Illumination device
First Claim
Patent Images
1. An illumination device comprising:
- at least one LED;
at least one first lens disposed on a light emission side of said at least one LED so that light emitted from the at least one LED is converged by said first lens and radiated through said first lens; and
at least one second lens disposed on the light radiation side of said first lens so that said light radiated through said first lens is converged as substantially parallel light beams by the second lens and radiated through said second lens, further comprising at least one reflector by which light emitted laterally from said at least one LED is reflected toward a light-extracting direction.
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Accused Products
Abstract
The invention is directed to provide a vehicle interior illumination device which has a high illuminating effect and which can be used for various kinds of illumination in a vehicle. The illumination device disposed in a roof portion of the interior of a vehicle, including: a first light-emitting section having a first light source constituted by a plurality of first LEDs disposed at substantially regular spaces; and a second light-emitting section having a second light source constituted by a second LED, and a second outer lens with which a light emission side of the second light source is covered and by which light emitted from said second light source is converged and radiated out.
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Citations
22 Claims
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1. An illumination device comprising:
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at least one LED;
at least one first lens disposed on a light emission side of said at least one LED so that light emitted from the at least one LED is converged by said first lens and radiated through said first lens; and
at least one second lens disposed on the light radiation side of said first lens so that said light radiated through said first lens is converged as substantially parallel light beams by the second lens and radiated through said second lens, further comprising at least one reflector by which light emitted laterally from said at least one LED is reflected toward a light-extracting direction. - View Dependent Claims (3)
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2. An illumination device comprising:
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at least one LED;
at least one first lens disposed on a light emission side of said at least one LED so that light emitted from the at least one LED is converged by said first lens and radiated through said first lens; and
at least one second lens disposed on the light radiation side of said first lens so that said light radiated through said first lens is converged as substantially parallel light beams by the second lens and radiated through said second lens. wherein said first lens includes a recess formed on the at least one LED side so that said at least one LED is disposed in said recess. - View Dependent Claims (21)
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4. An illumination device comprising:
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a plurality of LEDs;
a board on which said plurality of LEDs are mounted;
a first lens plate disposed on a light emission side of said plurality of LEDs and including a plurality of first lens portions each including a convex lens shape, said plurality of first lens portions being formed in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a second lens plate disposed on a light radiation side of said first lens plate and including a plurality of second lens portions each including a convex lens shape, said plurality of second lens portions being formed in regions in which light beams radiated through said first lens portions of said first lens plate are led respectively, further comprising a reflector by which light emitted laterally from said plurality of LEDs is reflected toward a light-extracting direction. - View Dependent Claims (6)
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5. An illumination device comprising:
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a plurality of LEDs;
a board on which said plurality of LEDs are mounted;
a first lens plate disposed on a light emission side of said plurality of LEDs and including a plurality of first lens portions each including a convex lens shape, said plurality of first lens portions being formed in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a second lens plate disposed on a light radiation side of said first lens plate and including a plurality of second lens portions each including a convex lens shape, said plurality of second lens portions being formed in regions in which light beams radiated through said first lens portions of said first lens plate are led respectively, wherein said second lens portions are provided so that light beams led into said second lens portions through said first lens portions are converged as substantially parallel light beams by said second lens portions and radiated through said second lens portions. - View Dependent Claims (22)
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7. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction, further comprising a reflector by which light emitted laterally from said plurality of LEDs is reflected toward the light-extracting direction.
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8. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction, wherein each of said lens portions includes a central portion protruded like a convex lens.
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9. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaved lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction. wherein each of said circumferential portions of said lens portions includes a region protruded like a convex lens.
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10. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively;
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction; and
a cover substantially shaped like a flat plate and disposed on a light radiation side of said lens plate.
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11. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction, wherein said lens plate includes recesses formed on the LED side of said lens portions so that said plurality of LEDs are disposed in said recesses respectively.
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12. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction. wherein each of said plurality of LEDs comprises a chip type LED.
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13. An illumination device comprising:
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a plurality of LEDs;
a lens plate disposed on a light emission side of said LEDs and including substantially reverse bowl-shaped lens portions in regions in which light beams emitted from said plurality of LEDs are led respectively; and
a reflector by which light emitted from said plurality of LEDs and radiated through circumferential portions of said lens portions is reflected toward a light-extracting direction, wherein said illumination device is disposed in a roof portion of the interior of a vehicle and further comprises a plurality of LED light sources which are disposed so that light beams emitted from said plurality of LED light sources illuminate specific areas respectively. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification