luminanssikäyrää

Luminanssikäyrää refers to a type of performance chart used in the measurement and analysis of luminance. It represents the variation of luminance across a given surface or image, often in the form of a two-dimensional graphical display.

The luminance profile is typically represented on a one-meter scale, with luminance levels measured on the ordinate and the distance or position on the surface measured on the abscissa. This chart provides a visual representation of how luminance varies across the surface or image, allowing for the identification of regions of high and low luminance.

In the context of display technology, luminance profiles are often used to analyze the performance of displays, such as CRTs, LCDs, and projectors. These tools can help manufacturers and researchers to identify areas for improvement in terms of contrast ratio, color accuracy, and viewing angle.

Luminance profiles can also be applied to other fields, including photometry and radiometry, where they are used to measure and analyze the optical radiation patterns of various sources, such as lamps, LEDs, and lasers. In this context, the luminance profile can provide insights into the light distribution characteristics of the source, enabling the determination of the total flux and the spatial distribution of radiant energy.

In summary, the luminanssikäyrää is a useful tool for visualizing and analyzing luminance variations, with applications in display technology, photometry, and radiometry. It provides a concise and informative way to represent and understand the optical characteristics of various light sources and images.