Half -litter angle

The half -litter angle describes the area of ​​a cone of light in which the light intensity drops to half the maximum brightness. It is a central aspect in the characterization of directed light sources, such as spots or stems that specifically bundle light. The half -litter angle thus defines the expansion of the brightest and most focused light area, while the rest of the light cone has a decreasing intensity.

A small half -litter angle ensures a narrow, precise light cone that is ideal to highlight small areas or objects such as works of art or architectural details. A larger half -litter angle, on the other hand, creates a wider light cone, which is better suited for the even lighting of larger areas.

The half -litter angle is particularly relevant in planning lighting concepts, since it has an impact on the visual impression and the efficiency of the lighting. Modern luminaires often allow the semi -litter angle to be adjusted to enable both flexible and precise lighting solutions.