Light source
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United States of America Patent
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Jul 7, 2015
Grant Date -
Sep 26, 2013
app pub date -
Sep 28, 2011
filing date -
Sep 28, 2010
priority date (Note) -
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Abstract
According to embodiments of the present invention, an ocular lens is provided. The ocular lens includes an optical filter configured to change a chromaticity of light impinging on the ocular lens so as to transmit a filtered light to an eye of a viewer, wherein the filtered light comprises a first light having a first peak wavelength in a range of between about 460 nm and about 490 nm and a second peak wavelength in a range of between about 490 nm and about 550 nm.
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