Light Mixing Systems Having Color Free Doublets
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United States of America Patent
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Issued Date -
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app pub date -
Jun 17, 2016
filing date -
Jun 17, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
In one aspect, a lighting system is disclosed that includes a light pipe having an input surface for receiving light from at least one light source and an output surface through which light exits the light pipe. A lens doublet comprising two lenses is optically coupled to the output surface of the light pipe for receiving at least a portion of the light exiting the light pipe and projecting the light, e.g., onto a target surface. The lens doublet exhibits a chromatic aberration that is less than the chromatic aberration exhibited by the individual lenses of the doublet. In some embodiments, the lens doublet exhibits a chromatic aberration that is less than about 0.22 diopters for wavelengths over a range of about 450 nm to about 650 nm.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| EP | A1 | EP3311066 | Jun 17, 2016 |
| WO | A1 | WO2016205665 | Jun 17, 2016 |
International Classification(s)
- 2016 Application Filing Year
- F21V Class
- 4134 Applications Filed
- 3005 Patents Issued To-Date
- 72.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 13 Citation Count
- F21V Class
- 75.05 % this patent is cited more than
- 9 Age