Abstract: The invention is directed to a light source device comprising a light emitting element for emitting a blue light having a wavelength ranging from 435 to 500 nm, the light source device being configured to provide the blue light to at least one cell at a transmitted fluence ranging from 0.01 to 18. J/cm2 to promote or induce growth and proliferation of the cell and wherein the light emitting element has a power density ranging from 0.05 to 30 mW/cm2. The invention is also directed to a light source assembly comprising a product adapted to be in contact with the skin or a wound and a light source device connected to the product for providing blue light to at least one skin cell, preferably of the wound.

Abstract: A light source device including a light emitting element for emitting a light having the following characteristics: a wavelength ranging from 435 to 520 nm, and a power density greater than 20 mW/cm2, the light source device provides an effective fluence to any contaminating and/or pathogenic agent greater than 11 J/cm2. Also, a light source assembly including a product adapted to be in contact with a support or a medium, preferably the skin or a wound and a light source device connected to the product for providing light to at least one contaminating and/or pathogenic agent present on a support or in a medium.

Abstract: The invention is directed to a light source device (10) comprising a light emitting element (12) for emitting a blue light having a wavelength ranging from 435 to 500 nm, the light source device (10) being configured to provide the blue light to at least one cell (C) at a transmitted fluence ranging from 0.01 to 18. J/cm2 to promote or induce growth and proliferation of the cell (C) and wherein the light emitting element (12) has a power density ranging from 0.05 to 30 mW/cm2. The invention is also directed to a light source assembly comprising a product adapted to be in contact with the skin or a wound and a light source device (10) connected to the product for providing blue light to at least one skin cell (C), preferably of the wound.

Abstract: There is disclosed a cryptographic key management concept for a user domain, in which a local rights manager (LRM) is provided a cryptographic generation key for validly generating or converting only a limited amount of rights objects. In case a compromise of the LRM is detected, the cryptographic generation key is not renewed after the limited amount of ROs have been generated by the LRM. Otherwise, i.e. in case no compromise of the LRM has been detected, i.e. in case the LRM may be considered trustable, the LRM is provided a new (different) cryptographic generation key for generating a further limited amount of rights objects.