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:
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:
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.
摘要:
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.
摘要:
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.
摘要:
This invention relates to an illumination system (100) comprising a plurality of luminaires (101a-d). The luminaires are each arranged to transmit in the light emitted an identification code ID. To ensure sufficient detection of the identification codes during selection with a selection device (120), the system further comprises a control unit (130) which is arranged for identification of any luminaire which has a nominal drive value equal to or below a minimum preset value, or equal to or above a maximum preset value. The control unit sets (or instructs a driver to set) the nominal drive value of such identified luminaire to a predetermined value to achieve a corresponding predetermined light output from the luminaire ensuring a sufficient signal for the transmission of the identification code ID.