摘要:
A relative flux sensor (122) and a method of characterizing characteristics of light emitters are provided. The relative flux sensor (122) comprises a color point sensor (108) and a sensor color (118). The color point sensor (108) measures a color point in a color space of light emitted by a light source (101) comprising a first light emitter (102) for emitting light of a first color and a second light emitter (114) for emitting light of a second color being different from the first color. The light source (101) is arranged for emitting light of a controllable color, being a mix of light of the first color and light of the second color. The sensor controller (118) is coupled to the color point sensor (108) for receiving a measuring signal and is arranged for i) providing a first signal to the light source (101), the first signal comprising a dimming factor D1 and a dimming factor D2, the dimming factor D1 and the dimming factor D2 indicating a fraction of a maximum flux of the first light emitter (102) and the second light emitter (114), respectively, and receiving the measuring signal representing a first color point when the light source (101) emits light according to the first signal, wherein at least one of the dimming factors D1 and D2 is different from 0, ii) providing a second signal to the light source (101), the second signal comprising a dimming factor D4 and a dimming factor D5, the dimming factor D4 and the dimming factor D indicating a fraction of the maximum flux of the first light emitter (102) and the second light emitter (114), respectively, and receiving the measuring signal representing a second color point when the light source (101) emits light according to the second signal, wherein both dimming factors D4 and D5 are different from 0, iii) calculating within a model of the color 20 space a ratio between a maximum flux of the first light emitter (102) and a maximum flux of the second light emitter (114) on the basis of the first color point, the second color point, the dimming factors D1, D2, D4 and D5.
摘要:
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 multiple 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.
摘要:
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 multiple 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.
摘要:
This invention provides an illumination apparatus and an illumination method. The illumination apparatus comprises: a first light source for illuminating a first area; a second light source for illuminating a second area; a first measuring unit for measuring the illuminance of the first area; a second measuring unit for measuring the illuminance of the second area; and an adjusting unit for adjusting at least one of the first light source and the second light source to make the contrast ratio of the measured illuminance of the first area to the measured illuminance of the second area change gradually from a first predefined value to a second predefined value lower than the first predefined value during a first predefined duration. In this way, the relative higher contrast ratio (i.e. the first predefined value) enables the users to improve their work efficiency and the relative lower contrast ratio (i.e. the second predefined value) allows the users' eyes to be comfortable. In addition, because the contrast ratio changes gradually, the users' attention will not be distracted and the users' eyes will remain comfortable when the contrast ratio changes.
摘要:
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.
摘要:
The invention relates to a control device (1) for controlling the hue (H) of light (L) emitted by a light source (2). The control device comprises a hue selection surface (20) capable of displaying one or more hues available for said light of said light source and interaction detection means (21) for detecting interaction between said hue selection surface and a user of said control device in selecting said hue for said light of said light source. The control device (1) allows the user to select the desired hue for the light source simply by interacting with the hue selection surface that displays the available hues. Consequently, the control device can be operated easily and intuitively.
摘要:
This invention provides an illumination apparatus and an illumination method. The illumination apparatus comprises: a first light source for illuminating a first area; a second light source for illuminating a second area; a first measuring unit for measuring the illuminance of the first area; a second measuring unit for measuring the illuminance of the second area; and an adjusting unit for adjusting at least one of the first light source and the second light source to make the contrast ratio of the measured illuminance of the first area to the measured illuminance of the second area change gradually from a first predefined value to a second predefined value lower than the first predefined value during a first predefined duration. In this way, the relative higher contrast ratio (i.e. the first predefined value) enables the users to improve their work efficiency and the relative lower contrast ratio (i.e. the second predefined value) allows the users' eyes to be comfortable. In addition, because the contrast ratio changes gradually, the users' attention will not be distracted and the users' eyes will remain comfortable when the contrast ratio changes.
摘要:
The invention relates to selecting a light source from a plurality of light sources, particularly to the selecting of a light source by pointing to it with a light source selection device. An embodiment of the invention relates to a light source selection device (10) comprising—at least one photosensor (36, 38, 40) with a field of view (20, 22, 24), wherein light (26, 28, 30) from one or more light sources (32, 34) may be received by the photosensor within the field of view, and - a photosensor output signal processing unit (42) being adapted to select one or more light sources by processing the light received by each photosensor. The present invention may be for example used to select appliances or devices or objects provided with the ability to transmit coded light in the ultra violet, visible or infra red spectra, for example lights, climate, curtains, kitchenware, etc.
摘要:
The invention relates to button based color navigation in a lighting or visualization system, particularly for allowing fast and slow navigation through the colors in a lighting or visualization system only by usage of buttons. For the navigation, a device (10; 50) is provided which comprises several buttons (14,16, 18, 20, 22, 24,- 52, 54) arranged in predetermined order (12,-56), wherein each of the buttons is provided for a certain color of the system to be selected. Presses of one or more buttons (S10) are sensed, parameters of the sensed presses (S12) are evaluated, and a color in the system is changed depending on the evaluation of the parameters (S14, S16, S18, S20).
摘要:
The invention relates to color selection input, for example by means of a color selection wheel or pad, particularly for a lighting system. The invention provides color selection means (10) representing selectable colors in terms of hue gradation (12) along a direction thereof, wherein the hue gradation is adapted to user preferences in that the hue gradation is divided into non-equal segments (20, 22) with segments of user preferred hue (20) larger than segments of non user preferred hue (22). The invention has the main advantage that the input of a color selection may be better adapted to user preferences.