Method and apparatus for lighting
A lighting device, illuminance technology, applied in lighting devices, energy-saving lighting, electric lamp circuit layout, etc., can solve problems such as unable to point out, unable to provide solutions, etc.
Active Publication Date: 2016-01-20
SIGNIFY HLDG BV
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, US2007 / 0258243A1 cannot point out the relationship between work efficiency and user's eye comfort, so it cannot provide a solution for adjusting lighting for the purpose of work efficiency and eye comfort
Method used
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[0031] A detailed description of the present invention is given below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown in , the lighting device 100 includes a first light source 110 , a second light source 120 , a first measurement unit 130 , a second measurement unit 140 and an adjustment unit 150 .
[0033] The first light source 110 is configured to illuminate the first area 160 and the second light source 120 is configured to illuminate the second area 170 . The first light source 110 and the second light source 120 can be implemented in many ways, such as fluorescent lamps, light emitting diodes, halogen lamps, incandescent lamps or organic light emitting materials.
[0034] The first area and the second area can be determined in many ways. For example, the first area is a task area for performing a task (such as reading or painting), and the object of the task (such as a book or a picture) is placed in the task area; background area. ...
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The 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.
Description
technical field [0001] The present invention relates to luminaires, and more particularly to luminaires capable of adjusting the intensity of light generated. Background technique [0002] It is known that lighting requirements depend on the visual quality of illuminated objects, and that proper lighting can enhance the human experience and make the task at hand easier to perform. For example, bright light is better for reading, soft warm light is better for resting, etc. [0003] In the field of desktop lighting, some relevant literature recommends a task area to background contrast ratio of 10:3 for eye protection and eye comfort. However, this recommended "comfortable" contrast ratio does not take into account the need to increase the productivity of desk lamp users. [0004] US2007 / 0258243A1 provides a lighting system for delivering dynamic, fully customized and automated illumination to a subject. The provided illumination system can adjust the pattern and spectrum o...
Claims
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IPC IPC(8): H05B37/02H05B39/04
CPCY02B20/00
Inventor 叶冠华娄迪L·T·文肯夫勒格尔
Owner SIGNIFY HLDG BV