Abstract:
The invention provides a lighting device (1) comprising one or more light sources (10) arranged to generate light, an accommodating device (5) having an external boundary (2) which is at least partly translucent and is arranged to accommodate the one or more light sources and a controller (40). The lighting device can generate two types of light. One or more lighting parameters selected from the group consisting of the first luminous intensity of the first type of light, the second luminous intensity of the second type of light, the color point of the first type of light and the color point of the second type of light can be controlled. This allows task lighting and atmosphere lighting. The invention is also directed to a method of providing a wake-up stimulus by means of such a lighting device.
Abstract:
The invention relates to synchronizing settings in a home control system such as settings for lighting scenes in a lighting system with a plurality of light units. A basic idea of the invention is to synchronize settings such as lighting scene settings in a home control system with a network of devices such as light units and multipe control devices for controlling the network devices. An embodiment of the invention provides a device (Sync) for synchronizing settings in a home control system comprising a memory (12) for storing settings of one or more of devices (L1-L9) of the home control system, a communication unit (14) for receiving signals (16) from and transmitting signals (18) to control devices (RC3- RC 4) of the home control system, and a processor (10) for synchronizing stored settings in the home control system upon receipt of a signal (16) from a control device (RC3, RC4) of the home control system by transmitting a synchronization signal (18). Thus, all control devices may have access to all settings. Particularly, a user may control all settings with one control devices and does not have to remember which settings are stored in which control device.
Abstract:
The invention provides a lighting device (1) comprising one or more light sources (10) arranged to generate light (11), a containing device (5) having an external boundary (2) which is at least partly transmissive and which is arranged to contain the one or more light sources (10) and a controller (40). The lighting device (1) can generate two types of light. One or more lighting parameters selected from the group consisting of the first luminous intensity of the first type of light (111), the second luminous intensity of the second type of light (112), the color point of the first type of light (111) and the color point of the second type of light (112) can be controlled. This allows task lighting and atmosphere lighting.
Abstract:
The invention provides a luminescent lamp which comprises a tubular discharge vessel, a power source to maintain a discharge within the discharge vessel and a controller, arranged to control, during operation of the luminescent lamp, the power provided to the tubular discharge vessel by the power source. The lamp further comprises a luminescent material coating, having a coating surface with a coating surface area, coated on the tubular discharge vessel and an optionally optical filter, having a transmission for light emitted by the luminescent material, and having an optical filter area. One or more of(a) the luminescent material is arranged to show different luminescent colours over the coating surface area and (b) the optional optical filter is arranged to show different wavelength dependencies for the transmission over the optical filter area. By varying the power coupled into the discharge tube by means of the controller, the different luminescent materials are addressed (with concomitant different luminescences), respectively, and/or the different optical filters are addressed, respectively. This allows dimming of the luminescent lamp along the BBL.
Abstract:
The invention relates to color selection input, for example by means of color selection wheels or pads, particularly for a lighting system. An embodiment of the invention provides a color selection input device (10) comprising - hue selection means (12) representing selectable colors in terms of hue gradation along a direction thereof, - saturation selection means (14) representing a selectable saturation gradation along a direction thereof, wherein - the hue selection means (12) and the saturation selection means (14) are arranged such that they comprise an overlapping region (16) and the saturation selection means (14) are transparent and shaded from fully transparent to fully white for visualizing a hue and saturation selection in the overlapping region (16), and - means (18) for detecting the positions of the hue selection means (12) and the saturation selection means (14) and generating a color selection signal (19) depending on the detected positions. This may make navigating through the hue and saturation color space more convenient and intuitive for users.
Abstract:
A lighting system (900) has a light source (920) configured to provide a light, and a controller (930) configured to control hue and saturation of the light to change a color of the light from an initial color to a final color during at least two phases.
Abstract:
A lighting system (900) has a light source (920) configured to provide a light, and a controller (930) configured to control hue and saturation of the light to change a color of the light from an initial color to a final color during at least two phases.
Abstract:
The present invention provides a lighting system with a color indicator surface (24, 30). The surface receives light via a cover (18) of the lighting system, mainly through internal reflection. Hence, the light from the light sources, here at least two different colored LEDs (14), is guided away from the main light emitting surface (20), such that well-mixed light with a lower intensity may be used to determine the color of the light. The color indicator surface may be a surface (24) of the cover (18), or may be a surface (30) of a separate outer part (26). The lighting system may be used to illuminate objects in houses, shops and so on. The color indicator surface provides a convenient and easily accessible color reference.
Abstract:
The invention relates to a method for making a thin finished product to be formed by deformation that combines strength with resistance to a highly corrosive environment. The method comprises forming a sheet of stainless steel with a microstructure consisting predominantly of ferrite, austenite, martensite or a mixture thereof, with a thickness of less than 3 mm, to a three dimensional semi finished product, treating said semi finished product with a nitrogen-containing atmosphere at a temperature of between 1000 °C and 1200 °C during a time and under a nitrogen pressure, sufficient to saturate the product through the thickness with a nitrogen content between a lower limit of 0.3 wt% and an upper limit that is provided by the beginning of nitride separation, cooling down said product at such a rate and nitrogen pressure that nitride separation is avoided, and subsequently machining the nitrogen saturated semi- finished product to the finished product. The invention further relates to a rotary shaving assembly prepared by the method of the invention.
Abstract:
The invention provides a luminescent lamp which comprises a tubular discharge vessel, a power source to maintain a discharge within the discharge vessel and a controller, arranged to control, during operation of the luminescent lamp, the power provided to the tubular discharge vessel by the power source. The lamp further comprises a luminescent material coating, having a coating surface with a coating surface area, coated on the tubular discharge vessel and an optionally optical filter, having a transmission for light emitted by the luminescent material, and having an optical filter area. One or more of(a) the luminescent material is arranged to show different luminescent colours over the coating surface area and (b) the optional optical filter is arranged to show different wavelength dependencies for the transmission over the optical filter area. By varying the power coupled into the discharge tube by means of the controller, the different luminescent materials are addressed (with concomitant different luminescences), respectively, and/or the different optical filters are addressed, respectively. This allows dimming of the luminescent lamp along the BBL.