Lighting system for use in vehicle cabin
First Claim
Patent Images
1. A lighting system for use in a cabin of a vehicle, the vehicle having a roof, a floor, a door and a seat occupant, the lighting system comprising:
- a plurality of first lamps arranged between the roof and a plane including an eye point of the seat occupant, said plurality of first lamps illuminating predetermined surfaces;
at least one second lamp so constructed and arranged as to illuminate the floor; and
first means for allowing said predetermined surfaces to obtain predetermined luminance levels.
2 Assignments
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Accused Products
Abstract
A lighting system for use in a vehicle cabin comprises a plurality of first lamps which are arranged between a roof and a plane including an eye point of a seat occupant for illuminating predetermined surfaces, and at least one second lamp for illuminating a floor. Luminance levels of the predetermined surfaces are controlled by, for example, an illuminance measuring apparatus, a luminance measuring apparatus, and a lighting controller.
17 Citations
16 Claims
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1. A lighting system for use in a cabin of a vehicle, the vehicle having a roof, a floor, a door and a seat occupant, the lighting system comprising:
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a plurality of first lamps arranged between the roof and a plane including an eye point of the seat occupant, said plurality of first lamps illuminating predetermined surfaces; at least one second lamp so constructed and arranged as to illuminate the floor; and first means for allowing said predetermined surfaces to obtain predetermined luminance levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lighting system for use in a cabin of a vehicle, the vehicle having a roof, a floor, a seat and a seat occupant, the lighting system comprising:
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a plurality of seat lamps arranged between the roof and a plane including an eye point of the seat occupant, said plurality of first lamps illuminating predetermined surfaces; a plurality of reading lamps arranged in the vicinity of said plurality of seat lamps; at least one second lamp so constructed and arranged as to illuminate the floor; and means for measuring an illuminance of said seat and generating an illuminance indicative signal indicative of said illuminance measured; means for measuring a luminance of said predetermined surfaces and generating a luminance indicative signal indicative of said luminance measured; and means for controlling said plurality of seat lamps, said plurality of reading lamps, and said at least one foot lamp in response to said illuminance indicative signal and said luminance indicative signal.
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13. A lighting system for use in a cabin of a vehicle, the vehicle having a roof, a floor, a door, a seat cushion and a seat occupant, the lighting system comprising:
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a plurality of ceiling lamps arranged between the roof and a plane including an eye point of the seat occupant; at least one second lamp arranged between the seat cushion and the floor; a plurality of third lamps supported to the door; and means for defining illumination ranges of said plurality of ceiling lamps, said at least one second lamp, and said plurality of third lamps. - View Dependent Claims (14, 15, 16)
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Specification