1. the intensity of light emitted from or reflected by a surface
Usage: technical; physics
2. a measure of the amount of light that passes through or is emitted from a particular area
Usage: photography; display technology

Examples

• The luminance of the computer screen was too bright for comfortable viewing.
• Photographers adjust camera settings based on the luminance of their subject.
• The new LED display offers superior luminance compared to older models.
• Scientists measured the luminance of various light sources in the laboratory.
• High luminance values can cause eye strain during extended use.
• The luminance meter showed readings well above the recommended levels.