Reading lamp or spotlight
First Claim
Patent Images
1. A reading device for use in a vehicle, comprising:
- an LED light source comprising a color temperature adjustable between a warm-white color to and a cold-white color and adapted to emit a light, the LED light source comprising;
a first high-power LED that emits a warm-white light;
a second high-power LED that emits a cold-white light;
a third high-power LED that emits a red light; and
a fourth high-power LED that emits a LED cyan light of a predetermined color characteristic,wherein color temperatures of the first high-power LED, the second high-power LED, the third high-power LED, and the fourth high-power LED are adapted to determine a color of the light,wherein a color location of the first high-power LED, the second high-power LED, the third high-power LED, and the fourth high-power LED, within a CIE diagram form corner points of a plane figure having at least four sides and angles that includes a Planck curve;
a primary optics; and
a micro-lens downstream from the primary optics at a predetermined distance adapted to focus the light onto a surface, the micro-lens further adapted to mix a light spectra emitted from the LED light source to generate a substantially white light that approximates thermal radiators and deflects the light onto the surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A reading device, such as a reading lamp or reading spotlight, is provided for use in a vehicle, such as a motor vehicle with immovable properties or ships. The reading device for example can be used in passenger cabins and/or cockpits of aircraft. The reading device includes, but is not limited to an LED light source with a color temperature that can be adjusted with the color “warm-white” to “cold-white”, a primary optics or lens advantageously designed as a converging lens, and a secondary optics or lens to focus the light emitted by the light source onto a surface, such as a reading plane to be illuminated.
-
Citations
20 Claims
-
1. A reading device for use in a vehicle, comprising:
-
an LED light source comprising a color temperature adjustable between a warm-white color to and a cold-white color and adapted to emit a light, the LED light source comprising; a first high-power LED that emits a warm-white light; a second high-power LED that emits a cold-white light; a third high-power LED that emits a red light; and a fourth high-power LED that emits a LED cyan light of a predetermined color characteristic, wherein color temperatures of the first high-power LED, the second high-power LED, the third high-power LED, and the fourth high-power LED are adapted to determine a color of the light, wherein a color location of the first high-power LED, the second high-power LED, the third high-power LED, and the fourth high-power LED, within a CIE diagram form corner points of a plane figure having at least four sides and angles that includes a Planck curve; a primary optics; and a micro-lens downstream from the primary optics at a predetermined distance adapted to focus the light onto a surface, the micro-lens further adapted to mix a light spectra emitted from the LED light source to generate a substantially white light that approximates thermal radiators and deflects the light onto the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification