Invention Application
- Patent Title: OPTICAL MEMBER AND METHOD FOR PRODUCING OPTICAL MEMBER
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Application No.: US16066645Application Date: 2016-12-21
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Publication No.: US20190016084A1Publication Date: 2019-01-17
- Inventor: HIDEKAZU HAYASHI , TOKIO TAGUCHI , NOBUAKI YAMADA
- Applicant: SHARP KABUSHIKI KAISHA
- Priority: JP2015-256798 20151228
- International Application: PCT/JP2016/088015 WO 20161221
- Main IPC: B32B3/30
- IPC: B32B3/30 ; B32B27/08 ; B32B27/30 ; C23C14/00 ; C23C14/10 ; C23C14/34 ; G02B1/18 ; G02B1/118

Abstract:
The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.
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