Lighting device, luminaire, vehicle with same, and lighting method
First Claim
1. A lighting device for causing at least one light source unit to emit light, each of the at least one light source unit including a light source and a corresponding load information outputter for outputting load information when electric power is supplied thereto, the load information representing a luminous characteristic of the light source, and the lighting device comprising:
- at least one current outputter configured to supply a current to the light source of the at least one light source unit;
a load characteristic obtainer configured to obtain the load information from the corresponding load information outputter of the at least one light source unit, by supplying the electric power to the load information outputter; and
a controller configured to control the current of the at least one current outputter, which is supplied to the light source of the at least one light source unit, based on the load information obtained by the load characteristic obtainer,the load characteristic obtainer being configured to supply the electric power to the corresponding load information outputter only during a time period of obtaining the load information, but stop supply of the electric power to the corresponding load information outputter during a time period other than the time period of obtaining the load information.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting device includes a current outputter, a load characteristic obtainer and a controller. The current outputter is configured to supply a current to a light source of at least one light source unit. The load characteristic obtainer is configured to obtain load information from a corresponding load information outputter of the at least one light source unit, by supplying the electric power to the load information outputter. The controller is configured to control the current of the current outputter, which is supplied to the light source, based on the load information. The load characteristic obtainer is configured to supply the electric power to the corresponding load information outputter only during a time period of obtaining the load information, but stop supply of the electric power to the corresponding load information outputter during a time period other than the time period of obtaining the load information.
15 Citations
18 Claims
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1. A lighting device for causing at least one light source unit to emit light, each of the at least one light source unit including a light source and a corresponding load information outputter for outputting load information when electric power is supplied thereto, the load information representing a luminous characteristic of the light source, and the lighting device comprising:
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at least one current outputter configured to supply a current to the light source of the at least one light source unit; a load characteristic obtainer configured to obtain the load information from the corresponding load information outputter of the at least one light source unit, by supplying the electric power to the load information outputter; and a controller configured to control the current of the at least one current outputter, which is supplied to the light source of the at least one light source unit, based on the load information obtained by the load characteristic obtainer, the load characteristic obtainer being configured to supply the electric power to the corresponding load information outputter only during a time period of obtaining the load information, but stop supply of the electric power to the corresponding load information outputter during a time period other than the time period of obtaining the load information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lighting method for causing at least one light source unit to emit light, each of the at least one light source unit including a light source and a corresponding load information outputter for outputting load information when electric power is supplied thereto, the load information representing a luminous characteristic of the light source, and the lighting method comprising:
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supplying a current to the light source of the at least one light source unit; obtaining the load information from the corresponding load information outputter of the at least one light source unit, by supplying the electric power to the load information outputter; controlling the current of at least one current outputter, which is supplied to the light source of the at least one light source unit, based on the load information obtained; and supplying the electric power to the corresponding load information outputter only during a time period of obtaining the load information, but stopping supply of the electric power to the corresponding load information outputter during a time period other than the time period of obtaining the load information.
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18. A lighting device for causing at least one light source unit to emit light, each of the at least one light source unit including a light source and a corresponding temperature probe, the lighting device comprising:
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at least one current outputter configured to supply a current to the light source of the at least one light source unit; a temperature obtainer configured to obtain a measuring value of a temperature from the corresponding temperature probe, by supplying power to the temperature probe; and a controller configured to control the current of the at least one current outputter, which is supplied to the light source of the at least one light source unit, based on the measuring value of the temperature obtained by the temperature obtainer, the temperature obtainer being configured to supply the power to the corresponding temperature probe only during a time period of obtaining the measuring value of the temperature, but stop supply of the power to the corresponding temperature probe during a time period other than the time period of obtaining the measuring value of the temperature.
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Specification