Night vision imaging system (NVIS) compatible lighting with an adjustable melanopic photopic ratio
AssigneeGoodrich Lighting Systems GmbH
InventorsPhilippe G. Lapujade, David K. McCombs
Life of this patent
Estimating the term…
Abstract
A lighting system and assembly comprising a controller in operable communication with a light unit. The controller is configured to apply a lighting condition using the light unit for a target light color below an upper level of NVIS radiance while controlling a Melanopic-Photopic (M/P) ratio associated with the target light color, and also determine a color mixing for producing NVIS Green A light and NVIS white light for a plurality of levels of NVIS radiance which are less than a maximum NVIS radiance level for a set of M/P ratio values at an upper allowable limit and a set of M/P ratio values at a lower limit.
Claims20
An article of manufacture including a tangible, non-transitory computer-readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising:
- command, by the processor, of a lighting system to achieve a target light color without exceeding a maximum limit of Night Vision Imaging Systems (NVIS) radiance while controlling a Melanopic-Photopic (M/P) ratio associated with the target light color;
- and
- determine, by the processor, a color mixing for producing NVIS Green A light and NVIS white light for a plurality of levels of NVIS radiance which are less than a maximum limit of NVIS radiance for a set of M/P ratio values at an upper allowable limit and a set of M/P ratio values at a lower limit.
A lighting system, comprising:
- a plurality of light emitting diodes (LEDs);
- and
- a controller in operable communication with the plurality of LEDs, the controller configured to cause the plurality of LEDs to:
- output a target light color below a maximum level of NVIS radiance while controlling a Melanopic-Photopic (M/P) ratio associated with the target light color;
- and
- determine a color mixing for producing NVIS Green A light and NVIS white light for a plurality of levels of NVIS radiance which are less than a maximum level of NVIS radiance associated with either an upper limit of an M/P ratio and a lower limit of an M/P ratio.
A light assembly, comprising:
- a controller in operable communication with a light unit, the controller configured to:
- apply a lighting condition using the light unit comprising a target light color below an upper level of NVIS radiance while controlling a Melanopic-Photopic (M/P) ratio associated with the target light color;
- and
- determine a color mixing for producing NVIS Green A light and NVIS white light for a plurality of levels of NVIS radiance which are less than a maximum NVIS radiance level for a set of M/P ratio values at an upper allowable limit and a set of M/P ratio values at a lower limit.
Dependencies are inferred from the claim text.