Abstract: The invention discloses an outdoor luminaire. The outdoor luminaire comprises a light module comprising at least one LED unit; wherein said light module is configured such that the light emitted by the light module has a first luminous intensity value no less than 10 cd/klm at a first angle (?i), which is a vertical angle of 90 degrees above a direction pointing directly downward from the luminaire. In this way, the luminous intensity of the outdoor luminaire at a vertical angle of 90 degrees is guaranteed to be no less than 10 cd/klm Since the end user sees the light emitted at a vertical angle of 90 degrees no matter how far away he is from the outdoor luminaire, the end user always perceives a certain level of brightness. Such “certain level of brightness” is helpful in increasing the adaptation level of the end user, and can effectively reduce the end user's perception of glare.

Abstract: A method of displaying an image on a color display comprises receiving image data to be displayed, forming a first sub image and a second sub image from said image data, said first sub image comprising a first set of colors and said second sub image comprising a second set of colors, wherein said first set of colors and said second set of colors are disjoint sets, and wherein said first set of colors and said second set of colors comprise a metamer formed by at least a first color in said first set of colors and at least a second color in said second set of colors, and displaying said image using said first sub image and said second sub image, or a representation thereof, on a color display.

Abstract: In a method of adjusting display settings defining the appearance of a main picture (11) generated by a display device on a screen (10) and dependent on user preference, a choice of options for a value or combination of values for the settings is made available for selection by a user of the device. The selected option is adopted as the new display settings defining the appearance of the main picture (11), upon confirmation by the user. A sample picture (13, 15-18), specifically adapted for displaying the effects of different values of the settings and defined by the selected option, is displayed on the screen (10) before confirmation. The sample picture (13, 15-18) is specific to the device and is generated from video data stored in memory (9) in the display device.