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HUE & CHROMA COLOUR SETTING METHOD

IP.com Disclosure Number: IPCOM000029468D
Publication Date: 2004-Jun-30
Document File: 1 page(s) / 4M

Publishing Venue

The IP.com Prior Art Database

Abstract

ID698667

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ID 698667 – PUBLICATIE                                                                                                                                   29-06-04

HUE & CHROMA COLOUR SETTING METHOD

This idea describes a user friendly method for adjusting the light settings.

Most people are not familiar with the x and y coordinates as defined for the CIE 1931 colour triangle. Therefore, it is not appealling to adust the lighting in a room by adjusting it in terms of the x and y colour coordinates.

This idea renders an alternative method which comprises three steps for adjusting the light settings.

First, the user sets the wanted white colour; he may choose all types of white along the black radiation curve from warm-white until cold-white. After this choice has been made, he will choose the hue. This is the colour that is added to the chosen white light. In the CIE 1931 colour triangle this is a vector with a determined direction or angle, starting from the desired white point. Finally, in the third step the user chooses the chroma, that is the saturation or amount of the colour he has already chosen. The chroma is determined by the length of the vector.

Summarizing, the user can adjust the light settings with the aid of three knobs: first, he chooses the white colour, then he selects the hue or colour (the angle of the vector starting at the chosen white point), and finally a adjusts the chroma or saturation (that is the radius length of said vector).