous flux emitted per unit area in lm/m2.
Luminance: The intensity of illumination per unit area in a given direction. The metric unit of luminance is cd/m2 (also called Nit), and the imperial unit is fL (1/π×cd/ft2).
1cd/m2=0.2919fL
1fL=3.426cd/m2
CIES standard photometric Obse-rver: The relative spectral response curve conforms to the ideal observer of the visual V (λ) function or the dark visual V" (λ) function.
Lambertian Surface: The luminous intensity in a certain direction is equal to the luminous intensity in the vertical direction of the surface multiplied by the cosine of the direction angle. Such a luminous surface is called a Lambertian emitting surface or a Lambertian body, sometimes called A uniform diffusing surface or a uniform diffuser is also often referred to as a cosine diffuser. The relationship between the emittance of the Lambertian emission surface and the brightness is M = πL.
Description:
Luminous intensity is an important indicator of the brightness of the display, the unit is Candela (cd).
Luminous flux is one of the main indicators of the projection system, the unit is (we say lumens) lm.
Radiant Intensity: The radiant flux dφ emitted by a source within a solid angle element containing the direction in a given direction divided by the solid angle element dΩ in W/Sr.
Radiance: The radiant intensity dI of a panel dA containing a point in a given direction on the source surface divided by the orthographic area of ​​the bin on a plane perpendicular to a given direction, in /Sr ?m2.
Irradiance: The irradiance E of a point on the radiation receiving surface is equal to the radiant flux dφ projected onto a bin including the point divided by the area dA of the bin, in units of W/m2.
Luminous Intensity: The light flux dφ emitted by a solid source containing the direction in a given direction divided by the solid angle element dΩ in cd. Commonly known as candela (cd): unit of luminous intensity. Candela is the luminous intensity of a light source emitting radiation at a frequency of 540 x 1012 Hz in a given direction; the radiant intensity of the source in this direction is 1/683 W/Sr.
Luminous Flux: The amount of light radiated by a human visual system, in lm.
Illumination: The illuminance at a point on the surface is the luminous flux dφ incident on the bin containing the point divided by the bin area dA. The metric unit of illuminance is lx (lm/m2) and the imperial unit is fc (lm/ft2).
1lx=0.0929fc
1fc=10.76lx
Luminous Exultance: The luminous flux emitted per unit area in lm/m2.
Luminance: The intensity of illumination per unit area in a given direction. The metric unit of luminance is cd/m2 (also called Nit), and the imperial unit is fL (1/π×cd/ft2).
1cd/m2=0.2919fL
1fL=3.426cd/m2
CIES standard photometric Obse-rver: The relative spectral response curve conforms to the ideal observer of the visual V (λ) function or the dark visual V" (λ) function.
Lambertian Surface: The luminous intensity in a certain direction is equal to the luminous intensity in the vertical direction of the surface multiplied by the cosine of the direction angle. Such a luminous surface is called a Lambertian emitting surface or a Lambertian body, sometimes called A uniform diffusing surface or a uniform diffuser is also often referred to as a cosine diffuser. The relationship between the emittance of the Lambertian emission surface and the brightness is M = πL.
Description:
Luminous intensity is an important indicator of the brightness of the display, the unit is Candela (cd).
Luminous flux is one of the main indicators of the projection system, the unit is (we say lumens) lm.
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