ARRANGEMENT FOR CHANGING THE VISUAL APPEARANCE OF A TARGET OBJECT

摘要

The invention relates to an arrangement (100) comprising a lighting system (110) and a target object (120), wherein the lighting system (110) is arranged to illuminate a target surface of the target object (120) with a primary light output (111) and with a secondary light output (112). Each of these light outputs has an illumination spectrum representing a color. The two illumination spectra are different, but the two colors are substantially the same. The target surface has a first target surface area and a second target surface area. When the first and second target surface areas are illuminated with the primary light output (111), they have a contrast that is lower than when they are illuminated with the secondary light output (112). The arrangement of the invention can be used for atmosphere creation or for attracting attention to the target object (120).

主权项

1. An arrangement comprising a lighting system and a target object, the lighting system being arranged to illuminate a target surface of the target object with a primary light output having a primary illumination spectrum representing a first color, and with a secondary light output having a secondary illumination spectrum representing a second color, wherein the primary and secondary illumination spectra have different spectral power distributions, and wherein the first and second colors have a color difference that is equal to or lower than a predetermined threshold(ΔET) that is the lower of 20 and the outcome of the following equation:
ΔET=ΔE0+αΔt wherein ΔE0 is equal to 8, α is equal to 8 per second, and Δt represents the shortest time it takes the illumination of an arbitrary area on the target surface to change between the primary light output and the secondary light output, and
the target surface comprising a first target surface area and a second target surface area, wherein the first and second target surface areas have a first contrast upon illumination with the primary illumination spectrum, and a second contrast upon illumination with the secondary illumination spectrum, the second contrast being larger than the first contrast.