Lens, light source unit, backlight apparatus, and display apparatus
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United States of America Patent
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Oct 4, 2022
Grant Date -
Jan 11, 2018
app pub date -
Jul 18, 2017
filing date -
Feb 15, 2008
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Abstract
A lens diffusing light emitted from a light source includes a concave light-incident surface, a light guide portion, and a light-emitting surface. The light-incident surface includes a plane portion opposed to the light source and an optical function portion that is formed on the plane portion and one of scatters and diffuses the light. The light emitted from the light source enters the light-incident surface. The light that has entered the light-incident surface passes through the light guide portion. The light-emitting surface emits the light passed through the light guide portion.
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