Invention Application
US20130188364A1 OPTICAL SHEET, OPTICAL UNIT AND LIGHTING DEVICE USING THE SAME
审中-公开
光学片，光学单元和使用该光学单元的照明设备
- Patent Title: OPTICAL SHEET, OPTICAL UNIT AND LIGHTING DEVICE USING THE SAME
- Patent Title (中): 光学片，光学单元和使用该光学单元的照明设备
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Application No.: US13825095Application Date: 2011-03-04
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Publication No.: US20130188364A1Publication Date: 2013-07-25
- Inventor: Su Hyeon Cho , Dong Hyun Lee
- Applicant: Su Hyeon Cho , Dong Hyun Lee
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Priority: KR10-2010-0092299 20100920; KR10-2010-0126494 20101210
- International Application: PCT/KR11/01503 WO 20110304
- Main IPC: G02B5/04
- IPC: G02B5/04
Abstract:
The present invention relates to an optical sheet or an optical unit used for a lighting device. In particular, the present invention provides an optical sheet comprising a plurality of lens patterns formed on a base member, where SAG (height H: lens diameter R) of the lens pattern ranges from 0.01 to 0.3. The present invention provides an optical sheet which minimizes total reflection by adjusting SAG of a lens pattern formed on a base member, thereby realizing a high-brightness lighting device.
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