Method and device for preventing alterations in circadian...

Details Method and device for preventing alterations in circadian... Method and device for preventing alterations in circadian...

A - Human Necessities

61

N

A61N 5/06 (2006.01)

Patent

CA 2695453

A method of maintaining circadian rhythm of a subject comprising selectively substantially blocking retinal expo-sure of the subject to light having a wavelength shorter than a specified wavelength during the night, and an apparatus for carrying out the claimed method comprising an optical filter that selectively at least substantially blocks light having a wavelength shorter than the specified wavelength.

L'invention porte sur un procédé destinée à maintenir le rythme circadien d'un sujet. Le procédé consiste à bloquer sélectivement et substantiellement l'exposition rétinienne du sujet à une lumière de longueur d'onde inférieure à une longueur d'onde spécifiée pendant la nuit. L'invention porte également sur un appareil permettant de réaliser le procédé revendiqué et comportant un filtre optique qui bloque de manière sélective au moins sensiblement la lumière de longueur d'onde inferieure à la longueur d'onde spécifiée.

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