LED based light guide for dual mode aircraft formation lighting
First Claim
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1. A lighting device utilizing a diode light source, the device comprising:
- a reflective base;
a light guide configured in front of the reflective base, the light guide including a plurality of diffusing elements; and
one or more diode light sources each configured to emit light in a direction incident to a peripheral edge of the light guide, wherein the diffusing elements are configured to scatter the emitted light in a plurality of directions out of a front surface of the light guide.
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Abstract
A lighting device (1) includes one or more diode light sources (32), which are configured to emit light into the peripheral edges of a light guide (20). The light guide (20) includes a set of diffusing elements (22) for scattering the emitted light in a plurality of directions out of the front surface of the light guide (20). The diffusing elements (22) are distributed on the light guide (20) so that the scattered light achieves a particular characteristic, e.g., improved uniformity.
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Citations
29 Claims
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1. A lighting device utilizing a diode light source, the device comprising:
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a reflective base;
a light guide configured in front of the reflective base, the light guide including a plurality of diffusing elements; and
one or more diode light sources each configured to emit light in a direction incident to a peripheral edge of the light guide, wherein the diffusing elements are configured to scatter the emitted light in a plurality of directions out of a front surface of the light guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of outputting a formation light from the exterior of an aircraft, comprising:
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emitting light from one or more diode light sources in a direction incident to a peripheral edge of a light guide;
scattering the emitted light with diffusing elements in the light guide, the diffusing elements being configured to scatter the emitted light out of the light guide in a plurality of directions; and
reflecting light that is scattered out of the light guide through a rear surface, so that the reflected light exits a front surface of the light guide. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification