Illumination device comprising an internal power source and an interface for connecting the illumination device to an external power supply
A technology of lighting equipment and external power supply, which is applied in the direction of lighting and heating equipment, electric lighting device with built-in battery, and built-in power supply, etc.
Inactive Publication Date: 2012-05-16
KONINK PHILIPS ELECTRONICS NV
View PDF7 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, there still seems to be room to provide improved lighting
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] figure 1 A lighting system according to an embodiment of the present invention is schematically shown. The lighting system 100 includes a lighting device 102 and a coupling device 104, which here is a charger.
[0024] The lighting device is here a movable lamp, the dimensions of which are chosen such that the user can pick up the lighting device and place it at a desired location. Thus, the user can eg take the lighting device out of the charger and place it on a table next to his chair as a reading light. The luminaire shown has a diameter of about 80mm and a height of about 60mm. However, the size of the lighting device may vary, as recognized by those skilled in the art.
[0025] The lighting device 102 includes a plurality of light emitting devices 106, here light emitting diodes (LEDs) 106 arranged on a printed circuit board. The number of LEDs will vary based on the application, but is typically selected based on the amount of heat that can be dissipated from...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An illumination device comprising: at least one light emitting device (106); an internal power source (208); an electrical interface (112) for electrically connecting said illumination device to an external power supply (210); a thermal interface (114) for thermally connecting said illumination device to an external heat sink (121); and a circuitry for operating said illumination device in a first mode when disconnected from at least one of said external power supply (210) and said external heat sink (121), in which first mode said at least one light emitting device (106) is powered by said internal power source (208), and in a second mode when said illumination device is connected to said external power supply (210) and said external heat sink (121), in which second mode said at least one light emitting device (106) is powered by said external power supply (210), and wherein a first maximum luminance in said first mode is restricted relative a second maximum luminance in said second mode.
Description
technical field [0001] The invention relates to a lighting device comprising an internal power supply and an electrical interface for electrically connecting the lighting device to an external power supply. The invention also relates to an engagement device providing an external power source, and also to a system comprising such a lighting device and such an engagement device. Background technique [0002] A movable light may be convenient in situations where no luminaires are available or where there is insufficient illumination from available luminaires. [0003] If the portable light is used in the event of a mains power outage, the portable light must be powered by an internal power source, such as a battery. However, due to the limited power available from the battery, it is generally preferred to power the movable light via the mains power supply when mains power is available. [0004] A prior art arrangement that can be used in both cases is a lighting system compri...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/00F21L4/00F21L4/08F21S9/00F21S9/02F21Y101/02F21Y101/00
CPCF21S9/02F21V29/2206F21S6/004F21Y2105/001F21V29/004F21V19/04F21Y2101/02F21V17/14F21V29/74F21Y2105/10F21Y2115/10F21V29/00F21V29/70
Inventor T·C·特鲁尔涅特
Owner KONINK PHILIPS ELECTRONICS NV