OPTICAL LENS, LIGHT-EMITTING DEVICE AND BACKLIGHT MODULE
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United States of America Patent
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Issued Date -
Feb 11, 2021
app pub date -
Jul 31, 2020
filing date -
Aug 7, 2019
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Abstract
An optical lens, a light-emitting device and a backlight module are provided. The optical lens is used for adjusting light emitted from a light-emitting unit. The optical lens includes a light-incident surface and a light-emitting surface. The light-incident surface encloses a space for accommodating the light-emitting unit. The light-emitting surface is used for receiving and emitting light entering the optical lens via the light-incident surface. The optical lens has an optical axis, with respect to which the light-incident surface is asymmetric.
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