Axial LED source
First Claim
Patent Images
1. A lamp, comprising:
- a post aligned along a lamp axis;
a plurality of LED sources mounted on the post, wherein normal vectors to light emitting surfaces of the LED sources are approximately perpendicular to the lamp axis; and
a reflector for guiding light primarily along the lamp axis, wherein the reflector is comprises reflective segments each optimized for a different LED source, so that each LED source primarily illuminates a different reflective segment.
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Abstract
A lamp has LED sources that are placed about a lamp axis in an axial arrangement. The lamp includes a post with post facets where the LED sources are mounted. The lamp includes a segmented reflector for guiding light from the LED sources. The segmented reflector includes reflective segments each of which is illuminated primarily by light from one of the post facets (e.g., one of the LED sources on the post facet). The LED sources may be made up of one or more LED dies. The LED dies may include optic-on-chip lenses to direct the light from each post facet to a corresponding reflective segment. The LED dies may be of different sizes and colors chosen to generate a particular far-field pattern.
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Citations
40 Claims
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1. A lamp, comprising:
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a post aligned along a lamp axis;
a plurality of LED sources mounted on the post, wherein normal vectors to light emitting surfaces of the LED sources are approximately perpendicular to the lamp axis; and
a reflector for guiding light primarily along the lamp axis, wherein the reflector is comprises reflective segments each optimized for a different LED source, so that each LED source primarily illuminates a different reflective segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for generating a far-field pattern with a lamp having a plurality of LED sources on a post aligned with a lamp axis and a reflector including reflective segments each optimized for a different LED source so that each LED source primarily illuminates a different reflective segment the method comprising:
- independently controlling (1) a first LED source and (2) a second LED source to generate the far-field pattern.
- View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
Specification